Your IP : 10.1.73.149
/* CodeMirror main module
*
* Implements the CodeMirror constructor and prototype, which take care
* of initializing the editor frame, and providing the outside interface.
*/
// The CodeMirrorConfig object is used to specify a default
// configuration. If you specify such an object before loading this
// file, the values you put into it will override the defaults given
// below. You can also assign to it after loading.
var CodeMirrorConfig = window.CodeMirrorConfig || {};
var CodeMirror = (function(){
function setDefaults(object, defaults) {
for (var option in defaults) {
if (!object.hasOwnProperty(option))
object[option] = defaults[option];
}
}
function forEach(array, action) {
for (var i = 0; i < array.length; i++)
action(array[i]);
}
// These default options can be overridden by passing a set of
// options to a specific CodeMirror constructor. See manual.html for
// their meaning.
setDefaults(CodeMirrorConfig, {
stylesheet: "",
path: "",
parserfile: [],
basefiles: ["util.js", "stringstream.js", "select.js", "undo.js", "editor.js", "tokenize.js"],
iframeClass: null,
passDelay: 200,
passTime: 50,
lineNumberDelay: 200,
lineNumberTime: 50,
continuousScanning: false,
saveFunction: null,
onChange: null,
undoDepth: 50,
undoDelay: 800,
disableSpellcheck: true,
textWrapping: true,
readOnly: false,
width: "",
height: "300px",
autoMatchParens: false,
parserConfig: null,
tabMode: "indent", // or "spaces", "default", "shift"
reindentOnLoad: false,
activeTokens: null,
cursorActivity: null,
lineNumbers: false,
indentUnit: 2
});
function addLineNumberDiv(container) {
var nums = document.createElement("DIV"),
scroller = document.createElement("DIV");
nums.style.position = "absolute";
nums.style.height = "100%";
if (nums.style.setExpression) {
try {nums.style.setExpression("height", "this.previousSibling.offsetHeight + 'px'");}
catch(e) {} // Seems to throw 'Not Implemented' on some IE8 versions
}
nums.style.top = "0px";
nums.style.overflow = "hidden";
container.appendChild(nums);
scroller.className = "CodeMirror-line-numbers";
nums.appendChild(scroller);
return nums;
}
function CodeMirror(place, options) {
// Backward compatibility for deprecated options.
if (options.dumbTabs) options.tabMode = "spaces";
else if (options.normalTab) options.tabMode = "default";
// Use passed options, if any, to override defaults.
this.options = options = options || {};
setDefaults(options, CodeMirrorConfig);
var frame = this.frame = document.createElement("IFRAME");
if (options.iframeClass) frame.className = options.iframeClass;
frame.frameBorder = 0;
frame.src = "javascript:false;";
frame.style.border = "0";
frame.style.width = '100%';
frame.style.height = '100%';
// display: block occasionally suppresses some Firefox bugs, so we
// always add it, redundant as it sounds.
frame.style.display = "block";
var div = this.wrapping = document.createElement("DIV");
div.style.position = "relative";
div.className = "CodeMirror-wrapping";
div.style.width = options.width;
div.style.height = options.height;
if (place.appendChild) place.appendChild(div);
else place(div);
div.appendChild(frame);
if (options.lineNumbers) this.lineNumbers = addLineNumberDiv(div);
// Link back to this object, so that the editor can fetch options
// and add a reference to itself.
frame.CodeMirror = this;
this.win = frame.contentWindow;
if (typeof options.parserfile == "string")
options.parserfile = [options.parserfile];
if (typeof options.stylesheet == "string")
options.stylesheet = [options.stylesheet];
var html = ["<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><head>"];
// Hack to work around a bunch of IE8-specific problems.
