Mercurial > kallithea
annotate rhodecode/public/js/codemirror.js @ 1306:6e1d24503383 beta
Added support for ascendent characters for inMemoryCommit
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Tue, 03 May 2011 16:20:06 +0200 |
parents | 166317d464f3 |
children | a30689fc4f61 |
rev | line source |
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1 // All functions that need access to the editor's state live inside |
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2 // the CodeMirror function. Below that, at the bottom of the file, |
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3 // some utilities are defined. |
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4 |
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5 // CodeMirror is the only global var we claim |
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6 var CodeMirror = (function() { |
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7 // This is the function that produces an editor instance. It's |
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8 // closure is used to store the editor state. |
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9 function CodeMirror(place, givenOptions) { |
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10 // Determine effective options based on given values and defaults. |
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11 var options = {}, defaults = CodeMirror.defaults; |
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12 for (var opt in defaults) |
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13 if (defaults.hasOwnProperty(opt)) |
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14 options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt]; |
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15 |
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16 // The element in which the editor lives. Takes care of scrolling |
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17 // (if enabled). |
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18 var wrapper = document.createElement("div"); |
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19 wrapper.className = "CodeMirror"; |
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20 // This mess creates the base DOM structure for the editor. |
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21 wrapper.innerHTML = |
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22 '<div style="position: relative">' + // Set to the height of the text, causes scrolling |
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23 '<pre style="position: relative; height: 0; visibility: hidden; overflow: hidden;">' + // To measure line/char size |
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24 '<span>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</span></pre>' + |
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25 '<div style="position: relative">' + // Moved around its parent to cover visible view |
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26 '<div class="CodeMirror-gutter"><div class="CodeMirror-gutter-text"></div></div>' + |
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27 '<div style="overflow: hidden; position: absolute; width: 0; left: 0">' + // Wraps and hides input textarea |
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28 '<textarea style="height: 1px; position: absolute; width: 1px;" wrap="off"></textarea></div>' + |
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29 // Provides positioning relative to (visible) text origin |
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30 '<div class="CodeMirror-lines"><div style="position: relative">' + |
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31 '<pre class="CodeMirror-cursor"> </pre>' + // Absolutely positioned blinky cursor |
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32 '<div></div></div></div></div></div>'; // This DIV contains the actual code |
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33 if (place.appendChild) place.appendChild(wrapper); else place(wrapper); |
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34 // I've never seen more elegant code in my life. |
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35 var code = wrapper.firstChild, measure = code.firstChild, mover = measure.nextSibling, |
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36 gutter = mover.firstChild, gutterText = gutter.firstChild, |
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37 inputDiv = gutter.nextSibling, input = inputDiv.firstChild, |
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38 lineSpace = inputDiv.nextSibling.firstChild, cursor = lineSpace.firstChild, lineDiv = cursor.nextSibling; |
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39 if (options.tabindex != null) input.tabindex = options.tabindex; |
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40 if (!options.gutter && !options.lineNumbers) gutter.style.display = "none"; |
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41 |
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42 // Delayed object wrap timeouts, making sure only one is active. blinker holds an interval. |
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43 var poll = new Delayed(), highlight = new Delayed(), blinker; |
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44 |
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45 // mode holds a mode API object. lines an array of Line objects |
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46 // (see Line constructor), work an array of lines that should be |
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47 // parsed, and history the undo history (instance of History |
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48 // constructor). |
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49 var mode, lines = [new Line("")], work, history = new History(), focused; |
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50 loadMode(); |
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51 // The selection. These are always maintained to point at valid |
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52 // positions. Inverted is used to remember that the user is |
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53 // selecting bottom-to-top. |
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54 var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false}; |
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55 // Selection-related flags. shiftSelecting obviously tracks |
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56 // whether the user is holding shift. reducedSelection is a hack |
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57 // to get around the fact that we can't create inverted |
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58 // selections. See below. |
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59 var shiftSelecting, reducedSelection; |
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60 // Variables used by startOperation/endOperation to track what |
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61 // happened during the operation. |
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62 var updateInput, changes, textChanged, selectionChanged, leaveInputAlone; |
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63 // Current visible range (may be bigger than the view window). |
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64 var showingFrom = 0, showingTo = 0, lastHeight = 0, curKeyId = null; |
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65 // editing will hold an object describing the things we put in the |
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66 // textarea, to help figure out whether something changed. |
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67 // bracketHighlighted is used to remember that a backet has been |
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68 // marked. |
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69 var editing, bracketHighlighted; |
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70 |
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71 // Initialize the content. Somewhat hacky (delayed prepareInput) |
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72 // to work around browser issues. |
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73 operation(function(){setValue(options.value || ""); updateInput = false;})(); |
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74 setTimeout(prepareInput, 20); |
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75 |
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76 // Register our event handlers. |
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77 connect(wrapper, "mousedown", operation(onMouseDown)); |
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78 // Gecko browsers fire contextmenu *after* opening the menu, at |
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79 // which point we can't mess with it anymore. Context menu is |
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80 // handled in onMouseDown for Gecko. |
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81 if (!gecko) connect(wrapper, "contextmenu", operation(onContextMenu)); |
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82 connect(code, "dblclick", operation(onDblClick)); |
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83 connect(wrapper, "scroll", function() {updateDisplay([]); if (options.onScroll) options.onScroll(instance);}); |
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84 connect(window, "resize", function() {updateDisplay(true);}); |
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85 connect(input, "keyup", operation(onKeyUp)); |
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86 connect(input, "keydown", operation(onKeyDown)); |
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87 connect(input, "keypress", operation(onKeyPress)); |
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88 connect(input, "focus", onFocus); |
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89 connect(input, "blur", onBlur); |
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90 |
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91 connect(wrapper, "dragenter", function(e){e.stop();}); |
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92 connect(wrapper, "dragover", function(e){e.stop();}); |
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93 connect(wrapper, "drop", operation(onDrop)); |
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94 connect(wrapper, "paste", function(){input.focus(); fastPoll();}); |
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95 connect(input, "paste", function(){fastPoll();}); |
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96 connect(input, "cut", function(){fastPoll();}); |
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97 |
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98 if (document.activeElement == input) onFocus(); |
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99 else onBlur(); |
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100 |
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101 function isLine(l) {return l >= 0 && l < lines.length;} |
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102 // The instance object that we'll return. Mostly calls out to |
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103 // local functions in the CodeMirror function. Some do some extra |
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104 // range checking and/or clipping. operation is used to wrap the |
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105 // call so that changes it makes are tracked, and the display is |
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106 // updated afterwards. |
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107 var instance = { |
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108 getValue: getValue, |
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109 setValue: operation(setValue), |
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110 getSelection: getSelection, |
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111 replaceSelection: operation(replaceSelection), |
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112 focus: function(){input.focus(); onFocus(); fastPoll();}, |
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113 setOption: function(option, value) { |
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114 options[option] = value; |
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115 if (option == "lineNumbers" || option == "gutter") gutterChanged(); |
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116 else if (option == "mode" || option == "indentUnit") loadMode(); |
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117 }, |
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118 getOption: function(option) {return options[option];}, |
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119 undo: operation(undo), |
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120 redo: operation(redo), |
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121 indentLine: operation(function(n) {if (isLine(n)) indentLine(n, "smart");}), |
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122 historySize: function() {return {undo: history.done.length, redo: history.undone.length};}, |
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123 matchBrackets: operation(function(){matchBrackets(true);}), |
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124 getTokenAt: function(pos) { |
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125 pos = clipPos(pos); |
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126 return lines[pos.line].getTokenAt(mode, getStateBefore(pos.line), pos.ch); |
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127 }, |
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128 cursorCoords: function(start){ |
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129 if (start == null) start = sel.inverted; |
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130 return pageCoords(start ? sel.from : sel.to); |
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131 }, |
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132 charCoords: function(pos){return pageCoords(clipPos(pos));}, |
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133 coordsChar: function(coords) { |
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134 var off = eltOffset(lineSpace); |
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135 var line = Math.min(showingTo - 1, showingFrom + Math.floor(coords.y / lineHeight())); |
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136 return clipPos({line: line, ch: charFromX(clipLine(line), coords.x)}); |
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137 }, |
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138 getSearchCursor: function(query, pos, caseFold) {return new SearchCursor(query, pos, caseFold);}, |
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139 markText: operation(function(a, b, c){return operation(markText(a, b, c));}), |
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140 setMarker: addGutterMarker, |
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141 clearMarker: removeGutterMarker, |
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142 setLineClass: operation(setLineClass), |
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143 lineInfo: lineInfo, |
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144 addWidget: function(pos, node, scroll) { |
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145 var pos = localCoords(clipPos(pos), true); |
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146 node.style.top = (showingFrom * lineHeight() + pos.yBot + paddingTop()) + "px"; |
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147 node.style.left = (pos.x + paddingLeft()) + "px"; |
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148 code.appendChild(node); |
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149 if (scroll) |
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150 scrollIntoView(pos.x, pos.yBot, pos.x + node.offsetWidth, pos.yBot + node.offsetHeight); |
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151 }, |
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152 |
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153 lineCount: function() {return lines.length;}, |
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154 getCursor: function(start) { |
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155 if (start == null) start = sel.inverted; |
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156 return copyPos(start ? sel.from : sel.to); |
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157 }, |
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158 somethingSelected: function() {return !posEq(sel.from, sel.to);}, |
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159 setCursor: operation(function(line, ch) { |
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160 if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch); |
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161 else setCursor(line, ch); |
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162 }), |
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163 setSelection: operation(function(from, to) {setSelection(clipPos(from), clipPos(to || from));}), |
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164 getLine: function(line) {if (isLine(line)) return lines[line].text;}, |
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165 setLine: operation(function(line, text) { |
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166 if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: lines[line].text.length}); |
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167 }), |
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168 removeLine: operation(function(line) { |
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169 if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0})); |
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170 }), |
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171 replaceRange: operation(replaceRange), |
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172 getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));}, |
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173 |
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174 operation: function(f){return operation(f)();}, |
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175 refresh: function(){updateDisplay(true);}, |
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176 getInputField: function(){return input;}, |
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177 getWrapperElement: function(){return wrapper;} |
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178 }; |
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179 |
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180 function setValue(code) { |
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181 history = null; |
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182 var top = {line: 0, ch: 0}; |
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183 updateLines(top, {line: lines.length - 1, ch: lines[lines.length-1].text.length}, |
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184 splitLines(code), top, top); |
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185 history = new History(); |
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186 } |
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187 function getValue(code) { |
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188 var text = []; |
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189 for (var i = 0, l = lines.length; i < l; ++i) |
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190 text.push(lines[i].text); |
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191 return text.join("\n"); |
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192 } |
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193 |
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194 function onMouseDown(e) { |
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195 // First, see if this is a click in the gutter |
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196 for (var n = e.target(); n != wrapper; n = n.parentNode) |
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197 if (n.parentNode == gutterText) { |
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198 if (options.onGutterClick) |
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199 options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom); |
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200 return e.stop(); |
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201 } |
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202 |
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203 if (gecko && e.button() == 3) onContextMenu(e); |
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204 if (e.button() != 1) return; |
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205 // For button 1, if it was clicked inside the editor |
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206 // (posFromMouse returning non-null), we have to adjust the |
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207 // selection. |
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208 var start = posFromMouse(e), last = start, going; |
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209 if (!start) {if (e.target() == wrapper) e.stop(); return;} |
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210 setCursor(start.line, start.ch, false); |
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211 |
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212 if (!focused) onFocus(); |
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213 e.stop(); |
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214 // And then we have to see if it's a drag event, in which case |
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215 // the dragged-over text must be selected. |
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216 function end() { |
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217 input.focus(); |
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218 updateInput = true; |
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219 move(); up(); |
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220 } |
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221 function extend(e) { |
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222 var cur = posFromMouse(e, true); |
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223 if (cur && !posEq(cur, last)) { |
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224 if (!focused) onFocus(); |
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225 last = cur; |
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226 setSelection(start, cur); |
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227 updateInput = false; |
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228 var visible = visibleLines(); |
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229 if (cur.line >= visible.to || cur.line < visible.from) |
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230 going = setTimeout(operation(function(){extend(e);}), 150); |
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231 } |
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232 } |
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233 |
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234 var move = connect(document, "mousemove", operation(function(e) { |
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235 clearTimeout(going); |
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236 e.stop(); |
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237 extend(e); |
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238 }), true); |
