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authorJonas Kohl2024-11-08 09:35:25 +0100
committerJonas Kohl2024-11-08 09:35:25 +0100
commit5e82199ed199ee0d520f125f8f1b092399b890c3 (patch)
tree2877b317f3811ccdf1b3e4526313379924536f87 /public/codemirror.js
parent0aa6ceacde931b34738ee61953c1cebc874196de (diff)
Move third-party frontend libraries to dist so they don't get included by Linguist
Diffstat (limited to 'public/codemirror.js')
-rw-r--r--public/codemirror.js9884
1 files changed, 0 insertions, 9884 deletions
diff --git a/public/codemirror.js b/public/codemirror.js
deleted file mode 100644
index e42b63b..0000000
--- a/public/codemirror.js
+++ /dev/null
@@ -1,9884 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: https://codemirror.net/5/LICENSE
-
-// This is CodeMirror (https://codemirror.net/5), a code editor
-// implemented in JavaScript on top of the browser's DOM.
-//
-// You can find some technical background for some of the code below
-// at http://marijnhaverbeke.nl/blog/#cm-internals .
-
-(function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
- typeof define === 'function' && define.amd ? define(factory) :
- (global = global || self, global.CodeMirror = factory());
-}(this, (function () { 'use strict';
-
- // Kludges for bugs and behavior differences that can't be feature
- // detected are enabled based on userAgent etc sniffing.
- var userAgent = navigator.userAgent;
- var platform = navigator.platform;
-
- var gecko = /gecko\/\d/i.test(userAgent);
- var ie_upto10 = /MSIE \d/.test(userAgent);
- var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
- var edge = /Edge\/(\d+)/.exec(userAgent);
- var ie = ie_upto10 || ie_11up || edge;
- var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
- var webkit = !edge && /WebKit\//.test(userAgent);
- var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
- var chrome = !edge && /Chrome\/(\d+)/.exec(userAgent);
- var chrome_version = chrome && +chrome[1];
- var presto = /Opera\//.test(userAgent);
- var safari = /Apple Computer/.test(navigator.vendor);
- var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
- var phantom = /PhantomJS/.test(userAgent);
-
- var ios = safari && (/Mobile\/\w+/.test(userAgent) || navigator.maxTouchPoints > 2);
- var android = /Android/.test(userAgent);
- // This is woefully incomplete. Suggestions for alternative methods welcome.
- var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
- var mac = ios || /Mac/.test(platform);
- var chromeOS = /\bCrOS\b/.test(userAgent);
- var windows = /win/i.test(platform);
-
- var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
- if (presto_version) { presto_version = Number(presto_version[1]); }
- if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
- // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
- var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
- var captureRightClick = gecko || (ie && ie_version >= 9);
-
- function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
-
- var rmClass = function(node, cls) {
- var current = node.className;
- var match = classTest(cls).exec(current);
- if (match) {
- var after = current.slice(match.index + match[0].length);
- node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
- }
- };
-
- function removeChildren(e) {
- for (var count = e.childNodes.length; count > 0; --count)
- { e.removeChild(e.firstChild); }
- return e
- }
-
- function removeChildrenAndAdd(parent, e) {
- return removeChildren(parent).appendChild(e)
- }
-
- function elt(tag, content, className, style) {
- var e = document.createElement(tag);
- if (className) { e.className = className; }
- if (style) { e.style.cssText = style; }
- if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
- else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
- return e
- }
- // wrapper for elt, which removes the elt from the accessibility tree
- function eltP(tag, content, className, style) {
- var e = elt(tag, content, className, style);
- e.setAttribute("role", "presentation");
- return e
- }
-
- var range;
- if (document.createRange) { range = function(node, start, end, endNode) {
- var r = document.createRange();
- r.setEnd(endNode || node, end);
- r.setStart(node, start);
- return r
- }; }
- else { range = function(node, start, end) {
- var r = document.body.createTextRange();
- try { r.moveToElementText(node.parentNode); }
- catch(e) { return r }
- r.collapse(true);
- r.moveEnd("character", end);
- r.moveStart("character", start);
- return r
- }; }
-
- function contains(parent, child) {
- if (child.nodeType == 3) // Android browser always returns false when child is a textnode
- { child = child.parentNode; }
- if (parent.contains)
- { return parent.contains(child) }
- do {
- if (child.nodeType == 11) { child = child.host; }
- if (child == parent) { return true }
- } while (child = child.parentNode)
- }
-
- function activeElt(rootNode) {
- // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
- // IE < 10 will throw when accessed while the page is loading or in an iframe.
- // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
- var doc = rootNode.ownerDocument || rootNode;
- var activeElement;
- try {
- activeElement = rootNode.activeElement;
- } catch(e) {
- activeElement = doc.body || null;
- }
- while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
- { activeElement = activeElement.shadowRoot.activeElement; }
- return activeElement
- }
-
- function addClass(node, cls) {
- var current = node.className;
- if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
- }
- function joinClasses(a, b) {
- var as = a.split(" ");
- for (var i = 0; i < as.length; i++)
- { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
- return b
- }
-
- var selectInput = function(node) { node.select(); };
- if (ios) // Mobile Safari apparently has a bug where select() is broken.
- { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
- else if (ie) // Suppress mysterious IE10 errors
- { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }
-
- function doc(cm) { return cm.display.wrapper.ownerDocument }
-
- function root(cm) {
- return rootNode(cm.display.wrapper)
- }
-
- function rootNode(element) {
- // Detect modern browsers (2017+).
- return element.getRootNode ? element.getRootNode() : element.ownerDocument
- }
-
- function win(cm) { return doc(cm).defaultView }
-
- function bind(f) {
- var args = Array.prototype.slice.call(arguments, 1);
- return function(){return f.apply(null, args)}
- }
-
- function copyObj(obj, target, overwrite) {
- if (!target) { target = {}; }
- for (var prop in obj)
- { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
- { target[prop] = obj[prop]; } }
- return target
- }
-
- // Counts the column offset in a string, taking tabs into account.
- // Used mostly to find indentation.
- function countColumn(string, end, tabSize, startIndex, startValue) {
- if (end == null) {
- end = string.search(/[^\s\u00a0]/);
- if (end == -1) { end = string.length; }
- }
- for (var i = startIndex || 0, n = startValue || 0;;) {
- var nextTab = string.indexOf("\t", i);
- if (nextTab < 0 || nextTab >= end)
- { return n + (end - i) }
- n += nextTab - i;
- n += tabSize - (n % tabSize);
- i = nextTab + 1;
- }
- }
-
- var Delayed = function() {
- this.id = null;
- this.f = null;
- this.time = 0;
- this.handler = bind(this.onTimeout, this);
- };
- Delayed.prototype.onTimeout = function (self) {
- self.id = 0;
- if (self.time <= +new Date) {
- self.f();
- } else {
- setTimeout(self.handler, self.time - +new Date);
- }
- };
- Delayed.prototype.set = function (ms, f) {
- this.f = f;
- var time = +new Date + ms;
- if (!this.id || time < this.time) {
- clearTimeout(this.id);
- this.id = setTimeout(this.handler, ms);
- this.time = time;
- }
- };
-
- function indexOf(array, elt) {
- for (var i = 0; i < array.length; ++i)
- { if (array[i] == elt) { return i } }
- return -1
- }
-
- // Number of pixels added to scroller and sizer to hide scrollbar
- var scrollerGap = 50;
-
- // Returned or thrown by various protocols to signal 'I'm not
- // handling this'.
- var Pass = {toString: function(){return "CodeMirror.Pass"}};
-
- // Reused option objects for setSelection & friends
- var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
-
- // The inverse of countColumn -- find the offset that corresponds to
- // a particular column.
- function findColumn(string, goal, tabSize) {
- for (var pos = 0, col = 0;;) {
- var nextTab = string.indexOf("\t", pos);
- if (nextTab == -1) { nextTab = string.length; }
- var skipped = nextTab - pos;
- if (nextTab == string.length || col + skipped >= goal)
- { return pos + Math.min(skipped, goal - col) }
- col += nextTab - pos;
- col += tabSize - (col % tabSize);
- pos = nextTab + 1;
- if (col >= goal) { return pos }
- }
- }
-
- var spaceStrs = [""];
- function spaceStr(n) {
- while (spaceStrs.length <= n)
- { spaceStrs.push(lst(spaceStrs) + " "); }
- return spaceStrs[n]
- }
-
- function lst(arr) { return arr[arr.length-1] }
-
- function map(array, f) {
- var out = [];
- for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
- return out
- }
-
- function insertSorted(array, value, score) {
- var pos = 0, priority = score(value);
- while (pos < array.length && score(array[pos]) <= priority) { pos++; }
- array.splice(pos, 0, value);
- }
-
- function nothing() {}
-
- function createObj(base, props) {
- var inst;
- if (Object.create) {
- inst = Object.create(base);
- } else {
- nothing.prototype = base;
- inst = new nothing();
- }
- if (props) { copyObj(props, inst); }
- return inst
- }
-
- var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
- function isWordCharBasic(ch) {
- return /\w/.test(ch) || ch > "\x80" &&
- (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
- }
- function isWordChar(ch, helper) {
- if (!helper) { return isWordCharBasic(ch) }
- if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
- return helper.test(ch)
- }
-
- function isEmpty(obj) {
- for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
- return true
- }
-
- // Extending unicode characters. A series of a non-extending char +
- // any number of extending chars is treated as a single unit as far
- // as editing and measuring is concerned. This is not fully correct,
- // since some scripts/fonts/browsers also treat other configurations
- // of code points as a group.
- var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
- function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
-
- // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
- function skipExtendingChars(str, pos, dir) {
- while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
- return pos
- }
-
- // Returns the value from the range [`from`; `to`] that satisfies
- // `pred` and is closest to `from`. Assumes that at least `to`
- // satisfies `pred`. Supports `from` being greater than `to`.
- function findFirst(pred, from, to) {
- // At any point we are certain `to` satisfies `pred`, don't know
- // whether `from` does.
- var dir = from > to ? -1 : 1;
- for (;;) {
- if (from == to) { return from }
- var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
- if (mid == from) { return pred(mid) ? from : to }
- if (pred(mid)) { to = mid; }
- else { from = mid + dir; }
- }
- }
-
- // BIDI HELPERS
-
- function iterateBidiSections(order, from, to, f) {
- if (!order) { return f(from, to, "ltr", 0) }
- var found = false;
- for (var i = 0; i < order.length; ++i) {
- var part = order[i];
- if (part.from < to && part.to > from || from == to && part.to == from) {
- f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
- found = true;
- }
- }
- if (!found) { f(from, to, "ltr"); }
- }
-
- var bidiOther = null;
- function getBidiPartAt(order, ch, sticky) {
- var found;
- bidiOther = null;
- for (var i = 0; i < order.length; ++i) {
- var cur = order[i];
- if (cur.from < ch && cur.to > ch) { return i }
- if (cur.to == ch) {
- if (cur.from != cur.to && sticky == "before") { found = i; }
- else { bidiOther = i; }
- }
- if (cur.from == ch) {
- if (cur.from != cur.to && sticky != "before") { found = i; }
- else { bidiOther = i; }
- }
- }
- return found != null ? found : bidiOther
- }
-
- // Bidirectional ordering algorithm
- // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
- // that this (partially) implements.
-
- // One-char codes used for character types:
- // L (L): Left-to-Right
- // R (R): Right-to-Left
- // r (AL): Right-to-Left Arabic
- // 1 (EN): European Number
- // + (ES): European Number Separator
- // % (ET): European Number Terminator
- // n (AN): Arabic Number
- // , (CS): Common Number Separator
- // m (NSM): Non-Spacing Mark
- // b (BN): Boundary Neutral
- // s (B): Paragraph Separator
- // t (S): Segment Separator
- // w (WS): Whitespace
- // N (ON): Other Neutrals
-
- // Returns null if characters are ordered as they appear
- // (left-to-right), or an array of sections ({from, to, level}
- // objects) in the order in which they occur visually.
- var bidiOrdering = (function() {
- // Character types for codepoints 0 to 0xff
- var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
- // Character types for codepoints 0x600 to 0x6f9
- var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
- function charType(code) {
- if (code <= 0xf7) { return lowTypes.charAt(code) }
- else if (0x590 <= code && code <= 0x5f4) { return "R" }
- else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
- else if (0x6ee <= code && code <= 0x8ac) { return "r" }
- else if (0x2000 <= code && code <= 0x200b) { return "w" }
- else if (code == 0x200c) { return "b" }
- else { return "L" }
- }
-
- var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
- var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
-
- function BidiSpan(level, from, to) {
- this.level = level;
- this.from = from; this.to = to;
- }
-
- return function(str, direction) {
- var outerType = direction == "ltr" ? "L" : "R";
-
- if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
- var len = str.length, types = [];
- for (var i = 0; i < len; ++i)
- { types.push(charType(str.charCodeAt(i))); }
-
- // W1. Examine each non-spacing mark (NSM) in the level run, and
- // change the type of the NSM to the type of the previous
- // character. If the NSM is at the start of the level run, it will
- // get the type of sor.
- for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
- var type = types[i$1];
- if (type == "m") { types[i$1] = prev; }
- else { prev = type; }
- }
-
- // W2. Search backwards from each instance of a European number
- // until the first strong type (R, L, AL, or sor) is found. If an
- // AL is found, change the type of the European number to Arabic
- // number.
- // W3. Change all ALs to R.
- for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
- var type$1 = types[i$2];
- if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
- else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
- }
-
- // W4. A single European separator between two European numbers
- // changes to a European number. A single common separator between
- // two numbers of the same type changes to that type.
- for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
- var type$2 = types[i$3];
- if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
- else if (type$2 == "," && prev$1 == types[i$3+1] &&
- (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
- prev$1 = type$2;
- }
-
- // W5. A sequence of European terminators adjacent to European
- // numbers changes to all European numbers.
- // W6. Otherwise, separators and terminators change to Other
- // Neutral.
- for (var i$4 = 0; i$4 < len; ++i$4) {
- var type$3 = types[i$4];
- if (type$3 == ",") { types[i$4] = "N"; }
- else if (type$3 == "%") {
- var end = (void 0);
- for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
- var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
- for (var j = i$4; j < end; ++j) { types[j] = replace; }
- i$4 = end - 1;
- }
- }
-
- // W7. Search backwards from each instance of a European number
- // until the first strong type (R, L, or sor) is found. If an L is
- // found, then change the type of the European number to L.
- for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
- var type$4 = types[i$5];
- if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
- else if (isStrong.test(type$4)) { cur$1 = type$4; }
- }
-
- // N1. A sequence of neutrals takes the direction of the
- // surrounding strong text if the text on both sides has the same
- // direction. European and Arabic numbers act as if they were R in
- // terms of their influence on neutrals. Start-of-level-run (sor)
- // and end-of-level-run (eor) are used at level run boundaries.
- // N2. Any remaining neutrals take the embedding direction.
- for (var i$6 = 0; i$6 < len; ++i$6) {
- if (isNeutral.test(types[i$6])) {
- var end$1 = (void 0);
- for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
- var before = (i$6 ? types[i$6-1] : outerType) == "L";
- var after = (end$1 < len ? types[end$1] : outerType) == "L";
- var replace$1 = before == after ? (before ? "L" : "R") : outerType;
- for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
- i$6 = end$1 - 1;
- }
- }
-
- // Here we depart from the documented algorithm, in order to avoid
- // building up an actual levels array. Since there are only three
- // levels (0, 1, 2) in an implementation that doesn't take
- // explicit embedding into account, we can build up the order on
- // the fly, without following the level-based algorithm.
- var order = [], m;
- for (var i$7 = 0; i$7 < len;) {
- if (countsAsLeft.test(types[i$7])) {
- var start = i$7;
- for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
- order.push(new BidiSpan(0, start, i$7));
- } else {
- var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
- for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
- for (var j$2 = pos; j$2 < i$7;) {
- if (countsAsNum.test(types[j$2])) {
- if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
- var nstart = j$2;
- for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
- order.splice(at, 0, new BidiSpan(2, nstart, j$2));
- at += isRTL;
- pos = j$2;
- } else { ++j$2; }
- }
- if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
- }
- }
- if (direction == "ltr") {
- if (order[0].level == 1 && (m = str.match(/^\s+/))) {
- order[0].from = m[0].length;
- order.unshift(new BidiSpan(0, 0, m[0].length));
- }
- if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
- lst(order).to -= m[0].length;
- order.push(new BidiSpan(0, len - m[0].length, len));
- }
- }
-
- return direction == "rtl" ? order.reverse() : order
- }
- })();
-
- // Get the bidi ordering for the given line (and cache it). Returns
- // false for lines that are fully left-to-right, and an array of
- // BidiSpan objects otherwise.
- function getOrder(line, direction) {
- var order = line.order;
- if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
- return order
- }
-
- // EVENT HANDLING
-
- // Lightweight event framework. on/off also work on DOM nodes,
- // registering native DOM handlers.
-
- var noHandlers = [];
-
- var on = function(emitter, type, f) {
- if (emitter.addEventListener) {
- emitter.addEventListener(type, f, false);
- } else if (emitter.attachEvent) {
- emitter.attachEvent("on" + type, f);
- } else {
- var map = emitter._handlers || (emitter._handlers = {});
- map[type] = (map[type] || noHandlers).concat(f);
- }
- };
-
- function getHandlers(emitter, type) {
- return emitter._handlers && emitter._handlers[type] || noHandlers
- }
-
- function off(emitter, type, f) {
- if (emitter.removeEventListener) {
- emitter.removeEventListener(type, f, false);
- } else if (emitter.detachEvent) {
- emitter.detachEvent("on" + type, f);
- } else {
- var map = emitter._handlers, arr = map && map[type];
- if (arr) {
- var index = indexOf(arr, f);
- if (index > -1)
- { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
- }
- }
- }
-
- function signal(emitter, type /*, values...*/) {
- var handlers = getHandlers(emitter, type);
- if (!handlers.length) { return }
- var args = Array.prototype.slice.call(arguments, 2);
- for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
- }
-
- // The DOM events that CodeMirror handles can be overridden by
- // registering a (non-DOM) handler on the editor for the event name,
- // and preventDefault-ing the event in that handler.
- function signalDOMEvent(cm, e, override) {
- if (typeof e == "string")
- { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
- signal(cm, override || e.type, cm, e);
- return e_defaultPrevented(e) || e.codemirrorIgnore
- }
-
- function signalCursorActivity(cm) {
- var arr = cm._handlers && cm._handlers.cursorActivity;
- if (!arr) { return }
- var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
- for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
- { set.push(arr[i]); } }
- }
-
- function hasHandler(emitter, type) {
- return getHandlers(emitter, type).length > 0
- }
-
- // Add on and off methods to a constructor's prototype, to make
- // registering events on such objects more convenient.
- function eventMixin(ctor) {
- ctor.prototype.on = function(type, f) {on(this, type, f);};
- ctor.prototype.off = function(type, f) {off(this, type, f);};
- }
-
- // Due to the fact that we still support jurassic IE versions, some
- // compatibility wrappers are needed.
-
- function e_preventDefault(e) {
- if (e.preventDefault) { e.preventDefault(); }
- else { e.returnValue = false; }
- }
- function e_stopPropagation(e) {
- if (e.stopPropagation) { e.stopPropagation(); }
- else { e.cancelBubble = true; }
- }
- function e_defaultPrevented(e) {
- return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
- }
- function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
-
- function e_target(e) {return e.target || e.srcElement}
- function e_button(e) {
- var b = e.which;
- if (b == null) {
- if (e.button & 1) { b = 1; }
- else if (e.button & 2) { b = 3; }
- else if (e.button & 4) { b = 2; }
- }
- if (mac && e.ctrlKey && b == 1) { b = 3; }
- return b
- }
-
- // Detect drag-and-drop
- var dragAndDrop = function() {
- // There is *some* kind of drag-and-drop support in IE6-8, but I
- // couldn't get it to work yet.
- if (ie && ie_version < 9) { return false }
- var div = elt('div');
- return "draggable" in div || "dragDrop" in div
- }();
-
- var zwspSupported;
- function zeroWidthElement(measure) {
- if (zwspSupported == null) {
- var test = elt("span", "\u200b");
- removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
- if (measure.firstChild.offsetHeight != 0)
- { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
- }
- var node = zwspSupported ? elt("span", "\u200b") :
- elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
- node.setAttribute("cm-text", "");
- return node
- }
-
- // Feature-detect IE's crummy client rect reporting for bidi text
- var badBidiRects;
- function hasBadBidiRects(measure) {
- if (badBidiRects != null) { return badBidiRects }
- var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
- var r0 = range(txt, 0, 1).getBoundingClientRect();
- var r1 = range(txt, 1, 2).getBoundingClientRect();
- removeChildren(measure);
- if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
- return badBidiRects = (r1.right - r0.right < 3)
- }
-
- // See if "".split is the broken IE version, if so, provide an
- // alternative way to split lines.
- var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
- var pos = 0, result = [], l = string.length;
- while (pos <= l) {
- var nl = string.indexOf("\n", pos);
- if (nl == -1) { nl = string.length; }
- var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
- var rt = line.indexOf("\r");
- if (rt != -1) {
- result.push(line.slice(0, rt));
- pos += rt + 1;
- } else {
- result.push(line);
- pos = nl + 1;
- }
- }
- return result
- } : function (string) { return string.split(/\r\n?|\n/); };
-
- var hasSelection = window.getSelection ? function (te) {
- try { return te.selectionStart != te.selectionEnd }
- catch(e) { return false }
- } : function (te) {
- var range;
- try {range = te.ownerDocument.selection.createRange();}
- catch(e) {}
- if (!range || range.parentElement() != te) { return false }
- return range.compareEndPoints("StartToEnd", range) != 0
- };
-
- var hasCopyEvent = (function () {
- var e = elt("div");
- if ("oncopy" in e) { return true }
- e.setAttribute("oncopy", "return;");
- return typeof e.oncopy == "function"
- })();
-
- var badZoomedRects = null;
- function hasBadZoomedRects(measure) {
- if (badZoomedRects != null) { return badZoomedRects }
- var node = removeChildrenAndAdd(measure, elt("span", "x"));
- var normal = node.getBoundingClientRect();
- var fromRange = range(node, 0, 1).getBoundingClientRect();
- return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
- }
-
- // Known modes, by name and by MIME
- var modes = {}, mimeModes = {};
-
- // Extra arguments are stored as the mode's dependencies, which is
- // used by (legacy) mechanisms like loadmode.js to automatically
- // load a mode. (Preferred mechanism is the require/define calls.)
- function defineMode(name, mode) {
- if (arguments.length > 2)
- { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
- modes[name] = mode;
- }
-
- function defineMIME(mime, spec) {
- mimeModes[mime] = spec;
- }
-
- // Given a MIME type, a {name, ...options} config object, or a name
- // string, return a mode config object.
- function resolveMode(spec) {
- if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
- spec = mimeModes[spec];
- } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
- var found = mimeModes[spec.name];
- if (typeof found == "string") { found = {name: found}; }
- spec = createObj(found, spec);
- spec.name = found.name;
- } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
- return resolveMode("application/xml")
- } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
- return resolveMode("application/json")
- }
- if (typeof spec == "string") { return {name: spec} }
- else { return spec || {name: "null"} }
- }
-
- // Given a mode spec (anything that resolveMode accepts), find and
- // initialize an actual mode object.
- function getMode(options, spec) {
- spec = resolveMode(spec);
- var mfactory = modes[spec.name];
- if (!mfactory) { return getMode(options, "text/plain") }
- var modeObj = mfactory(options, spec);
- if (modeExtensions.hasOwnProperty(spec.name)) {
- var exts = modeExtensions[spec.name];
- for (var prop in exts) {
- if (!exts.hasOwnProperty(prop)) { continue }
- if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
- modeObj[prop] = exts[prop];
- }
- }
- modeObj.name = spec.name;
- if (spec.helperType) { modeObj.helperType = spec.helperType; }
- if (spec.modeProps) { for (var prop$1 in spec.modeProps)
- { modeObj[prop$1] = spec.modeProps[prop$1]; } }
-
- return modeObj
- }
-
- // This can be used to attach properties to mode objects from
- // outside the actual mode definition.
- var modeExtensions = {};
- function extendMode(mode, properties) {
- var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
- copyObj(properties, exts);
- }
-
- function copyState(mode, state) {
- if (state === true) { return state }
- if (mode.copyState) { return mode.copyState(state) }
- var nstate = {};
- for (var n in state) {
- var val = state[n];
- if (val instanceof Array) { val = val.concat([]); }
- nstate[n] = val;
- }
- return nstate
- }
-
- // Given a mode and a state (for that mode), find the inner mode and
- // state at the position that the state refers to.
- function innerMode(mode, state) {
- var info;
- while (mode.innerMode) {
- info = mode.innerMode(state);
- if (!info || info.mode == mode) { break }
- state = info.state;
- mode = info.mode;
- }
- return info || {mode: mode, state: state}
- }
-
- function startState(mode, a1, a2) {
- return mode.startState ? mode.startState(a1, a2) : true
- }
-
- // STRING STREAM
-
- // Fed to the mode parsers, provides helper functions to make
- // parsers more succinct.
-
- var StringStream = function(string, tabSize, lineOracle) {
- this.pos = this.start = 0;
- this.string = string;
- this.tabSize = tabSize || 8;
- this.lastColumnPos = this.lastColumnValue = 0;
- this.lineStart = 0;
- this.lineOracle = lineOracle;
- };
-
- StringStream.prototype.eol = function () {return this.pos >= this.string.length};
- StringStream.prototype.sol = function () {return this.pos == this.lineStart};
- StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
- StringStream.prototype.next = function () {
- if (this.pos < this.string.length)
- { return this.string.charAt(this.pos++) }
- };
- StringStream.prototype.eat = function (match) {
- var ch = this.string.charAt(this.pos);
- var ok;
- if (typeof match == "string") { ok = ch == match; }
- else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
- if (ok) {++this.pos; return ch}
- };
- StringStream.prototype.eatWhile = function (match) {
- var start = this.pos;
- while (this.eat(match)){}
- return this.pos > start
- };
- StringStream.prototype.eatSpace = function () {
- var start = this.pos;
- while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
- return this.pos > start
- };
- StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
- StringStream.prototype.skipTo = function (ch) {
- var found = this.string.indexOf(ch, this.pos);
- if (found > -1) {this.pos = found; return true}
- };
- StringStream.prototype.backUp = function (n) {this.pos -= n;};
- StringStream.prototype.column = function () {
- if (this.lastColumnPos < this.start) {
- this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
- this.lastColumnPos = this.start;
- }
- return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
- };
- StringStream.prototype.indentation = function () {
- return countColumn(this.string, null, this.tabSize) -
- (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
- };
- StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
- if (typeof pattern == "string") {
- var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
- var substr = this.string.substr(this.pos, pattern.length);
- if (cased(substr) == cased(pattern)) {
- if (consume !== false) { this.pos += pattern.length; }
- return true
- }
- } else {
- var match = this.string.slice(this.pos).match(pattern);
- if (match && match.index > 0) { return null }
- if (match && consume !== false) { this.pos += match[0].length; }
- return match
- }
- };
- StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
- StringStream.prototype.hideFirstChars = function (n, inner) {
- this.lineStart += n;
- try { return inner() }
- finally { this.lineStart -= n; }
- };
- StringStream.prototype.lookAhead = function (n) {
- var oracle = this.lineOracle;
- return oracle && oracle.lookAhead(n)
- };
- StringStream.prototype.baseToken = function () {
- var oracle = this.lineOracle;
- return oracle && oracle.baseToken(this.pos)
- };
-
- // Find the line object corresponding to the given line number.
- function getLine(doc, n) {
- n -= doc.first;
- if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
- var chunk = doc;
- while (!chunk.lines) {
- for (var i = 0;; ++i) {
- var child = chunk.children[i], sz = child.chunkSize();
- if (n < sz) { chunk = child; break }
- n -= sz;
- }
- }
- return chunk.lines[n]
- }
-
- // Get the part of a document between two positions, as an array of
- // strings.
- function getBetween(doc, start, end) {
- var out = [], n = start.line;
- doc.iter(start.line, end.line + 1, function (line) {
- var text = line.text;
- if (n == end.line) { text = text.slice(0, end.ch); }
- if (n == start.line) { text = text.slice(start.ch); }
- out.push(text);
- ++n;
- });
- return out
- }
- // Get the lines between from and to, as array of strings.
- function getLines(doc, from, to) {
- var out = [];
- doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
- return out
- }
-
- // Update the height of a line, propagating the height change
- // upwards to parent nodes.
- function updateLineHeight(line, height) {
- var diff = height - line.height;
- if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
- }
-
- // Given a line object, find its line number by walking up through
- // its parent links.
- function lineNo(line) {
- if (line.parent == null) { return null }
- var cur = line.parent, no = indexOf(cur.lines, line);
- for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
- for (var i = 0;; ++i) {
- if (chunk.children[i] == cur) { break }
- no += chunk.children[i].chunkSize();
- }
- }
- return no + cur.first
- }
-
- // Find the line at the given vertical position, using the height
- // information in the document tree.
- function lineAtHeight(chunk, h) {
- var n = chunk.first;
- outer: do {
- for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
- var child = chunk.children[i$1], ch = child.height;
- if (h < ch) { chunk = child; continue outer }
- h -= ch;
- n += child.chunkSize();
- }
- return n
- } while (!chunk.lines)
- var i = 0;
- for (; i < chunk.lines.length; ++i) {
- var line = chunk.lines[i], lh = line.height;
- if (h < lh) { break }
- h -= lh;
- }
- return n + i
- }
-
- function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
-
- function lineNumberFor(options, i) {
- return String(options.lineNumberFormatter(i + options.firstLineNumber))
- }
-
- // A Pos instance represents a position within the text.
- function Pos(line, ch, sticky) {
- if ( sticky === void 0 ) sticky = null;
-
- if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
- this.line = line;
- this.ch = ch;
- this.sticky = sticky;
- }
-
- // Compare two positions, return 0 if they are the same, a negative
- // number when a is less, and a positive number otherwise.
- function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
-
- function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
-
- function copyPos(x) {return Pos(x.line, x.ch)}
- function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
- function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
-
- // Most of the external API clips given positions to make sure they
- // actually exist within the document.
- function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
- function clipPos(doc, pos) {
- if (pos.line < doc.first) { return Pos(doc.first, 0) }
- var last = doc.first + doc.size - 1;
- if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
- return clipToLen(pos, getLine(doc, pos.line).text.length)
- }
- function clipToLen(pos, linelen) {
- var ch = pos.ch;
- if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
- else if (ch < 0) { return Pos(pos.line, 0) }
- else { return pos }
- }
- function clipPosArray(doc, array) {
- var out = [];
- for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
- return out
- }
-
- var SavedContext = function(state, lookAhead) {
- this.state = state;
- this.lookAhead = lookAhead;
- };
-
- var Context = function(doc, state, line, lookAhead) {
- this.state = state;
- this.doc = doc;
- this.line = line;
- this.maxLookAhead = lookAhead || 0;
- this.baseTokens = null;
- this.baseTokenPos = 1;
- };
-
- Context.prototype.lookAhead = function (n) {
- var line = this.doc.getLine(this.line + n);
- if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
- return line
- };
-
- Context.prototype.baseToken = function (n) {
- if (!this.baseTokens) { return null }
- while (this.baseTokens[this.baseTokenPos] <= n)
- { this.baseTokenPos += 2; }
- var type = this.baseTokens[this.baseTokenPos + 1];
- return {type: type && type.replace(/( |^)overlay .*/, ""),
- size: this.baseTokens[this.baseTokenPos] - n}
- };
-
- Context.prototype.nextLine = function () {
- this.line++;
- if (this.maxLookAhead > 0) { this.maxLookAhead--; }
- };
-
- Context.fromSaved = function (doc, saved, line) {
- if (saved instanceof SavedContext)
- { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
- else
- { return new Context(doc, copyState(doc.mode, saved), line) }
- };
-
- Context.prototype.save = function (copy) {
- var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
- return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
- };
-
-
- // Compute a style array (an array starting with a mode generation
- // -- for invalidation -- followed by pairs of end positions and
- // style strings), which is used to highlight the tokens on the
- // line.
- function highlightLine(cm, line, context, forceToEnd) {
- // A styles array always starts with a number identifying the
- // mode/overlays that it is based on (for easy invalidation).
- var st = [cm.state.modeGen], lineClasses = {};
- // Compute the base array of styles
- runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
- lineClasses, forceToEnd);
- var state = context.state;
-
- // Run overlays, adjust style array.
- var loop = function ( o ) {
- context.baseTokens = st;
- var overlay = cm.state.overlays[o], i = 1, at = 0;
- context.state = true;
- runMode(cm, line.text, overlay.mode, context, function (end, style) {
- var start = i;
- // Ensure there's a token end at the current position, and that i points at it
- while (at < end) {
- var i_end = st[i];
- if (i_end > end)
- { st.splice(i, 1, end, st[i+1], i_end); }
- i += 2;
- at = Math.min(end, i_end);
- }
- if (!style) { return }
- if (overlay.opaque) {
- st.splice(start, i - start, end, "overlay " + style);
- i = start + 2;
- } else {
- for (; start < i; start += 2) {
- var cur = st[start+1];
- st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
- }
- }
- }, lineClasses);
- context.state = state;
- context.baseTokens = null;
- context.baseTokenPos = 1;
- };
-
- for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
-
- return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
- }
-
- function getLineStyles(cm, line, updateFrontier) {
- if (!line.styles || line.styles[0] != cm.state.modeGen) {
- var context = getContextBefore(cm, lineNo(line));
- var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
- var result = highlightLine(cm, line, context);
- if (resetState) { context.state = resetState; }
- line.stateAfter = context.save(!resetState);
- line.styles = result.styles;
- if (result.classes) { line.styleClasses = result.classes; }
- else if (line.styleClasses) { line.styleClasses = null; }
- if (updateFrontier === cm.doc.highlightFrontier)
- { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
- }
- return line.styles
- }
-
- function getContextBefore(cm, n, precise) {
- var doc = cm.doc, display = cm.display;
- if (!doc.mode.startState) { return new Context(doc, true, n) }
- var start = findStartLine(cm, n, precise);
- var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
- var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);
-
- doc.iter(start, n, function (line) {
- processLine(cm, line.text, context);
- var pos = context.line;
- line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
- context.nextLine();
- });
- if (precise) { doc.modeFrontier = context.line; }
- return context
- }
-
- // Lightweight form of highlight -- proceed over this line and
- // update state, but don't save a style array. Used for lines that
- // aren't currently visible.
- function processLine(cm, text, context, startAt) {
- var mode = cm.doc.mode;
- var stream = new StringStream(text, cm.options.tabSize, context);
- stream.start = stream.pos = startAt || 0;
- if (text == "") { callBlankLine(mode, context.state); }
- while (!stream.eol()) {
- readToken(mode, stream, context.state);
- stream.start = stream.pos;
- }
- }
-
- function callBlankLine(mode, state) {
- if (mode.blankLine) { return mode.blankLine(state) }
- if (!mode.innerMode) { return }
- var inner = innerMode(mode, state);
- if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
- }
-
- function readToken(mode, stream, state, inner) {
- for (var i = 0; i < 10; i++) {
- if (inner) { inner[0] = innerMode(mode, state).mode; }
- var style = mode.token(stream, state);
- if (stream.pos > stream.start) { return style }
- }
- throw new Error("Mode " + mode.name + " failed to advance stream.")
- }
-
- var Token = function(stream, type, state) {
- this.start = stream.start; this.end = stream.pos;
- this.string = stream.current();
- this.type = type || null;
- this.state = state;
- };
-
- // Utility for getTokenAt and getLineTokens
- function takeToken(cm, pos, precise, asArray) {
- var doc = cm.doc, mode = doc.mode, style;
- pos = clipPos(doc, pos);
- var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
- var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
- if (asArray) { tokens = []; }
- while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
- stream.start = stream.pos;
- style = readToken(mode, stream, context.state);
- if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
- }
- return asArray ? tokens : new Token(stream, style, context.state)
- }
-
- function extractLineClasses(type, output) {
- if (type) { for (;;) {
- var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
- if (!lineClass) { break }
- type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
- var prop = lineClass[1] ? "bgClass" : "textClass";
- if (output[prop] == null)
- { output[prop] = lineClass[2]; }
- else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
- { output[prop] += " " + lineClass[2]; }
- } }
- return type
- }
-
- // Run the given mode's parser over a line, calling f for each token.
- function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
- var flattenSpans = mode.flattenSpans;
- if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
- var curStart = 0, curStyle = null;
- var stream = new StringStream(text, cm.options.tabSize, context), style;
- var inner = cm.options.addModeClass && [null];
- if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
- while (!stream.eol()) {
- if (stream.pos > cm.options.maxHighlightLength) {
- flattenSpans = false;
- if (forceToEnd) { processLine(cm, text, context, stream.pos); }
- stream.pos = text.length;
- style = null;
- } else {
- style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
- }
- if (inner) {
- var mName = inner[0].name;
- if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
- }
- if (!flattenSpans || curStyle != style) {
- while (curStart < stream.start) {
- curStart = Math.min(stream.start, curStart + 5000);
- f(curStart, curStyle);
- }
- curStyle = style;
- }
- stream.start = stream.pos;
- }
- while (curStart < stream.pos) {
- // Webkit seems to refuse to render text nodes longer than 57444
- // characters, and returns inaccurate measurements in nodes
- // starting around 5000 chars.