html.push("<meta http-equiv=\"X-UA-Compatible\" content=\"IE=EmulateIE7\"/>");
forEach(options.stylesheet, function(file) {
html.push("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + file + "\"/>");
});
forEach(options.basefiles.concat(options.parserfile), function(file) {
html.push("<script type=\"text/javascript\" src=\"" + options.path + file + "\"><" + "/script>");
});
html.push("</head><body style=\"border-width: 0;\" class=\"editbox\" spellcheck=\"" +
(options.disableSpellcheck ? "false" : "true") + "\"></body></html>");
var doc = this.win.document;
doc.open();
doc.write(html.join(""));
doc.close();
}
CodeMirror.prototype = {
init: function() {
if (this.options.initCallback) this.options.initCallback(this);
if (this.options.lineNumbers) this.activateLineNumbers();
if (this.options.reindentOnLoad) this.reindent();
},
getCode: function() {return this.editor.getCode();},
setCode: function(code) {this.editor.importCode(code);},
selection: function() {this.focusIfIE(); return this.editor.selectedText();},
reindent: function() {this.editor.reindent();},
reindentSelection: function() {this.focusIfIE(); this.editor.reindentSelection(null);},
focusIfIE: function() {
// in IE, a lot of selection-related functionality only works when the frame is focused
if (this.win.select.ie_selection) this.focus();
},
focus: function() {
this.win.focus();
if (this.editor.selectionSnapshot) // IE hack
this.win.select.setBookmark(this.win.document.body, this.editor.selectionSnapshot);
},
replaceSelection: function(text) {
this.focus();
this.editor.replaceSelection(text);
return true;
},
replaceChars: function(text, start, end) {
this.editor.replaceChars(text, start, end);
},
getSearchCursor: function(string, fromCursor, caseFold) {
return this.editor.getSearchCursor(string, fromCursor, caseFold);
},
undo: function() {this.editor.history.undo();},
redo: function() {this.editor.history.redo();},
historySize: function() {return this.editor.history.historySize();},
clearHistory: function() {this.editor.history.clear();},
grabKeys: function(callback, filter) {this.editor.grabKeys(callback, filter);},
ungrabKeys: function() {this.editor.ungrabKeys();},
setParser: function(name) {this.editor.setParser(name);},
setSpellcheck: function(on) {this.win.document.body.spellcheck = on;},
setTextWrapping: function(on) {
if (on == this.options.textWrapping) return;
this.win.document.body.style.whiteSpace = on ? "" : "nowrap";
this.options.textWrapping = on;
if (this.lineNumbers) {
this.setLineNumbers(false);
this.setLineNumbers(true);
}
},
setIndentUnit: function(unit) {this.win.indentUnit = unit;},
setUndoDepth: function(depth) {this.editor.history.maxDepth = depth;},
setTabMode: function(mode) {this.options.tabMode = mode;},
setLineNumbers: function(on) {
if (on && !this.lineNumbers) {
this.lineNumbers = addLineNumberDiv(this.wrapping);
this.activateLineNumbers();
}
else if (!on && this.lineNumbers) {
this.wrapping.removeChild(this.lineNumbers);
this.wrapping.style.marginLeft = "";
this.lineNumbers = null;
}
},
cursorPosition: function(start) {this.focusIfIE(); return this.editor.cursorPosition(start);},
firstLine: function() {return this.editor.firstLine();},
lastLine: function() {return this.editor.lastLine();},
nextLine: function(line) {return this.editor.nextLine(line);},
prevLine: function(line) {return this.editor.prevLine(line);},
lineContent: function(line) {return this.editor.lineContent(line);},
setLineContent: function(line, content) {this.editor.setLineContent(line, content);},
removeLine: function(line){this.editor.removeLine(line);},
insertIntoLine: function(line, position, content) {this.editor.insertIntoLine(line, position, content);},
selectLines: function(startLine, startOffset, endLine, endOffset) {
this.win.focus();
this.editor.selectLines(startLine, startOffset, endLine, endOffset);
},
nthLine: function(n) {
var line = this.firstLine();
for (; n > 1 && line !== false; n--)
line = this.nextLine(line);
return line;
},
lineNumber: function(line) {
var num = 0;
while (line !== false) {
num++;
line = this.prevLine(line);
}
return num;
},
// Old number-based line interface
jumpToLine: function(n) {
this.selectLines(this.nthLine(n), 0);
this.win.focus();
},
currentLine: function() {
return this.lineNumber(this.cursorPosition().line);
},
activateLineNumbers: function() {
var frame = this.frame, win = frame.contentWindow, doc = win.document, body = doc.body,
nums = this.lineNumbers, scroller = nums.firstChild, self = this;
var barWidth = null;
function sizeBar() {
if (frame.offsetWidth == 0) return;
for (var root = frame; root.parentNode; root = root.parentNode);
if (!nums.parentNode || root != document || !win.Editor) {
// Clear event handlers (their nodes might already be collected, so try/catch)
try{clear();}catch(e){}
clearInterval(sizeInterval);
return;
}
if (nums.offsetWidth != barWidth) {
barWidth = nums.offsetWidth;
nums.style.left = "-" + (frame.parentNode.style.marginLeft = barWidth + "px");
}
}
function doScroll() {
nums.scrollTop = body.scrollTop || doc.documentElement.scrollTop || 0;
}
// Cleanup function, registered by nonWrapping and wrapping.