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239 var up = connect(document, "mouseup", operation(function(e) { |
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240 clearTimeout(going); |
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241 var cur = posFromMouse(e); |
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242 if (cur) setSelection(start, cur); |
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243 e.stop(); |
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244 end(); |
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245 }), true); |
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246 } |
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247 function onDblClick(e) { |
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248 var pos = posFromMouse(e); |
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249 if (!pos) return; |
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250 selectWordAt(pos); |
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251 e.stop(); |
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252 } |
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253 function onDrop(e) { |
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254 var pos = posFromMouse(e, true), files = e.e.dataTransfer.files; |
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255 if (!pos || options.readOnly) return; |
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256 if (files && files.length && window.FileReader && window.File) { |
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257 var n = files.length, text = Array(n), read = 0; |
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258 for (var i = 0; i < n; ++i) loadFile(files[i], i); |
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259 function loadFile(file, i) { |
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260 var reader = new FileReader; |
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261 reader.onload = function() { |
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262 text[i] = reader.result; |
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263 if (++read == n) replaceRange(text.join(""), clipPos(pos), clipPos(pos)); |
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264 }; |
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265 reader.readAsText(file); |
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266 } |
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267 } |
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268 else { |
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269 try { |
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270 var text = e.e.dataTransfer.getData("Text"); |
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271 if (text) replaceRange(text, pos, pos); |
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272 } |
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273 catch(e){} |
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274 } |
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275 } |
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276 function onKeyDown(e) { |
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277 if (!focused) onFocus(); |
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278 |
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279 var code = e.e.keyCode; |
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280 // Tries to detect ctrl on non-mac, cmd on mac. |
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281 var mod = (mac ? e.e.metaKey : e.e.ctrlKey) && !e.e.altKey, anyMod = e.e.ctrlKey || e.e.altKey || e.e.metaKey; |
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282 if (code == 16 || e.e.shiftKey) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from); |
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283 else shiftSelecting = null; |
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284 // First give onKeyEvent option a chance to handle this. |
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285 if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e.e))) return; |
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286 |
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287 if (code == 33 || code == 34) {scrollPage(code == 34); return e.stop();} // page up/down |
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288 if (mod && (code == 36 || code == 35)) {scrollEnd(code == 36); return e.stop();} // ctrl-home/end |
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289 if (mod && code == 65) {selectAll(); return e.stop();} // ctrl-a |
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290 if (!options.readOnly) { |
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291 if (!anyMod && code == 13) {return;} // enter |
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292 if (!anyMod && code == 9 && handleTab(e.e.shiftKey)) return e.stop(); // tab |
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293 if (mod && code == 90) {undo(); return e.stop();} // ctrl-z |
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294 if (mod && ((e.e.shiftKey && code == 90) || code == 89)) {redo(); return e.stop();} // ctrl-shift-z, ctrl-y |
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295 } |
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296 |
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297 // Key id to use in the movementKeys map. We also pass it to |
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298 // fastPoll in order to 'self learn'. We need this because |
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299 // reducedSelection, the hack where we collapse the selection to |
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300 // its start when it is inverted and a movement key is pressed |
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301 // (and later restore it again), shouldn't be used for |
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302 // non-movement keys. |
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303 curKeyId = (mod ? "c" : "") + code; |
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304 if (sel.inverted && movementKeys.hasOwnProperty(curKeyId)) { |
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305 var range = selRange(input); |
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306 if (range) { |
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307 reducedSelection = {anchor: range.start}; |
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308 setSelRange(input, range.start, range.start); |
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309 } |
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310 } |
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311 fastPoll(curKeyId); |
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312 } |
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313 function onKeyUp(e) { |
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314 if (reducedSelection) { |
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315 reducedSelection = null; |
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316 updateInput = true; |
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317 } |
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318 if (e.e.keyCode == 16) shiftSelecting = null; |
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319 } |
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320 function onKeyPress(e) { |
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321 if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e.e))) return; |
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322 if (options.electricChars && mode.electricChars) { |
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323 var ch = String.fromCharCode(e.e.charCode == null ? e.e.keyCode : e.e.charCode); |
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324 if (mode.electricChars.indexOf(ch) > -1) |
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325 setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 50); |
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326 } |
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327 var code = e.e.keyCode; |
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328 // Re-stop tab and enter. Necessary on some browsers. |
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329 if (code == 13) {handleEnter(); e.stop();} |
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330 else if (code == 9 && options.tabMode != "default") e.stop(); |
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331 else fastPoll(curKeyId); |
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332 } |
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333 |
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334 function onFocus() { |
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335 if (!focused && options.onFocus) options.onFocus(instance); |
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336 focused = true; |
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337 slowPoll(); |
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338 if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1) |
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339 wrapper.className += " CodeMirror-focused"; |
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340 restartBlink(); |
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341 } |
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342 function onBlur() { |
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343 if (focused && options.onBlur) options.onBlur(instance); |
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344 clearInterval(blinker); |
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345 shiftSelecting = null; |
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346 focused = false; |
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347 wrapper.className = wrapper.className.replace(" CodeMirror-focused", ""); |
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348 } |
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349 |
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350 // Replace the range from from to to by the strings in newText. |
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351 // Afterwards, set the selection to selFrom, selTo. |
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352 function updateLines(from, to, newText, selFrom, selTo) { |
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353 if (history) { |
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354 var old = []; |
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355 for (var i = from.line, e = to.line + 1; i < e; ++i) old.push(lines[i].text); |
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356 history.addChange(from.line, newText.length, old); |
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357 while (history.done.length > options.undoDepth) history.done.shift(); |
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358 } |
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359 updateLinesNoUndo(from, to, newText, selFrom, selTo); |
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360 } |
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361 function unredoHelper(from, to) { |
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362 var change = from.pop(); |
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363 if (change) { |
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364 var replaced = [], end = change.start + change.added; |
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365 for (var i = change.start; i < end; ++i) replaced.push(lines[i].text); |
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366 to.push({start: change.start, added: change.old.length, old: replaced}); |
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367 var pos = clipPos({line: change.start + change.old.length - 1, |
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368 ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])}); |
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369 updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: lines[end-1].text.length}, change.old, pos, pos); |
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370 } |
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371 } |
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372 function undo() {unredoHelper(history.done, history.undone);} |
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373 function redo() {unredoHelper(history.undone, history.done);} |
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374 |
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375 function updateLinesNoUndo(from, to, newText, selFrom, selTo) { |
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376 var nlines = to.line - from.line, firstLine = lines[from.line], lastLine = lines[to.line]; |
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377 // First adjust the line structure, taking some care to leave highlighting intact. |
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378 if (firstLine == lastLine) { |
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379 if (newText.length == 1) |
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380 firstLine.replace(from.ch, to.ch, newText[0]); |
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381 else { |
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382 lastLine = firstLine.split(to.ch, newText[newText.length-1]); |
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383 var spliceargs = [from.line + 1, nlines]; |
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384 firstLine.replace(from.ch, firstLine.text.length, newText[0]); |
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385 for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i])); |
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386 spliceargs.push(lastLine); |
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387 lines.splice.apply(lines, spliceargs); |
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388 } |
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389 } |
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390 else if (newText.length == 1) { |
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391 firstLine.replace(from.ch, firstLine.text.length, newText[0] + lastLine.text.slice(to.ch)); |
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392 lines.splice(from.line + 1, nlines); |
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393 } |
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394 else { |
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395 var spliceargs = [from.line + 1, nlines - 1]; |
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396 firstLine.replace(from.ch, firstLine.text.length, newText[0]); |
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397 lastLine.replace(0, to.ch, newText[newText.length-1]); |
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398 for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i])); |
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399 lines.splice.apply(lines, spliceargs); |
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400 } |
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401 |
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402 // Add these lines to the work array, so that they will be |
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403 // highlighted. Adjust work lines if lines were added/removed. |
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404 var newWork = [], lendiff = newText.length - nlines - 1; |
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405 for (var i = 0, l = work.length; i < l; ++i) { |
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406 var task = work[i]; |
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407 if (task < from.line) newWork.push(task); |
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408 else if (task > to.line) newWork.push(task + lendiff); |
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409 } |
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410 if (newText.length) newWork.push(from.line); |
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411 work = newWork; |
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412 startWorker(100); |
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413 // Remember that these lines changed, for updating the display |
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414 changes.push({from: from.line, to: to.line + 1, diff: lendiff}); |
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415 textChanged = true; |
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416 |
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417 // Update the selection |
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418 function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;} |
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419 setSelection(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line)); |
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420 |
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421 // Make sure the scroll-size div has the correct height. |
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422 code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px"; |
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423 } |
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424 |
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425 function replaceRange(code, from, to) { |
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426 from = clipPos(from); |
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427 if (!to) to = from; else to = clipPos(to); |
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428 code = splitLines(code); |
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429 function adjustPos(pos) { |
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430 if (posLess(pos, from)) return pos; |
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431 if (!posLess(to, pos)) return end; |
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432 var line = pos.line + code.length - (to.line - from.line) - 1; |
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433 var ch = pos.ch; |
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434 if (pos.line == to.line) |
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435 ch += code[code.length-1].length - (to.ch - (to.line == from.line ? from.ch : 0)); |
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436 return {line: line, ch: ch}; |
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437 } |
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438 var end; |
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439 replaceRange1(code, from, to, function(end1) { |
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440 end = end1; |
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441 return {from: adjustPos(sel.from), to: adjustPos(sel.to)}; |
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442 }); |
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443 return end; |
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444 } |
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445 function replaceSelection(code, collapse) { |
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446 replaceRange1(splitLines(code), sel.from, sel.to, function(end) { |
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447 if (collapse == "end") return {from: end, to: end}; |
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448 else if (collapse == "start") return {from: sel.from, to: sel.from}; |
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449 else return {from: sel.from, to: end}; |
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450 }); |
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451 } |
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452 function replaceRange1(code, from, to, computeSel) { |
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453 var endch = code.length == 1 ? code[0].length + from.ch : code[code.length-1].length; |
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454 var newSel = computeSel({line: from.line + code.length - 1, ch: endch}); |
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455 updateLines(from, to, code, newSel.from, newSel.to); |
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456 } |
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457 |
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458 function getRange(from, to) { |
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459 var l1 = from.line, l2 = to.line; |
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460 if (l1 == l2) return lines[l1].text.slice(from.ch, to.ch); |
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461 var code = [lines[l1].text.slice(from.ch)]; |
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462 for (var i = l1 + 1; i < l2; ++i) code.push(lines[i].text); |
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463 code.push(lines[l2].text.slice(0, to.ch)); |
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464 return code.join("\n"); |
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465 } |
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466 function getSelection() { |
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467 return getRange(sel.from, sel.to); |
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468 } |
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469 |
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470 var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll |
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471 function slowPoll() { |
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472 if (pollingFast) return; |
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473 poll.set(2000, function() { |
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474 startOperation(); |
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475 readInput(); |
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476 if (focused) slowPoll(); |
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477 endOperation(); |
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478 }); |
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479 } |
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480 function fastPoll(keyId) { |
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481 var missed = false; |
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482 pollingFast = true; |
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483 function p() { |
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484 startOperation(); |
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485 var changed = readInput(); |
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486 if (changed == "moved" && keyId) movementKeys[keyId] = true; |
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487 if (!changed && !missed) {missed = true; poll.set(80, p);} |
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488 else {pollingFast = false; slowPoll();} |
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489 endOperation(); |
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490 } |
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491 poll.set(20, p); |
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492 } |
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493 |
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494 // Inspects the textarea, compares its state (content, selection) |
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495 // to the data in the editing variable, and updates the editor |
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496 // content or cursor if something changed. |
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497 function readInput() { |
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498 var changed = false, text = input.value, sr = selRange(input); |
