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atom/vendor/ace/mode/folding/fold_mode.js

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3.8 KiB
JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Ajax.org Code Editor (ACE).
*
* The Initial Developer of the Original Code is
* Ajax.org B.V.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Fabian Jakobs <fabian AT ajax DOT org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
define(function(require, exports, module) {
"use strict";
var Range = require("../../range").Range;
var FoldMode = exports.FoldMode = function() {};
(function() {
this.foldingStartMarker = null;
this.foldingStopMarker = null;
// must return "" if there's no fold, to enable caching
this.getFoldWidget = function(session, foldStyle, row) {
var line = session.getLine(row);
if (this.foldingStartMarker.test(line))
return "start";
if (foldStyle == "markbeginend"
&& this.foldingStopMarker
&& this.foldingStopMarker.test(line))
return "end";
return "";
};
this.getFoldWidgetRange = function(session, foldStyle, row) {
return null;
};
this.indentationBlock = function(session, row, column) {
var re = /^\s*/;
var startRow = row;
var endRow = row;
var line = session.getLine(row);
var startColumn = column || line.length;
var startLevel = line.match(re)[0].length;
var maxRow = session.getLength()
while (++row < maxRow) {
line = session.getLine(row);
var level = line.match(re)[0].length;
if (level == line.length)
continue;
if (level <= startLevel)
break;
endRow = row;
}
if (endRow > startRow) {
var endColumn = session.getLine(endRow).length;
return new Range(startRow, startColumn, endRow, endColumn);
}
};
this.openingBracketBlock = function(session, bracket, row, column) {
var start = {row: row, column: column + 1};
var end = session.$findClosingBracket(bracket, start);
if (!end)
return;
var fw = session.foldWidgets[end.row];
if (fw == null)
fw = this.getFoldWidget(session, end.row);
if (fw == "start") {
end.row --;
end.column = session.getLine(end.row).length;
}
return Range.fromPoints(start, end);
};
}).call(FoldMode.prototype);
});