var clear = function(){};
sizeBar();
var sizeInterval = setInterval(sizeBar, 500);
function nonWrapping() {
var nextNum = 1;
function update() {
var target = 50 + Math.max(body.offsetHeight, frame.offsetHeight);
while (scroller.offsetHeight < target) {
scroller.appendChild(document.createElement("DIV"));
scroller.lastChild.innerHTML = nextNum++;
}
doScroll();
}
var onScroll = win.addEventHandler(win, "scroll", update, true),
onResize = win.addEventHandler(win, "resize", update, true);
clear = function(){onScroll(); onResize();};
update();
}
function wrapping() {
var node, lineNum, next, pos;
function addNum(n) {
if (!lineNum) lineNum = scroller.appendChild(document.createElement("DIV"));
lineNum.innerHTML = n;
pos = lineNum.offsetHeight + lineNum.offsetTop;
lineNum = lineNum.nextSibling;
}
function work() {
if (!scroller.parentNode || scroller.parentNode != self.lineNumbers) return;
var endTime = new Date().getTime() + self.options.lineNumberTime;
while (node) {
addNum(next++);
for (; node && !win.isBR(node); node = node.nextSibling) {
var bott = node.offsetTop + node.offsetHeight;
while (bott - 3 > pos) addNum(" ");
}
if (node) node = node.nextSibling;
if (new Date().getTime() > endTime) {
pending = setTimeout(work, self.options.lineNumberDelay);
return;
}
}
// While there are un-processed number DIVs, or the scroller is smaller than the frame...
var target = 50 + Math.max(body.offsetHeight, frame.offsetHeight);
while (lineNum || scroller.offsetHeight < target) addNum(next++);
doScroll();
}
function start() {
doScroll();
node = body.firstChild;
lineNum = scroller.firstChild;
pos = 0;
next = 1;
work();
}
start();
var pending = null;
function update() {
if (pending) clearTimeout(pending);
if (self.editor.allClean()) start();
else pending = setTimeout(update, 200);
}
self.updateNumbers = update;
var onScroll = win.addEventHandler(win, "scroll", doScroll, true),
onResize = win.addEventHandler(win, "resize", update, true);
clear = function(){
if (pending) clearTimeout(pending);
if (self.updateNumbers == update) self.updateNumbers = null;
onScroll();
onResize();
};
}
(this.options.textWrapping ? wrapping : nonWrapping)();
}
};
CodeMirror.InvalidLineHandle = {toString: function(){return "CodeMirror.InvalidLineHandle";}};
CodeMirror.replace = function(element) {
if (typeof element == "string")
element = document.getElementById(element);
return function(newElement) {
element.parentNode.replaceChild(newElement, element);
};
};
CodeMirror.fromTextArea = function(area, options) {
if (typeof area == "string")
area = document.getElementById(area);
options = options || {};
if (area.style.width && options.width == null)
options.width = area.style.width;
if (area.style.height && options.height == null)
options.height = area.style.height;
if (options.content == null) options.content = area.value;
if (area.form) {
function updateField() {
area.value = mirror.getCode();
}
if (typeof area.form.addEventListener == "function")
area.form.addEventListener("submit", updateField, false);
else
area.form.attachEvent("onsubmit", updateField);
}
function insert(frame) {
if (area.nextSibling)
area.parentNode.insertBefore(frame, area.nextSibling);
else
area.parentNode.appendChild(frame);
}
area.style.display = "none";
var mirror = new CodeMirror(insert, options);
return mirror;
};
CodeMirror.isProbablySupported = function() {
// This is rather awful, but can be useful.
var match;
if (window.opera)
return Number(window.opera.version()) >= 9.52;
else if (/Apple Computers, Inc/.test(navigator.vendor) && (match = navigator.userAgent.match(/Version\/(\d+(?:\.\d+)?)\./)))
return Number(match[1]) >= 3;
else if (document.selection && window.ActiveXObject && (match = navigator.userAgent.match(/MSIE (\d+(?:\.\d*)?)\b/)))
return Number(match[1]) >= 6;
else if (match = navigator.userAgent.match(/gecko\/(\d{8})/i))
return Number(match[1]) >= 20050901;
else if (match = navigator.userAgent.match(/AppleWebKit\/(\d+)/))
return Number(match[1]) >= 525;
else
return null;
};
return CodeMirror;
})();
;
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