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499 if (!sr) return false; |
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500 var changed = editing.text != text, rs = reducedSelection; |
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501 var moved = changed || sr.start != editing.start || sr.end != (rs ? editing.start : editing.end); |
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502 if (reducedSelection && !moved && sel.from.line == 0 && sel.from.ch == 0) |
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503 reducedSelection = null; |
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504 else if (!moved) return false; |
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505 if (changed) { |
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506 shiftSelecting = reducedSelection = null; |
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507 if (options.readOnly) {updateInput = true; return "changed";} |
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508 } |
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509 |
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510 // Compute selection start and end based on start/end offsets in textarea |
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511 function computeOffset(n, startLine) { |
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512 var pos = 0; |
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513 for (;;) { |
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514 var found = text.indexOf("\n", pos); |
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515 if (found == -1 || (text.charAt(found-1) == "\r" ? found - 1 : found) >= n) |
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516 return {line: startLine, ch: n - pos}; |
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517 ++startLine; |
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518 pos = found + 1; |
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519 } |
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520 } |
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521 var from = computeOffset(sr.start, editing.from), |
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522 to = computeOffset(sr.end, editing.from); |
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523 // Here we have to take the reducedSelection hack into account, |
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524 // so that you can, for example, press shift-up at the start of |
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525 // your selection and have the right thing happen. |
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526 if (rs) { |
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527 from = sr.start == rs.anchor ? to : from; |
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528 to = shiftSelecting ? sel.to : sr.start == rs.anchor ? from : to; |
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529 if (!posLess(from, to)) { |
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530 reducedSelection = null; |
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531 sel.inverted = false; |
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532 var tmp = from; from = to; to = tmp; |
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533 } |
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534 } |
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535 |
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536 // In some cases (cursor on same line as before), we don't have |
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537 // to update the textarea content at all. |
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538 if (from.line == to.line && from.line == sel.from.line && from.line == sel.to.line && !shiftSelecting) |
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539 updateInput = false; |
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540 |
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541 // Magic mess to extract precise edited range from the changed |
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542 // string. |
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543 if (changed) { |
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544 var start = 0, end = text.length, len = Math.min(end, editing.text.length); |
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545 var c, line = editing.from, nl = -1; |
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546 while (start < len && (c = text.charAt(start)) == editing.text.charAt(start)) { |
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547 ++start; |
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548 if (c == "\n") {line++; nl = start;} |
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549 } |
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550 var ch = nl > -1 ? start - nl : start, endline = editing.to - 1, edend = editing.text.length; |
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551 for (;;) { |
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552 c = editing.text.charAt(edend); |
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553 if (c == "\n") endline--; |
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554 if (text.charAt(end) != c) {++end; ++edend; break;} |
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555 if (edend <= start || end <= start) break; |
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556 --end; --edend; |
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557 } |
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558 var nl = editing.text.lastIndexOf("\n", edend - 1), endch = nl == -1 ? edend : edend - nl - 1; |
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559 updateLines({line: line, ch: ch}, {line: endline, ch: endch}, splitLines(text.slice(start, end)), from, to); |
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560 if (line != endline || from.line != line) updateInput = true; |
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561 } |
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562 else setSelection(from, to); |
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563 |
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564 editing.text = text; editing.start = sr.start; editing.end = sr.end; |
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565 return changed ? "changed" : moved ? "moved" : false; |
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566 } |
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567 |
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568 // Set the textarea content and selection range to match the |
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569 // editor state. |
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570 function prepareInput() { |
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571 var text = []; |
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572 var from = Math.max(0, sel.from.line - 1), to = Math.min(lines.length, sel.to.line + 2); |
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573 for (var i = from; i < to; ++i) text.push(lines[i].text); |
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574 text = input.value = text.join(lineSep); |
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575 var startch = sel.from.ch, endch = sel.to.ch; |
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576 for (var i = from; i < sel.from.line; ++i) |
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577 startch += lineSep.length + lines[i].text.length; |
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578 for (var i = from; i < sel.to.line; ++i) |
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579 endch += lineSep.length + lines[i].text.length; |
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580 editing = {text: text, from: from, to: to, start: startch, end: endch}; |
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581 setSelRange(input, startch, reducedSelection ? startch : endch); |
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582 } |
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583 |
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584 function scrollCursorIntoView() { |
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585 var cursor = localCoords(sel.inverted ? sel.from : sel.to); |
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586 return scrollIntoView(cursor.x, cursor.y, cursor.x, cursor.yBot); |
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587 } |
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588 function scrollIntoView(x1, y1, x2, y2) { |
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589 var pl = paddingLeft(), pt = paddingTop(); |
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590 y1 += pt; y2 += pt; x1 += pl; x2 += pl; |
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591 var screen = wrapper.clientHeight, screentop = wrapper.scrollTop, scrolled = false, result = true; |
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592 if (y1 < screentop) {wrapper.scrollTop = Math.max(0, y1 - 10); scrolled = true;} |
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593 else if (y2 > screentop + screen) {wrapper.scrollTop = y2 + 10 - screen; scrolled = true;} |
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594 |
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595 var screenw = wrapper.clientWidth, screenleft = wrapper.scrollLeft; |
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596 if (x1 < screenleft) {wrapper.scrollLeft = Math.max(0, x1 - 10); scrolled = true;} |
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597 else if (x2 > screenw + screenleft) { |
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598 wrapper.scrollLeft = x2 + 10 - screenw; |
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599 scrolled = true; |
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600 if (x2 > code.clientWidth) result = false; |
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601 } |
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602 if (scrolled && options.onScroll) options.onScroll(instance); |
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603 return result; |
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604 } |
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605 |
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606 function visibleLines() { |
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607 var lh = lineHeight(), top = wrapper.scrollTop - paddingTop(); |
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608 return {from: Math.min(lines.length, Math.max(0, Math.floor(top / lh))), |
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609 to: Math.min(lines.length, Math.ceil((top + wrapper.clientHeight) / lh))}; |
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610 } |
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611 // Uses a set of changes plus the current scroll position to |
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612 // determine which DOM updates have to be made, and makes the |
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613 // updates. |
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614 function updateDisplay(changes) { |
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615 if (!wrapper.clientWidth) { |
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616 showingFrom = showingTo = 0; |
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617 return; |
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618 } |
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619 // First create a range of theoretically intact lines, and punch |
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620 // holes in that using the change info. |
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changeset
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621 var intact = changes === true ? [] : [{from: showingFrom, to: showingTo, domStart: 0}]; |
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622 for (var i = 0, l = changes.length || 0; i < l; ++i) { |
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623 var change = changes[i], intact2 = [], diff = change.diff || 0; |
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parents:
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624 for (var j = 0, l2 = intact.length; j < l2; ++j) { |
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625 var range = intact[j]; |
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626 if (change.to <= range.from) |
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627 intact2.push({from: range.from + diff, to: range.to + diff, domStart: range.domStart}); |
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628 else if (range.to <= change.from) |
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629 intact2.push(range); |
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630 else { |
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|
631 if (change.from > range.from) |
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parents:
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632 intact2.push({from: range.from, to: change.from, domStart: range.domStart}) |
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633 if (change.to < range.to) |
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634 intact2.push({from: change.to + diff, to: range.to + diff, |
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635 domStart: range.domStart + (change.to - range.from)}); |
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636 } |
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637 } |
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638 intact = intact2; |
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639 } |
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640 |
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641 // Then, determine which lines we'd want to see, and which |
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642 // updates have to be made to get there. |
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changeset
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643 var visible = visibleLines(); |
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644 var from = Math.min(showingFrom, Math.max(visible.from - 3, 0)), |
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645 to = Math.min(lines.length, Math.max(showingTo, visible.to + 3)), |
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646 updates = [], domPos = 0, domEnd = showingTo - showingFrom, pos = from, changedLines = 0; |
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647 |
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648 for (var i = 0, l = intact.length; i < l; ++i) { |
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649 var range = intact[i]; |
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parents:
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650 if (range.to <= from) continue; |
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651 if (range.from >= to) break; |
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652 if (range.domStart > domPos || range.from > pos) { |
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653 updates.push({from: pos, to: range.from, domSize: range.domStart - domPos, domStart: domPos}); |
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654 changedLines += range.from - pos; |
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655 } |
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656 pos = range.to; |
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657 domPos = range.domStart + (range.to - range.from); |
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parents:
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658 } |
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parents:
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659 if (domPos != domEnd || pos != to) { |
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660 changedLines += Math.abs(to - pos); |
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661 updates.push({from: pos, to: to, domSize: domEnd - domPos, domStart: domPos}); |
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662 } |
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663 |
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664 if (!updates.length) return; |
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665 lineDiv.style.display = "none"; |
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666 // If more than 30% of the screen needs update, just do a full |
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667 // redraw (which is quicker than patching) |
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668 if (changedLines > (visible.to - visible.from) * .3) |
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669 refreshDisplay(from = Math.max(visible.from - 10, 0), to = Math.min(visible.to + 7, lines.length)); |
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670 // Otherwise, only update the stuff that needs updating. |
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671 else |
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672 patchDisplay(updates); |
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673 lineDiv.style.display = ""; |
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674 |
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675 // Position the mover div to align with the lines it's supposed |
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676 // to be showing (which will cover the visible display) |
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677 var different = from != showingFrom || to != showingTo || lastHeight != wrapper.clientHeight; |
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678 showingFrom = from; showingTo = to; |
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679 mover.style.top = (from * lineHeight()) + "px"; |
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680 if (different) { |
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681 lastHeight = wrapper.clientHeight; |
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682 code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px"; |
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683 updateGutter(); |
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684 } |
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685 |
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686 // Since this is all rather error prone, it is honoured with the |
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687 // only assertion in the whole file. |
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688 if (lineDiv.childNodes.length != showingTo - showingFrom) |
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689 throw new Error("BAD PATCH! " + JSON.stringify(updates) + " size=" + (showingTo - showingFrom) + |
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690 " nodes=" + lineDiv.childNodes.length); |
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691 updateCursor(); |
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692 } |
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693 |
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parents:
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694 function refreshDisplay(from, to) { |
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parents:
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695 var html = [], start = {line: from, ch: 0}, inSel = posLess(sel.from, start) && !posLess(sel.to, start); |
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696 for (var i = from; i < to; ++i) { |
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697 var ch1 = null, ch2 = null; |
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698 if (inSel) { |
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699 ch1 = 0; |
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700 if (sel.to.line == i) {inSel = false; ch2 = sel.to.ch;} |
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701 } |
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702 else if (sel.from.line == i) { |
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703 if (sel.to.line == i) {ch1 = sel.from.ch; ch2 = sel.to.ch;} |
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704 else {inSel = true; ch1 = sel.from.ch;} |
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705 } |
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706 html.push(lines[i].getHTML(ch1, ch2, true)); |
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707 } |
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parents:
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708 lineDiv.innerHTML = html.join(""); |
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709 } |
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710 function patchDisplay(updates) { |
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parents:
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711 // Slightly different algorithm for IE (badInnerHTML), since |
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parents:
diff
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712 // there .innerHTML on PRE nodes is dumb, and discards |
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parents:
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713 // whitespace. |
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714 var sfrom = sel.from.line, sto = sel.to.line, off = 0, |
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715 scratch = badInnerHTML && document.createElement("div"); |
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716 for (var i = 0, e = updates.length; i < e; ++i) { |
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parents:
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717 var rec = updates[i]; |
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parents:
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718 var extra = (rec.to - rec.from) - rec.domSize; |
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parents:
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719 var nodeAfter = lineDiv.childNodes[rec.domStart + rec.domSize + off] || null; |
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720 if (badInnerHTML) |
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721 for (var j = Math.max(-extra, rec.domSize); j > 0; --j) |
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parents:
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722 lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild); |
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parents:
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723 else if (extra) { |
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parents:
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724 for (var j = Math.max(0, extra); j > 0; --j) |
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725 lineDiv.insertBefore(document.createElement("pre"), nodeAfter); |
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parents:
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726 for (var j = Math.max(0, -extra); j > 0; --j) |
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parents:
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727 lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild); |
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parents:
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728 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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729 var node = lineDiv.childNodes[rec.domStart + off], inSel = sfrom < rec.from && sto >= rec.from; |
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730 for (var j = rec.from; j < rec.to; ++j) { |
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731 var ch1 = null, ch2 = null; |
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parents:
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732 if (inSel) { |
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parents:
