/* Copyright (c) 2015-present The Open Source Geospatial Foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* A utility class for detecting if the OpenLayers version is 3.x.x or 4.x.x.
*
* @class GeoExt.util.Version
*/
Ext.define('GeoExt.util.Version', {
statics: {
/**
* As OpenLayers itself doesn't has any version methods we check for
* functionality that is only supported in ol3.
* @return {boolean} true if ol version is 3.x.x false if 4.x.x
*/
isOl3: function () {
return !!(ol.animation && ol.Map.prototype.beforeRender);
},
/**
* Determine if the loaded version of OpenLayers is v.4.x.x.
* @return {boolean} true if ol version is 4.x.x false if 3.x.x
*/
isOl4: function () {
return !this.isOl3();
},
},
});