overleaf/services/web/public/js/ace/mouse/fold_handler.js
2014-02-12 10:23:40 +00:00

93 lines
3.5 KiB
JavaScript
Executable file

/* ***** BEGIN LICENSE BLOCK *****
* Distributed under the BSD license:
*
* Copyright (c) 2010, Ajax.org B.V.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Ajax.org B.V. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ***** END LICENSE BLOCK ***** */
define(function(require, exports, module) {
"use strict";
function FoldHandler(editor) {
editor.on("click", function(e) {
var position = e.getDocumentPosition();
var session = editor.session;
// If the user clicked on a fold, then expand it.
var fold = session.getFoldAt(position.row, position.column, 1);
if (fold) {
if (e.getAccelKey())
session.removeFold(fold);
else
session.expandFold(fold);
e.stop();
}
});
editor.on("gutterclick", function(e) {
var gutterRegion = editor.renderer.$gutterLayer.getRegion(e);
if (gutterRegion == "foldWidgets") {
var row = e.getDocumentPosition().row;
var session = editor.session;
if (session.foldWidgets && session.foldWidgets[row])
editor.session.onFoldWidgetClick(row, e);
if (!editor.isFocused())
editor.focus();
e.stop();
}
});
editor.on("gutterdblclick", function(e) {
var gutterRegion = editor.renderer.$gutterLayer.getRegion(e);
if (gutterRegion == "foldWidgets") {
var row = e.getDocumentPosition().row;
var session = editor.session;
var data = session.getParentFoldRangeData(row, true);
var range = data.range || data.firstRange;
if (range) {
row = range.start.row;
var fold = session.getFoldAt(row, session.getLine(row).length, 1);
if (fold) {
session.removeFold(fold);
} else {
session.addFold("...", range);
editor.renderer.scrollCursorIntoView({row: range.start.row, column: 0});
}
}
e.stop();
}
});
}
exports.FoldHandler = FoldHandler;
});