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733 ch1 = 0; |
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parents:
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734 if (sto == j) {inSel = false; ch2 = sel.to.ch;} |
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parents:
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735 } |
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parents:
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736 else if (sfrom == j) { |
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parents:
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737 if (sto == j) {ch1 = sel.from.ch; ch2 = sel.to.ch;} |
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738 else {inSel = true; ch1 = sel.from.ch;} |
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parents:
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739 } |
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parents:
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740 if (badInnerHTML) { |
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parents:
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741 scratch.innerHTML = lines[j].getHTML(ch1, ch2, true); |
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parents:
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742 lineDiv.insertBefore(scratch.firstChild, nodeAfter); |
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parents:
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743 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
744 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
745 node.innerHTML = lines[j].getHTML(ch1, ch2, false); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
746 node.className = lines[j].className || ""; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
747 node = node.nextSibling; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
748 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
749 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
750 off += extra; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
751 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
752 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
753 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
754 function updateGutter() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
755 if (!options.gutter && !options.lineNumbers) return; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
756 var hText = mover.offsetHeight, hEditor = wrapper.clientHeight; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
757 gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
758 var html = []; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
759 for (var i = showingFrom; i < showingTo; ++i) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
760 var marker = lines[i].gutterMarker; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
761 var text = options.lineNumbers ? i + options.firstLineNumber : null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
762 if (marker && marker.text) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
763 text = marker.text.replace("%N%", text != null ? text : ""); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
764 else if (text == null) |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
765 text = "\u00a0"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
766 html.push((marker && marker.style ? '<pre class="' + marker.style + '">' : "<pre>"), text, "</pre>"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
767 } |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
768 gutter.style.display = "none"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
769 gutterText.innerHTML = html.join(""); |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
770 var minwidth = String(lines.length).length, firstNode = gutterText.firstChild, val = eltText(firstNode), pad = ""; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
771 while (val.length + pad.length < minwidth) pad += "\u00a0"; |
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parents:
diff
changeset
|
772 if (pad) firstNode.insertBefore(document.createTextNode(pad), firstNode.firstChild); |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
773 gutter.style.display = ""; |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
774 lineSpace.style.marginLeft = gutter.offsetWidth + "px"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
775 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
776 function updateCursor() { |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
777 var head = sel.inverted ? sel.from : sel.to; |
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parents:
diff
changeset
|
778 var x = charX(head.line, head.ch) + "px", y = (head.line - showingFrom) * lineHeight() + "px"; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
779 inputDiv.style.top = y; inputDiv.style.left = x; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
780 if (posEq(sel.from, sel.to)) { |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
781 cursor.style.top = y; cursor.style.left = x; |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
782 cursor.style.display = ""; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
783 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
784 else cursor.style.display = "none"; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
785 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
786 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
787 // Update the selection. Last two args are only used by |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
788 // updateLines, since they have to be expressed in the line |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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789 // numbers before the update. |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
790 function setSelection(from, to, oldFrom, oldTo) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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791 if (posEq(sel.from, from) && posEq(sel.to, to)) return; |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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792 var sh = shiftSelecting && clipPos(shiftSelecting); |
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parents:
diff
changeset
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793 if (posLess(to, from)) {var tmp = to; to = from; from = tmp;} |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
794 if (sh) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
795 if (posLess(sh, from)) from = sh; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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796 else if (posLess(to, sh)) to = sh; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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797 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
798 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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799 var startEq = posEq(sel.to, to), endEq = posEq(sel.from, from); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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800 if (posEq(from, to)) sel.inverted = false; |
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parents:
diff
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801 else if (startEq && !endEq) sel.inverted = true; |
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parents:
diff
changeset
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802 else if (endEq && !startEq) sel.inverted = false; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
803 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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804 // Some ugly logic used to only mark the lines that actually did |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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805 // see a change in selection as changed, rather than the whole |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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806 // selected range. |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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807 if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;} |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
808 if (posEq(from, to)) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
809 if (!posEq(sel.from, sel.to)) |
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parents:
diff
changeset
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810 changes.push({from: oldFrom, to: oldTo + 1}); |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
811 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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812 else if (posEq(sel.from, sel.to)) { |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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813 changes.push({from: from.line, to: to.line + 1}); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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814 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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815 else { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
816 if (!posEq(from, sel.from)) { |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
817 if (from.line < oldFrom) |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
818 changes.push({from: from.line, to: Math.min(to.line, oldFrom) + 1}); |
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Added server side file editing with commit
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parents:
diff
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819 else |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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820 changes.push({from: oldFrom, to: Math.min(oldTo, from.line) + 1}); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
821 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
822 if (!posEq(to, sel.to)) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
823 if (to.line < oldTo) |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
824 changes.push({from: Math.max(oldFrom, from.line), to: oldTo + 1}); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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825 else |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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826 changes.push({from: Math.max(from.line, oldTo), to: to.line + 1}); |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
827 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
828 } |
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parents:
diff
changeset
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829 sel.from = from; sel.to = to; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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830 selectionChanged = true; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
831 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
832 function setCursor(line, ch) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
833 var pos = clipPos({line: line, ch: ch || 0}); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
834 setSelection(pos, pos); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
835 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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|
836 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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837 function clipLine(n) {return Math.max(0, Math.min(n, lines.length-1));} |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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838 function clipPos(pos) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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839 if (pos.line < 0) return {line: 0, ch: 0}; |
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parents:
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840 if (pos.line >= lines.length) return {line: lines.length-1, ch: lines[lines.length-1].text.length}; |
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parents:
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841 var ch = pos.ch, linelen = lines[pos.line].text.length; |
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parents:
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842 if (ch == null || ch > linelen) return {line: pos.line, ch: linelen}; |
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parents:
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843 else if (ch < 0) return {line: pos.line, ch: 0}; |
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parents:
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844 else return pos; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
845 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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|
846 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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847 function scrollPage(down) { |
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parents:
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848 var linesPerPage = Math.floor(wrapper.clientHeight / lineHeight()), head = sel.inverted ? sel.from : sel.to; |
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parents:
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849 setCursor(head.line + (Math.max(linesPerPage - 1, 1) * (down ? 1 : -1)), head.ch); |
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parents:
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850 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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851 function scrollEnd(top) { |
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parents:
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852 setCursor(top ? 0 : lines.length - 1); |
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parents:
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853 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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854 function selectAll() { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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855 var endLine = lines.length - 1; |
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parents:
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856 setSelection({line: 0, ch: 0}, {line: endLine, ch: lines[endLine].text.length}); |
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parents:
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857 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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858 function selectWordAt(pos) { |
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parents:
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859 var line = lines[pos.line].text; |
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parents:
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860 var start = pos.ch, end = pos.ch; |
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parents:
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861 while (start > 0 && /\w/.test(line.charAt(start - 1))) --start; |
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parents:
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862 while (end < line.length - 1 && /\w/.test(line.charAt(end))) ++end; |
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parents:
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863 setSelection({line: pos.line, ch: start}, {line: pos.line, ch: end}); |
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parents:
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864 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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865 function handleEnter() { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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|
866 replaceSelection("\n", "end"); |
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parents:
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changeset
|
867 if (options.enterMode != "flat") |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
868 indentLine(sel.from.line, options.enterMode == "keep" ? "prev" : "smart"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
869 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
870 function handleTab(shift) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
871 shiftSelecting = null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
872 switch (options.tabMode) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
873 case "default": |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
874 return false; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
875 case "indent": |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
876 for (var i = sel.from.line, e = sel.to.line; i <= e; ++i) indentLine(i, "smart"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
877 break; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
878 case "classic": |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
879 if (posEq(sel.from, sel.to)) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
880 if (shift) indentLine(sel.from.line, "smart"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
881 else replaceSelection("\t", "end"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
882 break; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
883 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
884 case "shift": |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
885 for (var i = sel.from.line, e = sel.to.line; i <= e; ++i) indentLine(i, shift ? "subtract" : "add"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
886 break; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
887 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
888 return true; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
889 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
890 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
891 function indentLine(n, how) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
892 if (how == "smart") { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
893 if (!mode.indent) how = "prev"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
894 else var state = getStateBefore(n); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
895 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
896 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
897 var line = lines[n], curSpace = line.indentation(), curSpaceString = line.text.match(/^\s*/)[0], indentation; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
898 if (how == "prev") { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
899 if (n) indentation = lines[n-1].indentation(); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
900 else indentation = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
901 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
902 else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length)); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
903 else if (how == "add") indentation = curSpace + options.indentUnit; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
904 else if (how == "subtract") indentation = curSpace - options.indentUnit; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
905 indentation = Math.max(0, indentation); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
906 var diff = indentation - curSpace; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
907 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
908 if (!diff) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
909 if (sel.from.line != n && sel.to.line != n) return; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
910 var indentString = curSpaceString; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
911 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
912 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
913 var indentString = "", pos = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
914 if (options.indentWithTabs) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
915 for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
916 while (pos < indentation) {++pos; indentString += " ";} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
917 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
918 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
919 replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length}); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
920 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
921 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
922 function loadMode() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
923 mode = CodeMirror.getMode(options, options.mode); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
924 for (var i = 0, l = lines.length; i < l; ++i) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
925 lines[i].stateAfter = null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
926 work = [0]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
927 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
928 function gutterChanged() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
929 var visible = options.gutter || options.lineNumbers; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
930 gutter.style.display = visible ? "" : "none"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
931 if (visible) updateGutter(); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
932 else lineDiv.parentNode.style.marginLeft = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
933 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
934 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
935 function markText(from, to, className) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
936 from = clipPos(from); to = clipPos(to); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
937 var accum = []; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
938 function add(line, from, to, className) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
939 var line = lines[line], mark = line.addMark(from, to, className); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
940 mark.line = line; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
941 accum.push(mark); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
942 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
943 if (from.line == to.line) add(from.line, from.ch, to.ch, className); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
944 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
945 add(from.line, from.ch, null, className); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
946 for (var i = from.line + 1, e = to.line; i < e; ++i) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
947 add(i, 0, null, className); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
948 add(to.line, 0, to.ch, className); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
949 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
950 changes.push({from: from.line, to: to.line + 1}); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
951 return function() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
952 var start, end; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
953 for (var i = 0; i < accum.length; ++i) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
954 var mark = accum[i], found = indexOf(lines, mark.line); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
955 mark.line.removeMark(mark); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
956 if (found > -1) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
957 if (start == null) start = found; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
958 end = found; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
959 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
960 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
