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foldcode.js
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53 lines (48 loc) · 1.93 KB
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// Modified version of CodeMirror's codefold.js to show guttermarkers
CodeMirror.newFoldFunction = function(rangeFinder, widget, markOn, markOff, initMarks) {
if (widget == null) widget = "\u2194";
if (typeof widget == "string") {
var text = document.createTextNode(widget);
widget = document.createElement("span");
widget.appendChild(text);
widget.className = "CodeMirror-foldmarker";
}
if (markOn == null) markOn = "+";
if (typeof markOn == "string") {
var text = document.createTextNode(markOn);
markOn = document.createElement("span");
markOn.appendChild(text);
markOn.className = "CodeMirror-guttermarker CodeMirror-guttermarkerOn";
}
if (markOff == null) markOff = "-";
if (typeof markOff == "string") {
var text = document.createTextNode(markOff);
markOff = document.createElement("span");
markOff.appendChild(text);
markOff.className = "CodeMirror-guttermarker CodeMirror-guttermarkerOff";
}
return function(cm, pos) {
if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0);
var range = rangeFinder(cm, pos);
foldable = range && (range.from.line != range.to.line || range.from.ch != range.to.ch) ? true : false;
if (!range) return;
var present = cm.findMarksAt(range.from), cleared = 0;
for (var i = 0; i < present.length; ++i) {
if (present[i].__isFold) {
++cleared;
present[i].clear();
}
}
if (foldable) {
cm.setGutterMarker(pos.line, "CodeMirror-linenumbers", cleared || initMarks ? markOff.cloneNode(true) : markOn.cloneNode(true));
}
if (cleared || initMarks) return;
var myWidget = widget.cloneNode(true);
CodeMirror.on(myWidget, "mousedown", function() {myRange.clear();cm.setGutterMarker(pos.line, "CodeMirror-linenumbers", markOff.cloneNode(true));});
var myRange = cm.markText(range.from, range.to, {
replacedWith: myWidget,
clearOnEnter: true,
__isFold: true
});
};
};