74 lines
2.3 KiB
JavaScript
74 lines
2.3 KiB
JavaScript
|
(function() {
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
function doFold(cm, pos, options) {
|
||
|
|
var finder = options && (options.call ? options : options.rangeFinder);
|
||
|
|
if (!finder) finder = cm.getHelper(pos, "fold");
|
||
|
|
if (!finder) return;
|
||
|
|
if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0);
|
||
|
|
var minSize = options && options.minFoldSize || 0;
|
||
|
|
|
||
|
|
function getRange(allowFolded) {
|
||
|
|
var range = finder(cm, pos);
|
||
|
|
if (!range || range.to.line - range.from.line < minSize) return null;
|
||
|
|
var marks = cm.findMarksAt(range.from);
|
||
|
|
for (var i = 0; i < marks.length; ++i) {
|
||
|
|
if (marks[i].__isFold) {
|
||
|
|
if (!allowFolded) return null;
|
||
|
|
range.cleared = true;
|
||
|
|
marks[i].clear();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return range;
|
||
|
|
}
|
||
|
|
|
||
|
|
var range = getRange(true);
|
||
|
|
if (options && options.scanUp) while (!range && pos.line > cm.firstLine()) {
|
||
|
|
pos = CodeMirror.Pos(pos.line - 1, 0);
|
||
|
|
range = getRange(false);
|
||
|
|
}
|
||
|
|
if (!range || range.cleared) return;
|
||
|
|
|
||
|
|
var myWidget = makeWidget(options);
|
||
|
|
CodeMirror.on(myWidget, "mousedown", function() { myRange.clear(); });
|
||
|
|
var myRange = cm.markText(range.from, range.to, {
|
||
|
|
replacedWith: myWidget,
|
||
|
|
clearOnEnter: true,
|
||
|
|
__isFold: true
|
||
|
|
});
|
||
|
|
myRange.on("clear", function(from, to) {
|
||
|
|
CodeMirror.signal(cm, "unfold", cm, from, to);
|
||
|
|
});
|
||
|
|
CodeMirror.signal(cm, "fold", cm, range.from, range.to);
|
||
|
|
}
|
||
|
|
|
||
|
|
function makeWidget(options) {
|
||
|
|
var widget = (options && options.widget) || "\u2194";
|
||
|
|
if (typeof widget == "string") {
|
||
|
|
var text = document.createTextNode(widget);
|
||
|
|
widget = document.createElement("span");
|
||
|
|
widget.appendChild(text);
|
||
|
|
widget.className = "CodeMirror-foldmarker";
|
||
|
|
}
|
||
|
|
return widget;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clumsy backwards-compatible interface
|
||
|
|
CodeMirror.newFoldFunction = function(rangeFinder, widget) {
|
||
|
|
return function(cm, pos) { doFold(cm, pos, {rangeFinder: rangeFinder, widget: widget}); };
|
||
|
|
};
|
||
|
|
|
||
|
|
// New-style interface
|
||
|
|
CodeMirror.defineExtension("foldCode", function(pos, options) { doFold(this, pos, options); });
|
||
|
|
|
||
|
|
CodeMirror.registerHelper("fold", "combine", function() {
|
||
|
|
var funcs = Array.prototype.slice.call(arguments, 0);
|
||
|
|
return function(cm, start) {
|
||
|
|
for (var i = 0; i < funcs.length; ++i) {
|
||
|
|
var found = funcs[i](cm, start);
|
||
|
|
if (found) return found;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
});
|
||
|
|
})();
|