961 if (start != null) changes.push({from: start, to: end + 1}); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
962 }; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
963 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
964 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
965 function addGutterMarker(line, text, className) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
966 if (typeof line == "number") line = lines[clipLine(line)]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
967 line.gutterMarker = {text: text, style: className}; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
968 updateGutter(); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
969 return line; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
970 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
971 function removeGutterMarker(line) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
972 if (typeof line == "number") line = lines[clipLine(line)]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
973 line.gutterMarker = null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
974 updateGutter(); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
975 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
976 function setLineClass(line, className) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
977 if (typeof line == "number") { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
978 var no = line; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
979 line = lines[clipLine(line)]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
980 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
981 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
982 var no = indexOf(lines, line); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
983 if (no == -1) return null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
984 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
985 line.className = className; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
986 changes.push({from: no, to: no + 1}); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
987 return line; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
988 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
989 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
990 function lineInfo(line) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
991 if (typeof line == "number") { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
992 var n = line; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
993 line = lines[line]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
994 if (!line) return null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
995 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
996 else { |
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997 var n = indexOf(lines, line); |
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998 if (n == -1) return null; |
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999 } |
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1000 var marker = line.gutterMarker; |
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1001 return {line: n, text: line.text, markerText: marker && marker.text, markerClass: marker && marker.style}; |
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1002 } |
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1003 |
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1004 // These are used to go from pixel positions to character |
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1005 // positions, taking tabs into account. |
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1006 function charX(line, pos) { |
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1007 var text = lines[line].text, span = measure.firstChild; |
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1008 if (text.lastIndexOf("\t", pos) == -1) return pos * charWidth(); |
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1009 var old = span.firstChild.nodeValue; |
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1010 try { |
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1011 span.firstChild.nodeValue = text.slice(0, pos); |
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1012 return span.offsetWidth; |
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1013 } finally {span.firstChild.nodeValue = old;} |
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1014 } |
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1015 function charFromX(line, x) { |
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1016 var text = lines[line].text, cw = charWidth(); |
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1017 if (x <= 0) return 0; |
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1018 if (text.indexOf("\t") == -1) return Math.min(text.length, Math.round(x / cw)); |
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1019 var mspan = measure.firstChild, mtext = mspan.firstChild, old = mtext.nodeValue; |
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1020 try { |
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1021 mtext.nodeValue = text; |
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1022 var from = 0, fromX = 0, to = text.length, toX = mspan.offsetWidth; |
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1023 if (x > toX) return to; |
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1024 for (;;) { |
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1025 if (to - from <= 1) return (toX - x > x - fromX) ? from : to; |
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1026 var middle = Math.ceil((from + to) / 2); |
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1027 mtext.nodeValue = text.slice(0, middle); |
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1028 var curX = mspan.offsetWidth; |
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1029 if (curX > x) {to = middle; toX = curX;} |
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1030 else {from = middle; fromX = curX;} |
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1031 } |
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1032 } finally {mtext.nodeValue = old;} |
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1033 } |
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1034 |
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1035 function localCoords(pos, inLineWrap) { |
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1036 var lh = lineHeight(), line = pos.line - (inLineWrap ? showingFrom : 0); |
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1037 return {x: charX(pos.line, pos.ch), y: line * lh, yBot: (line + 1) * lh}; |
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1038 } |
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1039 function pageCoords(pos) { |
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1040 var local = localCoords(pos, true), off = eltOffset(lineSpace); |
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1041 return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot}; |
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1042 } |
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1043 |
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1044 function lineHeight() { |
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1045 var nlines = lineDiv.childNodes.length; |
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1046 if (nlines) return lineDiv.offsetHeight / nlines; |
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1047 else return measure.firstChild.offsetHeight || 1; |
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1048 } |
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1049 function charWidth() {return (measure.firstChild.offsetWidth || 320) / 40;} |
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1050 function paddingTop() {return lineSpace.offsetTop;} |
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1051 function paddingLeft() {return lineSpace.offsetLeft;} |
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1052 |
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1053 function posFromMouse(e, liberal) { |
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1054 var off = eltOffset(lineSpace), |
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1055 x = e.pageX() - off.left, |
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1056 y = e.pageY() - off.top; |
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1057 if (!liberal && e.target() != lineSpace.parentNode && !(e.target() == wrapper && y > (lines.length * lineHeight()))) |
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1058 for (var n = e.target(); n != lineDiv && n != cursor; n = n.parentNode) |
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1059 if (!n || n == wrapper) return null; |
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1060 var line = showingFrom + Math.floor(y / lineHeight()); |
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1061 return clipPos({line: line, ch: charFromX(clipLine(line), x)}); |
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1062 } |
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1063 function onContextMenu(e) { |
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1064 var pos = posFromMouse(e); |
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1065 if (!pos || window.opera) return; // Opera is difficult. |
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1066 if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to)) |
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1067 setCursor(pos.line, pos.ch); |
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1068 |
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1069 var oldCSS = input.style.cssText; |
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1070 input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.pageY() - 1) + |
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1071 "px; left: " + (e.pageX() - 1) + "px; z-index: 1000; background: white; " + |
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1072 "border-width: 0; outline: none; overflow: hidden;"; |
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1073 var val = input.value = getSelection(); |
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1074 input.focus(); |
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1075 setSelRange(input, 0, val.length); |
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1076 if (gecko) e.stop(); |
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1077 leaveInputAlone = true; |
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1078 setTimeout(function() { |
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1079 if (input.value != val) operation(replaceSelection)(input.value, "end"); |
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1080 input.style.cssText = oldCSS; |
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1081 leaveInputAlone = false; |
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1082 prepareInput(); |
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1083 slowPoll(); |
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1084 }, 50); |
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1085 } |
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1086 |
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1087 // Cursor-blinking |
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1088 function restartBlink() { |
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1089 clearInterval(blinker); |
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1090 var on = true; |
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1091 cursor.style.visibility = ""; |
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1092 blinker = setInterval(function() { |
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1093 cursor.style.visibility = (on = !on) ? "" : "hidden"; |
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1094 }, 650); |
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1095 } |
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1096 |
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1097 var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"}; |
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1098 function matchBrackets(autoclear) { |
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1099 var head = sel.inverted ? sel.from : sel.to, line = lines[head.line], pos = head.ch - 1; |
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1100 var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)]; |
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1101 if (!match) return; |
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1102 var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles; |
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1103 for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2) |
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1104 if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;} |
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1105 |
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1106 var stack = [line.text.charAt(pos)], re = /[(){}[\]]/; |
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1107 function scan(line, from, to) { |
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1108 if (!line.text) return; |
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1109 var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur; |
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1110 for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) { |
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1111 var text = st[i]; |
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1112 if (st[i+1] != null && st[i+1] != style) {pos += d * text.length; continue;} |
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1113 for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) { |
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1114 if (pos >= from && pos < to && re.test(cur = text.charAt(j))) { |
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1115 var match = matching[cur]; |
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1116 if (match.charAt(1) == ">" == forward) stack.push(cur); |
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1117 else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false}; |
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1118 else if (!stack.length) return {pos: pos, match: true}; |
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1119 } |
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1120 } |
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1121 } |
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1122 } |
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1123 for (var i = head.line, e = forward ? Math.min(i + 50, lines.length) : Math.max(0, i - 50); i != e; i+=d) { |
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1124 var line = lines[i], first = i == head.line; |
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1125 var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length); |
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1126 if (found) { |
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1127 var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket"; |
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1128 var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style), |
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1129 two = markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style); |
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1130 var clear = operation(function(){one(); two();}); |
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1131 if (autoclear) setTimeout(clear, 800); |
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1132 else bracketHighlighted = clear; |
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1133 break; |
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1134 } |
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1135 } |
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1136 } |
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1137 |
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1138 // Finds the line to start with when starting a parse. Tries to |
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1139 // find a line with a stateAfter, so that it can start with a |
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1140 // valid state. If that fails, it returns the line with the |
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1141 // smallest indentation, which tends to need the least context to |
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1142 // parse correctly. |
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1143 function findStartLine(n) { |
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1144 var minindent, minline; |
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1145 for (var search = n, lim = n - 40; search > lim; --search) { |
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1146 if (search == 0) return 0; |
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1147 var line = lines[search-1]; |
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1148 if (line.stateAfter) return search; |
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1149 var indented = line.indentation(); |
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1150 if (minline == null || minindent > indented) { |
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1151 minline = search; |
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1152 minindent = indented; |
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1153 } |
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1154 } |
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1155 return minline; |
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1156 } |
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1157 function getStateBefore(n) { |
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1158 var start = findStartLine(n), state = start && lines[start-1].stateAfter; |
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1159 if (!state) state = startState(mode); |
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1160 else state = copyState(mode, state); |
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1161 for (var i = start; i < n; ++i) { |
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1162 var line = lines[i]; |
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1163 line.highlight(mode, state); |
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1164 line.stateAfter = copyState(mode, state); |
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1165 } |
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1166 if (!lines[n].stateAfter) work.push(n); |
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1167 return state; |
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1168 } |
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1169 function highlightWorker() { |
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1170 var end = +new Date + options.workTime; |
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1171 while (work.length) { |
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1172 if (!lines[showingFrom].stateAfter) var task = showingFrom; |
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1173 else var task = work.pop(); |
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1174 if (task >= lines.length) continue; |
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1175 var start = findStartLine(task), state = start && lines[start-1].stateAfter; |
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1176 if (state) state = copyState(mode, state); |
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1177 else state = startState(mode); |
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1178 |
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1179 for (var i = start, l = lines.length; i < l; ++i) { |
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1180 var line = lines[i], hadState = line.stateAfter; |
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1181 if (+new Date > end) { |
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1182 work.push(i); |
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1183 startWorker(options.workDelay); |
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1184 changes.push({from: task, to: i}); |
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1185 return; |
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1186 } |
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1187 var changed = line.highlight(mode, state); |
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1188 line.stateAfter = copyState(mode, state); |
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1189 if (hadState && !changed && line.text) break; |
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1190 } |
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1191 changes.push({from: task, to: i}); |
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1192 } |
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1193 } |
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1194 function startWorker(time) { |
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1195 if (!work.length) return; |
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1196 highlight.set(time, operation(highlightWorker)); |
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1197 } |
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1198 |
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1199 // Operations are used to wrap changes in such a way that each |
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1200 // change won't have to update the cursor and display (which would |
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1201 // be awkward, slow, and error-prone), but instead updates are |
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1202 // batched and then all combined and executed at once. |
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1203 function startOperation() { |
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1204 updateInput = null; changes = []; textChanged = selectionChanged = false; |
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1205 } |
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1206 function endOperation() { |
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1207 var reScroll = false; |
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1208 if (selectionChanged) reScroll = !scrollCursorIntoView(); |
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1209 if (changes.length) updateDisplay(changes); |
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1210 else if (selectionChanged) updateCursor(); |
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1211 if (reScroll) scrollCursorIntoView(); |
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1212 if (selectionChanged) restartBlink(); |
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1213 |
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1214 // updateInput can be set to a boolean value to force/prevent an |
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1215 // update. |
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1216 if (!leaveInputAlone && (updateInput === true || (updateInput !== false && selectionChanged))) |
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1217 prepareInput(); |
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1218 |
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1219 if (selectionChanged && options.onCursorActivity) |
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1220 options.onCursorActivity(instance); |
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1221 if (textChanged && options.onChange) |
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1222 options.onChange(instance); |
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1223 if (selectionChanged && options.matchBrackets) |