- var pos = Math.min(stream.pos, curStart + 5000);
- f(pos, curStyle);
- curStart = pos;
- }
- }
-
- // Finds the line to start with when starting a parse. Tries to
- // find a line with a stateAfter, so that it can start with a
- // valid state. If that fails, it returns the line with the
- // smallest indentation, which tends to need the least context to
- // parse correctly.
- function findStartLine(cm, n, precise) {
- var minindent, minline, doc = cm.doc;
- var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
- for (var search = n; search > lim; --search) {
- if (search <= doc.first) { return doc.first }
- var line = getLine(doc, search - 1), after = line.stateAfter;
- if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
- { return search }
- var indented = countColumn(line.text, null, cm.options.tabSize);
- if (minline == null || minindent > indented) {
- minline = search - 1;
- minindent = indented;
- }
- }
- return minline
- }
-
- function retreatFrontier(doc, n) {
- doc.modeFrontier = Math.min(doc.modeFrontier, n);
- if (doc.highlightFrontier < n - 10) { return }
- var start = doc.first;
- for (var line = n - 1; line > start; line--) {
- var saved = getLine(doc, line).stateAfter;
- // change is on 3
- // state on line 1 looked ahead 2 -- so saw 3
- // test 1 + 2 < 3 should cover this
- if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
- start = line + 1;
- break
- }
- }
- doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
- }
-
- // Optimize some code when these features are not used.
- var sawReadOnlySpans = false, sawCollapsedSpans = false;
-
- function seeReadOnlySpans() {
- sawReadOnlySpans = true;
- }
-
- function seeCollapsedSpans() {
- sawCollapsedSpans = true;
- }
-
- // TEXTMARKER SPANS
-
- function MarkedSpan(marker, from, to) {
- this.marker = marker;
- this.from = from; this.to = to;
- }
-
- // Search an array of spans for a span matching the given marker.
- function getMarkedSpanFor(spans, marker) {
- if (spans) { for (var i = 0; i < spans.length; ++i) {
- var span = spans[i];
- if (span.marker == marker) { return span }
- } }
- }
-
- // Remove a span from an array, returning undefined if no spans are
- // left (we don't store arrays for lines without spans).
- function removeMarkedSpan(spans, span) {
- var r;
- for (var i = 0; i < spans.length; ++i)
- { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
- return r
- }
-
- // Add a span to a line.
- function addMarkedSpan(line, span, op) {
- var inThisOp = op && window.WeakSet && (op.markedSpans || (op.markedSpans = new WeakSet));
- if (inThisOp && line.markedSpans && inThisOp.has(line.markedSpans)) {
- line.markedSpans.push(span);
- } else {
- line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
- if (inThisOp) { inThisOp.add(line.markedSpans); }
- }
- span.marker.attachLine(line);
- }
-
- // Used for the algorithm that adjusts markers for a change in the
- // document. These functions cut an array of spans at a given
- // character position, returning an array of remaining chunks (or
- // undefined if nothing remains).
- function markedSpansBefore(old, startCh, isInsert) {
- var nw;
- if (old) { for (var i = 0; i < old.length; ++i) {
- var span = old[i], marker = span.marker;
- var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
- if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
- var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
- ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
- }
- } }
- return nw
- }
- function markedSpansAfter(old, endCh, isInsert) {
- var nw;
- if (old) { for (var i = 0; i < old.length; ++i) {
- var span = old[i], marker = span.marker;
- var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
- if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
- var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
- ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
- span.to == null ? null : span.to - endCh));
- }
- } }
- return nw
- }
-
- // Given a change object, compute the new set of marker spans that
- // cover the line in which the change took place. Removes spans
- // entirely within the change, reconnects spans belonging to the
- // same marker that appear on both sides of the change, and cuts off
- // spans partially within the change. Returns an array of span
- // arrays with one element for each line in (after) the change.
- function stretchSpansOverChange(doc, change) {
- if (change.full) { return null }
- var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
- var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
- if (!oldFirst && !oldLast) { return null }
-
- var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
- // Get the spans that 'stick out' on both sides
- var first = markedSpansBefore(oldFirst, startCh, isInsert);
- var last = markedSpansAfter(oldLast, endCh, isInsert);
-
- // Next, merge those two ends
- var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
- if (first) {
- // Fix up .to properties of first
- for (var i = 0; i < first.length; ++i) {
- var span = first[i];
- if (span.to == null) {
- var found = getMarkedSpanFor(last, span.marker);
- if (!found) { span.to = startCh; }
- else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
- }
- }
- }
- if (last) {
- // Fix up .from in last (or move them into first in case of sameLine)
- for (var i$1 = 0; i$1 < last.length; ++i$1) {
- var span$1 = last[i$1];
- if (span$1.to != null) { span$1.to += offset; }
- if (span$1.from == null) {
- var found$1 = getMarkedSpanFor(first, span$1.marker);
- if (!found$1) {
- span$1.from = offset;
- if (sameLine) { (first || (first = [])).push(span$1); }
- }
- } else {
- span$1.from += offset;
- if (sameLine) { (first || (first = [])).push(span$1); }
- }
- }
- }
- // Make sure we didn't create any zero-length spans
- if (first) { first = clearEmptySpans(first); }
- if (last && last != first) { last = clearEmptySpans(last); }
-
- var newMarkers = [first];
- if (!sameLine) {
- // Fill gap with whole-line-spans
- var gap = change.text.length - 2, gapMarkers;
- if (gap > 0 && first)
- { for (var i$2 = 0; i$2 < first.length; ++i$2)
- { if (first[i$2].to == null)
- { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
- for (var i$3 = 0; i$3 < gap; ++i$3)
- { newMarkers.push(gapMarkers); }
- newMarkers.push(last);
- }
- return newMarkers
- }
-
- // Remove spans that are empty and don't have a clearWhenEmpty
- // option of false.
- function clearEmptySpans(spans) {
- for (var i = 0; i < spans.length; ++i) {
- var span = spans[i];
- if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
- { spans.splice(i--, 1); }
- }
- if (!spans.length) { return null }
- return spans
- }
-
- // Used to 'clip' out readOnly ranges when making a change.
- function removeReadOnlyRanges(doc, from, to) {
- var markers = null;
- doc.iter(from.line, to.line + 1, function (line) {
- if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
- var mark = line.markedSpans[i].marker;
- if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
- { (markers || (markers = [])).push(mark); }
- } }
- });
- if (!markers) { return null }
- var parts = [{from: from, to: to}];
- for (var i = 0; i < markers.length; ++i) {
- var mk = markers[i], m = mk.find(0);
- for (var j = 0; j < parts.length; ++j) {
- var p = parts[j];
- if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
- var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
- if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
- { newParts.push({from: p.from, to: m.from}); }
- if (dto > 0 || !mk.inclusiveRight && !dto)
- { newParts.push({from: m.to, to: p.to}); }
- parts.splice.apply(parts, newParts);
- j += newParts.length - 3;
- }
- }
- return parts
- }
-
- // Connect or disconnect spans from a line.
- function detachMarkedSpans(line) {
- var spans = line.markedSpans;
- if (!spans) { return }
- for (var i = 0; i < spans.length; ++i)
- { spans[i].marker.detachLine(line); }
- line.markedSpans = null;
- }
- function attachMarkedSpans(line, spans) {
- if (!spans) { return }
- for (var i = 0; i < spans.length; ++i)
- { spans[i].marker.attachLine(line); }
- line.markedSpans = spans;
- }
-
- // Helpers used when computing which overlapping collapsed span
- // counts as the larger one.
- function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
- function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
-
- // Returns a number indicating which of two overlapping collapsed
- // spans is larger (and thus includes the other). Falls back to
- // comparing ids when the spans cover exactly the same range.
- function compareCollapsedMarkers(a, b) {
- var lenDiff = a.lines.length - b.lines.length;
- if (lenDiff != 0) { return lenDiff }
- var aPos = a.find(), bPos = b.find();
- var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
- if (fromCmp) { return -fromCmp }
- var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
- if (toCmp) { return toCmp }
- return b.id - a.id
- }
-
- // Find out whether a line ends or starts in a collapsed span. If
- // so, return the marker for that span.
- function collapsedSpanAtSide(line, start) {
- var sps = sawCollapsedSpans && line.markedSpans, found;
- if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
- sp = sps[i];
- if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
- (!found || compareCollapsedMarkers(found, sp.marker) < 0))
- { found = sp.marker; }
- } }
- return found
- }
- function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
- function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
-
- function collapsedSpanAround(line, ch) {
- var sps = sawCollapsedSpans && line.markedSpans, found;
- if (sps) { for (var i = 0; i < sps.length; ++i) {
- var sp = sps[i];
- if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
- (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
- } }
- return found
- }
-
- // Test whether there exists a collapsed span that partially
- // overlaps (covers the start or end, but not both) of a new span.
- // Such overlap is not allowed.
- function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
- var line = getLine(doc, lineNo);
- var sps = sawCollapsedSpans && line.markedSpans;
- if (sps) { for (var i = 0; i < sps.length; ++i) {
- var sp = sps[i];
- if (!sp.marker.collapsed) { continue }
- var found = sp.marker.find(0);
- var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
- var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
- if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
- if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
- fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
- { return true }
- } }
- }
-
- // A visual line is a line as drawn on the screen. Folding, for
- // example, can cause multiple logical lines to appear on the same
- // visual line. This finds the start of the visual line that the
- // given line is part of (usually that is the line itself).
- function visualLine(line) {
- var merged;
- while (merged = collapsedSpanAtStart(line))
- { line = merged.find(-1, true).line; }
- return line
- }
-
- function visualLineEnd(line) {
- var merged;
- while (merged = collapsedSpanAtEnd(line))
- { line = merged.find(1, true).line; }
- return line
- }
-
- // Returns an array of logical lines that continue the visual line
- // started by the argument, or undefined if there are no such lines.
- function visualLineContinued(line) {
- var merged, lines;
- while (merged = collapsedSpanAtEnd(line)) {
- line = merged.find(1, true).line
- ;(lines || (lines = [])).push(line);
- }
- return lines
- }
-
- // Get the line number of the start of the visual line that the
- // given line number is part of.
- function visualLineNo(doc, lineN) {
- var line = getLine(doc, lineN), vis = visualLine(line);
- if (line == vis) { return lineN }
- return lineNo(vis)
- }
-
- // Get the line number of the start of the next visual line after
- // the given line.
- function visualLineEndNo(doc, lineN) {
- if (lineN > doc.lastLine()) { return lineN }
- var line = getLine(doc, lineN), merged;
- if (!lineIsHidden(doc, line)) { return lineN }
- while (merged = collapsedSpanAtEnd(line))
- { line = merged.find(1, true).line; }
- return lineNo(line) + 1
- }
-
- // Compute whether a line is hidden. Lines count as hidden when they
- // are part of a visual line that starts with another line, or when
- // they are entirely covered by collapsed, non-widget span.
- function lineIsHidden(doc, line) {
- var sps = sawCollapsedSpans && line.markedSpans;
- if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
- sp = sps[i];
- if (!sp.marker.collapsed) { continue }
- if (sp.from == null) { return true }
- if (sp.marker.widgetNode) { continue }
- if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
- { return true }
- } }
- }
- function lineIsHiddenInner(doc, line, span) {
- if (span.to == null) {
- var end = span.marker.find(1, true);
- return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
- }
- if (span.marker.inclusiveRight && span.to == line.text.length)
- { return true }
- for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
- sp = line.markedSpans[i];
- if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
- (sp.to == null || sp.to != span.from) &&
- (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
- lineIsHiddenInner(doc, line, sp)) { return true }
- }
- }
-
- // Find the height above the given line.
- function heightAtLine(lineObj) {
- lineObj = visualLine(lineObj);
-
- var h = 0, chunk = lineObj.parent;
- for (var i = 0; i < chunk.lines.length; ++i) {
- var line = chunk.lines[i];
- if (line == lineObj) { break }
- else { h += line.height; }
- }
- for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
- for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
- var cur = p.children[i$1];
- if (cur == chunk) { break }
- else { h += cur.height; }
- }
- }
- return h
- }
-
- // Compute the character length of a line, taking into account
- // collapsed ranges (see markText) that might hide parts, and join
- // other lines onto it.
- function lineLength(line) {
- if (line.height == 0) { return 0 }
- var len = line.text.length, merged, cur = line;
- while (merged = collapsedSpanAtStart(cur)) {
- var found = merged.find(0, true);
- cur = found.from.line;
- len += found.from.ch - found.to.ch;
- }
- cur = line;
- while (merged = collapsedSpanAtEnd(cur)) {
- var found$1 = merged.find(0, true);
- len -= cur.text.length - found$1.from.ch;
- cur = found$1.to.line;
- len += cur.text.length - found$1.to.ch;
- }
- return len
- }
-
- // Find the longest line in the document.
- function findMaxLine(cm) {
- var d = cm.display, doc = cm.doc;
- d.maxLine = getLine(doc, doc.first);
- d.maxLineLength = lineLength(d.maxLine);
- d.maxLineChanged = true;
- doc.iter(function (line) {
- var len = lineLength(line);
- if (len > d.maxLineLength) {
- d.maxLineLength = len;
- d.maxLine = line;
- }
- });
- }
-
- // LINE DATA STRUCTURE
-
- // Line objects. These hold state related to a line, including
- // highlighting info (the styles array).
- var Line = function(text, markedSpans, estimateHeight) {
- this.text = text;
- attachMarkedSpans(this, markedSpans);
- this.height = estimateHeight ? estimateHeight(this) : 1;
- };
-
- Line.prototype.lineNo = function () { return lineNo(this) };
- eventMixin(Line);
-
- // Change the content (text, markers) of a line. Automatically
- // invalidates cached information and tries to re-estimate the
- // line's height.
- function updateLine(line, text, markedSpans, estimateHeight) {
- line.text = text;
- if (line.stateAfter) { line.stateAfter = null; }
- if (line.styles) { line.styles = null; }
- if (line.order != null) { line.order = null; }
- detachMarkedSpans(line);
- attachMarkedSpans(line, markedSpans);
- var estHeight = estimateHeight ? estimateHeight(line) : 1;
- if (estHeight != line.height) { updateLineHeight(line, estHeight); }
- }
-
- // Detach a line from the document tree and its markers.
- function cleanUpLine(line) {
- line.parent = null;
- detachMarkedSpans(line);
- }
-
- // Convert a style as returned by a mode (either null, or a string
- // containing one or more styles) to a CSS style. This is cached,
- // and also looks for line-wide styles.
- var styleToClassCache = {}, styleToClassCacheWithMode = {};
- function interpretTokenStyle(style, options) {
- if (!style || /^\s*$/.test(style)) { return null }
- var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
- return cache[style] ||
- (cache[style] = style.replace(/\S+/g, "cm-$&"))
- }
-
- // Render the DOM representation of the text of a line. Also builds
- // up a 'line map', which points at the DOM nodes that represent
- // specific stretches of text, and is used by the measuring code.
- // The returned object contains the DOM node, this map, and
- // information about line-wide styles that were set by the mode.
- function buildLineContent(cm, lineView) {
- // The padding-right forces the element to have a 'border', which
- // is needed on Webkit to be able to get line-level bounding
- // rectangles for it (in measureChar).
- var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
- var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
- col: 0, pos: 0, cm: cm,
- trailingSpace: false,
- splitSpaces: cm.getOption("lineWrapping")};
- lineView.measure = {};
-
- // Iterate over the logical lines that make up this visual line.
- for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
- var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
- builder.pos = 0;
- builder.addToken = buildToken;
- // Optionally wire in some hacks into the token-rendering
- // algorithm, to deal with browser quirks.
- if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
- { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
- builder.map = [];
- var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
- insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
- if (line.styleClasses) {
- if (line.styleClasses.bgClass)
- { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
- if (line.styleClasses.textClass)
- { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
- }
-
- // Ensure at least a single node is present, for measuring.
- if (builder.map.length == 0)
- { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }
-
- // Store the map and a cache object for the current logical line
- if (i == 0) {
- lineView.measure.map = builder.map;
- lineView.measure.cache = {};
- } else {
- (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
- ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
- }
- }
-
- // See issue #2901
- if (webkit) {
- var last = builder.content.lastChild;
- if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
- { builder.content.className = "cm-tab-wrap-hack"; }
- }
-
- signal(cm, "renderLine", cm, lineView.line, builder.pre);
- if (builder.pre.className)
- { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }
-
- return builder
- }
-
- function defaultSpecialCharPlaceholder(ch) {
- var token = elt("span", "\u2022", "cm-invalidchar");
- token.title = "\\u" + ch.charCodeAt(0).toString(16);
- token.setAttribute("aria-label", token.title);
- return token
- }
-
- // Build up the DOM representation for a single token, and add it to
- // the line map. Takes care to render special characters separately.
- function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
- if (!text) { return }
- var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
- var special = builder.cm.state.specialChars, mustWrap = false;
- var content;
- if (!special.test(text)) {
- builder.col += text.length;
- content = document.createTextNode(displayText);
- builder.map.push(builder.pos, builder.pos + text.length, content);
- if (ie && ie_version < 9) { mustWrap = true; }
- builder.pos += text.length;
- } else {
- content = document.createDocumentFragment();
- var pos = 0;
- while (true) {
- special.lastIndex = pos;
- var m = special.exec(text);
- var skipped = m ? m.index - pos : text.length - pos;
- if (skipped) {
- var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
- if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
- else { content.appendChild(txt); }
- builder.map.push(builder.pos, builder.pos + skipped, txt);
- builder.col += skipped;
- builder.pos += skipped;
- }
- if (!m) { break }
- pos += skipped + 1;
- var txt$1 = (void 0);
- if (m[0] == "\t") {
- var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
- txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
- txt$1.setAttribute("role", "presentation");
- txt$1.setAttribute("cm-text", "\t");
- builder.col += tabWidth;
- } else if (m[0] == "\r" || m[0] == "\n") {
- txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
- txt$1.setAttribute("cm-text", m[0]);
- builder.col += 1;
- } else {
- txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
- txt$1.setAttribute("cm-text", m[0]);
- if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
- else { content.appendChild(txt$1); }
- builder.col += 1;
- }
- builder.map.push(builder.pos, builder.pos + 1, txt$1);
- builder.pos++;
- }
- }
- builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
- if (style || startStyle || endStyle || mustWrap || css || attributes) {
- var fullStyle = style || "";
- if (startStyle) { fullStyle += startStyle; }
- if (endStyle) { fullStyle += endStyle; }
- var token = elt("span", [content], fullStyle, css);
- if (attributes) {
- for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
- { token.setAttribute(attr, attributes[attr]); } }
- }
- return builder.content.appendChild(token)
- }
- builder.content.appendChild(content);
- }
-
- // Change some spaces to NBSP to prevent the browser from collapsing
- // trailing spaces at the end of a line when rendering text (issue #1362).
- function splitSpaces(text, trailingBefore) {
- if (text.length > 1 && !/ /.test(text)) { return text }
- var spaceBefore = trailingBefore, result = "";
- for (var i = 0; i < text.length; i++) {
- var ch = text.charAt(i);
- if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
- { ch = "\u00a0"; }
- result += ch;
- spaceBefore = ch == " ";
- }
- return result
- }
-
- // Work around nonsense dimensions being reported for stretches of
- // right-to-left text.
- function buildTokenBadBidi(inner, order) {
- return function (builder, text, style, startStyle, endStyle, css, attributes) {
- style = style ? style + " cm-force-border" : "cm-force-border";
- var start = builder.pos, end = start + text.length;
- for (;;) {
- // Find the part that overlaps with the start of this text
- var part = (void 0);
- for (var i = 0; i < order.length; i++) {
- part = order[i];
- if (part.to > start && part.from <= start) { break }
- }
- if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
- inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
- startStyle = null;
- text = text.slice(part.to - start);
- start = part.to;
- }
- }
- }
-
- function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
- var widget = !ignoreWidget && marker.widgetNode;
- if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
- if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
- if (!widget)
- { widget = builder.content.appendChild(document.createElement("span")); }
- widget.setAttribute("cm-marker", marker.id);
- }
- if (widget) {
- builder.cm.display.input.setUneditable(widget);
- builder.content.appendChild(widget);
- }
- builder.pos += size;
- builder.trailingSpace = false;
- }
-
- // Outputs a number of spans to make up a line, taking highlighting
- // and marked text into account.
- function insertLineContent(line, builder, styles) {
- var spans = line.markedSpans, allText = line.text, at = 0;
- if (!spans) {
- for (var i$1 = 1; i$1 < styles.length; i$1+=2)
- { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
- return
- }
-
- var len = allText.length, pos = 0, i = 1, text = "", style, css;
- var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
- for (;;) {
- if (nextChange == pos) { // Update current marker set
- spanStyle = spanEndStyle = spanStartStyle = css = "";
- attributes = null;
- collapsed = null; nextChange = Infinity;
- var foundBookmarks = [], endStyles = (void 0);
- for (var j = 0; j < spans.length; ++j) {
- var sp = spans[j], m = sp.marker;
- if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
- foundBookmarks.push(m);
- } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
- if (sp.to != null && sp.to != pos && nextChange > sp.to) {
- nextChange = sp.to;
- spanEndStyle = "";
- }
- if (m.className) { spanStyle += " " + m.className; }
- if (m.css) { css = (css ? css + ";" : "") + m.css; }
- if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
- if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
- // support for the old title property
- // https://github.com/codemirror/CodeMirror/pull/5673
- if (m.title) { (attributes || (attributes = {})).title = m.title; }
- if (m.attributes) {
- for (var attr in m.attributes)
- { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
- }
- if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
- { collapsed = sp; }
- } else if (sp.from > pos && nextChange > sp.from) {
- nextChange = sp.from;
- }
- }
- if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
- { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }
-
- if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
- { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
- if (collapsed && (collapsed.from || 0) == pos) {
- buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
- collapsed.marker, collapsed.from == null);
- if (collapsed.to == null) { return }
- if (collapsed.to == pos) { collapsed = false; }
- }
- }
- if (pos >= len) { break }
-
- var upto = Math.min(len, nextChange);
- while (true) {
- if (text) {
- var end = pos + text.length;
- if (!collapsed) {
- var tokenText = end > upto ? text.slice(0, upto - pos) : text;
- builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
- spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
- }
- if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
- pos = end;
- spanStartStyle = "";
- }
- text = allText.slice(at, at = styles[i++]);
- style = interpretTokenStyle(styles[i++], builder.cm.options);
- }
- }
- }
-
-
- // These objects are used to represent the visible (currently drawn)
- // part of the document. A LineView may correspond to multiple
- // logical lines, if those are connected by collapsed ranges.
- function LineView(doc, line, lineN) {
- // The starting line
- this.line = line;
- // Continuing lines, if any
- this.rest = visualLineContinued(line);
- // Number of logical lines in this visual line
- this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
- this.node = this.text = null;
- this.hidden = lineIsHidden(doc, line);
- }
-
- // Create a range of LineView objects for the given lines.
- function buildViewArray(cm, from, to) {
- var array = [], nextPos;
- for (var pos = from; pos < to; pos = nextPos) {
- var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
- nextPos = pos + view.size;
- array.push(view);
- }
- return array
- }
-
- var operationGroup = null;
-
- function pushOperation(op) {
- if (operationGroup) {
- operationGroup.ops.push(op);
- } else {
- op.ownsGroup = operationGroup = {
- ops: [op],
- delayedCallbacks: []
- };
- }
- }
-
- function fireCallbacksForOps(group) {
- // Calls delayed callbacks and cursorActivity handlers until no
- // new ones appear
- var callbacks = group.delayedCallbacks, i = 0;
- do {
- for (; i < callbacks.length; i++)
- { callbacks[i].call(null); }
- for (var j = 0; j < group.ops.length; j++) {
- var op = group.ops[j];
- if (op.cursorActivityHandlers)
- { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
- { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
- }
- } while (i < callbacks.length)
- }
-
- function finishOperation(op, endCb) {
- var group = op.ownsGroup;
- if (!group) { return }
-
- try { fireCallbacksForOps(group); }
- finally {
- operationGroup = null;
- endCb(group);
- }
- }
-
- var orphanDelayedCallbacks = null;
-
- // Often, we want to signal events at a point where we are in the
- // middle of some work, but don't want the handler to start calling
- // other methods on the editor, which might be in an inconsistent
- // state or simply not expect any other events to happen.
- // signalLater looks whether there are any handlers, and schedules
- // them to be executed when the last operation ends, or, if no
- // operation is active, when a timeout fires.
- function signalLater(emitter, type /*, values...*/) {
- var arr = getHandlers(emitter, type);
- if (!arr.length) { return }
- var args = Array.prototype.slice.call(arguments, 2), list;
- if (operationGroup) {
- list = operationGroup.delayedCallbacks;
- } else if (orphanDelayedCallbacks) {
- list = orphanDelayedCallbacks;
- } else {
- list = orphanDelayedCallbacks = [];
- setTimeout(fireOrphanDelayed, 0);
- }
- var loop = function ( i ) {
- list.push(function () { return arr[i].apply(null, args); });
- };
-
- for (var i = 0; i < arr.length; ++i)
- loop( i );
- }
-
- function fireOrphanDelayed() {
- var delayed = orphanDelayedCallbacks;
- orphanDelayedCallbacks = null;
- for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
- }
-
- // When an aspect of a line changes, a string is added to
- // lineView.changes. This updates the relevant part of the line's
- // DOM structure.
- function updateLineForChanges(cm, lineView, lineN, dims) {
- for (var j = 0; j < lineView.changes.length; j++) {
- var type = lineView.changes[j];
- if (type == "text") { updateLineText(cm, lineView); }
- else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
- else if (type == "class") { updateLineClasses(cm, lineView); }
- else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
- }
- lineView.changes = null;
- }
-
- // Lines with gutter elements, widgets or a background class need to
- // be wrapped, and have the extra elements added to the wrapper div
- function ensureLineWrapped(lineView) {
- if (lineView.node == lineView.text) {
- lineView.node = elt("div", null, null, "position: relative");
- if (lineView.text.parentNode)
- { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
- lineView.node.appendChild(lineView.text);
- if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
- }
- return lineView.node
- }
-
- function updateLineBackground(cm, lineView) {
- var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
- if (cls) { cls += " CodeMirror-linebackground"; }
- if (lineView.background) {
- if (cls) { lineView.background.className = cls; }
- else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
- } else if (cls) {
- var wrap = ensureLineWrapped(lineView);
- lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
- cm.display.input.setUneditable(lineView.background);
- }
- }
-
- // Wrapper around buildLineContent which will reuse the structure
- // in display.externalMeasured when possible.
- function getLineContent(cm, lineView) {
- var ext = cm.display.externalMeasured;
- if (ext && ext.line == lineView.line) {
- cm.display.externalMeasured = null;
- lineView.measure = ext.measure;
- return ext.built
- }
- return buildLineContent(cm, lineView)
- }
-
- // Redraw the line's text. Interacts with the background and text
- // classes because the mode may output tokens that influence these
- // classes.
- function updateLineText(cm, lineView) {
- var cls = lineView.text.className;
- var built = getLineContent(cm, lineView);
- if (lineView.text == lineView.node) { lineView.node = built.pre; }
- lineView.text.parentNode.replaceChild(built.pre, lineView.text);
- lineView.text = built.pre;
- if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
- lineView.bgClass = built.bgClass;
- lineView.textClass = built.textClass;
- updateLineClasses(cm, lineView);
- } else if (cls) {
- lineView.text.className = cls;
- }
- }
-
- function updateLineClasses(cm, lineView) {
- updateLineBackground(cm, lineView);
- if (lineView.line.wrapClass)
- { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
- else if (lineView.node != lineView.text)
- { lineView.node.className = ""; }
- var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
- lineView.text.className = textClass || "";
- }
-
- function updateLineGutter(cm, lineView, lineN, dims) {
- if (lineView.gutter) {
- lineView.node.removeChild(lineView.gutter);
- lineView.gutter = null;
- }
- if (lineView.gutterBackground) {
- lineView.node.removeChild(lineView.gutterBackground);
- lineView.gutterBackground = null;
- }
- if (lineView.line.gutterClass) {
- var wrap = ensureLineWrapped(lineView);
- lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
- ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
- cm.display.input.setUneditable(lineView.gutterBackground);
- wrap.insertBefore(lineView.gutterBackground, lineView.text);
- }
- var markers = lineView.line.gutterMarkers;
- if (cm.options.lineNumbers || markers) {
- var wrap$1 = ensureLineWrapped(lineView);
- var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
- gutterWrap.setAttribute("aria-hidden", "true");
- cm.display.input.setUneditable(gutterWrap);
- wrap$1.insertBefore(gutterWrap, lineView.text);
- if (lineView.line.gutterClass)
- { gutterWrap.className += " " + lineView.line.gutterClass; }
- if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
- { lineView.lineNumber = gutterWrap.appendChild(
- elt("div", lineNumberFor(cm.options, lineN),
- "CodeMirror-linenumber CodeMirror-gutter-elt",
- ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
- if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
- var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
- if (found)
- { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
- ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
- } }
- }
- }
-
- function updateLineWidgets(cm, lineView, dims) {
- if (lineView.alignable) { lineView.alignable = null; }
- var isWidget = classTest("CodeMirror-linewidget");
- for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
- next = node.nextSibling;
- if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
- }
- insertLineWidgets(cm, lineView, dims);
- }
-
- // Build a line's DOM representation from scratch
- function buildLineElement(cm, lineView, lineN, dims) {
- var built = getLineContent(cm, lineView);
- lineView.text = lineView.node = built.pre;
- if (built.bgClass) { lineView.bgClass = built.bgClass; }
- if (built.textClass) { lineView.textClass = built.textClass; }
-
- updateLineClasses(cm, lineView);
- updateLineGutter(cm, lineView, lineN, dims);
- insertLineWidgets(cm, lineView, dims);
- return lineView.node
- }
-
- // A lineView may contain multiple logical lines (when merged by
- // collapsed spans). The widgets for all of them need to be drawn.
- function insertLineWidgets(cm, lineView, dims) {
- insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
- if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
- { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
- }
-
- function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
- if (!line.widgets) { return }
- var wrap = ensureLineWrapped(lineView);
- for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
- var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
- if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
- positionLineWidget(widget, node, lineView, dims);
- cm.display.input.setUneditable(node);
- if (allowAbove && widget.above)
- { wrap.insertBefore(node, lineView.gutter || lineView.text); }
- else
- { wrap.appendChild(node); }
- signalLater(widget, "redraw");
- }
- }
-
- function positionLineWidget(widget, node, lineView, dims) {
- if (widget.noHScroll) {
- (lineView.alignable || (lineView.alignable = [])).push(node);
- var width = dims.wrapperWidth;
- node.style.left = dims.fixedPos + "px";
- if (!widget.coverGutter) {
- width -= dims.gutterTotalWidth;
- node.style.paddingLeft = dims.gutterTotalWidth + "px";
- }
- node.style.width = width + "px";
- }
- if (widget.coverGutter) {
- node.style.zIndex = 5;
- node.style.position = "relative";
- if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
- }
- }
-
- function widgetHeight(widget) {
- if (widget.height != null) { return widget.height }
- var cm = widget.doc.cm;
- if (!cm) { return 0 }
- if (!contains(document.body, widget.node)) {
- var parentStyle = "position: relative;";
- if (widget.coverGutter)
- { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
- if (widget.noHScroll)
- { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
- removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
- }
- return widget.height = widget.node.parentNode.offsetHeight
- }
-
- // Return true when the given mouse event happened in a widget
- function eventInWidget(display, e) {
- for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
- if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
- (n.parentNode == display.sizer && n != display.mover))
- { return true }
- }
- }
-
- // POSITION MEASUREMENT
-
- function paddingTop(display) {return display.lineSpace.offsetTop}
- function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
- function paddingH(display) {
- if (display.cachedPaddingH) { return display.cachedPaddingH }
- var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"));
- var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
- var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
- if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
- return data
- }
-
- function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
- function displayWidth(cm) {
- return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
- }
- function displayHeight(cm) {
- return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
- }
-
- // Ensure the lineView.wrapping.heights array is populated. This is
- // an array of bottom offsets for the lines that make up a drawn
- // line. When lineWrapping is on, there might be more than one
- // height.
- function ensureLineHeights(cm, lineView, rect) {
- var wrapping = cm.options.lineWrapping;
- var curWidth = wrapping && displayWidth(cm);
- if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
- var heights = lineView.measure.heights = [];
- if (wrapping) {
- lineView.measure.width = curWidth;
- var rects = lineView.text.firstChild.getClientRects();
- for (var i = 0; i < rects.length - 1; i++) {
- var cur = rects[i], next = rects[i + 1];
- if (Math.abs(cur.bottom - next.bottom) > 2)
- { heights.push((cur.bottom + next.top) / 2 - rect.top); }
- }
- }
- heights.push(rect.bottom - rect.top);
- }
- }
-
- // Find a line map (mapping character offsets to text nodes) and a
- // measurement cache for the given line number. (A line view might
- // contain multiple lines when collapsed ranges are present.)
- function mapFromLineView(lineView, line, lineN) {
- if (lineView.line == line)
- { return {map: lineView.measure.map, cache: lineView.measure.cache} }
- if (lineView.rest) {
- for (var i = 0; i < lineView.rest.length; i++)
- { if (lineView.rest[i] == line)
- { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
- for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
- { if (lineNo(lineView.rest[i$1]) > lineN)
- { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
- }
- }
-
- // Render a line into the hidden node display.externalMeasured. Used
- // when measurement is needed for a line that's not in the viewport.
- function updateExternalMeasurement(cm, line) {
- line = visualLine(line);
- var lineN = lineNo(line);
- var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
- view.lineN = lineN;
- var built = view.built = buildLineContent(cm, view);
- view.text = built.pre;
- removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
- return view
- }
-
- // Get a {top, bottom, left, right} box (in line-local coordinates)
- // for a given character.
- function measureChar(cm, line, ch, bias) {
- return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
- }
-
- // Find a line view that corresponds to the given line number.
- function findViewForLine(cm, lineN) {
- if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
- { return cm.display.view[findViewIndex(cm, lineN)] }
- var ext = cm.display.externalMeasured;
- if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
- { return ext }
- }
-
- // Measurement can be split in two steps, the set-up work that
- // applies to the whole line, and the measurement of the actual
- // character. Functions like coordsChar, that need to do a lot of
- // measurements in a row, can thus ensure that the set-up work is
- // only done once.
- function prepareMeasureForLine(cm, line) {
- var lineN = lineNo(line);
- var view = findViewForLine(cm, lineN);
- if (view && !view.text) {
- view = null;
- } else if (view && view.changes) {
- updateLineForChanges(cm, view, lineN, getDimensions(cm));
- cm.curOp.forceUpdate = true;
- }
- if (!view)
- { view = updateExternalMeasurement(cm, line); }
-
- var info = mapFromLineView(view, line, lineN);
- return {
- line: line, view: view, rect: null,
- map: info.map, cache: info.cache, before: info.before,
- hasHeights: false
- }
- }
-
- // Given a prepared measurement object, measures the position of an
- // actual character (or fetches it from the cache).
- function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
- if (prepared.before) { ch = -1; }
- var key = ch + (bias || ""), found;
- if (prepared.cache.hasOwnProperty(key)) {
- found = prepared.cache[key];
- } else {
- if (!prepared.rect)
- { prepared.rect = prepared.view.text.getBoundingClientRect(); }
- if (!prepared.hasHeights) {
- ensureLineHeights(cm, prepared.view, prepared.rect);
- prepared.hasHeights = true;
- }
- found = measureCharInner(cm, prepared, ch, bias);
- if (!found.bogus) { prepared.cache[key] = found; }
- }
- return {left: found.left, right: found.right,
- top: varHeight ? found.rtop : found.top,
- bottom: varHeight ? found.rbottom : found.bottom}
- }
-
- var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
-
- function nodeAndOffsetInLineMap(map, ch, bias) {
- var node, start, end, collapse, mStart, mEnd;
- // First, search the line map for the text node corresponding to,
- // or closest to, the target character.
- for (var i = 0; i < map.length; i += 3) {
- mStart = map[i];
- mEnd = map[i + 1];
- if (ch < mStart) {
- start = 0; end = 1;
- collapse = "left";
- } else if (ch < mEnd) {
- start = ch - mStart;
- end = start + 1;
- } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
- end = mEnd - mStart;
- start = end - 1;
- if (ch >= mEnd) { collapse = "right"; }
- }
- if (start != null) {
- node = map[i + 2];
- if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
- { collapse = bias; }
- if (bias == "left" && start == 0)
- { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
- node = map[(i -= 3) + 2];
- collapse = "left";
- } }
- if (bias == "right" && start == mEnd - mStart)
- { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
- node = map[(i += 3) + 2];
- collapse = "right";
- } }
- break
- }
- }
- return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
- }
-
- function getUsefulRect(rects, bias) {
- var rect = nullRect;
- if (bias == "left") { for (var i = 0; i < rects.length; i++) {
- if ((rect = rects[i]).left != rect.right) { break }
- } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
- if ((rect = rects[i$1]).left != rect.right) { break }
- } }
- return rect
- }
-
- function measureCharInner(cm, prepared, ch, bias) {
- var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
- var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
-
- var rect;
- if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
- for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
- while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
- while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
- if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
- { rect = node.parentNode.getBoundingClientRect(); }
- else
- { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
- if (rect.left || rect.right || start == 0) { break }
- end = start;
- start = start - 1;
- collapse = "right";
- }
- if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
- } else { // If it is a widget, simply get the box for the whole widget.
