зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
3.8 KiB
JavaScript
112 строки
3.8 KiB
JavaScript
# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is the Firefox Preferences System.
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#
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# The Initial Developer of the Original Code is
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# Ben Goodger.
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# Portions created by the Initial Developer are Copyright (C) 2005
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Ben Goodger <ben@mozilla.org>
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# Felix Fung <felix.the.cheshire.cat@gmail.com>
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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var gTreeUtils = {
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deleteAll: function (aTree, aView, aItems, aDeletedItems)
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{
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for (var i = 0; i < aItems.length; ++i)
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aDeletedItems.push(aItems[i]);
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aItems.splice(0, aItems.length);
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var oldCount = aView.rowCount;
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aView._rowCount = 0;
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aTree.treeBoxObject.rowCountChanged(0, -oldCount);
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},
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deleteSelectedItems: function (aTree, aView, aItems, aDeletedItems)
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{
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var selection = aTree.view.selection;
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selection.selectEventsSuppressed = true;
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var rc = selection.getRangeCount();
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for (var i = 0; i < rc; ++i) {
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var min = { }; var max = { };
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selection.getRangeAt(i, min, max);
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for (var j = min.value; j <= max.value; ++j) {
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aDeletedItems.push(aItems[j]);
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aItems[j] = null;
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}
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}
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var nextSelection = 0;
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for (i = 0; i < aItems.length; ++i) {
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if (!aItems[i]) {
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var j = i;
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while (j < aItems.length && !aItems[j])
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++j;
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aItems.splice(i, j - i);
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nextSelection = j < aView.rowCount ? j - 1 : j - 2;
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aView._rowCount -= j - i;
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aTree.treeBoxObject.rowCountChanged(i, i - j);
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}
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}
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if (aItems.length) {
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selection.select(nextSelection);
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aTree.treeBoxObject.ensureRowIsVisible(nextSelection);
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aTree.focus();
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}
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selection.selectEventsSuppressed = false;
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},
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sort: function (aTree, aView, aDataSet, aColumn, aComparator,
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aLastSortColumn, aLastSortAscending)
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{
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var ascending = (aColumn == aLastSortColumn) ? !aLastSortAscending : true;
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if (aDataSet.length == 0)
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return ascending;
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var numericSort = !isNaN(aDataSet[0][aColumn]);
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var sortFunction = null;
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if (aComparator) {
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sortFunction = function (a, b) { return aComparator(a[aColumn], b[aColumn]); };
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}
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aDataSet.sort(sortFunction);
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if (!ascending)
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aDataSet.reverse();
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aTree.view.selection.select(-1);
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aTree.view.selection.select(0);
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aTree.treeBoxObject.invalidate();
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aTree.treeBoxObject.ensureRowIsVisible(0);
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return ascending;
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}
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};
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