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1224 setTimeout(operation(function() { |
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1225 if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;} |
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1226 matchBrackets(false); |
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1227 }), 20); |
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1228 } |
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1229 var nestedOperation = 0; |
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1230 function operation(f) { |
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1231 return function() { |
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1232 if (!nestedOperation++) startOperation(); |
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1233 try {var result = f.apply(this, arguments);} |
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1234 finally {if (!--nestedOperation) endOperation();} |
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1235 return result; |
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1236 }; |
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1237 } |
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1238 |
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1239 function SearchCursor(query, pos, caseFold) { |
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1240 this.atOccurrence = false; |
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1241 if (caseFold == null) caseFold = typeof query == "string" && query == query.toLowerCase(); |
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1242 |
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1243 if (pos && typeof pos == "object") pos = clipPos(pos); |
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1244 else pos = {line: 0, ch: 0}; |
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|
1245 this.pos = {from: pos, to: pos}; |
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|
1246 |
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1247 // The matches method is filled in based on the type of query. |
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1248 // It takes a position and a direction, and returns an object |
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1249 // describing the next occurrence of the query, or null if no |
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parents:
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1250 // more matches were found. |
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1251 if (typeof query != "string") // Regexp match |
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parents:
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|
1252 this.matches = function(reverse, pos) { |
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diff
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1253 if (reverse) { |
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1254 var line = lines[pos.line].text.slice(0, pos.ch), match = line.match(query), start = 0; |
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diff
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1255 while (match) { |
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parents:
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1256 var ind = line.indexOf(match[0]); |
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1257 start += ind; |
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1258 line = line.slice(ind + 1); |
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parents:
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1259 var newmatch = line.match(query); |
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1260 if (newmatch) match = newmatch; |
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1261 else break; |
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1262 } |
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1263 } |
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1264 else { |
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1265 var line = lines[pos.line].text.slice(pos.ch), match = line.match(query), |
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1266 start = match && pos.ch + line.indexOf(match[0]); |
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1267 } |
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1268 if (match) |
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1269 return {from: {line: pos.line, ch: start}, |
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1270 to: {line: pos.line, ch: start + match[0].length}, |
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1271 match: match}; |
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1272 }; |
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1273 else { // String query |
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1274 if (caseFold) query = query.toLowerCase(); |
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1275 var fold = caseFold ? function(str){return str.toLowerCase();} : function(str){return str;}; |
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1276 var target = query.split("\n"); |
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1277 // Different methods for single-line and multi-line queries |
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1278 if (target.length == 1) |
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1279 this.matches = function(reverse, pos) { |
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1280 var line = fold(lines[pos.line].text), len = query.length, match; |
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1281 if (reverse ? (pos.ch >= len && (match = line.lastIndexOf(query, pos.ch - len)) != -1) |
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1282 : (match = line.indexOf(query, pos.ch)) != -1) |
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1283 return {from: {line: pos.line, ch: match}, |
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1284 to: {line: pos.line, ch: match + len}}; |
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1285 }; |
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1286 else |
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1287 this.matches = function(reverse, pos) { |
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1288 var ln = pos.line, idx = (reverse ? target.length - 1 : 0), match = target[idx], line = fold(lines[ln].text); |
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1289 var offsetA = (reverse ? line.indexOf(match) + match.length : line.lastIndexOf(match)); |
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1290 if (reverse ? offsetA >= pos.ch || offsetA != match.length |
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1291 : offsetA <= pos.ch || offsetA != line.length - match.length) |
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1292 return; |
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1293 for (;;) { |
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1294 if (reverse ? !ln : ln == lines.length - 1) return; |
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1295 line = fold(lines[ln += reverse ? -1 : 1].text); |
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1296 match = target[reverse ? --idx : ++idx]; |
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1297 if (idx > 0 && idx < target.length - 1) { |
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1298 if (line != match) return; |
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1299 else continue; |
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1300 } |
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1301 var offsetB = (reverse ? line.lastIndexOf(match) : line.indexOf(match) + match.length); |
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1302 if (reverse ? offsetB != line.length - match.length : offsetB != match.length) |
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1303 return; |
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1304 var start = {line: pos.line, ch: offsetA}, end = {line: ln, ch: offsetB}; |
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1305 return {from: reverse ? end : start, to: reverse ? start : end}; |
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1306 } |
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1307 }; |
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1308 } |
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1309 } |
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1310 |
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1311 SearchCursor.prototype = { |
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1312 findNext: function() {return this.find(false);}, |
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1313 findPrevious: function() {return this.find(true);}, |
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1314 |
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1315 find: function(reverse) { |
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1316 var self = this, pos = clipPos(reverse ? this.pos.from : this.pos.to); |
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1317 function savePosAndFail(line) { |
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1318 var pos = {line: line, ch: 0}; |
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1319 self.pos = {from: pos, to: pos}; |
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1320 self.atOccurrence = false; |
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1321 return false; |
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1322 } |
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1323 |
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1324 for (;;) { |
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1325 if (this.pos = this.matches(reverse, pos)) { |
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1326 this.atOccurrence = true; |
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1327 return this.pos.match || true; |
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1328 } |
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1329 if (reverse) { |
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1330 if (!pos.line) return savePosAndFail(0); |
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1331 pos = {line: pos.line-1, ch: lines[pos.line-1].text.length}; |
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1332 } |
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1333 else { |
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1334 if (pos.line == lines.length - 1) return savePosAndFail(lines.length); |
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1335 pos = {line: pos.line+1, ch: 0}; |
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1336 } |
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1337 } |
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1338 }, |
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1339 |
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1340 from: function() {if (this.atOccurrence) return copyPos(this.pos.from);}, |
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1341 to: function() {if (this.atOccurrence) return copyPos(this.pos.to);} |
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1342 }; |
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1343 |
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1344 return instance; |
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1345 } // (end of function CodeMirror) |
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1346 |
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1347 // The default configuration options. |
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1348 CodeMirror.defaults = { |
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1349 value: "", |
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1350 mode: null, |
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1351 indentUnit: 2, |
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1352 indentWithTabs: false, |
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1353 tabMode: "classic", |
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1354 enterMode: "indent", |
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1355 electricChars: true, |
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1356 onKeyEvent: null, |
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1357 lineNumbers: false, |
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1358 gutter: false, |
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1359 firstLineNumber: 1, |
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1360 readOnly: false, |
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1361 onChange: null, |
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1362 onCursorActivity: null, |
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1363 onGutterClick: null, |
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1364 onFocus: null, onBlur: null, onScroll: null, |
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1365 matchBrackets: false, |
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1366 workTime: 100, |
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1367 workDelay: 200, |
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1368 undoDepth: 40, |
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1369 tabindex: null |
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1370 }; |
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|
1371 |
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1372 // Known modes, by name and by MIME |
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1373 var modes = {}, mimeModes = {}; |
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|
1374 CodeMirror.defineMode = function(name, mode) { |
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|
1375 if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; |
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1376 modes[name] = mode; |
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1377 }; |
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1378 CodeMirror.defineMIME = function(mime, spec) { |
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1379 mimeModes[mime] = spec; |
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1380 }; |
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1381 CodeMirror.getMode = function(options, spec) { |
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1382 if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) |
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1383 spec = mimeModes[spec]; |
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|
1384 if (typeof spec == "string") |
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1385 var mname = spec, config = {}; |
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1386 else |
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1387 var mname = spec.name, config = spec; |
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1388 var mfactory = modes[mname]; |
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1389 if (!mfactory) { |
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1390 if (window.console) console.warn("No mode " + mname + " found, falling back to plain text."); |
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1391 return CodeMirror.getMode(options, "text/plain"); |
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1392 } |
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1393 return mfactory(options, config); |
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1394 } |
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1395 CodeMirror.listModes = function() { |
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1396 var list = []; |
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1397 for (var m in modes) |
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1398 if (modes.propertyIsEnumerable(m)) list.push(m); |
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1399 return list; |
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1400 }; |
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1401 CodeMirror.listMIMEs = function() { |
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1402 var list = []; |
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1403 for (var m in mimeModes) |
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1404 if (mimeModes.propertyIsEnumerable(m)) list.push(m); |
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1405 return list; |
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1406 }; |
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1407 |
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1408 CodeMirror.fromTextArea = function(textarea, options) { |
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1409 if (!options) options = {}; |
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1410 options.value = textarea.value; |
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1411 if (!options.tabindex && textarea.tabindex) |
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1412 options.tabindex = textarea.tabindex; |
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1413 |
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1414 function save() {textarea.value = instance.getValue();} |
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1415 if (textarea.form) { |
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1416 // Deplorable hack to make the submit method do the right thing. |
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1417 var rmSubmit = connect(textarea.form, "submit", save, true); |
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1418 if (typeof textarea.form.submit == "function") { |
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1419 var realSubmit = textarea.form.submit; |
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1420 function wrappedSubmit() { |
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1421 save(); |
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1422 textarea.form.submit = realSubmit; |
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1423 textarea.form.submit(); |
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1424 textarea.form.submit = wrappedSubmit; |
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1425 } |
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1426 textarea.form.submit = wrappedSubmit; |
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1427 } |
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1428 } |
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parents:
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1429 |
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1430 textarea.style.display = "none"; |
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1431 var instance = CodeMirror(function(node) { |
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1432 textarea.parentNode.insertBefore(node, textarea.nextSibling); |
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1433 }, options); |
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1434 instance.save = save; |
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1435 instance.toTextArea = function() { |
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1436 save(); |
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1437 textarea.parentNode.removeChild(instance.getWrapperElement()); |
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1438 textarea.style.display = ""; |
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diff
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1439 if (textarea.form) { |
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parents:
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1440 rmSubmit(); |
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1441 if (typeof textarea.form.submit == "function") |
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1442 textarea.form.submit = realSubmit; |
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1443 } |
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1444 }; |
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1445 return instance; |
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parents:
diff
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1446 }; |
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parents:
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|
1447 |
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1448 // Utility functions for working with state. Exported because modes |
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parents:
diff
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1449 // sometimes need to do this. |
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parents:
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1450 function copyState(mode, state) { |
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1451 if (state === true) return state; |
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1452 if (mode.copyState) return mode.copyState(state); |
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parents:
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1453 var nstate = {}; |
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diff
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1454 for (var n in state) { |
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parents:
diff
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1455 var val = state[n]; |
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parents:
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1456 if (val instanceof Array) val = val.concat([]); |
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1457 nstate[n] = val; |
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parents:
diff
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|
1458 } |
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diff
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|
1459 return nstate; |
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parents:
diff
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|
1460 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1461 CodeMirror.startState = startState; |
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parents:
diff
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1462 function startState(mode, a1, a2) { |
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diff
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1463 return mode.startState ? mode.startState(a1, a2) : true; |
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diff
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|
1464 } |
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parents:
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1465 CodeMirror.copyState = copyState; |
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1466 |
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1467 // The character stream used by a mode's parser. |
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parents:
diff
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1468 function StringStream(string) { |
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1469 this.pos = this.start = 0; |
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1470 this.string = string; |
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1471 } |
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1472 StringStream.prototype = { |
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1473 eol: function() {return this.pos >= this.string.length;}, |
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1474 sol: function() {return this.pos == 0;}, |
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1475 peek: function() {return this.string.charAt(this.pos);}, |
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1476 next: function() { |
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1477 if (this.pos < this.string.length) |
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1478 return this.string.charAt(this.pos++); |
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1479 }, |