- if (start > 0) { collapse = bias = "right"; }
- var rects;
- if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
- { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
- else
- { rect = node.getBoundingClientRect(); }
- }
- if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
- var rSpan = node.parentNode.getClientRects()[0];
- if (rSpan)
- { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
- else
- { rect = nullRect; }
- }
-
- var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
- var mid = (rtop + rbot) / 2;
- var heights = prepared.view.measure.heights;
- var i = 0;
- for (; i < heights.length - 1; i++)
- { if (mid < heights[i]) { break } }
- var top = i ? heights[i - 1] : 0, bot = heights[i];
- var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
- right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
- top: top, bottom: bot};
- if (!rect.left && !rect.right) { result.bogus = true; }
- if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
-
- return result
- }
-
- // Work around problem with bounding client rects on ranges being
- // returned incorrectly when zoomed on IE10 and below.
- function maybeUpdateRectForZooming(measure, rect) {
- if (!window.screen || screen.logicalXDPI == null ||
- screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
- { return rect }
- var scaleX = screen.logicalXDPI / screen.deviceXDPI;
- var scaleY = screen.logicalYDPI / screen.deviceYDPI;
- return {left: rect.left * scaleX, right: rect.right * scaleX,
- top: rect.top * scaleY, bottom: rect.bottom * scaleY}
- }
-
- function clearLineMeasurementCacheFor(lineView) {
- if (lineView.measure) {
- lineView.measure.cache = {};
- lineView.measure.heights = null;
- if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
- { lineView.measure.caches[i] = {}; } }
- }
- }
-
- function clearLineMeasurementCache(cm) {
- cm.display.externalMeasure = null;
- removeChildren(cm.display.lineMeasure);
- for (var i = 0; i < cm.display.view.length; i++)
- { clearLineMeasurementCacheFor(cm.display.view[i]); }
- }
-
- function clearCaches(cm) {
- clearLineMeasurementCache(cm);
- cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
- if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
- cm.display.lineNumChars = null;
- }
-
- function pageScrollX(doc) {
- // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
- // which causes page_Offset and bounding client rects to use
- // different reference viewports and invalidate our calculations.
- if (chrome && android) { return -(doc.body.getBoundingClientRect().left - parseInt(getComputedStyle(doc.body).marginLeft)) }
- return doc.defaultView.pageXOffset || (doc.documentElement || doc.body).scrollLeft
- }
- function pageScrollY(doc) {
- if (chrome && android) { return -(doc.body.getBoundingClientRect().top - parseInt(getComputedStyle(doc.body).marginTop)) }
- return doc.defaultView.pageYOffset || (doc.documentElement || doc.body).scrollTop
- }
-
- function widgetTopHeight(lineObj) {
- var ref = visualLine(lineObj);
- var widgets = ref.widgets;
- var height = 0;
- if (widgets) { for (var i = 0; i < widgets.length; ++i) { if (widgets[i].above)
- { height += widgetHeight(widgets[i]); } } }
- return height
- }
-
- // Converts a {top, bottom, left, right} box from line-local
- // coordinates into another coordinate system. Context may be one of
- // "line", "div" (display.lineDiv), "local"./null (editor), "window",
- // or "page".
- function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
- if (!includeWidgets) {
- var height = widgetTopHeight(lineObj);
- rect.top += height; rect.bottom += height;
- }
- if (context == "line") { return rect }
- if (!context) { context = "local"; }
- var yOff = heightAtLine(lineObj);
- if (context == "local") { yOff += paddingTop(cm.display); }
- else { yOff -= cm.display.viewOffset; }
- if (context == "page" || context == "window") {
- var lOff = cm.display.lineSpace.getBoundingClientRect();
- yOff += lOff.top + (context == "window" ? 0 : pageScrollY(doc(cm)));
- var xOff = lOff.left + (context == "window" ? 0 : pageScrollX(doc(cm)));
- rect.left += xOff; rect.right += xOff;
- }
- rect.top += yOff; rect.bottom += yOff;
- return rect
- }
-
- // Coverts a box from "div" coords to another coordinate system.
- // Context may be "window", "page", "div", or "local"./null.
- function fromCoordSystem(cm, coords, context) {
- if (context == "div") { return coords }
- var left = coords.left, top = coords.top;
- // First move into "page" coordinate system
- if (context == "page") {
- left -= pageScrollX(doc(cm));
- top -= pageScrollY(doc(cm));
- } else if (context == "local" || !context) {
- var localBox = cm.display.sizer.getBoundingClientRect();
- left += localBox.left;
- top += localBox.top;
- }
-
- var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
- return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
- }
-
- function charCoords(cm, pos, context, lineObj, bias) {
- if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
- return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
- }
-
- // Returns a box for a given cursor position, which may have an
- // 'other' property containing the position of the secondary cursor
- // on a bidi boundary.
- // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
- // and after `char - 1` in writing order of `char - 1`
- // A cursor Pos(line, char, "after") is on the same visual line as `char`
- // and before `char` in writing order of `char`
- // Examples (upper-case letters are RTL, lower-case are LTR):
- // Pos(0, 1, ...)
- // before after
- // ab a|b a|b
- // aB a|B aB|
- // Ab |Ab A|b
- // AB B|A B|A
- // Every position after the last character on a line is considered to stick
- // to the last character on the line.
- function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
- lineObj = lineObj || getLine(cm.doc, pos.line);
- if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
- function get(ch, right) {
- var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
- if (right) { m.left = m.right; } else { m.right = m.left; }
- return intoCoordSystem(cm, lineObj, m, context)
- }
- var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
- if (ch >= lineObj.text.length) {
- ch = lineObj.text.length;
- sticky = "before";
- } else if (ch <= 0) {
- ch = 0;
- sticky = "after";
- }
- if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
-
- function getBidi(ch, partPos, invert) {
- var part = order[partPos], right = part.level == 1;
- return get(invert ? ch - 1 : ch, right != invert)
- }
- var partPos = getBidiPartAt(order, ch, sticky);
- var other = bidiOther;
- var val = getBidi(ch, partPos, sticky == "before");
- if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
- return val
- }
-
- // Used to cheaply estimate the coordinates for a position. Used for
- // intermediate scroll updates.
- function estimateCoords(cm, pos) {
- var left = 0;
- pos = clipPos(cm.doc, pos);
- if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
- var lineObj = getLine(cm.doc, pos.line);
- var top = heightAtLine(lineObj) + paddingTop(cm.display);
- return {left: left, right: left, top: top, bottom: top + lineObj.height}
- }
-
- // Positions returned by coordsChar contain some extra information.
- // xRel is the relative x position of the input coordinates compared
- // to the found position (so xRel > 0 means the coordinates are to
- // the right of the character position, for example). When outside
- // is true, that means the coordinates lie outside the line's
- // vertical range.
- function PosWithInfo(line, ch, sticky, outside, xRel) {
- var pos = Pos(line, ch, sticky);
- pos.xRel = xRel;
- if (outside) { pos.outside = outside; }
- return pos
- }
-
- // Compute the character position closest to the given coordinates.
- // Input must be lineSpace-local ("div" coordinate system).
- function coordsChar(cm, x, y) {
- var doc = cm.doc;
- y += cm.display.viewOffset;
- if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
- var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
- if (lineN > last)
- { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
- if (x < 0) { x = 0; }
-
- var lineObj = getLine(doc, lineN);
- for (;;) {
- var found = coordsCharInner(cm, lineObj, lineN, x, y);
- var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));
- if (!collapsed) { return found }
- var rangeEnd = collapsed.find(1);
- if (rangeEnd.line == lineN) { return rangeEnd }
- lineObj = getLine(doc, lineN = rangeEnd.line);
- }
- }
-
- function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
- y -= widgetTopHeight(lineObj);
- var end = lineObj.text.length;
- var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
- end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
- return {begin: begin, end: end}
- }
-
- function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
- if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
- var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
- return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
- }
-
- // Returns true if the given side of a box is after the given
- // coordinates, in top-to-bottom, left-to-right order.
- function boxIsAfter(box, x, y, left) {
- return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
- }
-
- function coordsCharInner(cm, lineObj, lineNo, x, y) {
- // Move y into line-local coordinate space
- y -= heightAtLine(lineObj);
- var preparedMeasure = prepareMeasureForLine(cm, lineObj);
- // When directly calling `measureCharPrepared`, we have to adjust
- // for the widgets at this line.
- var widgetHeight = widgetTopHeight(lineObj);
- var begin = 0, end = lineObj.text.length, ltr = true;
-
- var order = getOrder(lineObj, cm.doc.direction);
- // If the line isn't plain left-to-right text, first figure out
- // which bidi section the coordinates fall into.
- if (order) {
- var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
- (cm, lineObj, lineNo, preparedMeasure, order, x, y);
- ltr = part.level != 1;
- // The awkward -1 offsets are needed because findFirst (called
- // on these below) will treat its first bound as inclusive,
- // second as exclusive, but we want to actually address the
- // characters in the part's range
- begin = ltr ? part.from : part.to - 1;
- end = ltr ? part.to : part.from - 1;
- }
-
- // A binary search to find the first character whose bounding box
- // starts after the coordinates. If we run across any whose box wrap
- // the coordinates, store that.
- var chAround = null, boxAround = null;
- var ch = findFirst(function (ch) {
- var box = measureCharPrepared(cm, preparedMeasure, ch);
- box.top += widgetHeight; box.bottom += widgetHeight;
- if (!boxIsAfter(box, x, y, false)) { return false }
- if (box.top <= y && box.left <= x) {
- chAround = ch;
- boxAround = box;
- }
- return true
- }, begin, end);
-
- var baseX, sticky, outside = false;
- // If a box around the coordinates was found, use that
- if (boxAround) {
- // Distinguish coordinates nearer to the left or right side of the box
- var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
- ch = chAround + (atStart ? 0 : 1);
- sticky = atStart ? "after" : "before";
- baseX = atLeft ? boxAround.left : boxAround.right;
- } else {
- // (Adjust for extended bound, if necessary.)
- if (!ltr && (ch == end || ch == begin)) { ch++; }
- // To determine which side to associate with, get the box to the
- // left of the character and compare it's vertical position to the
- // coordinates
- sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
- (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
- "after" : "before";
- // Now get accurate coordinates for this place, in order to get a
- // base X position
- var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
- baseX = coords.left;
- outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
- }
-
- ch = skipExtendingChars(lineObj.text, ch, 1);
- return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
- }
-
- function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
- // Bidi parts are sorted left-to-right, and in a non-line-wrapping
- // situation, we can take this ordering to correspond to the visual
- // ordering. This finds the first part whose end is after the given
- // coordinates.
- var index = findFirst(function (i) {
- var part = order[i], ltr = part.level != 1;
- return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
- "line", lineObj, preparedMeasure), x, y, true)
- }, 0, order.length - 1);
- var part = order[index];
- // If this isn't the first part, the part's start is also after
- // the coordinates, and the coordinates aren't on the same line as
- // that start, move one part back.
- if (index > 0) {
- var ltr = part.level != 1;
- var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
- "line", lineObj, preparedMeasure);
- if (boxIsAfter(start, x, y, true) && start.top > y)
- { part = order[index - 1]; }
- }
- return part
- }
-
- function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
- // In a wrapped line, rtl text on wrapping boundaries can do things
- // that don't correspond to the ordering in our `order` array at
- // all, so a binary search doesn't work, and we want to return a
- // part that only spans one line so that the binary search in
- // coordsCharInner is safe. As such, we first find the extent of the
- // wrapped line, and then do a flat search in which we discard any
- // spans that aren't on the line.
- var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
- var begin = ref.begin;
- var end = ref.end;
- if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
- var part = null, closestDist = null;
- for (var i = 0; i < order.length; i++) {
- var p = order[i];
- if (p.from >= end || p.to <= begin) { continue }
- var ltr = p.level != 1;
- var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
- // Weigh against spans ending before this, so that they are only
- // picked if nothing ends after
- var dist = endX < x ? x - endX + 1e9 : endX - x;
- if (!part || closestDist > dist) {
- part = p;
- closestDist = dist;
- }
- }
- if (!part) { part = order[order.length - 1]; }
- // Clip the part to the wrapped line.
- if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
- if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
- return part
- }
-
- var measureText;
- // Compute the default text height.
- function textHeight(display) {
- if (display.cachedTextHeight != null) { return display.cachedTextHeight }
- if (measureText == null) {
- measureText = elt("pre", null, "CodeMirror-line-like");
- // Measure a bunch of lines, for browsers that compute
- // fractional heights.
- for (var i = 0; i < 49; ++i) {
- measureText.appendChild(document.createTextNode("x"));
- measureText.appendChild(elt("br"));
- }
- measureText.appendChild(document.createTextNode("x"));
- }
- removeChildrenAndAdd(display.measure, measureText);
- var height = measureText.offsetHeight / 50;
- if (height > 3) { display.cachedTextHeight = height; }
- removeChildren(display.measure);
- return height || 1
- }
-
- // Compute the default character width.
- function charWidth(display) {
- if (display.cachedCharWidth != null) { return display.cachedCharWidth }
- var anchor = elt("span", "xxxxxxxxxx");
- var pre = elt("pre", [anchor], "CodeMirror-line-like");
- removeChildrenAndAdd(display.measure, pre);
- var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
- if (width > 2) { display.cachedCharWidth = width; }
- return width || 10
- }
-
- // Do a bulk-read of the DOM positions and sizes needed to draw the
- // view, so that we don't interleave reading and writing to the DOM.
- function getDimensions(cm) {
- var d = cm.display, left = {}, width = {};
- var gutterLeft = d.gutters.clientLeft;
- for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
- var id = cm.display.gutterSpecs[i].className;
- left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
- width[id] = n.clientWidth;
- }
- return {fixedPos: compensateForHScroll(d),
- gutterTotalWidth: d.gutters.offsetWidth,
- gutterLeft: left,
- gutterWidth: width,
- wrapperWidth: d.wrapper.clientWidth}
- }
-
- // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
- // but using getBoundingClientRect to get a sub-pixel-accurate
- // result.
- function compensateForHScroll(display) {
- return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
- }
-
- // Returns a function that estimates the height of a line, to use as
- // first approximation until the line becomes visible (and is thus
- // properly measurable).
- function estimateHeight(cm) {
- var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
- var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
- return function (line) {
- if (lineIsHidden(cm.doc, line)) { return 0 }
-
- var widgetsHeight = 0;
- if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
- if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
- } }
-
- if (wrapping)
- { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
- else
- { return widgetsHeight + th }
- }
- }
-
- function estimateLineHeights(cm) {
- var doc = cm.doc, est = estimateHeight(cm);
- doc.iter(function (line) {
- var estHeight = est(line);
- if (estHeight != line.height) { updateLineHeight(line, estHeight); }
- });
- }
-
- // Given a mouse event, find the corresponding position. If liberal
- // is false, it checks whether a gutter or scrollbar was clicked,
- // and returns null if it was. forRect is used by rectangular
- // selections, and tries to estimate a character position even for
- // coordinates beyond the right of the text.
- function posFromMouse(cm, e, liberal, forRect) {
- var display = cm.display;
- if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
-
- var x, y, space = display.lineSpace.getBoundingClientRect();
- // Fails unpredictably on IE[67] when mouse is dragged around quickly.
- try { x = e.clientX - space.left; y = e.clientY - space.top; }
- catch (e$1) { return null }
- var coords = coordsChar(cm, x, y), line;
- if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
- var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
- coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
- }
- return coords
- }
-
- // Find the view element corresponding to a given line. Return null
- // when the line isn't visible.
- function findViewIndex(cm, n) {
- if (n >= cm.display.viewTo) { return null }
- n -= cm.display.viewFrom;
- if (n < 0) { return null }
- var view = cm.display.view;
- for (var i = 0; i < view.length; i++) {
- n -= view[i].size;
- if (n < 0) { return i }
- }
- }
-
- // Updates the display.view data structure for a given change to the
- // document. From and to are in pre-change coordinates. Lendiff is
- // the amount of lines added or subtracted by the change. This is
- // used for changes that span multiple lines, or change the way
- // lines are divided into visual lines. regLineChange (below)
- // registers single-line changes.
- function regChange(cm, from, to, lendiff) {
- if (from == null) { from = cm.doc.first; }
- if (to == null) { to = cm.doc.first + cm.doc.size; }
- if (!lendiff) { lendiff = 0; }
-
- var display = cm.display;
- if (lendiff && to < display.viewTo &&
- (display.updateLineNumbers == null || display.updateLineNumbers > from))
- { display.updateLineNumbers = from; }
-
- cm.curOp.viewChanged = true;
-
- if (from >= display.viewTo) { // Change after
- if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
- { resetView(cm); }
- } else if (to <= display.viewFrom) { // Change before
- if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
- resetView(cm);
- } else {
- display.viewFrom += lendiff;
- display.viewTo += lendiff;
- }
- } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
- resetView(cm);
- } else if (from <= display.viewFrom) { // Top overlap
- var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
- if (cut) {
- display.view = display.view.slice(cut.index);
- display.viewFrom = cut.lineN;
- display.viewTo += lendiff;
- } else {
- resetView(cm);
- }
- } else if (to >= display.viewTo) { // Bottom overlap
- var cut$1 = viewCuttingPoint(cm, from, from, -1);
- if (cut$1) {
- display.view = display.view.slice(0, cut$1.index);
- display.viewTo = cut$1.lineN;
- } else {
- resetView(cm);
- }
- } else { // Gap in the middle
- var cutTop = viewCuttingPoint(cm, from, from, -1);
- var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
- if (cutTop && cutBot) {
- display.view = display.view.slice(0, cutTop.index)
- .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
- .concat(display.view.slice(cutBot.index));
- display.viewTo += lendiff;
- } else {
- resetView(cm);
- }
- }
-
- var ext = display.externalMeasured;
- if (ext) {
- if (to < ext.lineN)
- { ext.lineN += lendiff; }
- else if (from < ext.lineN + ext.size)
- { display.externalMeasured = null; }
- }
- }
-
- // Register a change to a single line. Type must be one of "text",
- // "gutter", "class", "widget"
- function regLineChange(cm, line, type) {
- cm.curOp.viewChanged = true;
- var display = cm.display, ext = cm.display.externalMeasured;
- if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
- { display.externalMeasured = null; }
-
- if (line < display.viewFrom || line >= display.viewTo) { return }
- var lineView = display.view[findViewIndex(cm, line)];
- if (lineView.node == null) { return }
- var arr = lineView.changes || (lineView.changes = []);
- if (indexOf(arr, type) == -1) { arr.push(type); }
- }
-
- // Clear the view.
- function resetView(cm) {
- cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
- cm.display.view = [];
- cm.display.viewOffset = 0;
- }
-
- function viewCuttingPoint(cm, oldN, newN, dir) {
- var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
- if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
- { return {index: index, lineN: newN} }
- var n = cm.display.viewFrom;
- for (var i = 0; i < index; i++)
- { n += view[i].size; }
- if (n != oldN) {
- if (dir > 0) {
- if (index == view.length - 1) { return null }
- diff = (n + view[index].size) - oldN;
- index++;
- } else {
- diff = n - oldN;
- }
- oldN += diff; newN += diff;
- }
- while (visualLineNo(cm.doc, newN) != newN) {
- if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
- newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
- index += dir;
- }
- return {index: index, lineN: newN}
- }
-
- // Force the view to cover a given range, adding empty view element
- // or clipping off existing ones as needed.
- function adjustView(cm, from, to) {
- var display = cm.display, view = display.view;
- if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
- display.view = buildViewArray(cm, from, to);
- display.viewFrom = from;
- } else {
- if (display.viewFrom > from)
- { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
- else if (display.viewFrom < from)
- { display.view = display.view.slice(findViewIndex(cm, from)); }
- display.viewFrom = from;
- if (display.viewTo < to)
- { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
- else if (display.viewTo > to)
- { display.view = display.view.slice(0, findViewIndex(cm, to)); }
- }
- display.viewTo = to;
- }
-
- // Count the number of lines in the view whose DOM representation is
- // out of date (or nonexistent).
- function countDirtyView(cm) {
- var view = cm.display.view, dirty = 0;
- for (var i = 0; i < view.length; i++) {
- var lineView = view[i];
- if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
- }
- return dirty
- }
-
- function updateSelection(cm) {
- cm.display.input.showSelection(cm.display.input.prepareSelection());
- }
-
- function prepareSelection(cm, primary) {
- if ( primary === void 0 ) primary = true;
-
- var doc = cm.doc, result = {};
- var curFragment = result.cursors = document.createDocumentFragment();
- var selFragment = result.selection = document.createDocumentFragment();
-
- var customCursor = cm.options.$customCursor;
- if (customCursor) { primary = true; }
- for (var i = 0; i < doc.sel.ranges.length; i++) {
- if (!primary && i == doc.sel.primIndex) { continue }
- var range = doc.sel.ranges[i];
- if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
- var collapsed = range.empty();
- if (customCursor) {
- var head = customCursor(cm, range);
- if (head) { drawSelectionCursor(cm, head, curFragment); }
- } else if (collapsed || cm.options.showCursorWhenSelecting) {
- drawSelectionCursor(cm, range.head, curFragment);
- }
- if (!collapsed)
- { drawSelectionRange(cm, range, selFragment); }
- }
- return result
- }
-
- // Draws a cursor for the given range
- function drawSelectionCursor(cm, head, output) {
- var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
-
- var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
- cursor.style.left = pos.left + "px";
- cursor.style.top = pos.top + "px";
- cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
-
- if (/\bcm-fat-cursor\b/.test(cm.getWrapperElement().className)) {
- var charPos = charCoords(cm, head, "div", null, null);
- var width = charPos.right - charPos.left;
- cursor.style.width = (width > 0 ? width : cm.defaultCharWidth()) + "px";
- }
-
- if (pos.other) {
- // Secondary cursor, shown when on a 'jump' in bi-directional text
- var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
- otherCursor.style.display = "";
- otherCursor.style.left = pos.other.left + "px";
- otherCursor.style.top = pos.other.top + "px";
- otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
- }
- }
-
- function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }
-
- // Draws the given range as a highlighted selection
- function drawSelectionRange(cm, range, output) {
- var display = cm.display, doc = cm.doc;
- var fragment = document.createDocumentFragment();
- var padding = paddingH(cm.display), leftSide = padding.left;
- var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
- var docLTR = doc.direction == "ltr";
-
- function add(left, top, width, bottom) {
- if (top < 0) { top = 0; }
- top = Math.round(top);
- bottom = Math.round(bottom);
- fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px")));
- }
-
- function drawForLine(line, fromArg, toArg) {
- var lineObj = getLine(doc, line);
- var lineLen = lineObj.text.length;
- var start, end;
- function coords(ch, bias) {
- return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
- }
-
- function wrapX(pos, dir, side) {
- var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
- var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
- var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
- return coords(ch, prop)[prop]
- }
-
- var order = getOrder(lineObj, doc.direction);
- iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
- var ltr = dir == "ltr";
- var fromPos = coords(from, ltr ? "left" : "right");
- var toPos = coords(to - 1, ltr ? "right" : "left");
-
- var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
- var first = i == 0, last = !order || i == order.length - 1;
- if (toPos.top - fromPos.top <= 3) { // Single line
- var openLeft = (docLTR ? openStart : openEnd) && first;
- var openRight = (docLTR ? openEnd : openStart) && last;
- var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
- var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
- add(left, fromPos.top, right - left, fromPos.bottom);
- } else { // Multiple lines
- var topLeft, topRight, botLeft, botRight;
- if (ltr) {
- topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
- topRight = docLTR ? rightSide : wrapX(from, dir, "before");
- botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
- botRight = docLTR && openEnd && last ? rightSide : toPos.right;
- } else {
- topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
- topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
- botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
- botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
- }
- add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
- if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
- add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
- }
-
- if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
- if (cmpCoords(toPos, start) < 0) { start = toPos; }
- if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
- if (cmpCoords(toPos, end) < 0) { end = toPos; }
- });
- return {start: start, end: end}
- }
-
- var sFrom = range.from(), sTo = range.to();
- if (sFrom.line == sTo.line) {
- drawForLine(sFrom.line, sFrom.ch, sTo.ch);
- } else {
- var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
- var singleVLine = visualLine(fromLine) == visualLine(toLine);
- var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
- var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
- if (singleVLine) {
- if (leftEnd.top < rightStart.top - 2) {
- add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
- add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
- } else {
- add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
- }
- }
- if (leftEnd.bottom < rightStart.top)
- { add(leftSide, leftEnd.bottom, null, rightStart.top); }
- }
-
- output.appendChild(fragment);
- }
-
- // Cursor-blinking
- function restartBlink(cm) {
- if (!cm.state.focused) { return }
- var display = cm.display;
- clearInterval(display.blinker);
- var on = true;
- display.cursorDiv.style.visibility = "";
- if (cm.options.cursorBlinkRate > 0)
- { display.blinker = setInterval(function () {
- if (!cm.hasFocus()) { onBlur(cm); }
- display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
- }, cm.options.cursorBlinkRate); }
- else if (cm.options.cursorBlinkRate < 0)
- { display.cursorDiv.style.visibility = "hidden"; }
- }
-
- function ensureFocus(cm) {
- if (!cm.hasFocus()) {
- cm.display.input.focus();
- if (!cm.state.focused) { onFocus(cm); }
- }
- }
-
- function delayBlurEvent(cm) {
- cm.state.delayingBlurEvent = true;
- setTimeout(function () { if (cm.state.delayingBlurEvent) {
- cm.state.delayingBlurEvent = false;
- if (cm.state.focused) { onBlur(cm); }
- } }, 100);
- }
-
- function onFocus(cm, e) {
- if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; }
-
- if (cm.options.readOnly == "nocursor") { return }
- if (!cm.state.focused) {
- signal(cm, "focus", cm, e);
- cm.state.focused = true;
- addClass(cm.display.wrapper, "CodeMirror-focused");
- // This test prevents this from firing when a context
- // menu is closed (since the input reset would kill the
- // select-all detection hack)
- if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
- cm.display.input.reset();
- if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
- }
- cm.display.input.receivedFocus();
- }
- restartBlink(cm);
- }
- function onBlur(cm, e) {
- if (cm.state.delayingBlurEvent) { return }
-
- if (cm.state.focused) {
- signal(cm, "blur", cm, e);
- cm.state.focused = false;
- rmClass(cm.display.wrapper, "CodeMirror-focused");
- }
- clearInterval(cm.display.blinker);
- setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
- }
-
- // Read the actual heights of the rendered lines, and update their
- // stored heights to match.
- function updateHeightsInViewport(cm) {
- var display = cm.display;
- var prevBottom = display.lineDiv.offsetTop;
- var viewTop = Math.max(0, display.scroller.getBoundingClientRect().top);
- var oldHeight = display.lineDiv.getBoundingClientRect().top;
- var mustScroll = 0;
- for (var i = 0; i < display.view.length; i++) {
- var cur = display.view[i], wrapping = cm.options.lineWrapping;
- var height = (void 0), width = 0;
- if (cur.hidden) { continue }
- oldHeight += cur.line.height;
- if (ie && ie_version < 8) {
- var bot = cur.node.offsetTop + cur.node.offsetHeight;
- height = bot - prevBottom;
- prevBottom = bot;
- } else {
- var box = cur.node.getBoundingClientRect();
- height = box.bottom - box.top;
- // Check that lines don't extend past the right of the current
- // editor width
- if (!wrapping && cur.text.firstChild)
- { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
- }
- var diff = cur.line.height - height;
- if (diff > .005 || diff < -.005) {
- if (oldHeight < viewTop) { mustScroll -= diff; }
- updateLineHeight(cur.line, height);
- updateWidgetHeight(cur.line);
- if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
- { updateWidgetHeight(cur.rest[j]); } }
- }
- if (width > cm.display.sizerWidth) {
- var chWidth = Math.ceil(width / charWidth(cm.display));
- if (chWidth > cm.display.maxLineLength) {
- cm.display.maxLineLength = chWidth;
- cm.display.maxLine = cur.line;
- cm.display.maxLineChanged = true;
- }
- }
- }
- if (Math.abs(mustScroll) > 2) { display.scroller.scrollTop += mustScroll; }
- }
-
- // Read and store the height of line widgets associated with the
- // given line.
- function updateWidgetHeight(line) {
- if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
- var w = line.widgets[i], parent = w.node.parentNode;
- if (parent) { w.height = parent.offsetHeight; }
- } }
- }
-
- // Compute the lines that are visible in a given viewport (defaults
- // the current scroll position). viewport may contain top,
- // height, and ensure (see op.scrollToPos) properties.
- function visibleLines(display, doc, viewport) {
- var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
- top = Math.floor(top - paddingTop(display));
- var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
-
- var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
- // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
- // forces those lines into the viewport (if possible).
- if (viewport && viewport.ensure) {
- var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
- if (ensureFrom < from) {
- from = ensureFrom;
- to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
- } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
- from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
- to = ensureTo;
- }
- }
- return {from: from, to: Math.max(to, from + 1)}
- }
-
- // SCROLLING THINGS INTO VIEW
-
- // If an editor sits on the top or bottom of the window, partially
- // scrolled out of view, this ensures that the cursor is visible.
- function maybeScrollWindow(cm, rect) {
- if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
-
- var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
- var doc = display.wrapper.ownerDocument;
- if (rect.top + box.top < 0) { doScroll = true; }
- else if (rect.bottom + box.top > (doc.defaultView.innerHeight || doc.documentElement.clientHeight)) { doScroll = false; }
- if (doScroll != null && !phantom) {
- var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
- cm.display.lineSpace.appendChild(scrollNode);
- scrollNode.scrollIntoView(doScroll);
- cm.display.lineSpace.removeChild(scrollNode);
- }
- }
-
- // Scroll a given position into view (immediately), verifying that
- // it actually became visible (as line heights are accurately
- // measured, the position of something may 'drift' during drawing).
- function scrollPosIntoView(cm, pos, end, margin) {
- if (margin == null) { margin = 0; }
- var rect;
- if (!cm.options.lineWrapping && pos == end) {
- // Set pos and end to the cursor positions around the character pos sticks to
- // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
- // If pos == Pos(_, 0, "before"), pos and end are unchanged
- end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
- pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
- }
- for (var limit = 0; limit < 5; limit++) {
- var changed = false;
- var coords = cursorCoords(cm, pos);
- var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
- rect = {left: Math.min(coords.left, endCoords.left),
- top: Math.min(coords.top, endCoords.top) - margin,
- right: Math.max(coords.left, endCoords.left),
- bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
- var scrollPos = calculateScrollPos(cm, rect);
- var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
- if (scrollPos.scrollTop != null) {
- updateScrollTop(cm, scrollPos.scrollTop);
- if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
- }
- if (scrollPos.scrollLeft != null) {
- setScrollLeft(cm, scrollPos.scrollLeft);
- if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
- }
- if (!changed) { break }
- }
- return rect
- }
-
- // Scroll a given set of coordinates into view (immediately).
- function scrollIntoView(cm, rect) {
- var scrollPos = calculateScrollPos(cm, rect);
- if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
- if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
- }
-
- // Calculate a new scroll position needed to scroll the given
- // rectangle into view. Returns an object with scrollTop and
- // scrollLeft properties. When these are undefined, the
- // vertical/horizontal position does not need to be adjusted.
- function calculateScrollPos(cm, rect) {
- var display = cm.display, snapMargin = textHeight(cm.display);
- if (rect.top < 0) { rect.top = 0; }
- var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
- var screen = displayHeight(cm), result = {};
- if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
- var docBottom = cm.doc.height + paddingVert(display);
- var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
- if (rect.top < screentop) {
- result.scrollTop = atTop ? 0 : rect.top;
- } else if (rect.bottom > screentop + screen) {
- var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
- if (newTop != screentop) { result.scrollTop = newTop; }
- }
-
- var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth;
- var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace;
- var screenw = displayWidth(cm) - display.gutters.offsetWidth;
- var tooWide = rect.right - rect.left > screenw;
- if (tooWide) { rect.right = rect.left + screenw; }
- if (rect.left < 10)
- { result.scrollLeft = 0; }
- else if (rect.left < screenleft)
- { result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); }
- else if (rect.right > screenw + screenleft - 3)
- { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
- return result
- }
-
- // Store a relative adjustment to the scroll position in the current
- // operation (to be applied when the operation finishes).
- function addToScrollTop(cm, top) {
- if (top == null) { return }
- resolveScrollToPos(cm);
- cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
- }
-
- // Make sure that at the end of the operation the current cursor is
- // shown.
- function ensureCursorVisible(cm) {
- resolveScrollToPos(cm);
- var cur = cm.getCursor();
- cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
- }
-
- function scrollToCoords(cm, x, y) {
- if (x != null || y != null) { resolveScrollToPos(cm); }
- if (x != null) { cm.curOp.scrollLeft = x; }
- if (y != null) { cm.curOp.scrollTop = y; }
- }
-
- function scrollToRange(cm, range) {
- resolveScrollToPos(cm);
- cm.curOp.scrollToPos = range;
- }
-
- // When an operation has its scrollToPos property set, and another
- // scroll action is applied before the end of the operation, this
- // 'simulates' scrolling that position into view in a cheap way, so
- // that the effect of intermediate scroll commands is not ignored.
- function resolveScrollToPos(cm) {
- var range = cm.curOp.scrollToPos;
- if (range) {
- cm.curOp.scrollToPos = null;
- var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
- scrollToCoordsRange(cm, from, to, range.margin);
- }
- }
-
- function scrollToCoordsRange(cm, from, to, margin) {
- var sPos = calculateScrollPos(cm, {
- left: Math.min(from.left, to.left),
- top: Math.min(from.top, to.top) - margin,
- right: Math.max(from.right, to.right),
- bottom: Math.max(from.bottom, to.bottom) + margin
- });
- scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
- }
-
- // Sync the scrollable area and scrollbars, ensure the viewport
- // covers the visible area.
- function updateScrollTop(cm, val) {
- if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
- if (!gecko) { updateDisplaySimple(cm, {top: val}); }
- setScrollTop(cm, val, true);
- if (gecko) { updateDisplaySimple(cm); }
- startWorker(cm, 100);
- }
-
- function setScrollTop(cm, val, forceScroll) {
- val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
- if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
- cm.doc.scrollTop = val;
- cm.display.scrollbars.setScrollTop(val);
- if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
- }
-
- // Sync scroller and scrollbar, ensure the gutter elements are
- // aligned.
- function setScrollLeft(cm, val, isScroller, forceScroll) {
- val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
- if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
- cm.doc.scrollLeft = val;
- alignHorizontally(cm);
- if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
- cm.display.scrollbars.setScrollLeft(val);
- }
-
- // SCROLLBARS
-
- // Prepare DOM reads needed to update the scrollbars. Done in one
- // shot to minimize update/measure roundtrips.
- function measureForScrollbars(cm) {
- var d = cm.display, gutterW = d.gutters.offsetWidth;
- var docH = Math.round(cm.doc.height + paddingVert(cm.display));
- return {
- clientHeight: d.scroller.clientHeight,
- viewHeight: d.wrapper.clientHeight,
- scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
- viewWidth: d.wrapper.clientWidth,
- barLeft: cm.options.fixedGutter ? gutterW : 0,
- docHeight: docH,
- scrollHeight: docH + scrollGap(cm) + d.barHeight,
- nativeBarWidth: d.nativeBarWidth,
- gutterWidth: gutterW
- }
- }
-
- var NativeScrollbars = function(place, scroll, cm) {
- this.cm = cm;
- var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
- var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
- vert.tabIndex = horiz.tabIndex = -1;
- place(vert); place(horiz);
-
- on(vert, "scroll", function () {
- if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
- });
- on(horiz, "scroll", function () {
- if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
- });
-
- this.checkedZeroWidth = false;
- // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
- if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
- };
-
- NativeScrollbars.prototype.update = function (measure) {
- var needsH = measure.scrollWidth > measure.clientWidth + 1;
- var needsV = measure.scrollHeight > measure.clientHeight + 1;
- var sWidth = measure.nativeBarWidth;
-
- if (needsV) {
- this.vert.style.display = "block";
- this.vert.style.bottom = needsH ? sWidth + "px" : "0";
- var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
- // A bug in IE8 can cause this value to be negative, so guard it.
