2016-04-01 13:17:09 +00:00
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/*
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*
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2019-01-17 12:58:05 +00:00
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* (c) Copyright Ascensio System Limited 2010-2019
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2016-04-01 13:17:09 +00:00
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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2019-01-17 13:00:34 +00:00
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* You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
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* street, Riga, Latvia, EU, LV-1050.
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2016-04-01 13:17:09 +00:00
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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2016-03-11 00:48:53 +00:00
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if (Common === undefined)
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var Common = {};
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Common.IrregularStack = function(config) {
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var _stack = [];
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var _compare = function(obj1, obj2){
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if (typeof obj1 === 'object' && typeof obj2 === 'object' && window.JSON)
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return window.JSON.stringify(obj1) === window.JSON.stringify(obj2);
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return obj1 === obj2;
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}
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config = config || {};
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var _strongCompare = config.strongCompare || _compare;
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var _weakCompare = config.weakCompare || _compare;
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var _indexOf = function(obj, compare) {
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for (var i = _stack.length - 1; i >= 0; i--) {
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if (compare(_stack[i], obj))
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return i;
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}
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return -1;
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}
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var _push = function(obj) {
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_stack.push(obj);
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}
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var _pop = function(obj) {
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var index = _indexOf(obj, _strongCompare);
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if (index != -1) {
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var removed = _stack.splice(index, 1);
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return removed[0];
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}
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return undefined;
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}
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var _get = function(obj) {
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var index = _indexOf(obj, _weakCompare);
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if (index != -1)
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return _stack[index];
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return undefined;
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}
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var _exist = function(obj) {
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return !(_indexOf(obj, _strongCompare) < 0);
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}
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return {
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push: _push,
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pop: _pop,
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get: _get,
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exist: _exist
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}
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};
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