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1480 eat: function(match) { |
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1481 var ch = this.string.charAt(this.pos); |
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1482 if (typeof match == "string") var ok = ch == match; |
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1483 else var ok = ch && (match.test ? match.test(ch) : match(ch)); |
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1484 if (ok) {++this.pos; return ch;} |
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1485 }, |
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1486 eatWhile: function(match) { |
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1487 var start = this.start; |
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1488 while (this.eat(match)){} |
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1489 return this.pos > start; |
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1490 }, |
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1491 eatSpace: function() { |
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1492 var start = this.pos; |
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1493 while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; |
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1494 return this.pos > start; |
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1495 }, |
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1496 skipToEnd: function() {this.pos = this.string.length;}, |
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1497 skipTo: function(ch) { |
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1498 var found = this.string.indexOf(ch, this.pos); |
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1499 if (found > -1) {this.pos = found; return true;} |
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diff
changeset
|
1500 }, |
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Added server side file editing with commit
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parents:
diff
changeset
|
1501 backUp: function(n) {this.pos -= n;}, |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1502 column: function() {return countColumn(this.string, this.start);}, |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1503 indentation: function() {return countColumn(this.string);}, |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1504 match: function(pattern, consume, caseInsensitive) { |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1505 if (typeof pattern == "string") { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1506 function cased(str) {return caseInsensitive ? str.toLowerCase() : str;} |
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Added server side file editing with commit
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parents:
diff
changeset
|
1507 if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) { |
166317d464f3
Added server side file editing with commit
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parents:
diff
changeset
|
1508 if (consume !== false) this.pos += pattern.length; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1509 return true; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1510 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1511 } |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1512 else { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1513 var match = this.string.slice(this.pos).match(pattern); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1514 if (match && consume !== false) this.pos += match[0].length; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1515 return match; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1516 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1517 }, |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1518 current: function(){return this.string.slice(this.start, this.pos);} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1519 }; |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1520 |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1521 // Line objects. These hold state related to a line, including |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1522 // highlighting info (the styles array). |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1523 function Line(text, styles) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1524 this.styles = styles || [text, null]; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1525 this.stateAfter = null; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1526 this.text = text; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1527 this.marked = this.gutterMarker = this.className = null; |
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Added server side file editing with commit
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parents:
diff
changeset
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1528 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1529 Line.prototype = { |
166317d464f3
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parents:
diff
changeset
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1530 // Replace a piece of a line, keeping the styles around it intact. |
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parents:
diff
changeset
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1531 replace: function(from, to, text) { |
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parents:
diff
changeset
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1532 var st = [], mk = this.marked; |
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parents:
diff
changeset
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1533 copyStyles(0, from, this.styles, st); |
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parents:
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changeset
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1534 if (text) st.push(text, null); |
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Added server side file editing with commit
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parents:
diff
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1535 copyStyles(to, this.text.length, this.styles, st); |
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parents:
diff
changeset
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1536 this.styles = st; |
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parents:
diff
changeset
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1537 this.text = this.text.slice(0, from) + text + this.text.slice(to); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1538 this.stateAfter = null; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1539 if (mk) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1540 var diff = text.length - (to - from), end = this.text.length; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1541 function fix(n) {return n <= Math.min(to, to + diff) ? n : n + diff;} |
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parents:
diff
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1542 for (var i = 0; i < mk.length; ++i) { |
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parents:
diff
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1543 var mark = mk[i], del = false; |
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parents:
diff
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1544 if (mark.from >= end) del = true; |
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parents:
diff
changeset
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1545 else {mark.from = fix(mark.from); if (mark.to != null) mark.to = fix(mark.to);} |
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parents:
diff
changeset
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1546 if (del || mark.from >= mark.to) {mk.splice(i, 1); i--;} |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1547 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1548 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1549 }, |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1550 // Split a line in two, again keeping styles intact. |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1551 split: function(pos, textBefore) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1552 var st = [textBefore, null]; |
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parents:
diff
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1553 copyStyles(pos, this.text.length, this.styles, st); |
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parents:
diff
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1554 return new Line(textBefore + this.text.slice(pos), st); |
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parents:
diff
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1555 }, |
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parents:
diff
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1556 addMark: function(from, to, style) { |
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parents:
diff
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1557 var mk = this.marked, mark = {from: from, to: to, style: style}; |
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parents:
diff
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1558 if (this.marked == null) this.marked = []; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1559 this.marked.push(mark); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1560 this.marked.sort(function(a, b){return a.from - b.from;}); |
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parents:
diff
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1561 return mark; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1562 }, |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1563 removeMark: function(mark) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1564 var mk = this.marked; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1565 if (!mk) return; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1566 for (var i = 0; i < mk.length; ++i) |
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parents:
diff
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1567 if (mk[i] == mark) {mk.splice(i, 1); break;} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1568 }, |
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parents:
diff
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1569 // Run the given mode's parser over a line, update the styles |
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Added server side file editing with commit
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parents:
diff
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1570 // array, which contains alternating fragments of text and CSS |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1571 // classes. |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1572 highlight: function(mode, state) { |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1573 var stream = new StringStream(this.text), st = this.styles, pos = 0, changed = false; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1574 while (!stream.eol()) { |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1575 var style = mode.token(stream, state); |
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Added server side file editing with commit
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parents:
diff
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|
1576 var substr = this.text.slice(stream.start, stream.pos); |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1577 stream.start = stream.pos; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1578 if (pos && st[pos-1] == style) |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1579 st[pos-2] += substr; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1580 else if (substr) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1581 if (!changed && st[pos] != substr || st[pos+1] != style) changed = true; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1582 st[pos++] = substr; st[pos++] = style; |
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Added server side file editing with commit
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parents:
diff
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|
1583 } |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1584 // Give up when line is ridiculously long |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1585 if (stream.pos > 5000) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1586 st[pos++] = this.text.slice(stream.pos); st[pos++] = null; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1587 break; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1588 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1589 } |
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parents:
diff
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|
1590 if (st.length != pos) {st.length = pos; changed = true;} |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1591 return changed; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1592 }, |
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parents:
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1593 // Fetch the parser token for a given character. Useful for hacks |
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parents:
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1594 // that want to inspect the mode state (say, for completion). |
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1595 getTokenAt: function(mode, state, ch) { |
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parents:
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1596 var txt = this.text, stream = new StringStream(txt); |
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parents:
diff
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1597 while (stream.pos < ch && !stream.eol()) { |
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parents:
diff
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1598 stream.start = stream.pos; |
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parents:
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1599 var style = mode.token(stream, state); |
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parents:
diff
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1600 } |
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parents:
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1601 return {start: stream.start, |
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parents:
diff
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1602 end: stream.pos, |
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parents:
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1603 string: stream.current(), |
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parents:
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1604 className: style || null, |
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parents:
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1605 state: state}; |
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parents:
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1606 }, |
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parents:
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1607 indentation: function() {return countColumn(this.text);}, |
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parents:
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1608 // Produces an HTML fragment for the line, taking selection, |
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1609 // marking, and highlighting into account. |
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1610 getHTML: function(sfrom, sto, includePre) { |
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1611 var html = []; |
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1612 if (includePre) |
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1613 html.push(this.className ? '<pre class="' + this.className + '">': "<pre>"); |
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1614 function span(text, style) { |
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parents:
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1615 if (!text) return; |
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parents:
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1616 if (style) html.push('<span class="', style, '">', htmlEscape(text), "</span>"); |
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1617 else html.push(htmlEscape(text)); |
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1618 } |
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1619 var st = this.styles, allText = this.text, marked = this.marked; |
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1620 if (sfrom == sto) sfrom = null; |
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1621 |
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parents:
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1622 if (!allText) |
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parents:
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1623 span(" ", sfrom != null && sto == null ? "CodeMirror-selected" : null); |
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1624 else if (!marked && sfrom == null) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1625 for (var i = 0, e = st.length; i < e; i+=2) span(st[i], st[i+1]); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1626 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1627 var pos = 0, i = 0, text = "", style, sg = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1628 var markpos = -1, mark = null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1629 function nextMark() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1630 if (marked) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1631 markpos += 1; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1632 mark = (markpos < marked.length) ? marked[markpos] : null; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1633 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1634 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1635 nextMark(); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1636 while (pos < allText.length) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1637 var upto = allText.length; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1638 var extraStyle = ""; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1639 if (sfrom != null) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1640 if (sfrom > pos) upto = sfrom; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1641 else if (sto == null || sto > pos) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1642 extraStyle = " CodeMirror-selected"; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1643 if (sto != null) upto = Math.min(upto, sto); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1644 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1645 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1646 while (mark && mark.to != null && mark.to <= pos) nextMark(); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1647 if (mark) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1648 if (mark.from > pos) upto = Math.min(upto, mark.from); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1649 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1650 extraStyle += " " + mark.style; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1651 if (mark.to != null) upto = Math.min(upto, mark.to); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1652 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1653 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1654 for (;;) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1655 var end = pos + text.length; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1656 var apliedStyle = style; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1657 if (extraStyle) apliedStyle = style ? style + extraStyle : extraStyle; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1658 span(end > upto ? text.slice(0, upto - pos) : text, apliedStyle); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1659 if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1660 pos = end; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1661 text = st[i++]; style = st[i++]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1662 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1663 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1664 if (sfrom != null && sto == null) span(" ", "CodeMirror-selected"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1665 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1666 if (includePre) html.push("</pre>"); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1667 return html.join(""); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1668 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1669 }; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1670 // Utility used by replace and split above |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1671 function copyStyles(from, to, source, dest) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1672 for (var i = 0, pos = 0, state = 0; pos < to; i+=2) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1673 var part = source[i], end = pos + part.length; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1674 if (state == 0) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1675 if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1676 if (end >= from) state = 1; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1677 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1678 else if (state == 1) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1679 if (end > to) dest.push(part.slice(0, to - pos), source[i+1]); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1680 else dest.push(part, source[i+1]); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1681 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1682 pos = end; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1683 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1684 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1685 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1686 // The history object 'chunks' changes that are made close together |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1687 // and at almost the same time into bigger undoable units. |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1688 function History() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1689 this.time = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1690 this.done = []; this.undone = []; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1691 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1692 History.prototype = { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1693 addChange: function(start, added, old) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1694 this.undone.length = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1695 var time = +new Date, last = this.done[this.done.length - 1]; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1696 if (time - this.time > 400 || !last || |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1697 last.start > start + added || last.start + last.added < start - last.added + last.old.length) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1698 this.done.push({start: start, added: added, old: old}); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1699 else { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1700 var oldoff = 0; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1701 if (start < last.start) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1702 for (var i = last.start - start - 1; i >= 0; --i) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1703 last.old.unshift(old[i]); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1704 last.added += last.start - start; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1705 last.start = start; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1706 