- this.vert.firstChild.style.height =
- Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
- } else {
- this.vert.scrollTop = 0;
- this.vert.style.display = "";
- this.vert.firstChild.style.height = "0";
- }
-
- if (needsH) {
- this.horiz.style.display = "block";
- this.horiz.style.right = needsV ? sWidth + "px" : "0";
- this.horiz.style.left = measure.barLeft + "px";
- var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
- this.horiz.firstChild.style.width =
- Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
- } else {
- this.horiz.style.display = "";
- this.horiz.firstChild.style.width = "0";
- }
-
- if (!this.checkedZeroWidth && measure.clientHeight > 0) {
- if (sWidth == 0) { this.zeroWidthHack(); }
- this.checkedZeroWidth = true;
- }
-
- return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
- };
-
- NativeScrollbars.prototype.setScrollLeft = function (pos) {
- if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
- if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
- };
-
- NativeScrollbars.prototype.setScrollTop = function (pos) {
- if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
- if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
- };
-
- NativeScrollbars.prototype.zeroWidthHack = function () {
- var w = mac && !mac_geMountainLion ? "12px" : "18px";
- this.horiz.style.height = this.vert.style.width = w;
- this.horiz.style.visibility = this.vert.style.visibility = "hidden";
- this.disableHoriz = new Delayed;
- this.disableVert = new Delayed;
- };
-
- NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
- bar.style.visibility = "";
- function maybeDisable() {
- // To find out whether the scrollbar is still visible, we
- // check whether the element under the pixel in the bottom
- // right corner of the scrollbar box is the scrollbar box
- // itself (when the bar is still visible) or its filler child
- // (when the bar is hidden). If it is still visible, we keep
- // it enabled, if it's hidden, we disable pointer events.
- var box = bar.getBoundingClientRect();
- var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
- : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
- if (elt != bar) { bar.style.visibility = "hidden"; }
- else { delay.set(1000, maybeDisable); }
- }
- delay.set(1000, maybeDisable);
- };
-
- NativeScrollbars.prototype.clear = function () {
- var parent = this.horiz.parentNode;
- parent.removeChild(this.horiz);
- parent.removeChild(this.vert);
- };
-
- var NullScrollbars = function () {};
-
- NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
- NullScrollbars.prototype.setScrollLeft = function () {};
- NullScrollbars.prototype.setScrollTop = function () {};
- NullScrollbars.prototype.clear = function () {};
-
- function updateScrollbars(cm, measure) {
- if (!measure) { measure = measureForScrollbars(cm); }
- var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
- updateScrollbarsInner(cm, measure);
- for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
- if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
- { updateHeightsInViewport(cm); }
- updateScrollbarsInner(cm, measureForScrollbars(cm));
- startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
- }
- }
-
- // Re-synchronize the fake scrollbars with the actual size of the
- // content.
- function updateScrollbarsInner(cm, measure) {
- var d = cm.display;
- var sizes = d.scrollbars.update(measure);
-
- d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
- d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
- d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";
-
- if (sizes.right && sizes.bottom) {
- d.scrollbarFiller.style.display = "block";
- d.scrollbarFiller.style.height = sizes.bottom + "px";
- d.scrollbarFiller.style.width = sizes.right + "px";
- } else { d.scrollbarFiller.style.display = ""; }
- if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
- d.gutterFiller.style.display = "block";
- d.gutterFiller.style.height = sizes.bottom + "px";
- d.gutterFiller.style.width = measure.gutterWidth + "px";
- } else { d.gutterFiller.style.display = ""; }
- }
-
- var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
-
- function initScrollbars(cm) {
- if (cm.display.scrollbars) {
- cm.display.scrollbars.clear();
- if (cm.display.scrollbars.addClass)
- { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
- }
-
- cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
- cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
- // Prevent clicks in the scrollbars from killing focus
- on(node, "mousedown", function () {
- if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
- });
- node.setAttribute("cm-not-content", "true");
- }, function (pos, axis) {
- if (axis == "horizontal") { setScrollLeft(cm, pos); }
- else { updateScrollTop(cm, pos); }
- }, cm);
- if (cm.display.scrollbars.addClass)
- { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
- }
-
- // Operations are used to wrap a series of changes to the editor
- // state in such a way that each change won't have to update the
- // cursor and display (which would be awkward, slow, and
- // error-prone). Instead, display updates are batched and then all
- // combined and executed at once.
-
- var nextOpId = 0;
- // Start a new operation.
- function startOperation(cm) {
- cm.curOp = {
- cm: cm,
- viewChanged: false, // Flag that indicates that lines might need to be redrawn
- startHeight: cm.doc.height, // Used to detect need to update scrollbar
- forceUpdate: false, // Used to force a redraw
- updateInput: 0, // Whether to reset the input textarea
- typing: false, // Whether this reset should be careful to leave existing text (for compositing)
- changeObjs: null, // Accumulated changes, for firing change events
- cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
- cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
- selectionChanged: false, // Whether the selection needs to be redrawn
- updateMaxLine: false, // Set when the widest line needs to be determined anew
- scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
- scrollToPos: null, // Used to scroll to a specific position
- focus: false,
- id: ++nextOpId, // Unique ID
- markArrays: null // Used by addMarkedSpan
- };
- pushOperation(cm.curOp);
- }
-
- // Finish an operation, updating the display and signalling delayed events
- function endOperation(cm) {
- var op = cm.curOp;
- if (op) { finishOperation(op, function (group) {
- for (var i = 0; i < group.ops.length; i++)
- { group.ops[i].cm.curOp = null; }
- endOperations(group);
- }); }
- }
-
- // The DOM updates done when an operation finishes are batched so
- // that the minimum number of relayouts are required.
- function endOperations(group) {
- var ops = group.ops;
- for (var i = 0; i < ops.length; i++) // Read DOM
- { endOperation_R1(ops[i]); }
- for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
- { endOperation_W1(ops[i$1]); }
- for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
- { endOperation_R2(ops[i$2]); }
- for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
- { endOperation_W2(ops[i$3]); }
- for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
- { endOperation_finish(ops[i$4]); }
- }
-
- function endOperation_R1(op) {
- var cm = op.cm, display = cm.display;
- maybeClipScrollbars(cm);
- if (op.updateMaxLine) { findMaxLine(cm); }
-
- op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
- op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
- op.scrollToPos.to.line >= display.viewTo) ||
- display.maxLineChanged && cm.options.lineWrapping;
- op.update = op.mustUpdate &&
- new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
- }
-
- function endOperation_W1(op) {
- op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
- }
-
- function endOperation_R2(op) {
- var cm = op.cm, display = cm.display;
- if (op.updatedDisplay) { updateHeightsInViewport(cm); }
-
- op.barMeasure = measureForScrollbars(cm);
-
- // If the max line changed since it was last measured, measure it,
- // and ensure the document's width matches it.
- // updateDisplay_W2 will use these properties to do the actual resizing
- if (display.maxLineChanged && !cm.options.lineWrapping) {
- op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
- cm.display.sizerWidth = op.adjustWidthTo;
- op.barMeasure.scrollWidth =
- Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
- op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
- }
-
- if (op.updatedDisplay || op.selectionChanged)
- { op.preparedSelection = display.input.prepareSelection(); }
- }
-
- function endOperation_W2(op) {
- var cm = op.cm;
-
- if (op.adjustWidthTo != null) {
- cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
- if (op.maxScrollLeft < cm.doc.scrollLeft)
- { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
- cm.display.maxLineChanged = false;
- }
-
- var takeFocus = op.focus && op.focus == activeElt(root(cm));
- if (op.preparedSelection)
- { cm.display.input.showSelection(op.preparedSelection, takeFocus); }
- if (op.updatedDisplay || op.startHeight != cm.doc.height)
- { updateScrollbars(cm, op.barMeasure); }
- if (op.updatedDisplay)
- { setDocumentHeight(cm, op.barMeasure); }
-
- if (op.selectionChanged) { restartBlink(cm); }
-
- if (cm.state.focused && op.updateInput)
- { cm.display.input.reset(op.typing); }
- if (takeFocus) { ensureFocus(op.cm); }
- }
-
- function endOperation_finish(op) {
- var cm = op.cm, display = cm.display, doc = cm.doc;
-
- if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }
-
- // Abort mouse wheel delta measurement, when scrolling explicitly
- if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
- { display.wheelStartX = display.wheelStartY = null; }
-
- // Propagate the scroll position to the actual DOM scroller
- if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }
-
- if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
- // If we need to scroll a specific position into view, do so.
- if (op.scrollToPos) {
- var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
- clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
- maybeScrollWindow(cm, rect);
- }
-
- // Fire events for markers that are hidden/unidden by editing or
- // undoing
- var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
- if (hidden) { for (var i = 0; i < hidden.length; ++i)
- { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
- if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
- { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }
-
- if (display.wrapper.offsetHeight)
- { doc.scrollTop = cm.display.scroller.scrollTop; }
-
- // Fire change events, and delayed event handlers
- if (op.changeObjs)
- { signal(cm, "changes", cm, op.changeObjs); }
- if (op.update)
- { op.update.finish(); }
- }
-
- // Run the given function in an operation
- function runInOp(cm, f) {
- if (cm.curOp) { return f() }
- startOperation(cm);
- try { return f() }
- finally { endOperation(cm); }
- }
- // Wraps a function in an operation. Returns the wrapped function.
- function operation(cm, f) {
- return function() {
- if (cm.curOp) { return f.apply(cm, arguments) }
- startOperation(cm);
- try { return f.apply(cm, arguments) }
- finally { endOperation(cm); }
- }
- }
- // Used to add methods to editor and doc instances, wrapping them in
- // operations.
- function methodOp(f) {
- return function() {
- if (this.curOp) { return f.apply(this, arguments) }
- startOperation(this);
- try { return f.apply(this, arguments) }
- finally { endOperation(this); }
- }
- }
- function docMethodOp(f) {
- return function() {
- var cm = this.cm;
- if (!cm || cm.curOp) { return f.apply(this, arguments) }
- startOperation(cm);
- try { return f.apply(this, arguments) }
- finally { endOperation(cm); }
- }
- }
-
- // HIGHLIGHT WORKER
-
- function startWorker(cm, time) {
- if (cm.doc.highlightFrontier < cm.display.viewTo)
- { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
- }
-
- function highlightWorker(cm) {
- var doc = cm.doc;
- if (doc.highlightFrontier >= cm.display.viewTo) { return }
- var end = +new Date + cm.options.workTime;
- var context = getContextBefore(cm, doc.highlightFrontier);
- var changedLines = [];
-
- doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
- if (context.line >= cm.display.viewFrom) { // Visible
- var oldStyles = line.styles;
- var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
- var highlighted = highlightLine(cm, line, context, true);
- if (resetState) { context.state = resetState; }
- line.styles = highlighted.styles;
- var oldCls = line.styleClasses, newCls = highlighted.classes;
- if (newCls) { line.styleClasses = newCls; }
- else if (oldCls) { line.styleClasses = null; }
- var ischange = !oldStyles || oldStyles.length != line.styles.length ||
- oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
- for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
- if (ischange) { changedLines.push(context.line); }
- line.stateAfter = context.save();
- context.nextLine();
- } else {
- if (line.text.length <= cm.options.maxHighlightLength)
- { processLine(cm, line.text, context); }
- line.stateAfter = context.line % 5 == 0 ? context.save() : null;
- context.nextLine();
- }
- if (+new Date > end) {
- startWorker(cm, cm.options.workDelay);
- return true
- }
- });
- doc.highlightFrontier = context.line;
- doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
- if (changedLines.length) { runInOp(cm, function () {
- for (var i = 0; i < changedLines.length; i++)
- { regLineChange(cm, changedLines[i], "text"); }
- }); }
- }
-
- // DISPLAY DRAWING
-
- var DisplayUpdate = function(cm, viewport, force) {
- var display = cm.display;
-
- this.viewport = viewport;
- // Store some values that we'll need later (but don't want to force a relayout for)
- this.visible = visibleLines(display, cm.doc, viewport);
- this.editorIsHidden = !display.wrapper.offsetWidth;
- this.wrapperHeight = display.wrapper.clientHeight;
- this.wrapperWidth = display.wrapper.clientWidth;
- this.oldDisplayWidth = displayWidth(cm);
- this.force = force;
- this.dims = getDimensions(cm);
- this.events = [];
- };
-
- DisplayUpdate.prototype.signal = function (emitter, type) {
- if (hasHandler(emitter, type))
- { this.events.push(arguments); }
- };
- DisplayUpdate.prototype.finish = function () {
- for (var i = 0; i < this.events.length; i++)
- { signal.apply(null, this.events[i]); }
- };
-
- function maybeClipScrollbars(cm) {
- var display = cm.display;
- if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
- display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
- display.heightForcer.style.height = scrollGap(cm) + "px";
- display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
- display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
- display.scrollbarsClipped = true;
- }
- }
-
- function selectionSnapshot(cm) {
- if (cm.hasFocus()) { return null }
- var active = activeElt(root(cm));
- if (!active || !contains(cm.display.lineDiv, active)) { return null }
- var result = {activeElt: active};
- if (window.getSelection) {
- var sel = win(cm).getSelection();
- if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
- result.anchorNode = sel.anchorNode;
- result.anchorOffset = sel.anchorOffset;
- result.focusNode = sel.focusNode;
- result.focusOffset = sel.focusOffset;
- }
- }
- return result
- }
-
- function restoreSelection(snapshot) {
- if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt(rootNode(snapshot.activeElt))) { return }
- snapshot.activeElt.focus();
- if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
- snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
- var doc = snapshot.activeElt.ownerDocument;
- var sel = doc.defaultView.getSelection(), range = doc.createRange();
- range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
- range.collapse(false);
- sel.removeAllRanges();
- sel.addRange(range);
- sel.extend(snapshot.focusNode, snapshot.focusOffset);
- }
- }
-
- // Does the actual updating of the line display. Bails out
- // (returning false) when there is nothing to be done and forced is
- // false.
- function updateDisplayIfNeeded(cm, update) {
- var display = cm.display, doc = cm.doc;
-
- if (update.editorIsHidden) {
- resetView(cm);
- return false
- }
-
- // Bail out if the visible area is already rendered and nothing changed.
- if (!update.force &&
- update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
- (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
- display.renderedView == display.view && countDirtyView(cm) == 0)
- { return false }
-
- if (maybeUpdateLineNumberWidth(cm)) {
- resetView(cm);
- update.dims = getDimensions(cm);
- }
-
- // Compute a suitable new viewport (from & to)
- var end = doc.first + doc.size;
- var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
- var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
- if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
- if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
- if (sawCollapsedSpans) {
- from = visualLineNo(cm.doc, from);
- to = visualLineEndNo(cm.doc, to);
- }
-
- var different = from != display.viewFrom || to != display.viewTo ||
- display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
- adjustView(cm, from, to);
-
- display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
- // Position the mover div to align with the current scroll position
- cm.display.mover.style.top = display.viewOffset + "px";
-
- var toUpdate = countDirtyView(cm);
- if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
- (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
- { return false }
-
- // For big changes, we hide the enclosing element during the
- // update, since that speeds up the operations on most browsers.
- var selSnapshot = selectionSnapshot(cm);
- if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
- patchDisplay(cm, display.updateLineNumbers, update.dims);
- if (toUpdate > 4) { display.lineDiv.style.display = ""; }
- display.renderedView = display.view;
- // There might have been a widget with a focused element that got
- // hidden or updated, if so re-focus it.
- restoreSelection(selSnapshot);
-
- // Prevent selection and cursors from interfering with the scroll
- // width and height.
- removeChildren(display.cursorDiv);
- removeChildren(display.selectionDiv);
- display.gutters.style.height = display.sizer.style.minHeight = 0;
-
- if (different) {
- display.lastWrapHeight = update.wrapperHeight;
- display.lastWrapWidth = update.wrapperWidth;
- startWorker(cm, 400);
- }
-
- display.updateLineNumbers = null;
-
- return true
- }
-
- function postUpdateDisplay(cm, update) {
- var viewport = update.viewport;
-
- for (var first = true;; first = false) {
- if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
- // Clip forced viewport to actual scrollable area.
- if (viewport && viewport.top != null)
- { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
- // Updated line heights might result in the drawn area not
- // actually covering the viewport. Keep looping until it does.
- update.visible = visibleLines(cm.display, cm.doc, viewport);
- if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
- { break }
- } else if (first) {
- update.visible = visibleLines(cm.display, cm.doc, viewport);
- }
- if (!updateDisplayIfNeeded(cm, update)) { break }
- updateHeightsInViewport(cm);
- var barMeasure = measureForScrollbars(cm);
- updateSelection(cm);
- updateScrollbars(cm, barMeasure);
- setDocumentHeight(cm, barMeasure);
- update.force = false;
- }
-
- update.signal(cm, "update", cm);
- if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
- update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
- cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
- }
- }
-
- function updateDisplaySimple(cm, viewport) {
- var update = new DisplayUpdate(cm, viewport);
- if (updateDisplayIfNeeded(cm, update)) {
- updateHeightsInViewport(cm);
- postUpdateDisplay(cm, update);
- var barMeasure = measureForScrollbars(cm);
- updateSelection(cm);
- updateScrollbars(cm, barMeasure);
- setDocumentHeight(cm, barMeasure);
- update.finish();
- }
- }
-
- // Sync the actual display DOM structure with display.view, removing
- // nodes for lines that are no longer in view, and creating the ones
- // that are not there yet, and updating the ones that are out of
- // date.
- function patchDisplay(cm, updateNumbersFrom, dims) {
- var display = cm.display, lineNumbers = cm.options.lineNumbers;
- var container = display.lineDiv, cur = container.firstChild;
-
- function rm(node) {
- var next = node.nextSibling;
- // Works around a throw-scroll bug in OS X Webkit
- if (webkit && mac && cm.display.currentWheelTarget == node)
- { node.style.display = "none"; }
- else
- { node.parentNode.removeChild(node); }
- return next
- }
-
- var view = display.view, lineN = display.viewFrom;
- // Loop over the elements in the view, syncing cur (the DOM nodes
- // in display.lineDiv) with the view as we go.
- for (var i = 0; i < view.length; i++) {
- var lineView = view[i];
- if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
- var node = buildLineElement(cm, lineView, lineN, dims);
- container.insertBefore(node, cur);
- } else { // Already drawn
- while (cur != lineView.node) { cur = rm(cur); }
- var updateNumber = lineNumbers && updateNumbersFrom != null &&
- updateNumbersFrom <= lineN && lineView.lineNumber;
- if (lineView.changes) {
- if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
- updateLineForChanges(cm, lineView, lineN, dims);
- }
- if (updateNumber) {
- removeChildren(lineView.lineNumber);
- lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
- }
- cur = lineView.node.nextSibling;
- }
- lineN += lineView.size;
- }
- while (cur) { cur = rm(cur); }
- }
-
- function updateGutterSpace(display) {
- var width = display.gutters.offsetWidth;
- display.sizer.style.marginLeft = width + "px";
- // Send an event to consumers responding to changes in gutter width.
- signalLater(display, "gutterChanged", display);
- }
-
- function setDocumentHeight(cm, measure) {
- cm.display.sizer.style.minHeight = measure.docHeight + "px";
- cm.display.heightForcer.style.top = measure.docHeight + "px";
- cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
- }
-
- // Re-align line numbers and gutter marks to compensate for
- // horizontal scrolling.
- function alignHorizontally(cm) {
- var display = cm.display, view = display.view;
- if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
- var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
- var gutterW = display.gutters.offsetWidth, left = comp + "px";
- for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
- if (cm.options.fixedGutter) {
- if (view[i].gutter)
- { view[i].gutter.style.left = left; }
- if (view[i].gutterBackground)
- { view[i].gutterBackground.style.left = left; }
- }
- var align = view[i].alignable;
- if (align) { for (var j = 0; j < align.length; j++)
- { align[j].style.left = left; } }
- } }
- if (cm.options.fixedGutter)
- { display.gutters.style.left = (comp + gutterW) + "px"; }
- }
-
- // Used to ensure that the line number gutter is still the right
- // size for the current document size. Returns true when an update
- // is needed.
- function maybeUpdateLineNumberWidth(cm) {
- if (!cm.options.lineNumbers) { return false }
- var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
- if (last.length != display.lineNumChars) {
- var test = display.measure.appendChild(elt("div", [elt("div", last)],
- "CodeMirror-linenumber CodeMirror-gutter-elt"));
- var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
- display.lineGutter.style.width = "";
- display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
- display.lineNumWidth = display.lineNumInnerWidth + padding;
- display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
- display.lineGutter.style.width = display.lineNumWidth + "px";
- updateGutterSpace(cm.display);
- return true
- }
- return false
- }
-
- function getGutters(gutters, lineNumbers) {
- var result = [], sawLineNumbers = false;
- for (var i = 0; i < gutters.length; i++) {
- var name = gutters[i], style = null;
- if (typeof name != "string") { style = name.style; name = name.className; }
- if (name == "CodeMirror-linenumbers") {
- if (!lineNumbers) { continue }
- else { sawLineNumbers = true; }
- }
- result.push({className: name, style: style});
- }
- if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
- return result
- }
-
- // Rebuild the gutter elements, ensure the margin to the left of the
- // code matches their width.
- function renderGutters(display) {
- var gutters = display.gutters, specs = display.gutterSpecs;
- removeChildren(gutters);
- display.lineGutter = null;
- for (var i = 0; i < specs.length; ++i) {
- var ref = specs[i];
- var className = ref.className;
- var style = ref.style;
- var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
- if (style) { gElt.style.cssText = style; }
- if (className == "CodeMirror-linenumbers") {
- display.lineGutter = gElt;
- gElt.style.width = (display.lineNumWidth || 1) + "px";
- }
- }
- gutters.style.display = specs.length ? "" : "none";
- updateGutterSpace(display);
- }
-
- function updateGutters(cm) {
- renderGutters(cm.display);
- regChange(cm);
- alignHorizontally(cm);
- }
-
- // The display handles the DOM integration, both for input reading
- // and content drawing. It holds references to DOM nodes and
- // display-related state.
-
- function Display(place, doc, input, options) {
- var d = this;
- this.input = input;
-
- // Covers bottom-right square when both scrollbars are present.
- d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
- d.scrollbarFiller.setAttribute("cm-not-content", "true");
- // Covers bottom of gutter when coverGutterNextToScrollbar is on
- // and h scrollbar is present.
- d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
- d.gutterFiller.setAttribute("cm-not-content", "true");
- // Will contain the actual code, positioned to cover the viewport.
- d.lineDiv = eltP("div", null, "CodeMirror-code");
- // Elements are added to these to represent selection and cursors.
- d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
- d.cursorDiv = elt("div", null, "CodeMirror-cursors");
- // A visibility: hidden element used to find the size of things.
- d.measure = elt("div", null, "CodeMirror-measure");
- // When lines outside of the viewport are measured, they are drawn in this.
- d.lineMeasure = elt("div", null, "CodeMirror-measure");
- // Wraps everything that needs to exist inside the vertically-padded coordinate system
- d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
- null, "position: relative; outline: none");
- var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
- // Moved around its parent to cover visible view.
- d.mover = elt("div", [lines], null, "position: relative");
- // Set to the height of the document, allowing scrolling.
- d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
- d.sizerWidth = null;
- // Behavior of elts with overflow: auto and padding is
- // inconsistent across browsers. This is used to ensure the
- // scrollable area is big enough.
- d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
- // Will contain the gutters, if any.
- d.gutters = elt("div", null, "CodeMirror-gutters");
- d.lineGutter = null;
- // Actual scrollable element.
- d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
- d.scroller.setAttribute("tabIndex", "-1");
- // The element in which the editor lives.
- d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
- // See #6982. FIXME remove when this has been fixed for a while in Chrome
- if (chrome && chrome_version >= 105) { d.wrapper.style.clipPath = "inset(0px)"; }
-
- // This attribute is respected by automatic translation systems such as Google Translate,
- // and may also be respected by tools used by human translators.
- d.wrapper.setAttribute('translate', 'no');
-
- // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
- if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
- if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }
-
- if (place) {
- if (place.appendChild) { place.appendChild(d.wrapper); }
- else { place(d.wrapper); }
- }
-
- // Current rendered range (may be bigger than the view window).
- d.viewFrom = d.viewTo = doc.first;
- d.reportedViewFrom = d.reportedViewTo = doc.first;
- // Information about the rendered lines.
- d.view = [];
- d.renderedView = null;
- // Holds info about a single rendered line when it was rendered
- // for measurement, while not in view.
- d.externalMeasured = null;
- // Empty space (in pixels) above the view
- d.viewOffset = 0;
- d.lastWrapHeight = d.lastWrapWidth = 0;
- d.updateLineNumbers = null;
-
- d.nativeBarWidth = d.barHeight = d.barWidth = 0;
- d.scrollbarsClipped = false;
-
- // Used to only resize the line number gutter when necessary (when
- // the amount of lines crosses a boundary that makes its width change)
- d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
- // Set to true when a non-horizontal-scrolling line widget is
- // added. As an optimization, line widget aligning is skipped when
- // this is false.
- d.alignWidgets = false;
-
- d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
-
- // Tracks the maximum line length so that the horizontal scrollbar
- // can be kept static when scrolling.
- d.maxLine = null;
- d.maxLineLength = 0;
- d.maxLineChanged = false;
-
- // Used for measuring wheel scrolling granularity
- d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
-
- // True when shift is held down.
- d.shift = false;
-
- // Used to track whether anything happened since the context menu
- // was opened.
- d.selForContextMenu = null;
-
- d.activeTouch = null;
-
- d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
- renderGutters(d);
-
- input.init(d);
- }
-
- // Since the delta values reported on mouse wheel events are
- // unstandardized between browsers and even browser versions, and
- // generally horribly unpredictable, this code starts by measuring
- // the scroll effect that the first few mouse wheel events have,
- // and, from that, detects the way it can convert deltas to pixel
- // offsets afterwards.
- //
- // The reason we want to know the amount a wheel event will scroll
- // is that it gives us a chance to update the display before the
- // actual scrolling happens, reducing flickering.
-
- var wheelSamples = 0, wheelPixelsPerUnit = null;
- // Fill in a browser-detected starting value on browsers where we
- // know one. These don't have to be accurate -- the result of them
- // being wrong would just be a slight flicker on the first wheel
- // scroll (if it is large enough).
- if (ie) { wheelPixelsPerUnit = -.53; }
- else if (gecko) { wheelPixelsPerUnit = 15; }
- else if (chrome) { wheelPixelsPerUnit = -.7; }
- else if (safari) { wheelPixelsPerUnit = -1/3; }
-
- function wheelEventDelta(e) {
- var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
- if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
- if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
- else if (dy == null) { dy = e.wheelDelta; }
- return {x: dx, y: dy}
- }
- function wheelEventPixels(e) {
- var delta = wheelEventDelta(e);
- delta.x *= wheelPixelsPerUnit;
- delta.y *= wheelPixelsPerUnit;
- return delta
- }
-
- function onScrollWheel(cm, e) {
- // On Chrome 102, viewport updates somehow stop wheel-based
- // scrolling. Turning off pointer events during the scroll seems
- // to avoid the issue.
- if (chrome && chrome_version == 102) {
- if (cm.display.chromeScrollHack == null) { cm.display.sizer.style.pointerEvents = "none"; }
- else { clearTimeout(cm.display.chromeScrollHack); }
- cm.display.chromeScrollHack = setTimeout(function () {
- cm.display.chromeScrollHack = null;
- cm.display.sizer.style.pointerEvents = "";
- }, 100);
- }
- var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
- var pixelsPerUnit = wheelPixelsPerUnit;
- if (e.deltaMode === 0) {
- dx = e.deltaX;
- dy = e.deltaY;
- pixelsPerUnit = 1;
- }
-
- var display = cm.display, scroll = display.scroller;
- // Quit if there's nothing to scroll here
- var canScrollX = scroll.scrollWidth > scroll.clientWidth;
- var canScrollY = scroll.scrollHeight > scroll.clientHeight;
- if (!(dx && canScrollX || dy && canScrollY)) { return }
-
- // Webkit browsers on OS X abort momentum scrolls when the target
- // of the scroll event is removed from the scrollable element.
- // This hack (see related code in patchDisplay) makes sure the
- // element is kept around.
- if (dy && mac && webkit) {
- outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
- for (var i = 0; i < view.length; i++) {
- if (view[i].node == cur) {
- cm.display.currentWheelTarget = cur;
- break outer
- }
- }
- }
- }
-
- // On some browsers, horizontal scrolling will cause redraws to
- // happen before the gutter has been realigned, causing it to
- // wriggle around in a most unseemly way. When we have an
- // estimated pixels/delta value, we just handle horizontal
- // scrolling entirely here. It'll be slightly off from native, but
- // better than glitching out.
- if (dx && !gecko && !presto && pixelsPerUnit != null) {
- if (dy && canScrollY)
- { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * pixelsPerUnit)); }
- setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * pixelsPerUnit));
- // Only prevent default scrolling if vertical scrolling is
- // actually possible. Otherwise, it causes vertical scroll
- // jitter on OSX trackpads when deltaX is small and deltaY
- // is large (issue #3579)
- if (!dy || (dy && canScrollY))
- { e_preventDefault(e); }
- display.wheelStartX = null; // Abort measurement, if in progress
- return
- }
-
- // 'Project' the visible viewport to cover the area that is being
- // scrolled into view (if we know enough to estimate it).
- if (dy && pixelsPerUnit != null) {
- var pixels = dy * pixelsPerUnit;
- var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
- if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
- else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
- updateDisplaySimple(cm, {top: top, bottom: bot});
- }
-
- if (wheelSamples < 20 && e.deltaMode !== 0) {
- if (display.wheelStartX == null) {
- display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
- display.wheelDX = dx; display.wheelDY = dy;
- setTimeout(function () {
- if (display.wheelStartX == null) { return }
- var movedX = scroll.scrollLeft - display.wheelStartX;
- var movedY = scroll.scrollTop - display.wheelStartY;
- var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
- (movedX && display.wheelDX && movedX / display.wheelDX);
- display.wheelStartX = display.wheelStartY = null;
- if (!sample) { return }
- wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
- ++wheelSamples;
- }, 200);
- } else {
- display.wheelDX += dx; display.wheelDY += dy;
- }
- }
- }
-
- // Selection objects are immutable. A new one is created every time
- // the selection changes. A selection is one or more non-overlapping
- // (and non-touching) ranges, sorted, and an integer that indicates
- // which one is the primary selection (the one that's scrolled into
- // view, that getCursor returns, etc).
- var Selection = function(ranges, primIndex) {
- this.ranges = ranges;
- this.primIndex = primIndex;
- };
-
- Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
-
- Selection.prototype.equals = function (other) {
- if (other == this) { return true }
- if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
- for (var i = 0; i < this.ranges.length; i++) {
- var here = this.ranges[i], there = other.ranges[i];
- if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
- }
- return true
- };
-
- Selection.prototype.deepCopy = function () {
- var out = [];
- for (var i = 0; i < this.ranges.length; i++)
- { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
- return new Selection(out, this.primIndex)
- };
-
- Selection.prototype.somethingSelected = function () {
- for (var i = 0; i < this.ranges.length; i++)
- { if (!this.ranges[i].empty()) { return true } }
- return false
- };
-
- Selection.prototype.contains = function (pos, end) {
- if (!end) { end = pos; }
- for (var i = 0; i < this.ranges.length; i++) {
- var range = this.ranges[i];
- if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
- { return i }
- }
- return -1
- };
-
- var Range = function(anchor, head) {
- this.anchor = anchor; this.head = head;
- };
-
- Range.prototype.from = function () { return minPos(this.anchor, this.head) };
- Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
- Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
-
- // Take an unsorted, potentially overlapping set of ranges, and
- // build a selection out of it. 'Consumes' ranges array (modifying
- // it).
- function normalizeSelection(cm, ranges, primIndex) {
- var mayTouch = cm && cm.options.selectionsMayTouch;
- var prim = ranges[primIndex];
- ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
- primIndex = indexOf(ranges, prim);
- for (var i = 1; i < ranges.length; i++) {
- var cur = ranges[i], prev = ranges[i - 1];
- var diff = cmp(prev.to(), cur.from());
- if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
- var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
- var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
- if (i <= primIndex) { --primIndex; }
- ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
- }
- }
- return new Selection(ranges, primIndex)
- }
-
- function simpleSelection(anchor, head) {
- return new Selection([new Range(anchor, head || anchor)], 0)
- }
-
- // Compute the position of the end of a change (its 'to' property
- // refers to the pre-change end).
- function changeEnd(change) {
- if (!change.text) { return change.to }
- return Pos(change.from.line + change.text.length - 1,
- lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
- }
-
- // Adjust a position to refer to the post-change position of the
- // same text, or the end of the change if the change covers it.
- function adjustForChange(pos, change) {
- if (cmp(pos, change.from) < 0) { return pos }
- if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
-
- var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
- if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
- return Pos(line, ch)
- }
-
- function computeSelAfterChange(doc, change) {
- var out = [];
- for (var i = 0; i < doc.sel.ranges.length; i++) {
- var range = doc.sel.ranges[i];
- out.push(new Range(adjustForChange(range.anchor, change),
- adjustForChange(range.head, change)));
- }
- return normalizeSelection(doc.cm, out, doc.sel.primIndex)
- }
-
- function offsetPos(pos, old, nw) {
- if (pos.line == old.line)
- { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
- else
- { return Pos(nw.line + (pos.line - old.line), pos.ch) }
- }
-
- // Used by replaceSelections to allow moving the selection to the
- // start or around the replaced test. Hint may be "start" or "around".
- function computeReplacedSel(doc, changes, hint) {
- var out = [];
- var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
- for (var i = 0; i < changes.length; i++) {
- var change = changes[i];
- var from = offsetPos(change.from, oldPrev, newPrev);
- var to = offsetPos(changeEnd(change), oldPrev, newPrev);
- oldPrev = change.to;
- newPrev = to;
- if (hint == "around") {
- var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
- out[i] = new Range(inv ? to : from, inv ? from : to);
- } else {
- out[i] = new Range(from, from);
- }
- }
- return new Selection(out, doc.sel.primIndex)
- }
-
- // Used to get the editor into a consistent state again when options change.
-
- function loadMode(cm) {
- cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
- resetModeState(cm);
- }
-
- function resetModeState(cm) {
- cm.doc.iter(function (line) {
- if (line.stateAfter) { line.stateAfter = null; }
- if (line.styles) { line.styles = null; }
- });
- cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
- startWorker(cm, 100);
- cm.state.modeGen++;
- if (cm.curOp) { regChange(cm); }
- }
-
- // DOCUMENT DATA STRUCTURE
-
- // By default, updates that start and end at the beginning of a line
- // are treated specially, in order to make the association of line
- // widgets and marker elements with the text behave more intuitive.
- function isWholeLineUpdate(doc, change) {
- return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
- (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
- }
-
- // Perform a change on the document data structure.
- function updateDoc(doc, change, markedSpans, estimateHeight) {
- function spansFor(n) {return markedSpans ? markedSpans[n] : null}
- function update(line, text, spans) {
- updateLine(line, text, spans, estimateHeight);
- signalLater(line, "change", line, change);
- }
- function linesFor(start, end) {
- var result = [];
- for (var i = start; i < end; ++i)
- { result.push(new Line(text[i], spansFor(i), estimateHeight)); }
- return result
- }
-
- var from = change.from, to = change.to, text = change.text;
- var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
- var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
-
- // Adjust the line structure
- if (change.full) {
- doc.insert(0, linesFor(0, text.length));
- doc.remove(text.length, doc.size - text.length);
- } else if (isWholeLineUpdate(doc, change)) {
- // This is a whole-line replace. Treated specially to make
- // sure line objects move the way they are supposed to.
- var added = linesFor(0, text.length - 1);
- update(lastLine, lastLine.text, lastSpans);
- if (nlines) { doc.remove(from.line, nlines); }
- if (added.length) { doc.insert(from.line, added); }
- } else if (firstLine == lastLine) {
- if (text.length == 1) {
- update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
- } else {
- var added$1 = linesFor(1, text.length - 1);
- added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
- update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
- doc.insert(from.line + 1, added$1);
- }
- } else if (text.length == 1) {
- update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
- doc.remove(from.line + 1, nlines);
- } else {
- update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
- update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
- var added$2 = linesFor(1, text.length - 1);
- if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
- doc.insert(from.line + 1, added$2);
- }
-
- signalLater(doc, "change", doc, change);
- }
-
- // Call f for all linked documents.
- function linkedDocs(doc, f, sharedHistOnly) {
- function propagate(doc, skip, sharedHist) {
- if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
- var rel = doc.linked[i];
- if (rel.doc == skip) { continue }
- var shared = sharedHist && rel.sharedHist;
- if (sharedHistOnly && !shared) { continue }
- f(rel.doc, shared);
- propagate(rel.doc, doc, shared);
- } }
- }
- propagate(doc, null, true);
- }
-
- // Attach a document to an editor.
- function attachDoc(cm, doc) {
- if (doc.cm) { throw new Error("This document is already in use.") }
- cm.doc = doc;
- doc.cm = cm;
- estimateLineHeights(cm);
- loadMode(cm);
- setDirectionClass(cm);
- cm.options.direction = doc.direction;
- if (!cm.options.lineWrapping) { findMaxLine(cm); }
- cm.options.mode = doc.modeOption;
- regChange(cm);
- }
-
- function setDirectionClass(cm) {
- (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
- }
-
- function directionChanged(cm) {
- runInOp(cm, function () {
- setDirectionClass(cm);
- regChange(cm);
- });
- }
-
- function History(prev) {
- // Arrays of change events and selections. Doing something adds an
- // event to done and clears undo. Undoing moves events from done
- // to undone, redoing moves them in the other direction.
- this.done = []; this.undone = [];
- this.undoDepth = prev ? prev.undoDepth : Infinity;
- // Used to track when changes can be merged into a single undo
- // event
- this.lastModTime = this.lastSelTime = 0;
- this.lastOp = this.lastSelOp = null;
- this.lastOrigin = this.lastSelOrigin = null;
- // Used by the isClean() method
- this.generation = this.maxGeneration = prev ? prev.maxGeneration : 1;
- }
-
- // Create a history change event from an updateDoc-style change
- // object.
- function historyChangeFromChange(doc, change) {
- var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
- attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
- linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
- return histChange
- }
-
- // Pop all selection events off the end of a history array. Stop at
- // a change event.
- function clearSelectionEvents(array) {
- while (array.length) {
- var last = lst(array);
- if (last.ranges) { array.pop(); }
- else { break }
- }
- }
-
- // Find the top change event in the history. Pop off selection
- // events that are in the way.
- function lastChangeEvent(hist, force) {
- if (force) {
- clearSelectionEvents(hist.done);
- return lst(hist.done)
- } else if (hist.done.length && !lst(hist.done).ranges) {
- return lst(hist.done)
- } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
- hist.done.pop();
- return lst(hist.done)
- }
- }
-
- // Register a change in the history. Merges changes that are within
- // a single operation, or are close together with an origin that
- // allows merging (starting with "+") into a single event.
- function addChangeToHistory(doc, change, selAfter, opId) {
- var hist = doc.history;
- hist.undone.length = 0;
- var time = +new Date, cur;
- var last;
-
- if ((hist.lastOp == opId ||
- hist.lastOrigin == change.origin && change.origin &&
- ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
- change.origin.charAt(0) == "*")) &&
- (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
- // Merge this change into the last event
- last = lst(cur.changes);
- if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
- // Optimized case for simple insertion -- don't want to add
- // new changesets for every character typed
- last.to = changeEnd(change);
- } else {
- // Add new sub-event
- cur.changes.push(historyChangeFromChange(doc, change));
- }
- } else {
- // Can not be merged, start a new event.
- var before = lst(hist.done);
- if (!before || !before.ranges)
- { pushSelectionToHistory(doc.sel, hist.done); }
- cur = {changes: [historyChangeFromChange(doc, change)],
- generation: hist.generation};
- hist.done.push(cur);
- while (hist.done.length > hist.undoDepth) {
- hist.done.shift();
- if (!hist.done[0].ranges) { hist.done.shift(); }
- }
- }
- hist.done.push(selAfter);
- hist.generation = ++hist.maxGeneration;
- hist.lastModTime = hist.lastSelTime = time;
- hist.lastOp = hist.lastSelOp = opId;
- hist.lastOrigin = hist.lastSelOrigin = change.origin;
-
- if (!last) { signal(doc, "historyAdded"); }
- }
-
- function selectionEventCanBeMerged(doc, origin, prev, sel) {
- var ch = origin.charAt(0);
- return ch == "*" ||
- ch == "+" &&
- prev.ranges.length == sel.ranges.length &&
- prev.somethingSelected() == sel.somethingSelected() &&
- new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
- }
-
- // Called whenever the selection changes, sets the new selection as
- // the pending selection in the history, and pushes the old pending
- // selection into the 'done' array when it was significantly
- // different (in number of selected ranges, emptiness, or time).
- function addSelectionToHistory(doc, sel, opId, options) {
- var hist = doc.history, origin = options && options.origin;
-
- // A new event is started when the previous origin does not match
- // the current, or the origins don't allow matching. Origins
- // starting with * are always merged, those starting with + are
- // merged when similar and close together in time.
- if (opId == hist.lastSelOp ||
- (origin && hist.lastSelOrigin == origin &&
- (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
- selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
- { hist.done[hist.done.length - 1] = sel; }
- else
- { pushSelectionToHistory(sel, hist.done); }
-
- hist.lastSelTime = +new Date;
- hist.lastSelOrigin = origin;
- hist.lastSelOp = opId;
- if (options && options.clearRedo !== false)
- { clearSelectionEvents(hist.undone); }
- }
-
- function pushSelectionToHistory(sel, dest) {
- var top = lst(dest);
- if (!(top && top.ranges && top.equals(sel)))
- { dest.push(sel); }
- }
-
- // Used to store marked span information in the history.
- function attachLocalSpans(doc, change, from, to) {
- var existing = change["spans_" + doc.id], n = 0;
- doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
- if (line.markedSpans)
- { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
- ++n;
- });
- }
-
- // When un/re-doing restores text containing marked spans, those
- // that have been explicitly cleared should not be restored.
- function removeClearedSpans(spans) {
- if (!spans) { return null }
- var out;
- for (var i = 0; i < spans.length; ++i) {
- if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
- else if (out) { out.push(spans[i]); }
- }
- return !out ? spans : out.length ? out : null
- }
-
- // Retrieve and filter the old marked spans stored in a change event.
- function getOldSpans(doc, change) {
- var found = change["spans_" + doc.id];
- if (!found) { return null }
- var nw = [];
- for (var i = 0; i < change.text.length; ++i)
- { nw.push(removeClearedSpans(found[i])); }
- return nw
- }
-
- // Used for un/re-doing changes from the history. Combines the
- // result of computing the existing spans with the set of spans that
- // existed in the history (so that deleting around a span and then
- // undoing brings back the span).
- function mergeOldSpans(doc, change) {
- var old = getOldSpans(doc, change);
- var stretched = stretchSpansOverChange(doc, change);
- if (!old) { return stretched }
- if (!stretched) { return old }
-
- for (var i = 0; i < old.length; ++i) {
- var oldCur = old[i], stretchCur = stretched[i];
- if (oldCur && stretchCur) {
- spans: for (var j = 0; j < stretchCur.length; ++j) {
- var span = stretchCur[j];
- for (var k = 0; k < oldCur.length; ++k)
- { if (oldCur[k].marker == span.marker) { continue spans } }
- oldCur.push(span);
- }
- } else if (stretchCur) {
- old[i] = stretchCur;
- }
- }
- return old
- }
-
- // Used both to provide a JSON-safe object in .getHistory, and, when
- // detaching a document, to split the history in two
- function copyHistoryArray(events, newGroup, instantiateSel) {
- var copy = [];
- for (var i = 0; i < events.length; ++i) {
- var event = events[i];
- if (event.ranges) {
- copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
- continue
- }
- var changes = event.changes, newChanges = [];
- copy.push({changes: newChanges});
- for (var j = 0; j < changes.length; ++j) {
- var change = changes[j], m = (void 0);
- newChanges.push({from: change.from, to: change.to, text: change.text});
- if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
- if (indexOf(newGroup, Number(m[1])) > -1) {
- lst(newChanges)[prop] = change[prop];
- delete change[prop];
- }
- } } }
- }
- }
- return copy
- }
-
- // The 'scroll' parameter given to many of these indicated whether
- // the new cursor position should be scrolled into view after
- // modifying the selection.
-
- // If shift is held or the extend flag is set, extends a range to
- // include a given position (and optionally a second position).
- // Otherwise, simply returns the range between the given positions.
- // Used for cursor motion and such.
- function extendRange(range, head, other, extend) {
- if (extend) {
- var anchor = range.anchor;
- if (other) {
- var posBefore = cmp(head, anchor) < 0;
- if (posBefore != (cmp(other, anchor) < 0)) {
- anchor = head;
- head = other;
- } else if (posBefore != (cmp(head, other) < 0)) {
- head = other;
- }
- }
- return new Range(anchor, head)
- } else {
- return new Range(other || head, head)
- }
- }
-
- // Extend the primary selection range, discard the rest.
- function extendSelection(doc, head, other, options, extend) {
- if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
- setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
- }
-
- // Extend all selections (pos is an array of selections with length
- // equal the number of selections)
- function extendSelections(doc, heads, options) {
- var out = [];
- var extend = doc.cm && (doc.cm.display.shift || doc.extend);
- for (var i = 0; i < doc.sel.ranges.length; i++)
- { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
- var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
- setSelection(doc, newSel, options);
- }
-
- // Updates a single range in the selection.
- function replaceOneSelection(doc, i, range, options) {
- var ranges = doc.sel.ranges.slice(0);
- ranges[i] = range;
- setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
- }
-
- // Reset the selection to a single range.
- function setSimpleSelection(doc, anchor, head, options) {
- setSelection(doc, simpleSelection(anchor, head), options);
- }
-
- // Give beforeSelectionChange handlers a change to influence a
- // selection update.
- function filterSelectionChange(doc, sel, options) {
- var obj = {
- ranges: sel.ranges,
- update: function(ranges) {
- this.ranges = [];
- for (var i = 0; i < ranges.length; i++)
- { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
- clipPos(doc, ranges[i].head)); }
- },
- origin: options && options.origin
- };
- signal(doc, "beforeSelectionChange", doc, obj);
- if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
- if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
- else { return sel }
- }
-
- function setSelectionReplaceHistory(doc, sel, options) {
- var done = doc.history.done, last = lst(done);
- if (last && last.ranges) {
- done[done.length - 1] = sel;
- setSelectionNoUndo(doc, sel, options);
- } else {
- setSelection(doc, sel, options);
- }
- }
-
- // Set a new selection.
- function setSelection(doc, sel, options) {
- setSelectionNoUndo(doc, sel, options);
- addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
- }
-
- function setSelectionNoUndo(doc, sel, options) {
- if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
- { sel = filterSelectionChange(doc, sel, options); }
-
- var bias = options && options.bias ||
- (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
- setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
-
- if (!(options && options.scroll === false) && doc.cm && doc.cm.getOption("readOnly") != "nocursor")
- { ensureCursorVisible(doc.cm); }
- }
-
- function setSelectionInner(doc, sel) {
- if (sel.equals(doc.sel)) { return }
-
- doc.sel = sel;
-
- if (doc.cm) {
- doc.cm.curOp.updateInput = 1;
- doc.cm.curOp.selectionChanged = true;
- signalCursorActivity(doc.cm);
- }
- signalLater(doc, "cursorActivity", doc);
- }
-
- // Verify that the selection does not partially select any atomic
- // marked ranges.
- function reCheckSelection(doc) {
- setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
- }
-
- // Return a selection that does not partially select any atomic
- // ranges.
- function skipAtomicInSelection(doc, sel, bias, mayClear) {
- var out;
- for (var i = 0; i < sel.ranges.length; i++) {
- var range = sel.ranges[i];
- var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
- var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
- var newHead = range.head == range.anchor ? newAnchor : skipAtomic(doc, range.head, old && old.head, bias, mayClear);
- if (out || newAnchor != range.anchor || newHead != range.head) {
- if (!out) { out = sel.ranges.slice(0, i); }
- out[i] = new Range(newAnchor, newHead);
- }
- }
- return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
- }
-
- function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
- var line = getLine(doc, pos.line);
- if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
- var sp = line.markedSpans[i], m = sp.marker;
-
- // Determine if we should prevent the cursor being placed to the left/right of an atomic marker
- // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
- // is with selectLeft/Right
- var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
- var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;
-
- if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
- (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
- if (mayClear) {
- signal(m, "beforeCursorEnter");
- if (m.explicitlyCleared) {
- if (!line.markedSpans) { break }
- else {--i; continue}
- }
- }
- if (!m.atomic) { continue }
-
- if (oldPos) {
- var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
- if (dir < 0 ? preventCursorRight : preventCursorLeft)
- { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
- if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
- { return skipAtomicInner(doc, near, pos, dir, mayClear) }
- }
-
- var far = m.find(dir < 0 ? -1 : 1);
- if (dir < 0 ? preventCursorLeft : preventCursorRight)
- { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
- return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
- }
- } }
- return pos
- }
-
- // Ensure a given position is not inside an atomic range.
- function skipAtomic(doc, pos, oldPos, bias, mayClear) {
- var dir = bias || 1;
- var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
- (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
- skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
- (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
- if (!found) {
- doc.cantEdit = true;
- return Pos(doc.first, 0)
- }
- return found
- }
-
- function movePos(doc, pos, dir, line) {
- if (dir < 0 && pos.ch == 0) {
- if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
- else { return null }
- } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
- if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
- else { return null }
- } else {
- return new Pos(pos.line, pos.ch + dir)
- }
- }
-
- function selectAll(cm) {
- cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
- }
-
- // UPDATING
-
- // Allow "beforeChange" event handlers to influence a change
- function filterChange(doc, change, update) {
- var obj = {
- canceled: false,
- from: change.from,
- to: change.to,
- text: change.text,
- origin: change.origin,
- cancel: function () { return obj.canceled = true; }
- };
- if (update) { obj.update = function (from, to, text, origin) {
- if (from) { obj.from = clipPos(doc, from); }
- if (to) { obj.to = clipPos(doc, to); }
- if (text) { obj.text = text; }
- if (origin !== undefined) { obj.origin = origin; }
- }; }
- signal(doc, "beforeChange", doc, obj);
- if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }
-
- if (obj.canceled) {
- if (doc.cm) { doc.cm.curOp.updateInput = 2; }
- return null
- }
- return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
- }
-
- // Apply a change to a document, and add it to the document's
- // history, and propagating it to all linked documents.
- function makeChange(doc, change, ignoreReadOnly) {
- if (doc.cm) {
- if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
- if (doc.cm.state.suppressEdits) { return }
- }
-
- if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
- change = filterChange(doc, change, true);
- if (!change) { return }
- }
-
- // Possibly split or suppress the update based on the presence
- // of read-only spans in its range.
- var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
- if (split) {
- for (var i = split.length - 1; i >= 0; --i)
- { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
- } else {
- makeChangeInner(doc, change);
- }
- }
-
- function makeChangeInner(doc, change) {
- if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
- var selAfter = computeSelAfterChange(doc, change);
- addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
-
- makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
- var rebased = [];
-
- linkedDocs(doc, function (doc, sharedHist) {
- if (!sharedHist && indexOf(rebased, doc.history) == -1) {
- rebaseHist(doc.history, change);
- rebased.push(doc.history);
- }
- makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
- });
- }
-
- // Revert a change stored in a document's history.
- function makeChangeFromHistory(doc, type, allowSelectionOnly) {
- var suppress = doc.cm && doc.cm.state.suppressEdits;
- if (suppress && !allowSelectionOnly) { return }
-
- var hist = doc.history, event, selAfter = doc.sel;
- var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
-
- // Verify that there is a useable event (so that ctrl-z won't
- // needlessly clear selection events)
- var i = 0;
- for (; i < source.length; i++) {
- event = source[i];
- if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
- { break }
- }
- if (i == source.length) { return }
- hist.lastOrigin = hist.lastSelOrigin = null;
-
- for (;;) {
- event = source.pop();
- if (event.ranges) {
- pushSelectionToHistory(event, dest);
- if (allowSelectionOnly && !event.equals(doc.sel)) {
- setSelection(doc, event, {clearRedo: false});
- return
- }
- selAfter = event;
- } else if (suppress) {
- source.push(event);
- return
- } else { break }
- }
-
- // Build up a reverse change object to add to the opposite history
- // stack (redo when undoing, and vice versa).
- var antiChanges = [];
- pushSelectionToHistory(selAfter, dest);
- dest.push({changes: antiChanges, generation: hist.generation});
- hist.generation = event.generation || ++hist.maxGeneration;
-
- var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
-
- var loop = function ( i ) {
- var change = event.changes[i];
- change.origin = type;
- if (filter && !filterChange(doc, change, false)) {
- source.length = 0;
- return {}
- }
-
- antiChanges.push(historyChangeFromChange(doc, change));
-
- var after = i ? computeSelAfterChange(doc, change) : lst(source);
- makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
- if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
- var rebased = [];
-
- // Propagate to the linked documents
- linkedDocs(doc, function (doc, sharedHist) {
- if (!sharedHist && indexOf(rebased, doc.history) == -1) {
- rebaseHist(doc.history, change);
- rebased.push(doc.history);
- }
- makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
- });
- };
-
- for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
- var returned = loop( i$1 );
-
- if ( returned ) return returned.v;
- }
- }
-
- // Sub-views need their line numbers shifted when text is added
- // above or below them in the parent document.
- function shiftDoc(doc, distance) {
- if (distance == 0) { return }
- doc.first += distance;
- doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
- Pos(range.anchor.line + distance, range.anchor.ch),
- Pos(range.head.line + distance, range.head.ch)
- ); }), doc.sel.primIndex);
- if (doc.cm) {
- regChange(doc.cm, doc.first, doc.first - distance, distance);
- for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
- { regLineChange(doc.cm, l, "gutter"); }
- }
- }
-
- // More lower-level change function, handling only a single document
- // (not linked ones).
- function makeChangeSingleDoc(doc, change, selAfter, spans) {
- if (doc.cm && !doc.cm.curOp)
- { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
-
- if (change.to.line < doc.first) {
- shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
- return
- }
- if (change.from.line > doc.lastLine()) { return }
-
- // Clip the change to the size of this doc
- if (change.from.line < doc.first) {
- var shift = change.text.length - 1 - (doc.first - change.from.line);
- shiftDoc(doc, shift);
- change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
- text: [lst(change.text)], origin: change.origin};
- }
- var last = doc.lastLine();
- if (change.to.line > last) {
- change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
- text: [change.text[0]], origin: change.origin};
- }
-
- change.removed = getBetween(doc, change.from, change.to);
-
- if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
- if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
- else { updateDoc(doc, change, spans); }
- setSelectionNoUndo(doc, selAfter, sel_dontScroll);
-
- if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
- { doc.cantEdit = false; }
- }
-
- // Handle the interaction of a change to a document with the editor
- // that this document is part of.
- function makeChangeSingleDocInEditor(cm, change, spans) {
- var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
-
- var recomputeMaxLength = false, checkWidthStart = from.line;
- if (!cm.options.lineWrapping) {
- checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
- doc.iter(checkWidthStart, to.line + 1, function (line) {
- if (line == display.maxLine) {
- recomputeMaxLength = true;
- return true
- }
- });
- }
-
- if (doc.sel.contains(change.from, change.to) > -1)
- { signalCursorActivity(cm); }
-
- updateDoc(doc, change, spans, estimateHeight(cm));
-
- if (!cm.options.lineWrapping) {
- doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
- var len = lineLength(line);
- if (len > display.maxLineLength) {
- display.maxLine = line;
- display.maxLineLength = len;
- display.maxLineChanged = true;
- recomputeMaxLength = false;
- }
- });
- if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
- }
-
- retreatFrontier(doc, from.line);
- startWorker(cm, 400);
-
- var lendiff = change.text.length - (to.line - from.line) - 1;
- // Remember that these lines changed, for updating the display
- if (change.full)
- { regChange(cm); }
- else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
- { regLineChange(cm, from.line, "text"); }
- else
- { regChange(cm, from.line, to.line + 1, lendiff); }
-
- var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
- if (changeHandler || changesHandler) {
- var obj = {
- from: from, to: to,
- text: change.text,
- removed: change.removed,
- origin: change.origin
- };
- if (changeHandler) { signalLater(cm, "change", cm, obj); }
- if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
- }
- cm.display.selForContextMenu = null;
- }
-
- function replaceRange(doc, code, from, to, origin) {
- var assign;
-
- if (!to) { to = from; }
- if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
- if (typeof code == "string") { code = doc.splitLines(code); }
- makeChange(doc, {from: from, to: to, text: code, origin: origin});
- }
-
- // Rebasing/resetting history to deal with externally-sourced changes
-
- function rebaseHistSelSingle(pos, from, to, diff) {
- if (to < pos.line) {
- pos.line += diff;
- } else if (from < pos.line) {
- pos.line = from;
- pos.ch = 0;
- }
- }
-
- // Tries to rebase an array of history events given a change in the
- // document. If the change touches the same lines as the event, the
- // event, and everything 'behind' it, is discarded. If the change is
- // before the event, the event's positions are updated. Uses a
- // copy-on-write scheme for the positions, to avoid having to
- // reallocate them all on every rebase, but also avoid problems with
- // shared position objects being unsafely updated.
- function rebaseHistArray(array, from, to, diff) {
- for (var i = 0; i < array.length; ++i) {
- var sub = array[i], ok = true;
- if (sub.ranges) {
- if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
- for (var j = 0; j < sub.ranges.length; j++) {
- rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
- rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
- }
- continue
- }
- for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
- var cur = sub.changes[j$1];
- if (to < cur.from.line) {
- cur.from = Pos(cur.from.line + diff, cur.from.ch);
- cur.to = Pos(cur.to.line + diff, cur.to.ch);
- } else if (from <= cur.to.line) {
- ok = false;
- break
- }
- }
- if (!ok) {
- array.splice(0, i + 1);
- i = 0;
- }
- }
- }
-
- function rebaseHist(hist, change) {
- var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
- rebaseHistArray(hist.done, from, to, diff);
- rebaseHistArray(hist.undone, from, to, diff);
- }
-
- // Utility for applying a change to a line by handle or number,
- // returning the number and optionally registering the line as
- // changed.
- function changeLine(doc, handle, changeType, op) {
- var no = handle, line = handle;
- if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
- else { no = lineNo(handle); }
- if (no == null) { return null }
- if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
- return line
- }
-
- // The document is represented as a BTree consisting of leaves, with
- // chunk of lines in them, and branches, with up to ten leaves or
- // other branch nodes below them. The top node is always a branch
- // node, and is the document object itself (meaning it has
- // additional methods and properties).
- //
- // All nodes have parent links. The tree is used both to go from
- // line numbers to line objects, and to go from objects to numbers.
- // It also indexes by height, and is used to convert between height
- // and line object, and to find the total height of the document.
- //
- // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
-
- function LeafChunk(lines) {
- this.lines = lines;
- this.parent = null;
- var height = 0;
- for (var i = 0; i < lines.length; ++i) {
- lines[i].parent = this;
- height += lines[i].height;
- }
- this.height = height;
- }
-
- LeafChunk.prototype = {
- chunkSize: function() { return this.lines.length },
-
- // Remove the n lines at offset 'at'.
- removeInner: function(at, n) {
- for (var i = at, e = at + n; i < e; ++i) {
- var line = this.lines[i];
- this.height -= line.height;
- cleanUpLine(line);
- signalLater(line, "delete");
- }
- this.lines.splice(at, n);
- },
-
- // Helper used to collapse a small branch into a single leaf.
- collapse: function(lines) {
- lines.push.apply(lines, this.lines);
- },
-
- // Insert the given array of lines at offset 'at', count them as
- // having the given height.
- insertInner: function(at, lines, height) {
- this.height += height;
- this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
- for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
- },
-
- // Used to iterate over a part of the tree.
- iterN: function(at, n, op) {
- for (var e = at + n; at < e; ++at)
- { if (op(this.lines[at])) { return true } }
- }
- };
-
- function BranchChunk(children) {
- this.children = children;
- var size = 0, height = 0;
- for (var i = 0; i < children.length; ++i) {
- var ch = children[i];
- size += ch.chunkSize(); height += ch.height;
- ch.parent = this;
- }
- this.size = size;
- this.height = height;
- this.parent = null;
- }
-
- BranchChunk.prototype = {
- chunkSize: function() { return this.size },
-
- removeInner: function(at, n) {
- this.size -= n;
- for (var i = 0; i < this.children.length; ++i) {
- var child = this.children[i], sz = child.chunkSize();
- if (at < sz) {
- var rm = Math.min(n, sz - at), oldHeight = child.height;
- child.removeInner(at, rm);
- this.height -= oldHeight - child.height;
- if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
- if ((n -= rm) == 0) { break }
- at = 0;
- } else { at -= sz; }
- }
- // If the result is smaller than 25 lines, ensure that it is a
- // single leaf node.
- if (this.size - n < 25 &&
- (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
- var lines = [];
- this.collapse(lines);
- this.children = [new LeafChunk(lines)];
- this.children[0].parent = this;
- }
- },
-
- collapse: function(lines) {
- for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
- },
-
- insertInner: function(at, lines, height) {
- this.size += lines.length;
- this.height += height;
- for (var i = 0; i < this.children.length; ++i) {
- var child = this.children[i], sz = child.chunkSize();
- if (at <= sz) {
- child.insertInner(at, lines, height);
- if (child.lines && child.lines.length > 50) {
- // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
- // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
- var remaining = child.lines.length % 25 + 25;
- for (var pos = remaining; pos < child.lines.length;) {
- var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
- child.height -= leaf.height;
- this.children.splice(++i, 0, leaf);
- leaf.parent = this;
- }
- child.lines = child.lines.slice(0, remaining);
- this.maybeSpill();
- }
- break
- }
- at -= sz;
- }
- },
-
- // When a node has grown, check whether it should be split.
- maybeSpill: function() {
- if (this.children.length <= 10) { return }
- var me = this;
- do {
- var spilled = me.children.splice(me.children.length - 5, 5);
- var sibling = new BranchChunk(spilled);
- if (!me.parent) { // Become the parent node
- var copy = new BranchChunk(me.children);
- copy.parent = me;
- me.children = [copy, sibling];
- me = copy;
- } else {
- me.size -= sibling.size;
- me.height -= sibling.height;
- var myIndex = indexOf(me.parent.children, me);
- me.parent.children.splice(myIndex + 1, 0, sibling);
- }
- sibling.parent = me.parent;
- } while (me.children.length > 10)
- me.parent.maybeSpill();
- },
-
- iterN: function(at, n, op) {
- for (var i = 0; i < this.children.length; ++i) {
- var child = this.children[i], sz = child.chunkSize();
- if (at < sz) {
- var used = Math.min(n, sz - at);
- if (child.iterN(at, used, op)) { return true }
- if ((n -= used) == 0) { break }
- at = 0;
- } else { at -= sz; }
- }
- }
- };
-
- // Line widgets are block elements displayed above or below a line.
-
- var LineWidget = function(doc, node, options) {
- if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
- { this[opt] = options[opt]; } } }
- this.doc = doc;
- this.node = node;
- };
-
- LineWidget.prototype.clear = function () {
- var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
- if (no == null || !ws) { return }
- for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
- if (!ws.length) { line.widgets = null; }
- var height = widgetHeight(this);
- updateLineHeight(line, Math.max(0, line.height - height));
- if (cm) {
- runInOp(cm, function () {
- adjustScrollWhenAboveVisible(cm, line, -height);
- regLineChange(cm, no, "widget");
- });
- signalLater(cm, "lineWidgetCleared", cm, this, no);
- }
- };
-
- LineWidget.prototype.changed = function () {
- var this$1 = this;
-
- var oldH = this.height, cm = this.doc.cm, line = this.line;
- this.height = null;
- var diff = widgetHeight(this) - oldH;
- if (!diff) { return }
- if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
- if (cm) {
- runInOp(cm, function () {
- cm.curOp.forceUpdate = true;
- adjustScrollWhenAboveVisible(cm, line, diff);
- signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
- });
- }
- };
- eventMixin(LineWidget);
-
- function adjustScrollWhenAboveVisible(cm, line, diff) {
- if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
- { addToScrollTop(cm, diff); }
- }
-
- function addLineWidget(doc, handle, node, options) {
- var widget = new LineWidget(doc, node, options);
- var cm = doc.cm;
- if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
- changeLine(doc, handle, "widget", function (line) {
- var widgets = line.widgets || (line.widgets = []);
- if (widget.insertAt == null) { widgets.push(widget); }
- else { widgets.splice(Math.min(widgets.length, Math.max(0, widget.insertAt)), 0, widget); }
- widget.line = line;
- if (cm && !lineIsHidden(doc, line)) {
- var aboveVisible = heightAtLine(line) < doc.scrollTop;
- updateLineHeight(line, line.height + widgetHeight(widget));
- if (aboveVisible) { addToScrollTop(cm, widget.height); }
- cm.curOp.forceUpdate = true;
- }
- return true
- });
- if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
- return widget
- }
-
- // TEXTMARKERS
-
- // Created with markText and setBookmark methods. A TextMarker is a
- // handle that can be used to clear or find a marked position in the
- // document. Line objects hold arrays (markedSpans) containing
- // {from, to, marker} object pointing to such marker objects, and
- // indicating that such a marker is present on that line. Multiple
- // lines may point to the same marker when it spans across lines.
- // The spans will have null for their from/to properties when the
- // marker continues beyond the start/end of the line. Markers have
- // links back to the lines they currently touch.
-
- // Collapsed markers have unique ids, in order to be able to order
- // them, which is needed for uniquely determining an outer marker
- // when they overlap (they may nest, but not partially overlap).
- var nextMarkerId = 0;
-
- var TextMarker = function(doc, type) {
- this.lines = [];
- this.type = type;
- this.doc = doc;
- this.id = ++nextMarkerId;
- };
-
- // Clear the marker.
- TextMarker.prototype.clear = function () {
- if (this.explicitlyCleared) { return }
- var cm = this.doc.cm, withOp = cm && !cm.curOp;
- if (withOp) { startOperation(cm); }
- if (hasHandler(this, "clear")) {
- var found = this.find();
- if (found) { signalLater(this, "clear", found.from, found.to); }
- }
- var min = null, max = null;
- for (var i = 0; i < this.lines.length; ++i) {
- var line = this.lines[i];
- var span = getMarkedSpanFor(line.markedSpans, this);
- if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
- else if (cm) {
- if (span.to != null) { max = lineNo(line); }
- if (span.from != null) { min = lineNo(line); }
- }
- line.markedSpans = removeMarkedSpan(line.markedSpans, span);
- if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
- { updateLineHeight(line, textHeight(cm.display)); }
- }
- if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
- var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
- if (len > cm.display.maxLineLength) {
- cm.display.maxLine = visual;
- cm.display.maxLineLength = len;
- cm.display.maxLineChanged = true;
- }
- } }
-
- if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
- this.lines.length = 0;
- this.explicitlyCleared = true;
- if (this.atomic && this.doc.cantEdit) {
- this.doc.cantEdit = false;
- if (cm) { reCheckSelection(cm.doc); }
- }
- if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
- if (withOp) { endOperation(cm); }
- if (this.parent) { this.parent.clear(); }
- };
-
- // Find the position of the marker in the document. Returns a {from,
- // to} object by default. Side can be passed to get a specific side
- // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
- // Pos objects returned contain a line object, rather than a line
- // number (used to prevent looking up the same line twice).
- TextMarker.prototype.find = function (side, lineObj) {
- if (side == null && this.type == "bookmark") { side = 1; }
- var from, to;
- for (var i = 0; i < this.lines.length; ++i) {
- var line = this.lines[i];
- var span = getMarkedSpanFor(line.markedSpans, this);
- if (span.from != null) {
- from = Pos(lineObj ? line : lineNo(line), span.from);
- if (side == -1) { return from }
- }
- if (span.to != null) {
- to = Pos(lineObj ? line : lineNo(line), span.to);
- if (side == 1) { return to }
- }
- }
- return from && {from: from, to: to}
- };
-
- // Signals that the marker's widget changed, and surrounding layout
- // should be recomputed.
- TextMarker.prototype.changed = function () {
- var this$1 = this;
-
- var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
- if (!pos || !cm) { return }
- runInOp(cm, function () {
- var line = pos.line, lineN = lineNo(pos.line);
- var view = findViewForLine(cm, lineN);
- if (view) {
- clearLineMeasurementCacheFor(view);
- cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
- }
- cm.curOp.updateMaxLine = true;
- if (!lineIsHidden(widget.doc, line) && widget.height != null) {
- var oldHeight = widget.height;
- widget.height = null;
- var dHeight = widgetHeight(widget) - oldHeight;
- if (dHeight)
- { updateLineHeight(line, line.height + dHeight); }
- }
- signalLater(cm, "markerChanged", cm, this$1);
- });
- };
-
- TextMarker.prototype.attachLine = function (line) {
- if (!this.lines.length && this.doc.cm) {
- var op = this.doc.cm.curOp;
- if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
- { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
- }
- this.lines.push(line);
- };
-
- TextMarker.prototype.detachLine = function (line) {
- this.lines.splice(indexOf(this.lines, line), 1);
- if (!this.lines.length && this.doc.cm) {
- var op = this.doc.cm.curOp
- ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
- }
- };
- eventMixin(TextMarker);
-
- // Create a marker, wire it up to the right lines, and
- function markText(doc, from, to, options, type) {
- // Shared markers (across linked documents) are handled separately
- // (markTextShared will call out to this again, once per
- // document).
- if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
- // Ensure we are in an operation.
- if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
-
- var marker = new TextMarker(doc, type), diff = cmp(from, to);
- if (options) { copyObj(options, marker, false); }
- // Don't connect empty markers unless clearWhenEmpty is false
- if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
- { return marker }
- if (marker.replacedWith) {
- // Showing up as a widget implies collapsed (widget replaces text)
- marker.collapsed = true;
- marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
- if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
- if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
- }
- if (marker.collapsed) {
- if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
- from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
- { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
- seeCollapsedSpans();
- }
-
- if (marker.addToHistory)
- { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }
-
- var curLine = from.line, cm = doc.cm, updateMaxLine;
- doc.iter(curLine, to.line + 1, function (line) {
- if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
- { updateMaxLine = true; }
- if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
- addMarkedSpan(line, new MarkedSpan(marker,
- curLine == from.line ? from.ch : null,
- curLine == to.line ? to.ch : null), doc.cm && doc.cm.curOp);
- ++curLine;
- });
- // lineIsHidden depends on the presence of the spans, so needs a second pass
- if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
- if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
- }); }
-
- if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }
-
- if (marker.readOnly) {
- seeReadOnlySpans();
- if (doc.history.done.length || doc.history.undone.length)
- { doc.clearHistory(); }
- }
- if (marker.collapsed) {
- marker.id = ++nextMarkerId;
- marker.atomic = true;
- }
- if (cm) {
- // Sync editor state
- if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
- if (marker.collapsed)
- { regChange(cm, from.line, to.line + 1); }
- else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
- marker.attributes || marker.title)
- { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
- if (marker.atomic) { reCheckSelection(cm.doc); }
- signalLater(cm, "markerAdded", cm, marker);
- }
- return marker
- }
-
- // SHARED TEXTMARKERS
-
- // A shared marker spans multiple linked documents. It is
- // implemented as a meta-marker-object controlling multiple normal
- // markers.
- var SharedTextMarker = function(markers, primary) {
- this.markers = markers;
- this.primary = primary;
- for (var i = 0; i < markers.length; ++i)
- { markers[i].parent = this; }
- };
-
- SharedTextMarker.prototype.clear = function () {
- if (this.explicitlyCleared) { return }
- this.explicitlyCleared = true;
- for (var i = 0; i < this.markers.length; ++i)
- { this.markers[i].clear(); }
- signalLater(this, "clear");
- };
-
- SharedTextMarker.prototype.find = function (side, lineObj) {
- return this.primary.find(side, lineObj)
- };
- eventMixin(SharedTextMarker);
-
- function markTextShared(doc, from, to, options, type) {
- options = copyObj(options);
- options.shared = false;
- var markers = [markText(doc, from, to, options, type)], primary = markers[0];
- var widget = options.widgetNode;
- linkedDocs(doc, function (doc) {
- if (widget) { options.widgetNode = widget.cloneNode(true); }
- markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
- for (var i = 0; i < doc.linked.length; ++i)
- { if (doc.linked[i].isParent) { return } }
- primary = lst(markers);
- });
- return new SharedTextMarker(markers, primary)
- }
-
- function findSharedMarkers(doc) {
- return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
- }
-
- function copySharedMarkers(doc, markers) {
- for (var i = 0; i < markers.length; i++) {
- var marker = markers[i], pos = marker.find();
- var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
- if (cmp(mFrom, mTo)) {
- var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
- marker.markers.push(subMark);
- subMark.parent = marker;
- }
- }
- }
-
- function detachSharedMarkers(markers) {
- var loop = function ( i ) {
- var marker = markers[i], linked = [marker.primary.doc];
- linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
- for (var j = 0; j < marker.markers.length; j++) {
- var subMarker = marker.markers[j];
- if (indexOf(linked, subMarker.doc) == -1) {
- subMarker.parent = null;
- marker.markers.splice(j--, 1);
- }
- }
- };
-
- for (var i = 0; i < markers.length; i++) loop( i );
- }
-
- var nextDocId = 0;
- var Doc = function(text, mode, firstLine, lineSep, direction) {
- if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
- if (firstLine == null) { firstLine = 0; }
-
- BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
- this.first = firstLine;
- this.scrollTop = this.scrollLeft = 0;
- this.cantEdit = false;
- this.cleanGeneration = 1;
- this.modeFrontier = this.highlightFrontier = firstLine;
- var start = Pos(firstLine, 0);
- this.sel = simpleSelection(start);
- this.history = new History(null);
- this.id = ++nextDocId;
- this.modeOption = mode;
- this.lineSep = lineSep;
- this.direction = (direction == "rtl") ? "rtl" : "ltr";
- this.extend = false;
-
- if (typeof text == "string") { text = this.splitLines(text); }
- updateDoc(this, {from: start, to: start, text: text});
- setSelection(this, simpleSelection(start), sel_dontScroll);
- };
-
- Doc.prototype = createObj(BranchChunk.prototype, {
- constructor: Doc,
- // Iterate over the document. Supports two forms -- with only one
- // argument, it calls that for each line in the document. With
- // three, it iterates over the range given by the first two (with
- // the second being non-inclusive).
- iter: function(from, to, op) {
- if (op) { this.iterN(from - this.first, to - from, op); }
- else { this.iterN(this.first, this.first + this.size, from); }
- },
-
- // Non-public interface for adding and removing lines.
- insert: function(at, lines) {
- var height = 0;
- for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
- this.insertInner(at - this.first, lines, height);
- },
- remove: function(at, n) { this.removeInner(at - this.first, n); },
-
- // From here, the methods are part of the public interface. Most
- // are also available from CodeMirror (editor) instances.