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1707 else if (last.start < start) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1708 oldoff = start - last.start; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1709 added += oldoff; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1710 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1711 for (var i = last.added - oldoff, e = old.length; i < e; ++i) |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1712 last.old.push(old[i]); |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1713 if (last.added < added) last.added = added; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1714 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1715 this.time = time; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1716 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1717 }; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1718 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1719 // Event stopping compatibility wrapper. |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1720 function stopEvent() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1721 if (this.preventDefault) {this.preventDefault(); this.stopPropagation();} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1722 else {this.returnValue = false; this.cancelBubble = true;} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1723 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1724 // Ensure an event has a stop method. |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1725 function addStop(event) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1726 if (!event.stop) event.stop = stopEvent; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1727 return event; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1728 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1729 |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1730 // Event wrapper, exposing the few operations we need. |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1731 function Event(orig) {this.e = orig;} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1732 Event.prototype = { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1733 stop: function() {stopEvent.call(this.e);}, |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1734 target: function() {return this.e.target || this.e.srcElement;}, |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1735 button: function() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1736 if (this.e.which) return this.e.which; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1737 else if (this.e.button & 1) return 1; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1738 else if (this.e.button & 2) return 3; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1739 else if (this.e.button & 4) return 2; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1740 }, |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1741 pageX: function() { |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1742 if (this.e.pageX != null) return this.e.pageX; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1743 else return this.e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1744 }, |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1745 pageY: function() { |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1746 if (this.e.pageY != null) return this.e.pageY; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1747 else return this.e.clientY + document.body.scrollTop + document.documentElement.scrollTop; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1748 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1749 }; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1750 |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1751 // Event handler registration. If disconnect is true, it'll return a |
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Added server side file editing with commit
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parents:
diff
changeset
|
1752 // function that unregisters the handler. |
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Added server side file editing with commit
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parents:
diff
changeset
|
1753 function connect(node, type, handler, disconnect) { |
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Added server side file editing with commit
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parents:
diff
changeset
|
1754 function wrapHandler(event) {handler(new Event(event || window.event));} |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1755 if (typeof node.addEventListener == "function") { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1756 node.addEventListener(type, wrapHandler, false); |
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Added server side file editing with commit
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parents:
diff
changeset
|
1757 if (disconnect) return function() {node.removeEventListener(type, wrapHandler, false);}; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1758 } |
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parents:
diff
changeset
|
1759 else { |
166317d464f3
Added server side file editing with commit
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parents:
diff
changeset
|
1760 node.attachEvent("on" + type, wrapHandler); |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1761 if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);}; |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1762 } |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1763 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1764 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1765 function Delayed() {this.id = null;} |
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Added server side file editing with commit
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parents:
diff
changeset
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1766 Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}}; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1767 |
166317d464f3
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parents:
diff
changeset
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1768 // Some IE versions don't preserve whitespace when setting the |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1769 // innerHTML of a PRE tag. |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
|
1770 var badInnerHTML = (function() { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1771 var pre = document.createElement("pre"); |
166317d464f3
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1772 pre.innerHTML = " "; return !pre.innerHTML; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1773 })(); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1774 |
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parents:
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1775 var gecko = /gecko\/\d{7}/i.test(navigator.userAgent); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1776 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1777 var lineSep = "\n"; |
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parents:
diff
changeset
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1778 // Feature-detect whether newlines in textareas are converted to \r\n |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1779 (function () { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1780 var te = document.createElement("textarea"); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1781 te.value = "foo\nbar"; |
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parents:
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changeset
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1782 if (te.value.indexOf("\r") > -1) lineSep = "\r\n"; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1783 }()); |
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parents:
diff
changeset
|
1784 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1785 var tabSize = 8; |
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parents:
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changeset
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1786 var mac = /Mac/.test(navigator.platform); |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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1787 var movementKeys = {}; |
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parents:
diff
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1788 for (var i = 35; i <= 40; ++i) |
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parents:
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1789 movementKeys[i] = movementKeys["c" + i] = true; |
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parents:
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1790 |
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parents:
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1791 // Counts the column offset in a string, taking tabs into account. |
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parents:
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1792 // Used mostly to find indentation. |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1793 function countColumn(string, end) { |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1794 if (end == null) { |
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parents:
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1795 end = string.search(/[^\s\u00a0]/); |
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parents:
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1796 if (end == -1) end = string.length; |
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parents:
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1797 } |
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parents:
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1798 for (var i = 0, n = 0; i < end; ++i) { |
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parents:
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1799 if (string.charAt(i) == "\t") n += tabSize - (n % tabSize); |
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parents:
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1800 else ++n; |
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parents:
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1801 } |
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parents:
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1802 return n; |
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parents:
diff
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1803 } |
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parents:
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1804 |
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parents:
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1805 // Find the position of an element by following the offsetParent chain. |
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parents:
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1806 function eltOffset(node) { |
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parents:
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1807 var x = 0, y = 0, n2 = node; |
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parents:
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1808 for (var n = node; n; n = n.offsetParent) {x += n.offsetLeft; y += n.offsetTop;} |
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parents:
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1809 for (var n = node; n != document.body; n = n.parentNode) {x -= n.scrollLeft; y -= n.scrollTop;} |
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parents:
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1810 return {left: x, top: y}; |
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parents:
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1811 } |
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parents:
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1812 // Get a node's text content. |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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1813 function eltText(node) { |
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parents:
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1814 return node.textContent || node.innerText || node.nodeValue || ""; |
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parents:
diff
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1815 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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1816 |
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parents:
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1817 // Operations on {line, ch} objects. |
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parents:
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1818 function posEq(a, b) {return a.line == b.line && a.ch == b.ch;} |
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parents:
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1819 function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);} |
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parents:
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1820 function copyPos(x) {return {line: x.line, ch: x.ch};} |
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parents:
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1821 |
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Marcin Kuzminski <marcin@python-works.com>
parents:
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1822 function htmlEscape(str) { |
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parents:
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1823 return str.replace(/[<&]/g, function(str) {return str == "&" ? "&" : "<";}); |
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parents:
diff
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1824 } |
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parents:
diff
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1825 |
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parents:
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1826 // Used to position the cursor after an undo/redo by finding the |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1827 // last edited character. |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1828 function editEnd(from, to) { |
166317d464f3
Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1829 if (!to) return from ? from.length : 0; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1830 if (!from) return to.length; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1831 for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j) |
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Added server side file editing with commit
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parents:
diff
changeset
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1832 if (from.charAt(i) != to.charAt(j)) break; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
changeset
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1833 return j + 1; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1834 } |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1835 |
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parents:
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1836 function indexOf(collection, elt) { |
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parents:
diff
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1837 if (collection.indexOf) return collection.indexOf(elt); |
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parents:
diff
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1838 for (var i = 0, e = collection.length; i < e; ++i) |
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parents:
diff
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1839 if (collection[i] == elt) return i; |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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1840 return -1; |
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff
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|
1841 } |
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Added server side file editing with commit
Marcin Kuzminski <marcin@python-works.com>
parents:
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1842 |
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Added server side file editing with commit
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1843 // See if "".split is the broken IE version, if so, provide an |
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Added server side file editing with commit
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parents:
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1844 // alternative way to split lines. |
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parents:
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1845 if ("\n\nb".split(/\n/).length != 3) |
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parents:
diff
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1846 var splitLines = function(string) { |
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parents:
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1847 var pos = 0, nl, result = []; |
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parents:
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1848 while ((nl = string.indexOf("\n", pos)) > -1) { |
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parents:
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1849 result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl)); |
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1850 pos = nl + 1; |
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1851 } |
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1852 result.push(string.slice(pos)); |
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1853 return result; |
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parents:
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1854 }; |
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1855 else |
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1856 var splitLines = function(string){return string.split(/\r?\n/);}; |
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1857 |
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1858 // Sane model of finding and setting the selection in a textarea |
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1859 if (window.getSelection) { |
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parents:
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1860 var selRange = function(te) { |
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parents:
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1861 try {return {start: te.selectionStart, end: te.selectionEnd};} |
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parents:
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1862 catch(e) {return null;} |
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1863 }; |
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1864 var setSelRange = function(te, start, end) { |
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1865 try {te.setSelectionRange(start, end);} |
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1866 catch(e) {} // Fails on Firefox when textarea isn't part of the document |
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1867 }; |
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1868 } |
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parents:
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1869 // IE model. Don't ask. |
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1870 else { |
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1871 var selRange = function(te) { |
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parents:
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1872 try {var range = document.selection.createRange();} |
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1873 catch(e) {return null;} |
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1874 if (!range || range.parentElement() != te) return null; |
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parents:
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1875 var val = te.value, len = val.length, localRange = te.createTextRange(); |
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1876 localRange.moveToBookmark(range.getBookmark()); |
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1877 var endRange = te.createTextRange(); |
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1878 endRange.collapse(false); |
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1879 |
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1880 if (localRange.compareEndPoints("StartToEnd", endRange) > -1) |
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1881 return {start: len, end: len}; |
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1882 |
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1883 var start = -localRange.moveStart("character", -len); |
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1884 for (var i = val.indexOf("\r"); i > -1 && i < start; i = val.indexOf("\r", i+1), start++) {} |
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1885 |
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1886 if (localRange.compareEndPoints("EndToEnd", endRange) > -1) |
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1887 return {start: start, end: len}; |
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1888 |
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1889 var end = -localRange.moveEnd("character", -len); |
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1890 for (var i = val.indexOf("\r"); i > -1 && i < end; i = val.indexOf("\r", i+1), end++) {} |
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1891 return {start: start, end: end}; |
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1892 }; |
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1893 var setSelRange = function(te, start, end) { |
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1894 var range = te.createTextRange(); |
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1895 range.collapse(true); |
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1896 var endrange = range.duplicate(); |
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1897 var newlines = 0, txt = te.value; |
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1898 for (var pos = txt.indexOf("\n"); pos > -1 && pos < start; pos = txt.indexOf("\n", pos + 1)) |
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1899 ++newlines; |
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1900 range.move("character", start - newlines); |
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1901 for (; pos > -1 && pos < end; pos = txt.indexOf("\n", pos + 1)) |
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1902 ++newlines; |
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1903 endrange.move("character", end - newlines); |
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1904 range.setEndPoint("EndToEnd", endrange); |
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1905 range.select(); |
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1906 }; |
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1907 } |
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1908 |
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1909 CodeMirror.defineMode("null", function() { |
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1910 return {token: function(stream) {stream.skipToEnd();}}; |
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1911 }); |
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1912 CodeMirror.defineMIME("text/plain", "null"); |
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1913 |
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1914 return CodeMirror; |
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1915 })(); |