-
- getValue: function(lineSep) {
- var lines = getLines(this, this.first, this.first + this.size);
- if (lineSep === false) { return lines }
- return lines.join(lineSep || this.lineSeparator())
- },
- setValue: docMethodOp(function(code) {
- var top = Pos(this.first, 0), last = this.first + this.size - 1;
- makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
- text: this.splitLines(code), origin: "setValue", full: true}, true);
- if (this.cm) { scrollToCoords(this.cm, 0, 0); }
- setSelection(this, simpleSelection(top), sel_dontScroll);
- }),
- replaceRange: function(code, from, to, origin) {
- from = clipPos(this, from);
- to = to ? clipPos(this, to) : from;
- replaceRange(this, code, from, to, origin);
- },
- getRange: function(from, to, lineSep) {
- var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
- if (lineSep === false) { return lines }
- if (lineSep === '') { return lines.join('') }
- return lines.join(lineSep || this.lineSeparator())
- },
-
- getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
-
- getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
- getLineNumber: function(line) {return lineNo(line)},
-
- getLineHandleVisualStart: function(line) {
- if (typeof line == "number") { line = getLine(this, line); }
- return visualLine(line)
- },
-
- lineCount: function() {return this.size},
- firstLine: function() {return this.first},
- lastLine: function() {return this.first + this.size - 1},
-
- clipPos: function(pos) {return clipPos(this, pos)},
-
- getCursor: function(start) {
- var range = this.sel.primary(), pos;
- if (start == null || start == "head") { pos = range.head; }
- else if (start == "anchor") { pos = range.anchor; }
- else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
- else { pos = range.from(); }
- return pos
- },
- listSelections: function() { return this.sel.ranges },
- somethingSelected: function() {return this.sel.somethingSelected()},
-
- setCursor: docMethodOp(function(line, ch, options) {
- setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
- }),
- setSelection: docMethodOp(function(anchor, head, options) {
- setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
- }),
- extendSelection: docMethodOp(function(head, other, options) {
- extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
- }),
- extendSelections: docMethodOp(function(heads, options) {
- extendSelections(this, clipPosArray(this, heads), options);
- }),
- extendSelectionsBy: docMethodOp(function(f, options) {
- var heads = map(this.sel.ranges, f);
- extendSelections(this, clipPosArray(this, heads), options);
- }),
- setSelections: docMethodOp(function(ranges, primary, options) {
- if (!ranges.length) { return }
- var out = [];
- for (var i = 0; i < ranges.length; i++)
- { out[i] = new Range(clipPos(this, ranges[i].anchor),
- clipPos(this, ranges[i].head || ranges[i].anchor)); }
- if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
- setSelection(this, normalizeSelection(this.cm, out, primary), options);
- }),
- addSelection: docMethodOp(function(anchor, head, options) {
- var ranges = this.sel.ranges.slice(0);
- ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
- setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
- }),
-
- getSelection: function(lineSep) {
- var ranges = this.sel.ranges, lines;
- for (var i = 0; i < ranges.length; i++) {
- var sel = getBetween(this, ranges[i].from(), ranges[i].to());
- lines = lines ? lines.concat(sel) : sel;
- }
- if (lineSep === false) { return lines }
- else { return lines.join(lineSep || this.lineSeparator()) }
- },
- getSelections: function(lineSep) {
- var parts = [], ranges = this.sel.ranges;
- for (var i = 0; i < ranges.length; i++) {
- var sel = getBetween(this, ranges[i].from(), ranges[i].to());
- if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
- parts[i] = sel;
- }
- return parts
- },
- replaceSelection: function(code, collapse, origin) {
- var dup = [];
- for (var i = 0; i < this.sel.ranges.length; i++)
- { dup[i] = code; }
- this.replaceSelections(dup, collapse, origin || "+input");
- },
- replaceSelections: docMethodOp(function(code, collapse, origin) {
- var changes = [], sel = this.sel;
- for (var i = 0; i < sel.ranges.length; i++) {
- var range = sel.ranges[i];
- changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
- }
- var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
- for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
- { makeChange(this, changes[i$1]); }
- if (newSel) { setSelectionReplaceHistory(this, newSel); }
- else if (this.cm) { ensureCursorVisible(this.cm); }
- }),
- undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
- redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
- undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
- redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
-
- setExtending: function(val) {this.extend = val;},
- getExtending: function() {return this.extend},
-
- historySize: function() {
- var hist = this.history, done = 0, undone = 0;
- for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
- for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
- return {undo: done, redo: undone}
- },
- clearHistory: function() {
- var this$1 = this;
-
- this.history = new History(this.history);
- linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
- },
-
- markClean: function() {
- this.cleanGeneration = this.changeGeneration(true);
- },
- changeGeneration: function(forceSplit) {
- if (forceSplit)
- { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
- return this.history.generation
- },
- isClean: function (gen) {
- return this.history.generation == (gen || this.cleanGeneration)
- },
-
- getHistory: function() {
- return {done: copyHistoryArray(this.history.done),
- undone: copyHistoryArray(this.history.undone)}
- },
- setHistory: function(histData) {
- var hist = this.history = new History(this.history);
- hist.done = copyHistoryArray(histData.done.slice(0), null, true);
- hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
- },
-
- setGutterMarker: docMethodOp(function(line, gutterID, value) {
- return changeLine(this, line, "gutter", function (line) {
- var markers = line.gutterMarkers || (line.gutterMarkers = {});
- markers[gutterID] = value;
- if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
- return true
- })
- }),
-
- clearGutter: docMethodOp(function(gutterID) {
- var this$1 = this;
-
- this.iter(function (line) {
- if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
- changeLine(this$1, line, "gutter", function () {
- line.gutterMarkers[gutterID] = null;
- if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
- return true
- });
- }
- });
- }),
-
- lineInfo: function(line) {
- var n;
- if (typeof line == "number") {
- if (!isLine(this, line)) { return null }
- n = line;
- line = getLine(this, line);
- if (!line) { return null }
- } else {
- n = lineNo(line);
- if (n == null) { return null }
- }
- return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
- textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
- widgets: line.widgets}
- },
-
- addLineClass: docMethodOp(function(handle, where, cls) {
- return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
- var prop = where == "text" ? "textClass"
- : where == "background" ? "bgClass"
- : where == "gutter" ? "gutterClass" : "wrapClass";
- if (!line[prop]) { line[prop] = cls; }
- else if (classTest(cls).test(line[prop])) { return false }
- else { line[prop] += " " + cls; }
- return true
- })
- }),
- removeLineClass: docMethodOp(function(handle, where, cls) {
- return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
- var prop = where == "text" ? "textClass"
- : where == "background" ? "bgClass"
- : where == "gutter" ? "gutterClass" : "wrapClass";
- var cur = line[prop];
- if (!cur) { return false }
- else if (cls == null) { line[prop] = null; }
- else {
- var found = cur.match(classTest(cls));
- if (!found) { return false }
- var end = found.index + found[0].length;
- line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
- }
- return true
- })
- }),
-
- addLineWidget: docMethodOp(function(handle, node, options) {
- return addLineWidget(this, handle, node, options)
- }),
- removeLineWidget: function(widget) { widget.clear(); },
-
- markText: function(from, to, options) {
- return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
- },
- setBookmark: function(pos, options) {
- var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
- insertLeft: options && options.insertLeft,
- clearWhenEmpty: false, shared: options && options.shared,
- handleMouseEvents: options && options.handleMouseEvents};
- pos = clipPos(this, pos);
- return markText(this, pos, pos, realOpts, "bookmark")
- },
- findMarksAt: function(pos) {
- pos = clipPos(this, pos);
- var markers = [], spans = getLine(this, pos.line).markedSpans;
- if (spans) { for (var i = 0; i < spans.length; ++i) {
- var span = spans[i];
- if ((span.from == null || span.from <= pos.ch) &&
- (span.to == null || span.to >= pos.ch))
- { markers.push(span.marker.parent || span.marker); }
- } }
- return markers
- },
- findMarks: function(from, to, filter) {
- from = clipPos(this, from); to = clipPos(this, to);
- var found = [], lineNo = from.line;
- this.iter(from.line, to.line + 1, function (line) {
- var spans = line.markedSpans;
- if (spans) { for (var i = 0; i < spans.length; i++) {
- var span = spans[i];
- if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
- span.from == null && lineNo != from.line ||
- span.from != null && lineNo == to.line && span.from >= to.ch) &&
- (!filter || filter(span.marker)))
- { found.push(span.marker.parent || span.marker); }
- } }
- ++lineNo;
- });
- return found
- },
- getAllMarks: function() {
- var markers = [];
- this.iter(function (line) {
- var sps = line.markedSpans;
- if (sps) { for (var i = 0; i < sps.length; ++i)
- { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
- });
- return markers
- },
-
- posFromIndex: function(off) {
- var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
- this.iter(function (line) {
- var sz = line.text.length + sepSize;
- if (sz > off) { ch = off; return true }
- off -= sz;
- ++lineNo;
- });
- return clipPos(this, Pos(lineNo, ch))
- },
- indexFromPos: function (coords) {
- coords = clipPos(this, coords);
- var index = coords.ch;
- if (coords.line < this.first || coords.ch < 0) { return 0 }
- var sepSize = this.lineSeparator().length;
- this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
- index += line.text.length + sepSize;
- });
- return index
- },
-
- copy: function(copyHistory) {
- var doc = new Doc(getLines(this, this.first, this.first + this.size),
- this.modeOption, this.first, this.lineSep, this.direction);
- doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
- doc.sel = this.sel;
- doc.extend = false;
- if (copyHistory) {
- doc.history.undoDepth = this.history.undoDepth;
- doc.setHistory(this.getHistory());
- }
- return doc
- },
-
- linkedDoc: function(options) {
- if (!options) { options = {}; }
- var from = this.first, to = this.first + this.size;
- if (options.from != null && options.from > from) { from = options.from; }
- if (options.to != null && options.to < to) { to = options.to; }
- var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
- if (options.sharedHist) { copy.history = this.history
- ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
- copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
- copySharedMarkers(copy, findSharedMarkers(this));
- return copy
- },
- unlinkDoc: function(other) {
- if (other instanceof CodeMirror) { other = other.doc; }
- if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
- var link = this.linked[i];
- if (link.doc != other) { continue }
- this.linked.splice(i, 1);
- other.unlinkDoc(this);
- detachSharedMarkers(findSharedMarkers(this));
- break
- } }
- // If the histories were shared, split them again
- if (other.history == this.history) {
- var splitIds = [other.id];
- linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
- other.history = new History(null);
- other.history.done = copyHistoryArray(this.history.done, splitIds);
- other.history.undone = copyHistoryArray(this.history.undone, splitIds);
- }
- },
- iterLinkedDocs: function(f) {linkedDocs(this, f);},
-
- getMode: function() {return this.mode},
- getEditor: function() {return this.cm},
-
- splitLines: function(str) {
- if (this.lineSep) { return str.split(this.lineSep) }
- return splitLinesAuto(str)
- },
- lineSeparator: function() { return this.lineSep || "\n" },
-
- setDirection: docMethodOp(function (dir) {
- if (dir != "rtl") { dir = "ltr"; }
- if (dir == this.direction) { return }
- this.direction = dir;
- this.iter(function (line) { return line.order = null; });
- if (this.cm) { directionChanged(this.cm); }
- })
- });
-
- // Public alias.
- Doc.prototype.eachLine = Doc.prototype.iter;
-
- // Kludge to work around strange IE behavior where it'll sometimes
- // re-fire a series of drag-related events right after the drop (#1551)
- var lastDrop = 0;
-
- function onDrop(e) {
- var cm = this;
- clearDragCursor(cm);
- if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
- { return }
- e_preventDefault(e);
- if (ie) { lastDrop = +new Date; }
- var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
- if (!pos || cm.isReadOnly()) { return }
- // Might be a file drop, in which case we simply extract the text
- // and insert it.
- if (files && files.length && window.FileReader && window.File) {
- var n = files.length, text = Array(n), read = 0;
- var markAsReadAndPasteIfAllFilesAreRead = function () {
- if (++read == n) {
- operation(cm, function () {
- pos = clipPos(cm.doc, pos);
- var change = {from: pos, to: pos,
- text: cm.doc.splitLines(
- text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
- origin: "paste"};
- makeChange(cm.doc, change);
- setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
- })();
- }
- };
- var readTextFromFile = function (file, i) {
- if (cm.options.allowDropFileTypes &&
- indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
- markAsReadAndPasteIfAllFilesAreRead();
- return
- }
- var reader = new FileReader;
- reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
- reader.onload = function () {
- var content = reader.result;
- if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
- markAsReadAndPasteIfAllFilesAreRead();
- return
- }
- text[i] = content;
- markAsReadAndPasteIfAllFilesAreRead();
- };
- reader.readAsText(file);
- };
- for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
- } else { // Normal drop
- // Don't do a replace if the drop happened inside of the selected text.
- if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
- cm.state.draggingText(e);
- // Ensure the editor is re-focused
- setTimeout(function () { return cm.display.input.focus(); }, 20);
- return
- }
- try {
- var text$1 = e.dataTransfer.getData("Text");
- if (text$1) {
- var selected;
- if (cm.state.draggingText && !cm.state.draggingText.copy)
- { selected = cm.listSelections(); }
- setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
- if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
- { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
- cm.replaceSelection(text$1, "around", "paste");
- cm.display.input.focus();
- }
- }
- catch(e$1){}
- }
- }
-
- function onDragStart(cm, e) {
- if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
- if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
-
- e.dataTransfer.setData("Text", cm.getSelection());
- e.dataTransfer.effectAllowed = "copyMove";
-
- // Use dummy image instead of default browsers image.
- // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
- if (e.dataTransfer.setDragImage && !safari) {
- var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
- img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
- if (presto) {
- img.width = img.height = 1;
- cm.display.wrapper.appendChild(img);
- // Force a relayout, or Opera won't use our image for some obscure reason
- img._top = img.offsetTop;
- }
- e.dataTransfer.setDragImage(img, 0, 0);
- if (presto) { img.parentNode.removeChild(img); }
- }
- }
-
- function onDragOver(cm, e) {
- var pos = posFromMouse(cm, e);
- if (!pos) { return }
- var frag = document.createDocumentFragment();
- drawSelectionCursor(cm, pos, frag);
- if (!cm.display.dragCursor) {
- cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
- cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
- }
- removeChildrenAndAdd(cm.display.dragCursor, frag);
- }
-
- function clearDragCursor(cm) {
- if (cm.display.dragCursor) {
- cm.display.lineSpace.removeChild(cm.display.dragCursor);
- cm.display.dragCursor = null;
- }
- }
-
- // These must be handled carefully, because naively registering a
- // handler for each editor will cause the editors to never be
- // garbage collected.
-
- function forEachCodeMirror(f) {
- if (!document.getElementsByClassName) { return }
- var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
- for (var i = 0; i < byClass.length; i++) {
- var cm = byClass[i].CodeMirror;
- if (cm) { editors.push(cm); }
- }
- if (editors.length) { editors[0].operation(function () {
- for (var i = 0; i < editors.length; i++) { f(editors[i]); }
- }); }
- }
-
- var globalsRegistered = false;
- function ensureGlobalHandlers() {
- if (globalsRegistered) { return }
- registerGlobalHandlers();
- globalsRegistered = true;
- }
- function registerGlobalHandlers() {
- // When the window resizes, we need to refresh active editors.
- var resizeTimer;
- on(window, "resize", function () {
- if (resizeTimer == null) { resizeTimer = setTimeout(function () {
- resizeTimer = null;
- forEachCodeMirror(onResize);
- }, 100); }
- });
- // When the window loses focus, we want to show the editor as blurred
- on(window, "blur", function () { return forEachCodeMirror(onBlur); });
- }
- // Called when the window resizes
- function onResize(cm) {
- var d = cm.display;
- // Might be a text scaling operation, clear size caches.
- d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
- d.scrollbarsClipped = false;
- cm.setSize();
- }
-
- var keyNames = {
- 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
- 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
- 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
- 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
- 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
- 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
- 221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
- 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
- };
-
- // Number keys
- for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
- // Alphabetic keys
- for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
- // Function keys
- for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }
-
- var keyMap = {};
-
- keyMap.basic = {
- "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
- "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
- "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
- "Tab": "defaultTab", "Shift-Tab": "indentAuto",
- "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
- "Esc": "singleSelection"
- };
- // Note that the save and find-related commands aren't defined by
- // default. User code or addons can define them. Unknown commands
- // are simply ignored.
- keyMap.pcDefault = {
- "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
- "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
- "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
- "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
- "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
- "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
- "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
- "fallthrough": "basic"
- };
- // Very basic readline/emacs-style bindings, which are standard on Mac.
- keyMap.emacsy = {
- "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
- "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp",
- "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine",
- "Ctrl-T": "transposeChars", "Ctrl-O": "openLine"
- };
- keyMap.macDefault = {
- "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
- "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
- "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
- "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
- "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
- "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
- "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
- "fallthrough": ["basic", "emacsy"]
- };
- keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
-
- // KEYMAP DISPATCH
-
- function normalizeKeyName(name) {
- var parts = name.split(/-(?!$)/);
- name = parts[parts.length - 1];
- var alt, ctrl, shift, cmd;
- for (var i = 0; i < parts.length - 1; i++) {
- var mod = parts[i];
- if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
- else if (/^a(lt)?$/i.test(mod)) { alt = true; }
- else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
- else if (/^s(hift)?$/i.test(mod)) { shift = true; }
- else { throw new Error("Unrecognized modifier name: " + mod) }
- }
- if (alt) { name = "Alt-" + name; }
- if (ctrl) { name = "Ctrl-" + name; }
- if (cmd) { name = "Cmd-" + name; }
- if (shift) { name = "Shift-" + name; }
- return name
- }
-
- // This is a kludge to keep keymaps mostly working as raw objects
- // (backwards compatibility) while at the same time support features
- // like normalization and multi-stroke key bindings. It compiles a
- // new normalized keymap, and then updates the old object to reflect
- // this.
- function normalizeKeyMap(keymap) {
- var copy = {};
- for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
- var value = keymap[keyname];
- if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
- if (value == "...") { delete keymap[keyname]; continue }
-
- var keys = map(keyname.split(" "), normalizeKeyName);
- for (var i = 0; i < keys.length; i++) {
- var val = (void 0), name = (void 0);
- if (i == keys.length - 1) {
- name = keys.join(" ");
- val = value;
- } else {
- name = keys.slice(0, i + 1).join(" ");
- val = "...";
- }
- var prev = copy[name];
- if (!prev) { copy[name] = val; }
- else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
- }
- delete keymap[keyname];
- } }
- for (var prop in copy) { keymap[prop] = copy[prop]; }
- return keymap
- }
-
- function lookupKey(key, map, handle, context) {
- map = getKeyMap(map);
- var found = map.call ? map.call(key, context) : map[key];
- if (found === false) { return "nothing" }
- if (found === "...") { return "multi" }
- if (found != null && handle(found)) { return "handled" }
-
- if (map.fallthrough) {
- if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
- { return lookupKey(key, map.fallthrough, handle, context) }
- for (var i = 0; i < map.fallthrough.length; i++) {
- var result = lookupKey(key, map.fallthrough[i], handle, context);
- if (result) { return result }
- }
- }
- }
-
- // Modifier key presses don't count as 'real' key presses for the
- // purpose of keymap fallthrough.
- function isModifierKey(value) {
- var name = typeof value == "string" ? value : keyNames[value.keyCode];
- return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
- }
-
- function addModifierNames(name, event, noShift) {
- var base = name;
- if (event.altKey && base != "Alt") { name = "Alt-" + name; }
- if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
- if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; }
- if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
- return name
- }
-
- // Look up the name of a key as indicated by an event object.
- function keyName(event, noShift) {
- if (presto && event.keyCode == 34 && event["char"]) { return false }
- var name = keyNames[event.keyCode];
- if (name == null || event.altGraphKey) { return false }
- // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
- // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
- if (event.keyCode == 3 && event.code) { name = event.code; }
- return addModifierNames(name, event, noShift)
- }
-
- function getKeyMap(val) {
- return typeof val == "string" ? keyMap[val] : val
- }
-
- // Helper for deleting text near the selection(s), used to implement
- // backspace, delete, and similar functionality.
- function deleteNearSelection(cm, compute) {
- var ranges = cm.doc.sel.ranges, kill = [];
- // Build up a set of ranges to kill first, merging overlapping
- // ranges.
- for (var i = 0; i < ranges.length; i++) {
- var toKill = compute(ranges[i]);
- while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
- var replaced = kill.pop();
- if (cmp(replaced.from, toKill.from) < 0) {
- toKill.from = replaced.from;
- break
- }
- }
- kill.push(toKill);
- }
- // Next, remove those actual ranges.
- runInOp(cm, function () {
- for (var i = kill.length - 1; i >= 0; i--)
- { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
- ensureCursorVisible(cm);
- });
- }
-
- function moveCharLogically(line, ch, dir) {
- var target = skipExtendingChars(line.text, ch + dir, dir);
- return target < 0 || target > line.text.length ? null : target
- }
-
- function moveLogically(line, start, dir) {
- var ch = moveCharLogically(line, start.ch, dir);
- return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
- }
-
- function endOfLine(visually, cm, lineObj, lineNo, dir) {
- if (visually) {
- if (cm.doc.direction == "rtl") { dir = -dir; }
- var order = getOrder(lineObj, cm.doc.direction);
- if (order) {
- var part = dir < 0 ? lst(order) : order[0];
- var moveInStorageOrder = (dir < 0) == (part.level == 1);
- var sticky = moveInStorageOrder ? "after" : "before";
- var ch;
- // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
- // it could be that the last bidi part is not on the last visual line,
- // since visual lines contain content order-consecutive chunks.
- // Thus, in rtl, we are looking for the first (content-order) character
- // in the rtl chunk that is on the last line (that is, the same line
- // as the last (content-order) character).
- if (part.level > 0 || cm.doc.direction == "rtl") {
- var prep = prepareMeasureForLine(cm, lineObj);
- ch = dir < 0 ? lineObj.text.length - 1 : 0;
- var targetTop = measureCharPrepared(cm, prep, ch).top;
- ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
- if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
- } else { ch = dir < 0 ? part.to : part.from; }
- return new Pos(lineNo, ch, sticky)
- }
- }
- return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
- }
-
- function moveVisually(cm, line, start, dir) {
- var bidi = getOrder(line, cm.doc.direction);
- if (!bidi) { return moveLogically(line, start, dir) }
- if (start.ch >= line.text.length) {
- start.ch = line.text.length;
- start.sticky = "before";
- } else if (start.ch <= 0) {
- start.ch = 0;
- start.sticky = "after";
- }
- var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
- if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
- // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
- // nothing interesting happens.
- return moveLogically(line, start, dir)
- }
-
- var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
- var prep;
- var getWrappedLineExtent = function (ch) {
- if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
- prep = prep || prepareMeasureForLine(cm, line);
- return wrappedLineExtentChar(cm, line, prep, ch)
- };
- var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);
-
- if (cm.doc.direction == "rtl" || part.level == 1) {
- var moveInStorageOrder = (part.level == 1) == (dir < 0);
- var ch = mv(start, moveInStorageOrder ? 1 : -1);
- if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
- // Case 2: We move within an rtl part or in an rtl editor on the same visual line
- var sticky = moveInStorageOrder ? "before" : "after";
- return new Pos(start.line, ch, sticky)
- }
- }
-
- // Case 3: Could not move within this bidi part in this visual line, so leave
- // the current bidi part
-
- var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
- var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
- ? new Pos(start.line, mv(ch, 1), "before")
- : new Pos(start.line, ch, "after"); };
-
- for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
- var part = bidi[partPos];
- var moveInStorageOrder = (dir > 0) == (part.level != 1);
- var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
- if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
- ch = moveInStorageOrder ? part.from : mv(part.to, -1);
- if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
- }
- };
-
- // Case 3a: Look for other bidi parts on the same visual line
- var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
- if (res) { return res }
-
- // Case 3b: Look for other bidi parts on the next visual line
- var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
- if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
- res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
- if (res) { return res }
- }
-
- // Case 4: Nowhere to move
- return null
- }
-
- // Commands are parameter-less actions that can be performed on an
- // editor, mostly used for keybindings.
- var commands = {
- selectAll: selectAll,
- singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
- killLine: function (cm) { return deleteNearSelection(cm, function (range) {
- if (range.empty()) {
- var len = getLine(cm.doc, range.head.line).text.length;
- if (range.head.ch == len && range.head.line < cm.lastLine())
- { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
- else
- { return {from: range.head, to: Pos(range.head.line, len)} }
- } else {
- return {from: range.from(), to: range.to()}
- }
- }); },
- deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
- from: Pos(range.from().line, 0),
- to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
- }); }); },
- delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
- from: Pos(range.from().line, 0), to: range.from()
- }); }); },
- delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
- var top = cm.charCoords(range.head, "div").top + 5;
- var leftPos = cm.coordsChar({left: 0, top: top}, "div");
- return {from: leftPos, to: range.from()}
- }); },
- delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
- var top = cm.charCoords(range.head, "div").top + 5;
- var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
- return {from: range.from(), to: rightPos }
- }); },
- undo: function (cm) { return cm.undo(); },
- redo: function (cm) { return cm.redo(); },
- undoSelection: function (cm) { return cm.undoSelection(); },
- redoSelection: function (cm) { return cm.redoSelection(); },
- goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
- goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
- goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
- {origin: "+move", bias: 1}
- ); },
- goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
- {origin: "+move", bias: 1}
- ); },
- goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
- {origin: "+move", bias: -1}
- ); },
- goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
- var top = cm.cursorCoords(range.head, "div").top + 5;
- return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
- }, sel_move); },
- goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
- var top = cm.cursorCoords(range.head, "div").top + 5;
- return cm.coordsChar({left: 0, top: top}, "div")
- }, sel_move); },
- goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
- var top = cm.cursorCoords(range.head, "div").top + 5;
- var pos = cm.coordsChar({left: 0, top: top}, "div");
- if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
- return pos
- }, sel_move); },
- goLineUp: function (cm) { return cm.moveV(-1, "line"); },
- goLineDown: function (cm) { return cm.moveV(1, "line"); },
- goPageUp: function (cm) { return cm.moveV(-1, "page"); },
- goPageDown: function (cm) { return cm.moveV(1, "page"); },
- goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
- goCharRight: function (cm) { return cm.moveH(1, "char"); },
- goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
- goColumnRight: function (cm) { return cm.moveH(1, "column"); },
- goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
- goGroupRight: function (cm) { return cm.moveH(1, "group"); },
- goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
- goWordRight: function (cm) { return cm.moveH(1, "word"); },
- delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); },
- delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
- delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
- delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
- delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
- delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
- indentAuto: function (cm) { return cm.indentSelection("smart"); },
- indentMore: function (cm) { return cm.indentSelection("add"); },
- indentLess: function (cm) { return cm.indentSelection("subtract"); },
- insertTab: function (cm) { return cm.replaceSelection("\t"); },
- insertSoftTab: function (cm) {
- var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
- for (var i = 0; i < ranges.length; i++) {
- var pos = ranges[i].from();
- var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
- spaces.push(spaceStr(tabSize - col % tabSize));
- }
- cm.replaceSelections(spaces);
- },
- defaultTab: function (cm) {
- if (cm.somethingSelected()) { cm.indentSelection("add"); }
- else { cm.execCommand("insertTab"); }
- },
- // Swap the two chars left and right of each selection's head.
- // Move cursor behind the two swapped characters afterwards.
- //
- // Doesn't consider line feeds a character.
- // Doesn't scan more than one line above to find a character.
- // Doesn't do anything on an empty line.
- // Doesn't do anything with non-empty selections.
- transposeChars: function (cm) { return runInOp(cm, function () {
- var ranges = cm.listSelections(), newSel = [];
- for (var i = 0; i < ranges.length; i++) {
- if (!ranges[i].empty()) { continue }
- var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
- if (line) {
- if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
- if (cur.ch > 0) {
- cur = new Pos(cur.line, cur.ch + 1);
- cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
- Pos(cur.line, cur.ch - 2), cur, "+transpose");
- } else if (cur.line > cm.doc.first) {
- var prev = getLine(cm.doc, cur.line - 1).text;
- if (prev) {
- cur = new Pos(cur.line, 1);
- cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
- prev.charAt(prev.length - 1),
- Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
- }
- }
- }
- newSel.push(new Range(cur, cur));
- }
- cm.setSelections(newSel);
- }); },
- newlineAndIndent: function (cm) { return runInOp(cm, function () {
- var sels = cm.listSelections();
- for (var i = sels.length - 1; i >= 0; i--)
- { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
- sels = cm.listSelections();
- for (var i$1 = 0; i$1 < sels.length; i$1++)
- { cm.indentLine(sels[i$1].from().line, null, true); }
- ensureCursorVisible(cm);
- }); },
- openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
- toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
- };
-
-
- function lineStart(cm, lineN) {
- var line = getLine(cm.doc, lineN);
- var visual = visualLine(line);
- if (visual != line) { lineN = lineNo(visual); }
- return endOfLine(true, cm, visual, lineN, 1)
- }
- function lineEnd(cm, lineN) {
- var line = getLine(cm.doc, lineN);
- var visual = visualLineEnd(line);
- if (visual != line) { lineN = lineNo(visual); }
- return endOfLine(true, cm, line, lineN, -1)
- }
- function lineStartSmart(cm, pos) {
- var start = lineStart(cm, pos.line);
- var line = getLine(cm.doc, start.line);
- var order = getOrder(line, cm.doc.direction);
- if (!order || order[0].level == 0) {
- var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
- var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
- return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
- }
- return start
- }
-
- // Run a handler that was bound to a key.
- function doHandleBinding(cm, bound, dropShift) {
- if (typeof bound == "string") {
- bound = commands[bound];
- if (!bound) { return false }
- }
- // Ensure previous input has been read, so that the handler sees a
- // consistent view of the document
- cm.display.input.ensurePolled();
- var prevShift = cm.display.shift, done = false;
- try {
- if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
- if (dropShift) { cm.display.shift = false; }
- done = bound(cm) != Pass;
- } finally {
- cm.display.shift = prevShift;
- cm.state.suppressEdits = false;
- }
- return done
- }
-
- function lookupKeyForEditor(cm, name, handle) {
- for (var i = 0; i < cm.state.keyMaps.length; i++) {
- var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
- if (result) { return result }
- }
- return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
- || lookupKey(name, cm.options.keyMap, handle, cm)
- }
-
- // Note that, despite the name, this function is also used to check
- // for bound mouse clicks.
-
- var stopSeq = new Delayed;
-
- function dispatchKey(cm, name, e, handle) {
- var seq = cm.state.keySeq;
- if (seq) {
- if (isModifierKey(name)) { return "handled" }
- if (/\'$/.test(name))
- { cm.state.keySeq = null; }
- else
- { stopSeq.set(50, function () {
- if (cm.state.keySeq == seq) {
- cm.state.keySeq = null;
- cm.display.input.reset();
- }
- }); }
- if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
- }
- return dispatchKeyInner(cm, name, e, handle)
- }
-
- function dispatchKeyInner(cm, name, e, handle) {
- var result = lookupKeyForEditor(cm, name, handle);
-
- if (result == "multi")
- { cm.state.keySeq = name; }
- if (result == "handled")
- { signalLater(cm, "keyHandled", cm, name, e); }
-
- if (result == "handled" || result == "multi") {
- e_preventDefault(e);
- restartBlink(cm);
- }
-
- return !!result
- }
-
- // Handle a key from the keydown event.
- function handleKeyBinding(cm, e) {
- var name = keyName(e, true);
- if (!name) { return false }
-
- if (e.shiftKey && !cm.state.keySeq) {
- // First try to resolve full name (including 'Shift-'). Failing
- // that, see if there is a cursor-motion command (starting with
- // 'go') bound to the keyname without 'Shift-'.
- return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
- || dispatchKey(cm, name, e, function (b) {
- if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
- { return doHandleBinding(cm, b) }
- })
- } else {
- return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
- }
- }
-
- // Handle a key from the keypress event
- function handleCharBinding(cm, e, ch) {
- return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
- }
-
- var lastStoppedKey = null;
- function onKeyDown(e) {
- var cm = this;
- if (e.target && e.target != cm.display.input.getField()) { return }
- cm.curOp.focus = activeElt(root(cm));
- if (signalDOMEvent(cm, e)) { return }
- // IE does strange things with escape.
- if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
- var code = e.keyCode;
- cm.display.shift = code == 16 || e.shiftKey;
- var handled = handleKeyBinding(cm, e);
- if (presto) {
- lastStoppedKey = handled ? code : null;
- // Opera has no cut event... we try to at least catch the key combo
- if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
- { cm.replaceSelection("", null, "cut"); }
- }
- if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
- { document.execCommand("cut"); }
-
- // Turn mouse into crosshair when Alt is held on Mac.
- if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
- { showCrossHair(cm); }
- }
-
- function showCrossHair(cm) {
- var lineDiv = cm.display.lineDiv;
- addClass(lineDiv, "CodeMirror-crosshair");
-
- function up(e) {
- if (e.keyCode == 18 || !e.altKey) {
- rmClass(lineDiv, "CodeMirror-crosshair");
- off(document, "keyup", up);
- off(document, "mouseover", up);
- }
- }
- on(document, "keyup", up);
- on(document, "mouseover", up);
- }
-
- function onKeyUp(e) {
- if (e.keyCode == 16) { this.doc.sel.shift = false; }
- signalDOMEvent(this, e);
- }
-
- function onKeyPress(e) {
- var cm = this;
- if (e.target && e.target != cm.display.input.getField()) { return }
- if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
- var keyCode = e.keyCode, charCode = e.charCode;
- if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
- if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
- var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
- // Some browsers fire keypress events for backspace
- if (ch == "\x08") { return }
- if (handleCharBinding(cm, e, ch)) { return }
- cm.display.input.onKeyPress(e);
- }
-
- var DOUBLECLICK_DELAY = 400;
-
- var PastClick = function(time, pos, button) {
- this.time = time;
- this.pos = pos;
- this.button = button;
- };
-
- PastClick.prototype.compare = function (time, pos, button) {
- return this.time + DOUBLECLICK_DELAY > time &&
- cmp(pos, this.pos) == 0 && button == this.button
- };
-
- var lastClick, lastDoubleClick;
- function clickRepeat(pos, button) {
- var now = +new Date;
- if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
- lastClick = lastDoubleClick = null;
- return "triple"
- } else if (lastClick && lastClick.compare(now, pos, button)) {
- lastDoubleClick = new PastClick(now, pos, button);
- lastClick = null;
- return "double"
- } else {
- lastClick = new PastClick(now, pos, button);
- lastDoubleClick = null;
- return "single"
- }
- }
-
- // A mouse down can be a single click, double click, triple click,
- // start of selection drag, start of text drag, new cursor
- // (ctrl-click), rectangle drag (alt-drag), or xwin
- // middle-click-paste. Or it might be a click on something we should
- // not interfere with, such as a scrollbar or widget.
- function onMouseDown(e) {
- var cm = this, display = cm.display;
- if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
- display.input.ensurePolled();
- display.shift = e.shiftKey;
-
- if (eventInWidget(display, e)) {
- if (!webkit) {
- // Briefly turn off draggability, to allow widgets to do
- // normal dragging things.
- display.scroller.draggable = false;
- setTimeout(function () { return display.scroller.draggable = true; }, 100);
- }
- return
- }
- if (clickInGutter(cm, e)) { return }
- var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
- win(cm).focus();
-
- // #3261: make sure, that we're not starting a second selection
- if (button == 1 && cm.state.selectingText)
- { cm.state.selectingText(e); }
-
- if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }
-
- if (button == 1) {
- if (pos) { leftButtonDown(cm, pos, repeat, e); }
- else if (e_target(e) == display.scroller) { e_preventDefault(e); }
- } else if (button == 2) {
- if (pos) { extendSelection(cm.doc, pos); }
- setTimeout(function () { return display.input.focus(); }, 20);
- } else if (button == 3) {
- if (captureRightClick) { cm.display.input.onContextMenu(e); }
- else { delayBlurEvent(cm); }
- }
- }
-
- function handleMappedButton(cm, button, pos, repeat, event) {
- var name = "Click";
- if (repeat == "double") { name = "Double" + name; }
- else if (repeat == "triple") { name = "Triple" + name; }
- name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;
-
- return dispatchKey(cm, addModifierNames(name, event), event, function (bound) {
- if (typeof bound == "string") { bound = commands[bound]; }
- if (!bound) { return false }
- var done = false;
- try {
- if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
- done = bound(cm, pos) != Pass;
- } finally {
- cm.state.suppressEdits = false;
- }
- return done
- })
- }
-
- function configureMouse(cm, repeat, event) {
- var option = cm.getOption("configureMouse");
- var value = option ? option(cm, repeat, event) : {};
- if (value.unit == null) {
- var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
- value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
- }
- if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
- if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
- if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
- return value
- }
-
- function leftButtonDown(cm, pos, repeat, event) {
- if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
- else { cm.curOp.focus = activeElt(root(cm)); }
-
- var behavior = configureMouse(cm, repeat, event);
-
- var sel = cm.doc.sel, contained;
- if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
- repeat == "single" && (contained = sel.contains(pos)) > -1 &&
- (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
- (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
- { leftButtonStartDrag(cm, event, pos, behavior); }
- else
- { leftButtonSelect(cm, event, pos, behavior); }
- }
-
- // Start a text drag. When it ends, see if any dragging actually
- // happen, and treat as a click if it didn't.
- function leftButtonStartDrag(cm, event, pos, behavior) {
- var display = cm.display, moved = false;
- var dragEnd = operation(cm, function (e) {
- if (webkit) { display.scroller.draggable = false; }
- cm.state.draggingText = false;
- if (cm.state.delayingBlurEvent) {
- if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; }
- else { delayBlurEvent(cm); }
- }
- off(display.wrapper.ownerDocument, "mouseup", dragEnd);
- off(display.wrapper.ownerDocument, "mousemove", mouseMove);
- off(display.scroller, "dragstart", dragStart);
- off(display.scroller, "drop", dragEnd);
- if (!moved) {
- e_preventDefault(e);
- if (!behavior.addNew)
- { extendSelection(cm.doc, pos, null, null, behavior.extend); }
- // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
- if ((webkit && !safari) || ie && ie_version == 9)
- { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
- else
- { display.input.focus(); }
- }
- });
- var mouseMove = function(e2) {
- moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
- };
- var dragStart = function () { return moved = true; };
- // Let the drag handler handle this.
- if (webkit) { display.scroller.draggable = true; }
- cm.state.draggingText = dragEnd;
- dragEnd.copy = !behavior.moveOnDrag;
- on(display.wrapper.ownerDocument, "mouseup", dragEnd);
- on(display.wrapper.ownerDocument, "mousemove", mouseMove);
- on(display.scroller, "dragstart", dragStart);
- on(display.scroller, "drop", dragEnd);
-
- cm.state.delayingBlurEvent = true;
- setTimeout(function () { return display.input.focus(); }, 20);
- // IE's approach to draggable
- if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
- }
-
- function rangeForUnit(cm, pos, unit) {
- if (unit == "char") { return new Range(pos, pos) }
- if (unit == "word") { return cm.findWordAt(pos) }
- if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
- var result = unit(cm, pos);
- return new Range(result.from, result.to)
- }
-
- // Normal selection, as opposed to text dragging.
- function leftButtonSelect(cm, event, start, behavior) {
- if (ie) { delayBlurEvent(cm); }
- var display = cm.display, doc = cm.doc;
- e_preventDefault(event);
-
- var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
- if (behavior.addNew && !behavior.extend) {
- ourIndex = doc.sel.contains(start);
- if (ourIndex > -1)
- { ourRange = ranges[ourIndex]; }
- else
- { ourRange = new Range(start, start); }
- } else {
- ourRange = doc.sel.primary();
- ourIndex = doc.sel.primIndex;
- }
-
- if (behavior.unit == "rectangle") {
- if (!behavior.addNew) { ourRange = new Range(start, start); }
- start = posFromMouse(cm, event, true, true);
- ourIndex = -1;
- } else {
- var range = rangeForUnit(cm, start, behavior.unit);
- if (behavior.extend)
- { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
- else
- { ourRange = range; }
- }
-
- if (!behavior.addNew) {
- ourIndex = 0;
- setSelection(doc, new Selection([ourRange], 0), sel_mouse);
- startSel = doc.sel;
- } else if (ourIndex == -1) {
- ourIndex = ranges.length;
- setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
- {scroll: false, origin: "*mouse"});
- } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
- setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
- {scroll: false, origin: "*mouse"});
- startSel = doc.sel;
- } else {
- replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
- }
-
- var lastPos = start;
- function extendTo(pos) {
- if (cmp(lastPos, pos) == 0) { return }
- lastPos = pos;
-
- if (behavior.unit == "rectangle") {
- var ranges = [], tabSize = cm.options.tabSize;
- var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
- var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
- var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
- for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
- line <= end; line++) {
- var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
- if (left == right)
- { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
- else if (text.length > leftPos)
- { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
- }
- if (!ranges.length) { ranges.push(new Range(start, start)); }
- setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
- {origin: "*mouse", scroll: false});
- cm.scrollIntoView(pos);
- } else {
- var oldRange = ourRange;
- var range = rangeForUnit(cm, pos, behavior.unit);
- var anchor = oldRange.anchor, head;
- if (cmp(range.anchor, anchor) > 0) {
- head = range.head;
- anchor = minPos(oldRange.from(), range.anchor);
- } else {
- head = range.anchor;
- anchor = maxPos(oldRange.to(), range.head);
- }
- var ranges$1 = startSel.ranges.slice(0);
- ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
- setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
- }
- }
-
- var editorSize = display.wrapper.getBoundingClientRect();
- // Used to ensure timeout re-tries don't fire when another extend
- // happened in the meantime (clearTimeout isn't reliable -- at
- // least on Chrome, the timeouts still happen even when cleared,
- // if the clear happens after their scheduled firing time).
- var counter = 0;
-
- function extend(e) {
- var curCount = ++counter;
- var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
- if (!cur) { return }
- if (cmp(cur, lastPos) != 0) {
- cm.curOp.focus = activeElt(root(cm));
- extendTo(cur);
- var visible = visibleLines(display, doc);
- if (cur.line >= visible.to || cur.line < visible.from)
- { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
- } else {
- var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
- if (outside) { setTimeout(operation(cm, function () {
- if (counter != curCount) { return }
- display.scroller.scrollTop += outside;
- extend(e);
- }), 50); }
- }
- }
-
- function done(e) {
- cm.state.selectingText = false;
- counter = Infinity;
- // If e is null or undefined we interpret this as someone trying
- // to explicitly cancel the selection rather than the user
- // letting go of the mouse button.
- if (e) {
- e_preventDefault(e);
- display.input.focus();
- }
- off(display.wrapper.ownerDocument, "mousemove", move);
- off(display.wrapper.ownerDocument, "mouseup", up);
- doc.history.lastSelOrigin = null;
- }
-
- var move = operation(cm, function (e) {
- if (e.buttons === 0 || !e_button(e)) { done(e); }
- else { extend(e); }
- });
- var up = operation(cm, done);
- cm.state.selectingText = up;
- on(display.wrapper.ownerDocument, "mousemove", move);
- on(display.wrapper.ownerDocument, "mouseup", up);
- }
-
- // Used when mouse-selecting to adjust the anchor to the proper side
- // of a bidi jump depending on the visual position of the head.
- function bidiSimplify(cm, range) {
- var anchor = range.anchor;
- var head = range.head;
- var anchorLine = getLine(cm.doc, anchor.line);
- if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
- var order = getOrder(anchorLine);
- if (!order) { return range }
- var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
- if (part.from != anchor.ch && part.to != anchor.ch) { return range }
- var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
- if (boundary == 0 || boundary == order.length) { return range }
-
- // Compute the relative visual position of the head compared to the
- // anchor (<0 is to the left, >0 to the right)
- var leftSide;
- if (head.line != anchor.line) {
- leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
- } else {
- var headIndex = getBidiPartAt(order, head.ch, head.sticky);
- var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
- if (headIndex == boundary - 1 || headIndex == boundary)
- { leftSide = dir < 0; }
- else
- { leftSide = dir > 0; }
- }
-
- var usePart = order[boundary + (leftSide ? -1 : 0)];
- var from = leftSide == (usePart.level == 1);
- var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
- return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
- }
-
-
- // Determines whether an event happened in the gutter, and fires the
- // handlers for the corresponding event.
- function gutterEvent(cm, e, type, prevent) {
- var mX, mY;
- if (e.touches) {
- mX = e.touches[0].clientX;
- mY = e.touches[0].clientY;
- } else {
- try { mX = e.clientX; mY = e.clientY; }
- catch(e$1) { return false }
- }
- if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
- if (prevent) { e_preventDefault(e); }
-
- var display = cm.display;
- var lineBox = display.lineDiv.getBoundingClientRect();
-
- if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
- mY -= lineBox.top - display.viewOffset;
-
- for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
- var g = display.gutters.childNodes[i];
- if (g && g.getBoundingClientRect().right >= mX) {
- var line = lineAtHeight(cm.doc, mY);
- var gutter = cm.display.gutterSpecs[i];
- signal(cm, type, cm, line, gutter.className, e);
- return e_defaultPrevented(e)
- }
- }
- }
-
- function clickInGutter(cm, e) {
- return gutterEvent(cm, e, "gutterClick", true)
- }
-
- // CONTEXT MENU HANDLING
-
- // To make the context menu work, we need to briefly unhide the
- // textarea (making it as unobtrusive as possible) to let the
- // right-click take effect on it.
- function onContextMenu(cm, e) {
- if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
- if (signalDOMEvent(cm, e, "contextmenu")) { return }
- if (!captureRightClick) { cm.display.input.onContextMenu(e); }
- }
-
- function contextMenuInGutter(cm, e) {
- if (!hasHandler(cm, "gutterContextMenu")) { return false }
- return gutterEvent(cm, e, "gutterContextMenu", false)
- }
-
- function themeChanged(cm) {
- cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
- cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
- clearCaches(cm);
- }
-
- var Init = {toString: function(){return "CodeMirror.Init"}};
-
- var defaults = {};
- var optionHandlers = {};
-
- function defineOptions(CodeMirror) {
- var optionHandlers = CodeMirror.optionHandlers;
-
- function option(name, deflt, handle, notOnInit) {
- CodeMirror.defaults[name] = deflt;
- if (handle) { optionHandlers[name] =
- notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
- }
-
- CodeMirror.defineOption = option;
-
- // Passed to option handlers when there is no old value.
- CodeMirror.Init = Init;
-
- // These two are, on init, called from the constructor because they
- // have to be initialized before the editor can start at all.
- option("value", "", function (cm, val) { return cm.setValue(val); }, true);
- option("mode", null, function (cm, val) {
- cm.doc.modeOption = val;
- loadMode(cm);
- }, true);
-
- option("indentUnit", 2, loadMode, true);
- option("indentWithTabs", false);
- option("smartIndent", true);
- option("tabSize", 4, function (cm) {
- resetModeState(cm);
- clearCaches(cm);
- regChange(cm);
- }, true);
-
- option("lineSeparator", null, function (cm, val) {
- cm.doc.lineSep = val;
- if (!val) { return }
- var newBreaks = [], lineNo = cm.doc.first;
- cm.doc.iter(function (line) {
- for (var pos = 0;;) {
- var found = line.text.indexOf(val, pos);
- if (found == -1) { break }
- pos = found + val.length;
- newBreaks.push(Pos(lineNo, found));
- }
- lineNo++;
- });
- for (var i = newBreaks.length - 1; i >= 0; i--)
- { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
- });
- option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\u202d\u202e\u2066\u2067\u2069\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
- cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
- if (old != Init) { cm.refresh(); }
- });
- option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
- option("electricChars", true);
- option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
- throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
- }, true);
- option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
- option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
- option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
- option("rtlMoveVisually", !windows);
- option("wholeLineUpdateBefore", true);
-
- option("theme", "default", function (cm) {
- themeChanged(cm);
- updateGutters(cm);
- }, true);
- option("keyMap", "default", function (cm, val, old) {
- var next = getKeyMap(val);
- var prev = old != Init && getKeyMap(old);
- if (prev && prev.detach) { prev.detach(cm, next); }
- if (next.attach) { next.attach(cm, prev || null); }
- });
- option("extraKeys", null);
- option("configureMouse", null);
-
- option("lineWrapping", false, wrappingChanged, true);
- option("gutters", [], function (cm, val) {
- cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
- updateGutters(cm);
- }, true);
- option("fixedGutter", true, function (cm, val) {
- cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
- cm.refresh();
- }, true);
- option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
- option("scrollbarStyle", "native", function (cm) {
- initScrollbars(cm);
- updateScrollbars(cm);
- cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
- cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
- }, true);
- option("lineNumbers", false, function (cm, val) {
- cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
- updateGutters(cm);
- }, true);
- option("firstLineNumber", 1, updateGutters, true);
- option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
- option("showCursorWhenSelecting", false, updateSelection, true);
-
- option("resetSelectionOnContextMenu", true);
- option("lineWiseCopyCut", true);
- option("pasteLinesPerSelection", true);
- option("selectionsMayTouch", false);
-
- option("readOnly", false, function (cm, val) {
- if (val == "nocursor") {
- onBlur(cm);
- cm.display.input.blur();
- }
- cm.display.input.readOnlyChanged(val);
- });
-
- option("screenReaderLabel", null, function (cm, val) {
- val = (val === '') ? null : val;
- cm.display.input.screenReaderLabelChanged(val);
- });
-
- option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
- option("dragDrop", true, dragDropChanged);
- option("allowDropFileTypes", null);
-
- option("cursorBlinkRate", 530);
- option("cursorScrollMargin", 0);
- option("cursorHeight", 1, updateSelection, true);
- option("singleCursorHeightPerLine", true, updateSelection, true);
- option("workTime", 100);
- option("workDelay", 100);
- option("flattenSpans", true, resetModeState, true);
- option("addModeClass", false, resetModeState, true);
- option("pollInterval", 100);
- option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
- option("historyEventDelay", 1250);
- option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
- option("maxHighlightLength", 10000, resetModeState, true);
- option("moveInputWithCursor", true, function (cm, val) {
- if (!val) { cm.display.input.resetPosition(); }
- });
-
- option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
- option("autofocus", null);
- option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
- option("phrases", null);
- }
-
- function dragDropChanged(cm, value, old) {
- var wasOn = old && old != Init;
- if (!value != !wasOn) {
- var funcs = cm.display.dragFunctions;
- var toggle = value ? on : off;
- toggle(cm.display.scroller, "dragstart", funcs.start);
- toggle(cm.display.scroller, "dragenter", funcs.enter);
- toggle(cm.display.scroller, "dragover", funcs.over);
- toggle(cm.display.scroller, "dragleave", funcs.leave);
- toggle(cm.display.scroller, "drop", funcs.drop);
- }
- }
-
- function wrappingChanged(cm) {
- if (cm.options.lineWrapping) {
- addClass(cm.display.wrapper, "CodeMirror-wrap");
- cm.display.sizer.style.minWidth = "";
- cm.display.sizerWidth = null;
- } else {
- rmClass(cm.display.wrapper, "CodeMirror-wrap");
- findMaxLine(cm);
- }
- estimateLineHeights(cm);
- regChange(cm);
- clearCaches(cm);
- setTimeout(function () { return updateScrollbars(cm); }, 100);
- }
-
- // A CodeMirror instance represents an editor. This is the object
- // that user code is usually dealing with.
-
- function CodeMirror(place, options) {
- var this$1 = this;
-
- if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
-
- this.options = options = options ? copyObj(options) : {};
- // Determine effective options based on given values and defaults.
- copyObj(defaults, options, false);
-
- var doc = options.value;
- if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
- else if (options.mode) { doc.modeOption = options.mode; }
- this.doc = doc;
-
- var input = new CodeMirror.inputStyles[options.inputStyle](this);
- var display = this.display = new Display(place, doc, input, options);
- display.wrapper.CodeMirror = this;
- themeChanged(this);
- if (options.lineWrapping)
- { this.display.wrapper.className += " CodeMirror-wrap"; }
- initScrollbars(this);
-
- this.state = {
- keyMaps: [], // stores maps added by addKeyMap
- overlays: [], // highlighting overlays, as added by addOverlay
- modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
- overwrite: false,
- delayingBlurEvent: false,
- focused: false,
- suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
- pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
- selectingText: false,
- draggingText: false,
- highlight: new Delayed(), // stores highlight worker timeout
- keySeq: null, // Unfinished key sequence
- specialChars: null
- };
-
- if (options.autofocus && !mobile) { display.input.focus(); }
-
- // Override magic textarea content restore that IE sometimes does
- // on our hidden textarea on reload
- if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }
-
- registerEventHandlers(this);
- ensureGlobalHandlers();
-
- startOperation(this);
- this.curOp.forceUpdate = true;
- attachDoc(this, doc);
-
- if ((options.autofocus && !mobile) || this.hasFocus())
- { setTimeout(function () {
- if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); }
- }, 20); }
- else
- { onBlur(this); }
-
- for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
- { optionHandlers[opt](this, options[opt], Init); } }
- maybeUpdateLineNumberWidth(this);
- if (options.finishInit) { options.finishInit(this); }
- for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
- endOperation(this);
- // Suppress optimizelegibility in Webkit, since it breaks text
- // measuring on line wrapping boundaries.
- if (webkit && options.lineWrapping &&
- getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
- { display.lineDiv.style.textRendering = "auto"; }
- }
-
- // The default configuration options.
- CodeMirror.defaults = defaults;
- // Functions to run when options are changed.
- CodeMirror.optionHandlers = optionHandlers;
-
- // Attach the necessary event handlers when initializing the editor
- function registerEventHandlers(cm) {
- var d = cm.display;
- on(d.scroller, "mousedown", operation(cm, onMouseDown));
- // Older IE's will not fire a second mousedown for a double click
- if (ie && ie_version < 11)
- { on(d.scroller, "dblclick", operation(cm, function (e) {
- if (signalDOMEvent(cm, e)) { return }
- var pos = posFromMouse(cm, e);
- if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
- e_preventDefault(e);
- var word = cm.findWordAt(pos);
- extendSelection(cm.doc, word.anchor, word.head);
- })); }
- else
- { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
- // Some browsers fire contextmenu *after* opening the menu, at
- // which point we can't mess with it anymore. Context menu is
- // handled in onMouseDown for these browsers.
- on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
- on(d.input.getField(), "contextmenu", function (e) {
- if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
- });
-
- // Used to suppress mouse event handling when a touch happens
- var touchFinished, prevTouch = {end: 0};
- function finishTouch() {
- if (d.activeTouch) {
- touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
- prevTouch = d.activeTouch;
- prevTouch.end = +new Date;
- }
- }
- function isMouseLikeTouchEvent(e) {
- if (e.touches.length != 1) { return false }
- var touch = e.touches[0];
- return touch.radiusX <= 1 && touch.radiusY <= 1
- }
- function farAway(touch, other) {
- if (other.left == null) { return true }
- var dx = other.left - touch.left, dy = other.top - touch.top;
- return dx * dx + dy * dy > 20 * 20
- }
- on(d.scroller, "touchstart", function (e) {
- if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
- d.input.ensurePolled();
- clearTimeout(touchFinished);
- var now = +new Date;
- d.activeTouch = {start: now, moved: false,
- prev: now - prevTouch.end <= 300 ? prevTouch : null};
- if (e.touches.length == 1) {
- d.activeTouch.left = e.touches[0].pageX;
- d.activeTouch.top = e.touches[0].pageY;
- }
- }
- });
- on(d.scroller, "touchmove", function () {
- if (d.activeTouch) { d.activeTouch.moved = true; }
- });
- on(d.scroller, "touchend", function (e) {
- var touch = d.activeTouch;
- if (touch && !eventInWidget(d, e) && touch.left != null &&
- !touch.moved && new Date - touch.start < 300) {
- var pos = cm.coordsChar(d.activeTouch, "page"), range;
- if (!touch.prev || farAway(touch, touch.prev)) // Single tap
- { range = new Range(pos, pos); }
- else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
- { range = cm.findWordAt(pos); }
- else // Triple tap
- { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
- cm.setSelection(range.anchor, range.head);
- cm.focus();
- e_preventDefault(e);
- }
- finishTouch();
- });
- on(d.scroller, "touchcancel", finishTouch);
-
- // Sync scrolling between fake scrollbars and real scrollable
- // area, ensure viewport is updated when scrolling.
- on(d.scroller, "scroll", function () {
- if (d.scroller.clientHeight) {
- updateScrollTop(cm, d.scroller.scrollTop);
- setScrollLeft(cm, d.scroller.scrollLeft, true);
- signal(cm, "scroll", cm);
- }
- });
-
- // Listen to wheel events in order to try and update the viewport on time.
- on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
- on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });
-
- // Prevent wrapper from ever scrolling
- on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
-
- d.dragFunctions = {
- enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
- over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
- start: function (e) { return onDragStart(cm, e); },
- drop: operation(cm, onDrop),
- leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
- };
-
- var inp = d.input.getField();
- on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
- on(inp, "keydown", operation(cm, onKeyDown));
- on(inp, "keypress", operation(cm, onKeyPress));
- on(inp, "focus", function (e) { return onFocus(cm, e); });
- on(inp, "blur", function (e) { return onBlur(cm, e); });
- }
-
- var initHooks = [];
- CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };
-
- // Indent the given line. The how parameter can be "smart",
- // "add"/null, "subtract", or "prev". When aggressive is false
- // (typically set to true for forced single-line indents), empty
- // lines are not indented, and places where the mode returns Pass
- // are left alone.
- function indentLine(cm, n, how, aggressive) {
- var doc = cm.doc, state;
- if (how == null) { how = "add"; }
- if (how == "smart") {
- // Fall back to "prev" when the mode doesn't have an indentation
- // method.
- if (!doc.mode.indent) { how = "prev"; }
- else { state = getContextBefore(cm, n).state; }
- }
-
- var tabSize = cm.options.tabSize;
- var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
- if (line.stateAfter) { line.stateAfter = null; }
- var curSpaceString = line.text.match(/^\s*/)[0], indentation;
- if (!aggressive && !/\S/.test(line.text)) {
- indentation = 0;
- how = "not";
- } else if (how == "smart") {
- indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
- if (indentation == Pass || indentation > 150) {
- if (!aggressive) { return }
- how = "prev";
- }
- }
- if (how == "prev") {
- if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
- else { indentation = 0; }
- } else if (how == "add") {
- indentation = curSpace + cm.options.indentUnit;
- } else if (how == "subtract") {
- indentation = curSpace - cm.options.indentUnit;
- } else if (typeof how == "number") {
- indentation = curSpace + how;
- }
- indentation = Math.max(0, indentation);
-
- var indentString = "", pos = 0;
- if (cm.options.indentWithTabs)
- { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
- if (pos < indentation) { indentString += spaceStr(indentation - pos); }
-
- if (indentString != curSpaceString) {
- replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
- line.stateAfter = null;
- return true
- } else {
- // Ensure that, if the cursor was in the whitespace at the start
- // of the line, it is moved to the end of that space.
- for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
- var range = doc.sel.ranges[i$1];
- if (range.head.line == n && range.head.ch < curSpaceString.length) {
- var pos$1 = Pos(n, curSpaceString.length);
- replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
- break
- }
- }
- }
- }
-
- // This will be set to a {lineWise: bool, text: [string]} object, so
- // that, when pasting, we know what kind of selections the copied
- // text was made out of.
- var lastCopied = null;
-
- function setLastCopied(newLastCopied) {
- lastCopied = newLastCopied;
- }
-
- function applyTextInput(cm, inserted, deleted, sel, origin) {
- var doc = cm.doc;
- cm.display.shift = false;
- if (!sel) { sel = doc.sel; }
-
- var recent = +new Date - 200;
- var paste = origin == "paste" || cm.state.pasteIncoming > recent;
- var textLines = splitLinesAuto(inserted), multiPaste = null;
- // When pasting N lines into N selections, insert one line per selection
- if (paste && sel.ranges.length > 1) {
- if (lastCopied && lastCopied.text.join("\n") == inserted) {
- if (sel.ranges.length % lastCopied.text.length == 0) {
- multiPaste = [];
- for (var i = 0; i < lastCopied.text.length; i++)
- { multiPaste.push(doc.splitLines(lastCopied.text[i])); }
- }
- } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
- multiPaste = map(textLines, function (l) { return [l]; });
- }
- }
-
- var updateInput = cm.curOp.updateInput;
- // Normal behavior is to insert the new text into every selection
- for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
- var range = sel.ranges[i$1];
- var from = range.from(), to = range.to();
- if (range.empty()) {
- if (deleted && deleted > 0) // Handle deletion
- { from = Pos(from.line, from.ch - deleted); }
- else if (cm.state.overwrite && !paste) // Handle overwrite
- { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
- else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
- { from = to = Pos(from.line, 0); }
- }
- var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
- origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
- makeChange(cm.doc, changeEvent);
- signalLater(cm, "inputRead", cm, changeEvent);
- }
- if (inserted && !paste)
- { triggerElectric(cm, inserted); }
-
- ensureCursorVisible(cm);
- if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
- cm.curOp.typing = true;
- cm.state.pasteIncoming = cm.state.cutIncoming = -1;
- }
-
- function handlePaste(e, cm) {
- var pasted = e.clipboardData && e.clipboardData.getData("Text");
- if (pasted) {
- e.preventDefault();
- if (!cm.isReadOnly() && !cm.options.disableInput && cm.hasFocus())
- { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
- return true
- }
- }
-
- function triggerElectric(cm, inserted) {
- // When an 'electric' character is inserted, immediately trigger a reindent
- if (!cm.options.electricChars || !cm.options.smartIndent) { return }
- var sel = cm.doc.sel;
-
- for (var i = sel.ranges.length - 1; i >= 0; i--) {
- var range = sel.ranges[i];
- if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
- var mode = cm.getModeAt(range.head);
- var indented = false;
- if (mode.electricChars) {
- for (var j = 0; j < mode.electricChars.length; j++)
- { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
- indented = indentLine(cm, range.head.line, "smart");
- break
- } }
- } else if (mode.electricInput) {
- if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
- { indented = indentLine(cm, range.head.line, "smart"); }
- }
- if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
- }
- }
-
- function copyableRanges(cm) {
- var text = [], ranges = [];
- for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
- var line = cm.doc.sel.ranges[i].head.line;
- var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
- ranges.push(lineRange);
- text.push(cm.getRange(lineRange.anchor, lineRange.head));
- }
- return {text: text, ranges: ranges}
- }
-
- function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
- field.setAttribute("autocorrect", autocorrect ? "on" : "off");
- field.setAttribute("autocapitalize", autocapitalize ? "on" : "off");
- field.setAttribute("spellcheck", !!spellcheck);
- }
-
- function hiddenTextarea() {
- var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; min-height: 1em; outline: none");
- var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
- // The textarea is kept positioned near the cursor to prevent the
- // fact that it'll be scrolled into view on input from scrolling
- // our fake cursor out of view. On webkit, when wrap=off, paste is
- // very slow. So make the area wide instead.
- if (webkit) { te.style.width = "1000px"; }
- else { te.setAttribute("wrap", "off"); }
- // If border: 0; -- iOS fails to open keyboard (issue #1287)
- if (ios) { te.style.border = "1px solid black"; }
- return div
- }
-
- // The publicly visible API. Note that methodOp(f) means
- // 'wrap f in an operation, performed on its `this` parameter'.
-
- // This is not the complete set of editor methods. Most of the
- // methods defined on the Doc type are also injected into
- // CodeMirror.prototype, for backwards compatibility and
- // convenience.
-
- function addEditorMethods(CodeMirror) {
- var optionHandlers = CodeMirror.optionHandlers;
-
- var helpers = CodeMirror.helpers = {};
-
- CodeMirror.prototype = {
- constructor: CodeMirror,
- focus: function(){win(this).focus(); this.display.input.focus();},
-
- setOption: function(option, value) {
- var options = this.options, old = options[option];
- if (options[option] == value && option != "mode") { return }
- options[option] = value;
- if (optionHandlers.hasOwnProperty(option))
- { operation(this, optionHandlers[option])(this, value, old); }
- signal(this, "optionChange", this, option);
- },
-
- getOption: function(option) {return this.options[option]},
- getDoc: function() {return this.doc},
-
- addKeyMap: function(map, bottom) {
- this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
- },
- removeKeyMap: function(map) {
- var maps = this.state.keyMaps;
- for (var i = 0; i < maps.length; ++i)
- { if (maps[i] == map || maps[i].name == map) {
- maps.splice(i, 1);
- return true
- } }
- },
-
- addOverlay: methodOp(function(spec, options) {
- var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
- if (mode.startState) { throw new Error("Overlays may not be stateful.") }
- insertSorted(this.state.overlays,
- {mode: mode, modeSpec: spec, opaque: options && options.opaque,
- priority: (options && options.priority) || 0},
- function (overlay) { return overlay.priority; });
- this.state.modeGen++;
- regChange(this);
- }),
- removeOverlay: methodOp(function(spec) {
- var overlays = this.state.overlays;
- for (var i = 0; i < overlays.length; ++i) {
- var cur = overlays[i].modeSpec;
- if (cur == spec || typeof spec == "string" && cur.name == spec) {
- overlays.splice(i, 1);
- this.state.modeGen++;
- regChange(this);
- return
- }
- }
- }),
-
- indentLine: methodOp(function(n, dir, aggressive) {
- if (typeof dir != "string" && typeof dir != "number") {
- if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
- else { dir = dir ? "add" : "subtract"; }
- }
- if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
- }),
- indentSelection: methodOp(function(how) {
- var ranges = this.doc.sel.ranges, end = -1;
- for (var i = 0; i < ranges.length; i++) {
- var range = ranges[i];
- if (!range.empty()) {
- var from = range.from(), to = range.to();
- var start = Math.max(end, from.line);
- end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
- for (var j = start; j < end; ++j)
- { indentLine(this, j, how); }
- var newRanges = this.doc.sel.ranges;
- if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
- { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
- } else if (range.head.line > end) {
- indentLine(this, range.head.line, how, true);
- end = range.head.line;
- if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
- }
- }
- }),
-
- // Fetch the parser token for a given character. Useful for hacks
- // that want to inspect the mode state (say, for completion).
- getTokenAt: function(pos, precise) {
- return takeToken(this, pos, precise)
- },
-
- getLineTokens: function(line, precise) {
- return takeToken(this, Pos(line), precise, true)
- },
-
- getTokenTypeAt: function(pos) {
- pos = clipPos(this.doc, pos);
- var styles = getLineStyles(this, getLine(this.doc, pos.line));
- var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
- var type;
- if (ch == 0) { type = styles[2]; }
- else { for (;;) {
- var mid = (before + after) >> 1;
- if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
- else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
- else { type = styles[mid * 2 + 2]; break }
- } }
- var cut = type ? type.indexOf("overlay ") : -1;
- return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
- },
-
- getModeAt: function(pos) {
- var mode = this.doc.mode;
- if (!mode.innerMode) { return mode }
- return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
- },
-
- getHelper: function(pos, type) {
- return this.getHelpers(pos, type)[0]
- },
-
- getHelpers: function(pos, type) {
- var found = [];
- if (!helpers.hasOwnProperty(type)) { return found }
- var help = helpers[type], mode = this.getModeAt(pos);
- if (typeof mode[type] == "string") {
- if (help[mode[type]]) { found.push(help[mode[type]]); }
- } else if (mode[type]) {
- for (var i = 0; i < mode[type].length; i++) {
- var val = help[mode[type][i]];
- if (val) { found.push(val); }
- }
- } else if (mode.helperType && help[mode.helperType]) {
- found.push(help[mode.helperType]);
- } else if (help[mode.name]) {
- found.push(help[mode.name]);
- }
- for (var i$1 = 0; i$1 < help._global.length; i$1++) {
- var cur = help._global[i$1];
- if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
- { found.push(cur.val); }
- }
- return found
- },
-
- getStateAfter: function(line, precise) {
- var doc = this.doc;
- line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
- return getContextBefore(this, line + 1, precise).state
- },
-
- cursorCoords: function(start, mode) {
- var pos, range = this.doc.sel.primary();
- if (start == null) { pos = range.head; }
- else if (typeof start == "object") { pos = clipPos(this.doc, start); }
- else { pos = start ? range.from() : range.to(); }
- return cursorCoords(this, pos, mode || "page")
- },
-
- charCoords: function(pos, mode) {
- return charCoords(this, clipPos(this.doc, pos), mode || "page")
- },
-
- coordsChar: function(coords, mode) {
- coords = fromCoordSystem(this, coords, mode || "page");
- return coordsChar(this, coords.left, coords.top)
- },
-
- lineAtHeight: function(height, mode) {
- height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
- return lineAtHeight(this.doc, height + this.display.viewOffset)
- },
- heightAtLine: function(line, mode, includeWidgets) {
- var end = false, lineObj;
- if (typeof line == "number") {
- var last = this.doc.first + this.doc.size - 1;
- if (line < this.doc.first) { line = this.doc.first; }
- else if (line > last) { line = last; end = true; }
- lineObj = getLine(this.doc, line);
- } else {
- lineObj = line;
- }
- return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
- (end ? this.doc.height - heightAtLine(lineObj) : 0)
- },
-
- defaultTextHeight: function() { return textHeight(this.display) },
- defaultCharWidth: function() { return charWidth(this.display) },
-
- getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
-
- addWidget: function(pos, node, scroll, vert, horiz) {
- var display = this.display;
- pos = cursorCoords(this, clipPos(this.doc, pos));
- var top = pos.bottom, left = pos.left;
- node.style.position = "absolute";
- node.setAttribute("cm-ignore-events", "true");
- this.display.input.setUneditable(node);
- display.sizer.appendChild(node);
- if (vert == "over") {
- top = pos.top;
- } else if (vert == "above" || vert == "near") {
- var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
- hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
- // Default to positioning above (if specified and possible); otherwise default to positioning below
- if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
- { top = pos.top - node.offsetHeight; }
- else if (pos.bottom + node.offsetHeight <= vspace)
- { top = pos.bottom; }
- if (left + node.offsetWidth > hspace)
- { left = hspace - node.offsetWidth; }
- }
- node.style.top = top + "px";
- node.style.left = node.style.right = "";
- if (horiz == "right") {
- left = display.sizer.clientWidth - node.offsetWidth;
- node.style.right = "0px";
- } else {
- if (horiz == "left") { left = 0; }
- else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
- node.style.left = left + "px";
- }
- if (scroll)
- { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
- },
-
- triggerOnKeyDown: methodOp(onKeyDown),
- triggerOnKeyPress: methodOp(onKeyPress),
- triggerOnKeyUp: onKeyUp,
- triggerOnMouseDown: methodOp(onMouseDown),
-
- execCommand: function(cmd) {
- if (commands.hasOwnProperty(cmd))
- { return commands[cmd].call(null, this) }
- },
-
- triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
-
- findPosH: function(from, amount, unit, visually) {
- var dir = 1;
- if (amount < 0) { dir = -1; amount = -amount; }
- var cur = clipPos(this.doc, from);
- for (var i = 0; i < amount; ++i) {
- cur = findPosH(this.doc, cur, dir, unit, visually);
- if (cur.hitSide) { break }
- }
- return cur
- },
-
- moveH: methodOp(function(dir, unit) {
- var this$1 = this;
-
- this.extendSelectionsBy(function (range) {
- if (this$1.display.shift || this$1.doc.extend || range.empty())
- { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
- else
- { return dir < 0 ? range.from() : range.to() }
- }, sel_move);
- }),
-
- deleteH: methodOp(function(dir, unit) {
- var sel = this.doc.sel, doc = this.doc;
- if (sel.somethingSelected())
- { doc.replaceSelection("", null, "+delete"); }
- else
- { deleteNearSelection(this, function (range) {
- var other = findPosH(doc, range.head, dir, unit, false);
- return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
- }); }
- }),
-
- findPosV: function(from, amount, unit, goalColumn) {
- var dir = 1, x = goalColumn;
- if (amount < 0) { dir = -1; amount = -amount; }
- var cur = clipPos(this.doc, from);
- for (var i = 0; i < amount; ++i) {
- var coords = cursorCoords(this, cur, "div");
- if (x == null) { x = coords.left; }
- else { coords.left = x; }
- cur = findPosV(this, coords, dir, unit);
- if (cur.hitSide) { break }
- }
- return cur
- },
-
- moveV: methodOp(function(dir, unit) {
- var this$1 = this;
-
- var doc = this.doc, goals = [];
- var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
- doc.extendSelectionsBy(function (range) {
- if (collapse)
- { return dir < 0 ? range.from() : range.to() }
- var headPos = cursorCoords(this$1, range.head, "div");
- if (range.goalColumn != null) { headPos.left = range.goalColumn; }
- goals.push(headPos.left);
- var pos = findPosV(this$1, headPos, dir, unit);
- if (unit == "page" && range == doc.sel.primary())
- { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
- return pos
- }, sel_move);
- if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
- { doc.sel.ranges[i].goalColumn = goals[i]; } }
- }),
-
- // Find the word at the given position (as returned by coordsChar).
- findWordAt: function(pos) {
- var doc = this.doc, line = getLine(doc, pos.line).text;
- var start = pos.ch, end = pos.ch;
- if (line) {
- var helper = this.getHelper(pos, "wordChars");
- if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
- var startChar = line.charAt(start);
- var check = isWordChar(startChar, helper)
- ? function (ch) { return isWordChar(ch, helper); }
- : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
- : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
- while (start > 0 && check(line.charAt(start - 1))) { --start; }
- while (end < line.length && check(line.charAt(end))) { ++end; }
- }
- return new Range(Pos(pos.line, start), Pos(pos.line, end))
- },
-
- toggleOverwrite: function(value) {
- if (value != null && value == this.state.overwrite) { return }
- if (this.state.overwrite = !this.state.overwrite)
- { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
- else
- { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
-
- signal(this, "overwriteToggle", this, this.state.overwrite);
- },
- hasFocus: function() { return this.display.input.getField() == activeElt(root(this)) },
- isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
-
- scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
- getScrollInfo: function() {
- var scroller = this.display.scroller;
- return {left: scroller.scrollLeft, top: scroller.scrollTop,
- height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
- width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
- clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
- },
-
- scrollIntoView: methodOp(function(range, margin) {
- if (range == null) {
- range = {from: this.doc.sel.primary().head, to: null};
- if (margin == null) { margin = this.options.cursorScrollMargin; }
- } else if (typeof range == "number") {
- range = {from: Pos(range, 0), to: null};
- } else if (range.from == null) {
- range = {from: range, to: null};
- }
- if (!range.to) { range.to = range.from; }
- range.margin = margin || 0;
-
- if (range.from.line != null) {
- scrollToRange(this, range);
- } else {
- scrollToCoordsRange(this, range.from, range.to, range.margin);
- }
- }),
-
- setSize: methodOp(function(width, height) {
- var this$1 = this;
-
- var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
- if (width != null) { this.display.wrapper.style.width = interpret(width); }
- if (height != null) { this.display.wrapper.style.height = interpret(height); }
- if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
- var lineNo = this.display.viewFrom;
- this.doc.iter(lineNo, this.display.viewTo, function (line) {
- if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
- { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
- ++lineNo;
- });
- this.curOp.forceUpdate = true;
- signal(this, "refresh", this);
- }),
-
- operation: function(f){return runInOp(this, f)},
- startOperation: function(){return startOperation(this)},
- endOperation: function(){return endOperation(this)},
-
- refresh: methodOp(function() {
- var oldHeight = this.display.cachedTextHeight;
- regChange(this);
- this.curOp.forceUpdate = true;
- clearCaches(this);
- scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
- updateGutterSpace(this.display);
- if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
- { estimateLineHeights(this); }
- signal(this, "refresh", this);
- }),
-
- swapDoc: methodOp(function(doc) {
- var old = this.doc;
- old.cm = null;
- // Cancel the current text selection if any (#5821)
- if (this.state.selectingText) { this.state.selectingText(); }
- attachDoc(this, doc);
- clearCaches(this);
- this.display.input.reset();
- scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
- this.curOp.forceScroll = true;
- signalLater(this, "swapDoc", this, old);
- return old
- }),
-
- phrase: function(phraseText) {
- var phrases = this.options.phrases;
- return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
- },
-
- getInputField: function(){return this.display.input.getField()},
- getWrapperElement: function(){return this.display.wrapper},
- getScrollerElement: function(){return this.display.scroller},
- getGutterElement: function(){return this.display.gutters}
- };
- eventMixin(CodeMirror);
-
- CodeMirror.registerHelper = function(type, name, value) {
- if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
- helpers[type][name] = value;
- };
- CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
- CodeMirror.registerHelper(type, name, value);
- helpers[type]._global.push({pred: predicate, val: value});
- };
- }
-
- // Used for horizontal relative motion. Dir is -1 or 1 (left or
- // right), unit can be "codepoint", "char", "column" (like char, but
- // doesn't cross line boundaries), "word" (across next word), or
- // "group" (to the start of next group of word or
- // non-word-non-whitespace chars). The visually param controls
- // whether, in right-to-left text, direction 1 means to move towards
- // the next index in the string, or towards the character to the right
- // of the current position. The resulting position will have a
- // hitSide=true property if it reached the end of the document.
- function findPosH(doc, pos, dir, unit, visually) {
- var oldPos = pos;
- var origDir = dir;
- var lineObj = getLine(doc, pos.line);
- var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
- function findNextLine() {
- var l = pos.line + lineDir;
- if (l < doc.first || l >= doc.first + doc.size) { return false }
- pos = new Pos(l, pos.ch, pos.sticky);
- return lineObj = getLine(doc, l)
- }
- function moveOnce(boundToLine) {
- var next;
- if (unit == "codepoint") {
- var ch = lineObj.text.charCodeAt(pos.ch + (dir > 0 ? 0 : -1));
- if (isNaN(ch)) {
- next = null;
- } else {
- var astral = dir > 0 ? ch >= 0xD800 && ch < 0xDC00 : ch >= 0xDC00 && ch < 0xDFFF;
- next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (astral ? 2 : 1))), -dir);
- }
- } else if (visually) {
- next = moveVisually(doc.cm, lineObj, pos, dir);
- } else {
- next = moveLogically(lineObj, pos, dir);
- }
- if (next == null) {
- if (!boundToLine && findNextLine())
- { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
- else
- { return false }
- } else {
- pos = next;
- }
- return true
- }
-
- if (unit == "char" || unit == "codepoint") {
- moveOnce();
- } else if (unit == "column") {
- moveOnce(true);
- } else if (unit == "word" || unit == "group") {
- var sawType = null, group = unit == "group";
- var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
- for (var first = true;; first = false) {
- if (dir < 0 && !moveOnce(!first)) { break }
- var cur = lineObj.text.charAt(pos.ch) || "\n";
- var type = isWordChar(cur, helper) ? "w"
- : group && cur == "\n" ? "n"
- : !group || /\s/.test(cur) ? null
- : "p";
- if (group && !first && !type) { type = "s"; }
- if (sawType && sawType != type) {
- if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
- break
- }
-
- if (type) { sawType = type; }
- if (dir > 0 && !moveOnce(!first)) { break }
- }
- }
- var result = skipAtomic(doc, pos, oldPos, origDir, true);
- if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
- return result
- }
-
- // For relative vertical movement. Dir may be -1 or 1. Unit can be
- // "page" or "line". The resulting position will have a hitSide=true
- // property if it reached the end of the document.
- function findPosV(cm, pos, dir, unit) {
- var doc = cm.doc, x = pos.left, y;
- if (unit == "page") {
- var pageSize = Math.min(cm.display.wrapper.clientHeight, win(cm).innerHeight || doc(cm).documentElement.clientHeight);
- var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
- y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;
-
- } else if (unit == "line") {
- y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
- }
- var target;
- for (;;) {
- target = coordsChar(cm, x, y);
- if (!target.outside) { break }
- if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
- y += dir * 5;
- }
- return target
- }
-
- // CONTENTEDITABLE INPUT STYLE
-
- var ContentEditableInput = function(cm) {
- this.cm = cm;
- this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
- this.polling = new Delayed();
- this.composing = null;
- this.gracePeriod = false;
- this.readDOMTimeout = null;
- };
-
- ContentEditableInput.prototype.init = function (display) {
- var this$1 = this;
-
- var input = this, cm = input.cm;
- var div = input.div = display.lineDiv;
- div.contentEditable = true;
- disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);
-
- function belongsToInput(e) {
- for (var t = e.target; t; t = t.parentNode) {
- if (t == div) { return true }
- if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
- }
- return false
- }
-
- on(div, "paste", function (e) {
- if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
- // IE doesn't fire input events, so we schedule a read for the pasted content in this way
- if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
- });
-
- on(div, "compositionstart", function (e) {
- this$1.composing = {data: e.data, done: false};
- });
- on(div, "compositionupdate", function (e) {
- if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
- });
- on(div, "compositionend", function (e) {
- if (this$1.composing) {
- if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
- this$1.composing.done = true;
- }
- });
-
- on(div, "touchstart", function () { return input.forceCompositionEnd(); });
-
- on(div, "input", function () {
- if (!this$1.composing) { this$1.readFromDOMSoon(); }
- });
-
- function onCopyCut(e) {
- if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return }
- if (cm.somethingSelected()) {
- setLastCopied({lineWise: false, text: cm.getSelections()});
- if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
- } else if (!cm.options.lineWiseCopyCut) {
- return
- } else {
- var ranges = copyableRanges(cm);
- setLastCopied({lineWise: true, text: ranges.text});
- if (e.type == "cut") {
- cm.operation(function () {
- cm.setSelections(ranges.ranges, 0, sel_dontScroll);
- cm.replaceSelection("", null, "cut");
- });
- }
- }
- if (e.clipboardData) {
- e.clipboardData.clearData();
- var content = lastCopied.text.join("\n");
- // iOS exposes the clipboard API, but seems to discard content inserted into it
- e.clipboardData.setData("Text", content);
- if (e.clipboardData.getData("Text") == content) {
- e.preventDefault();
- return
- }
- }
- // Old-fashioned briefly-focus-a-textarea hack
- var kludge = hiddenTextarea(), te = kludge.firstChild;
- disableBrowserMagic(te);
- cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
- te.value = lastCopied.text.join("\n");
- var hadFocus = activeElt(rootNode(div));
- selectInput(te);
- setTimeout(function () {
- cm.display.lineSpace.removeChild(kludge);
- hadFocus.focus();
- if (hadFocus == div) { input.showPrimarySelection(); }
- }, 50);
- }
- on(div, "copy", onCopyCut);
- on(div, "cut", onCopyCut);
- };
-
- ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
- // Label for screenreaders, accessibility
- if(label) {
- this.div.setAttribute('aria-label', label);
- } else {
- this.div.removeAttribute('aria-label');
- }
- };
-
- ContentEditableInput.prototype.prepareSelection = function () {
- var result = prepareSelection(this.cm, false);
- result.focus = activeElt(rootNode(this.div)) == this.div;
- return result
- };
-
- ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
- if (!info || !this.cm.display.view.length) { return }
- if (info.focus || takeFocus) { this.showPrimarySelection(); }
- this.showMultipleSelections(info);
- };
-
- ContentEditableInput.prototype.getSelection = function () {
- return this.cm.display.wrapper.ownerDocument.getSelection()
- };
-
- ContentEditableInput.prototype.showPrimarySelection = function () {
- var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
- var from = prim.from(), to = prim.to();
-
- if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
- sel.removeAllRanges();
- return
- }
-
- var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
- var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
- if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
- cmp(minPos(curAnchor, curFocus), from) == 0 &&
- cmp(maxPos(curAnchor, curFocus), to) == 0)
- { return }
-
- var view = cm.display.view;
- var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
- {node: view[0].measure.map[2], offset: 0};
- var end = to.line < cm.display.viewTo && posToDOM(cm, to);
- if (!end) {
- var measure = view[view.length - 1].measure;
- var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
- end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
- }
-
- if (!start || !end) {
- sel.removeAllRanges();
- return
- }
-
- var old = sel.rangeCount && sel.getRangeAt(0), rng;
- try { rng = range(start.node, start.offset, end.offset, end.node); }
- catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
- if (rng) {
- if (!gecko && cm.state.focused) {
- sel.collapse(start.node, start.offset);
- if (!rng.collapsed) {
- sel.removeAllRanges();
- sel.addRange(rng);
- }
- } else {
- sel.removeAllRanges();
- sel.addRange(rng);
- }
- if (old && sel.anchorNode == null) { sel.addRange(old); }
- else if (gecko) { this.startGracePeriod(); }
- }
- this.rememberSelection();
- };
-
- ContentEditableInput.prototype.startGracePeriod = function () {
- var this$1 = this;
-
- clearTimeout(this.gracePeriod);
- this.gracePeriod = setTimeout(function () {
- this$1.gracePeriod = false;
- if (this$1.selectionChanged())
- { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
- }, 20);
- };
-
- ContentEditableInput.prototype.showMultipleSelections = function (info) {
- removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
- removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
- };
-
- ContentEditableInput.prototype.rememberSelection = function () {
- var sel = this.getSelection();
- this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
- this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
- };
-
- ContentEditableInput.prototype.selectionInEditor = function () {
- var sel = this.getSelection();
- if (!sel.rangeCount) { return false }
- var node = sel.getRangeAt(0).commonAncestorContainer;
- return contains(this.div, node)
- };
-
- ContentEditableInput.prototype.focus = function () {
- if (this.cm.options.readOnly != "nocursor") {
- if (!this.selectionInEditor() || activeElt(rootNode(this.div)) != this.div)
- { this.showSelection(this.prepareSelection(), true); }
- this.div.focus();
- }
- };
- ContentEditableInput.prototype.blur = function () { this.div.blur(); };
- ContentEditableInput.prototype.getField = function () { return this.div };
-
- ContentEditableInput.prototype.supportsTouch = function () { return true };
-
- ContentEditableInput.prototype.receivedFocus = function () {
- var this$1 = this;
-
- var input = this;
- if (this.selectionInEditor())
- { setTimeout(function () { return this$1.pollSelection(); }, 20); }
- else
- { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }
-
- function poll() {
- if (input.cm.state.focused) {
- input.pollSelection();
- input.polling.set(input.cm.options.pollInterval, poll);
- }
- }
- this.polling.set(this.cm.options.pollInterval, poll);
- };
-
- ContentEditableInput.prototype.selectionChanged = function () {
- var sel = this.getSelection();
- return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
- sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
- };
-
- ContentEditableInput.prototype.pollSelection = function () {
- if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
- var sel = this.getSelection(), cm = this.cm;
- // On Android Chrome (version 56, at least), backspacing into an
- // uneditable block element will put the cursor in that element,
- // and then, because it's not editable, hide the virtual keyboard.
- // Because Android doesn't allow us to actually detect backspace
- // presses in a sane way, this code checks for when that happens
- // and simulates a backspace press in this case.
- if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
- this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
- this.blur();
- this.focus();
- return
- }
- if (this.composing) { return }
- this.rememberSelection();
- var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
- var head = domToPos(cm, sel.focusNode, sel.focusOffset);
- if (anchor && head) { runInOp(cm, function () {
- setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
- if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
- }); }
- };
-
- ContentEditableInput.prototype.pollContent = function () {
- if (this.readDOMTimeout != null) {
- clearTimeout(this.readDOMTimeout);
- this.readDOMTimeout = null;
- }
-
- var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
- var from = sel.from(), to = sel.to();
- if (from.ch == 0 && from.line > cm.firstLine())
- { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
- if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
- { to = Pos(to.line + 1, 0); }
- if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
-
- var fromIndex, fromLine, fromNode;
- if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
- fromLine = lineNo(display.view[0].line);
- fromNode = display.view[0].node;
- } else {
- fromLine = lineNo(display.view[fromIndex].line);
- fromNode = display.view[fromIndex - 1].node.nextSibling;
- }
- var toIndex = findViewIndex(cm, to.line);
- var toLine, toNode;
- if (toIndex == display.view.length - 1) {
- toLine = display.viewTo - 1;
- toNode = display.lineDiv.lastChild;
- } else {
- toLine = lineNo(display.view[toIndex + 1].line) - 1;
- toNode = display.view[toIndex + 1].node.previousSibling;
- }
-
- if (!fromNode) { return false }
- var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
- var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
- while (newText.length > 1 && oldText.length > 1) {
- if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
- else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
- else { break }
- }
-
- var cutFront = 0, cutEnd = 0;
- var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
- while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
- { ++cutFront; }
- var newBot = lst(newText), oldBot = lst(oldText);
- var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
- oldBot.length - (oldText.length == 1 ? cutFront : 0));
- while (cutEnd < maxCutEnd &&
- newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
- { ++cutEnd; }
- // Try to move start of change to start of selection if ambiguous
- if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
- while (cutFront && cutFront > from.ch &&
- newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
- cutFront--;
- cutEnd++;
- }
- }
-
- newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
- newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");
-
- var chFrom = Pos(fromLine, cutFront);
- var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
- if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
- replaceRange(cm.doc, newText, chFrom, chTo, "+input");
- return true
- }
- };
-
- ContentEditableInput.prototype.ensurePolled = function () {
- this.forceCompositionEnd();
- };
- ContentEditableInput.prototype.reset = function () {
- this.forceCompositionEnd();
- };
- ContentEditableInput.prototype.forceCompositionEnd = function () {
- if (!this.composing) { return }
- clearTimeout(this.readDOMTimeout);
- this.composing = null;
- this.updateFromDOM();
- this.div.blur();
- this.div.focus();
- };
- ContentEditableInput.prototype.readFromDOMSoon = function () {
- var this$1 = this;
-
- if (this.readDOMTimeout != null) { return }
- this.readDOMTimeout = setTimeout(function () {
- this$1.readDOMTimeout = null;
- if (this$1.composing) {
- if (this$1.composing.done) { this$1.composing = null; }
- else { return }
- }
- this$1.updateFromDOM();
- }, 80);
- };
-
- ContentEditableInput.prototype.updateFromDOM = function () {
- var this$1 = this;
-
- if (this.cm.isReadOnly() || !this.pollContent())
- { runInOp(this.cm, function () { return regChange(this$1.cm); }); }
- };
-
- ContentEditableInput.prototype.setUneditable = function (node) {
- node.contentEditable = "false";
- };
-
- ContentEditableInput.prototype.onKeyPress = function (e) {
- if (e.charCode == 0 || this.composing) { return }
- e.preventDefault();
- if (!this.cm.isReadOnly())
- { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
- };
-
- ContentEditableInput.prototype.readOnlyChanged = function (val) {
- this.div.contentEditable = String(val != "nocursor");
- };
-
- ContentEditableInput.prototype.onContextMenu = function () {};
- ContentEditableInput.prototype.resetPosition = function () {};
-
- ContentEditableInput.prototype.needsContentAttribute = true;
-
- function posToDOM(cm, pos) {
- var view = findViewForLine(cm, pos.line);
- if (!view || view.hidden) { return null }
- var line = getLine(cm.doc, pos.line);
- var info = mapFromLineView(view, line, pos.line);
-
- var order = getOrder(line, cm.doc.direction), side = "left";
- if (order) {
- var partPos = getBidiPartAt(order, pos.ch);
- side = partPos % 2 ? "right" : "left";
- }
- var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
- result.offset = result.collapse == "right" ? result.end : result.start;
- return result
- }
-
- function isInGutter(node) {
- for (var scan = node; scan; scan = scan.parentNode)
- { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
- return false
- }
-
- function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
-
- function domTextBetween(cm, from, to, fromLine, toLine) {
- var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
- function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
- function close() {
- if (closing) {
- text += lineSep;
- if (extraLinebreak) { text += lineSep; }
- closing = extraLinebreak = false;
- }
- }
- function addText(str) {
- if (str) {
- close();
- text += str;
- }
- }
- function walk(node) {
- if (node.nodeType == 1) {
- var cmText = node.getAttribute("cm-text");
- if (cmText) {
- addText(cmText);
- return
- }
- var markerID = node.getAttribute("cm-marker"), range;
- if (markerID) {
- var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
- if (found.length && (range = found[0].find(0)))
- { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
- return
- }
- if (node.getAttribute("contenteditable") == "false") { return }
- var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
- if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }
-
- if (isBlock) { close(); }
- for (var i = 0; i < node.childNodes.length; i++)
- { walk(node.childNodes[i]); }
-
- if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
- if (isBlock) { closing = true; }
- } else if (node.nodeType == 3) {
- addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
- }
- }
- for (;;) {
- walk(from);
- if (from == to) { break }
- from = from.nextSibling;
- extraLinebreak = false;
- }
- return text
- }
-
- function domToPos(cm, node, offset) {
- var lineNode;
- if (node == cm.display.lineDiv) {
- lineNode = cm.display.lineDiv.childNodes[offset];
- if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
- node = null; offset = 0;
- } else {
- for (lineNode = node;; lineNode = lineNode.parentNode) {
- if (!lineNode || lineNode == cm.display.lineDiv) { return null }
- if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
- }
- }
- for (var i = 0; i < cm.display.view.length; i++) {
- var lineView = cm.display.view[i];
- if (lineView.node == lineNode)
- { return locateNodeInLineView(lineView, node, offset) }
- }
- }
-
- function locateNodeInLineView(lineView, node, offset) {
- var wrapper = lineView.text.firstChild, bad = false;
- if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
- if (node == wrapper) {
- bad = true;
- node = wrapper.childNodes[offset];
- offset = 0;
- if (!node) {
- var line = lineView.rest ? lst(lineView.rest) : lineView.line;
- return badPos(Pos(lineNo(line), line.text.length), bad)
- }
- }
-
- var textNode = node.nodeType == 3 ? node : null, topNode = node;
- if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
- textNode = node.firstChild;
- if (offset) { offset = textNode.nodeValue.length; }
- }
- while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
- var measure = lineView.measure, maps = measure.maps;
-
- function find(textNode, topNode, offset) {
- for (var i = -1; i < (maps ? maps.length : 0); i++) {
- var map = i < 0 ? measure.map : maps[i];
- for (var j = 0; j < map.length; j += 3) {
- var curNode = map[j + 2];
- if (curNode == textNode || curNode == topNode) {
- var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
- var ch = map[j] + offset;
- if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
- return Pos(line, ch)
- }
- }
- }
- }
- var found = find(textNode, topNode, offset);
- if (found) { return badPos(found, bad) }
-
- // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
- for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
- found = find(after, after.firstChild, 0);
- if (found)
- { return badPos(Pos(found.line, found.ch - dist), bad) }
- else
- { dist += after.textContent.length; }
- }
- for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
- found = find(before, before.firstChild, -1);
- if (found)
- { return badPos(Pos(found.line, found.ch + dist$1), bad) }
- else
- { dist$1 += before.textContent.length; }
- }
- }
-
- // TEXTAREA INPUT STYLE
-
- var TextareaInput = function(cm) {
- this.cm = cm;
- // See input.poll and input.reset
- this.prevInput = "";
-
- // Flag that indicates whether we expect input to appear real soon
- // now (after some event like 'keypress' or 'input') and are
- // polling intensively.
- this.pollingFast = false;
- // Self-resetting timeout for the poller
- this.polling = new Delayed();
- // Used to work around IE issue with selection being forgotten when focus moves away from textarea
- this.hasSelection = false;
- this.composing = null;
- this.resetting = false;
- };
-
- TextareaInput.prototype.init = function (display) {
- var this$1 = this;
-
- var input = this, cm = this.cm;
- this.createField(display);
- var te = this.textarea;
-
- display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);
-
- // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
- if (ios) { te.style.width = "0px"; }
-
- on(te, "input", function () {
- if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
- input.poll();
- });
-
- on(te, "paste", function (e) {
- if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
-
- cm.state.pasteIncoming = +new Date;
- input.fastPoll();
- });
-
- function prepareCopyCut(e) {
- if (signalDOMEvent(cm, e)) { return }
- if (cm.somethingSelected()) {
- setLastCopied({lineWise: false, text: cm.getSelections()});
- } else if (!cm.options.lineWiseCopyCut) {
- return
- } else {
- var ranges = copyableRanges(cm);
- setLastCopied({lineWise: true, text: ranges.text});
- if (e.type == "cut") {
- cm.setSelections(ranges.ranges, null, sel_dontScroll);
- } else {
- input.prevInput = "";
- te.value = ranges.text.join("\n");
- selectInput(te);
- }
- }
- if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
- }
- on(te, "cut", prepareCopyCut);
- on(te, "copy", prepareCopyCut);
-
- on(display.scroller, "paste", function (e) {
- if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
- if (!te.dispatchEvent) {
- cm.state.pasteIncoming = +new Date;
- input.focus();
- return
- }
-
- // Pass the `paste` event to the textarea so it's handled by its event listener.
- var event = new Event("paste");
- event.clipboardData = e.clipboardData;
- te.dispatchEvent(event);
- });
-
- // Prevent normal selection in the editor (we handle our own)
- on(display.lineSpace, "selectstart", function (e) {
- if (!eventInWidget(display, e)) { e_preventDefault(e); }
- });
-
- on(te, "compositionstart", function () {
- var start = cm.getCursor("from");
- if (input.composing) { input.composing.range.clear(); }
- input.composing = {
- start: start,
- range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
- };
- });
- on(te, "compositionend", function () {
- if (input.composing) {
- input.poll();
- input.composing.range.clear();
- input.composing = null;
- }
- });
- };
-
- TextareaInput.prototype.createField = function (_display) {
- // Wraps and hides input textarea
- this.wrapper = hiddenTextarea();
- // The semihidden textarea that is focused when the editor is
- // focused, and receives input.
- this.textarea = this.wrapper.firstChild;
- var opts = this.cm.options;
- disableBrowserMagic(this.textarea, opts.spellcheck, opts.autocorrect, opts.autocapitalize);
- };
-
- TextareaInput.prototype.screenReaderLabelChanged = function (label) {
- // Label for screenreaders, accessibility
- if(label) {
- this.textarea.setAttribute('aria-label', label);
- } else {
- this.textarea.removeAttribute('aria-label');
- }
- };
-
- TextareaInput.prototype.prepareSelection = function () {
- // Redraw the selection and/or cursor
- var cm = this.cm, display = cm.display, doc = cm.doc;
- var result = prepareSelection(cm);
-
- // Move the hidden textarea near the cursor to prevent scrolling artifacts
- if (cm.options.moveInputWithCursor) {
- var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
- var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
- result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
- headPos.top + lineOff.top - wrapOff.top));
- result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
- headPos.left + lineOff.left - wrapOff.left));
- }
-
- return result
- };
-
- TextareaInput.prototype.showSelection = function (drawn) {
- var cm = this.cm, display = cm.display;
- removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
- removeChildrenAndAdd(display.selectionDiv, drawn.selection);
- if (drawn.teTop != null) {
- this.wrapper.style.top = drawn.teTop + "px";
- this.wrapper.style.left = drawn.teLeft + "px";
- }
- };
-
- // Reset the input to correspond to the selection (or to be empty,
- // when not typing and nothing is selected)
- TextareaInput.prototype.reset = function (typing) {
- if (this.contextMenuPending || this.composing && typing) { return }
- var cm = this.cm;
- this.resetting = true;
- if (cm.somethingSelected()) {
- this.prevInput = "";
- var content = cm.getSelection();
- this.textarea.value = content;
- if (cm.state.focused) { selectInput(this.textarea); }
- if (ie && ie_version >= 9) { this.hasSelection = content; }
- } else if (!typing) {
- this.prevInput = this.textarea.value = "";
- if (ie && ie_version >= 9) { this.hasSelection = null; }
- }
- this.resetting = false;
- };
-
- TextareaInput.prototype.getField = function () { return this.textarea };
-
- TextareaInput.prototype.supportsTouch = function () { return false };
-
- TextareaInput.prototype.focus = function () {
- if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt(rootNode(this.textarea)) != this.textarea)) {
- try { this.textarea.focus(); }
- catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
- }
- };
-
- TextareaInput.prototype.blur = function () { this.textarea.blur(); };
-
- TextareaInput.prototype.resetPosition = function () {
- this.wrapper.style.top = this.wrapper.style.left = 0;
- };
-
- TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };
-
- // Poll for input changes, using the normal rate of polling. This
- // runs as long as the editor is focused.
- TextareaInput.prototype.slowPoll = function () {
- var this$1 = this;
-
- if (this.pollingFast) { return }
- this.polling.set(this.cm.options.pollInterval, function () {
- this$1.poll();
- if (this$1.cm.state.focused) { this$1.slowPoll(); }
- });
- };
-
- // When an event has just come in that is likely to add or change
- // something in the input textarea, we poll faster, to ensure that
- // the change appears on the screen quickly.
- TextareaInput.prototype.fastPoll = function () {
- var missed = false, input = this;
- input.pollingFast = true;
- function p() {
- var changed = input.poll();
- if (!changed && !missed) {missed = true; input.polling.set(60, p);}
- else {input.pollingFast = false; input.slowPoll();}
- }
- input.polling.set(20, p);
- };
-
- // Read input from the textarea, and update the document to match.
- // When something is selected, it is present in the textarea, and
- // selected (unless it is huge, in which case a placeholder is
- // used). When nothing is selected, the cursor sits after previously
- // seen text (can be empty), which is stored in prevInput (we must
- // not reset the textarea when typing, because that breaks IME).
- TextareaInput.prototype.poll = function () {
- var this$1 = this;
-
- var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
- // Since this is called a *lot*, try to bail out as cheaply as
- // possible when it is clear that nothing happened. hasSelection
- // will be the case when there is a lot of text in the textarea,
- // in which case reading its value would be expensive.
- if (this.contextMenuPending || this.resetting || !cm.state.focused ||
- (hasSelection(input) && !prevInput && !this.composing) ||
- cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
- { return false }
-
- var text = input.value;
- // If nothing changed, bail.
- if (text == prevInput && !cm.somethingSelected()) { return false }
- // Work around nonsensical selection resetting in IE9/10, and
- // inexplicable appearance of private area unicode characters on
- // some key combos in Mac (#2689).
- if (ie && ie_version >= 9 && this.hasSelection === text ||
- mac && /[\uf700-\uf7ff]/.test(text)) {
- cm.display.input.reset();
- return false
- }
-
- if (cm.doc.sel == cm.display.selForContextMenu) {
- var first = text.charCodeAt(0);
- if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
- if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
- }
- // Find the part of the input that is actually new
- var same = 0, l = Math.min(prevInput.length, text.length);
- while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }
-
- runInOp(cm, function () {
- applyTextInput(cm, text.slice(same), prevInput.length - same,
- null, this$1.composing ? "*compose" : null);
-
- // Don't leave long text in the textarea, since it makes further polling slow
- if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
- else { this$1.prevInput = text; }
-
- if (this$1.composing) {
- this$1.composing.range.clear();
- this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
- {className: "CodeMirror-composing"});
- }
- });
- return true
- };
-
- TextareaInput.prototype.ensurePolled = function () {
- if (this.pollingFast && this.poll()) { this.pollingFast = false; }
- };
-
- TextareaInput.prototype.onKeyPress = function () {
- if (ie && ie_version >= 9) { this.hasSelection = null; }
- this.fastPoll();
- };
-
- TextareaInput.prototype.onContextMenu = function (e) {
- var input = this, cm = input.cm, display = cm.display, te = input.textarea;
- if (input.contextMenuPending) { input.contextMenuPending(); }
- var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
- if (!pos || presto) { return } // Opera is difficult.
-
- // Reset the current text selection only if the click is done outside of the selection
- // and 'resetSelectionOnContextMenu' option is true.
- var reset = cm.options.resetSelectionOnContextMenu;
- if (reset && cm.doc.sel.contains(pos) == -1)
- { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }
-
- var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
- var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
- input.wrapper.style.cssText = "position: static";
- te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
- var oldScrollY;
- if (webkit) { oldScrollY = te.ownerDocument.defaultView.scrollY; } // Work around Chrome issue (#2712)
- display.input.focus();
- if (webkit) { te.ownerDocument.defaultView.scrollTo(null, oldScrollY); }
- display.input.reset();
- // Adds "Select all" to context menu in FF
- if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
- input.contextMenuPending = rehide;
- display.selForContextMenu = cm.doc.sel;
- clearTimeout(display.detectingSelectAll);
-
- // Select-all will be greyed out if there's nothing to select, so
- // this adds a zero-width space so that we can later check whether
- // it got selected.
- function prepareSelectAllHack() {
- if (te.selectionStart != null) {
- var selected = cm.somethingSelected();
- var extval = "\u200b" + (selected ? te.value : "");
- te.value = "\u21da"; // Used to catch context-menu undo
- te.value = extval;
- input.prevInput = selected ? "" : "\u200b";
- te.selectionStart = 1; te.selectionEnd = extval.length;
- // Re-set this, in case some other handler touched the
- // selection in the meantime.
- display.selForContextMenu = cm.doc.sel;
- }
- }
- function rehide() {
- if (input.contextMenuPending != rehide) { return }
- input.contextMenuPending = false;
- input.wrapper.style.cssText = oldWrapperCSS;
- te.style.cssText = oldCSS;
- if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }
-
- // Try to detect the user choosing select-all
- if (te.selectionStart != null) {
- if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
- var i = 0, poll = function () {
- if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
- te.selectionEnd > 0 && input.prevInput == "\u200b") {
- operation(cm, selectAll)(cm);
- } else if (i++ < 10) {
- display.detectingSelectAll = setTimeout(poll, 500);
- } else {
- display.selForContextMenu = null;
- display.input.reset();
- }
- };
- display.detectingSelectAll = setTimeout(poll, 200);
- }
- }
-
- if (ie && ie_version >= 9) { prepareSelectAllHack(); }
- if (captureRightClick) {
- e_stop(e);
- var mouseup = function () {
- off(window, "mouseup", mouseup);
- setTimeout(rehide, 20);
- };
- on(window, "mouseup", mouseup);
- } else {
- setTimeout(rehide, 50);
- }
- };
-
- TextareaInput.prototype.readOnlyChanged = function (val) {
- if (!val) { this.reset(); }
- this.textarea.disabled = val == "nocursor";
- this.textarea.readOnly = !!val;
- };
-
- TextareaInput.prototype.setUneditable = function () {};
-
- TextareaInput.prototype.needsContentAttribute = false;
-
- function fromTextArea(textarea, options) {
- options = options ? copyObj(options) : {};
- options.value = textarea.value;
- if (!options.tabindex && textarea.tabIndex)
- { options.tabindex = textarea.tabIndex; }
- if (!options.placeholder && textarea.placeholder)
- { options.placeholder = textarea.placeholder; }
- // Set autofocus to true if this textarea is focused, or if it has
- // autofocus and no other element is focused.
- if (options.autofocus == null) {
- var hasFocus = activeElt(rootNode(textarea));
- options.autofocus = hasFocus == textarea ||
- textarea.getAttribute("autofocus") != null && hasFocus == document.body;
- }
-
- function save() {textarea.value = cm.getValue();}
-
- var realSubmit;
- if (textarea.form) {
- on(textarea.form, "submit", save);
- // Deplorable hack to make the submit method do the right thing.
- if (!options.leaveSubmitMethodAlone) {
- var form = textarea.form;
- realSubmit = form.submit;
- try {
- var wrappedSubmit = form.submit = function () {
- save();
- form.submit = realSubmit;
- form.submit();
- form.submit = wrappedSubmit;
- };
- } catch(e) {}
- }
- }
-
- options.finishInit = function (cm) {
- cm.save = save;
- cm.getTextArea = function () { return textarea; };
- cm.toTextArea = function () {
- cm.toTextArea = isNaN; // Prevent this from being ran twice
- save();
- textarea.parentNode.removeChild(cm.getWrapperElement());
- textarea.style.display = "";
- if (textarea.form) {
- off(textarea.form, "submit", save);
- if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
- { textarea.form.submit = realSubmit; }
- }
- };
- };
-
- textarea.style.display = "none";
- var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
- options);
- return cm
- }
-
- function addLegacyProps(CodeMirror) {
- CodeMirror.off = off;
- CodeMirror.on = on;
- CodeMirror.wheelEventPixels = wheelEventPixels;
- CodeMirror.Doc = Doc;
- CodeMirror.splitLines = splitLinesAuto;
- CodeMirror.countColumn = countColumn;
- CodeMirror.findColumn = findColumn;
- CodeMirror.isWordChar = isWordCharBasic;
- CodeMirror.Pass = Pass;
- CodeMirror.signal = signal;
- CodeMirror.Line = Line;
- CodeMirror.changeEnd = changeEnd;
- CodeMirror.scrollbarModel = scrollbarModel;
- CodeMirror.Pos = Pos;
- CodeMirror.cmpPos = cmp;
- CodeMirror.modes = modes;
- CodeMirror.mimeModes = mimeModes;
- CodeMirror.resolveMode = resolveMode;
- CodeMirror.getMode = getMode;
- CodeMirror.modeExtensions = modeExtensions;
- CodeMirror.extendMode = extendMode;
- CodeMirror.copyState = copyState;
- CodeMirror.startState = startState;
- CodeMirror.innerMode = innerMode;
- CodeMirror.commands = commands;
- CodeMirror.keyMap = keyMap;
- CodeMirror.keyName = keyName;
- CodeMirror.isModifierKey = isModifierKey;
- CodeMirror.lookupKey = lookupKey;
- CodeMirror.normalizeKeyMap = normalizeKeyMap;
- CodeMirror.StringStream = StringStream;
- CodeMirror.SharedTextMarker = SharedTextMarker;
- CodeMirror.TextMarker = TextMarker;
- CodeMirror.LineWidget = LineWidget;
- CodeMirror.e_preventDefault = e_preventDefault;
- CodeMirror.e_stopPropagation = e_stopPropagation;
- CodeMirror.e_stop = e_stop;
- CodeMirror.addClass = addClass;
- CodeMirror.contains = contains;
- CodeMirror.rmClass = rmClass;
- CodeMirror.keyNames = keyNames;
- }
-
- // EDITOR CONSTRUCTOR
-
- defineOptions(CodeMirror);
-
- addEditorMethods(CodeMirror);
-
- // Set up methods on CodeMirror's prototype to redirect to the editor's document.
- var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
- for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
- { CodeMirror.prototype[prop] = (function(method) {
- return function() {return method.apply(this.doc, arguments)}
- })(Doc.prototype[prop]); } }
-
- eventMixin(Doc);
- CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
-
- // Extra arguments are stored as the mode's dependencies, which is
- // used by (legacy) mechanisms like loadmode.js to automatically
- // load a mode. (Preferred mechanism is the require/define calls.)
- CodeMirror.defineMode = function(name/*, mode, …*/) {
- if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
- defineMode.apply(this, arguments);
- };
-
- CodeMirror.defineMIME = defineMIME;
-
- // Minimal default mode.
- CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
- CodeMirror.defineMIME("text/plain", "null");
-
- // EXTENSIONS
-
- CodeMirror.defineExtension = function (name, func) {
- CodeMirror.prototype[name] = func;
- };
- CodeMirror.defineDocExtension = function (name, func) {
- Doc.prototype[name] = func;
- };
-
- CodeMirror.fromTextArea = fromTextArea;
-
- addLegacyProps(CodeMirror);
-
- CodeMirror.version = "5.65.18";
-
- return CodeMirror;
-
-})));
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 19:17:06 +0000