/*
*    Copyright [2011] [wisemapping]
*
*   Licensed under WiseMapping Public License, Version 1.0 (the "License").
*   It is basically the Apache License, Version 2.0 (the "License") plus the
*   "powered by wisemapping" text requirement on every single page;
*   you may not use this file except in compliance with the License.
*   You may obtain a copy of the license at
*
*       http://www.wisemapping.org/license
*
*   Unless required by applicable law or agreed to in writing, software
*   distributed under the License is distributed on an "AS IS" BASIS,
*   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*   See the License for the specific language governing permissions and
*   limitations under the License.
*/

mindplot.commands.RemoveLinkFromTopicCommand =new Class(
{
    Extends:mindplot.Command,
    initialize: function(topicId)
    {
        $assert(topicId, 'topicId can not be null');
        this._selectedObjectsIds = topicId;
    },
    execute: function(commandContext)
    {
        var topic = commandContext.findTopics(this._selectedObjectsIds)[0];
        this._url = topic._link.getUrl();
        var updated = function() {
            topic.removeLink();
        }.bind(this);
        updated.delay(0);
    },
    undoExecute: function(commandContext)
    {
        var topic = commandContext.findTopics(this._selectedObjectsIds)[0];
        var updated = function() {
            topic.addLink(this._url,commandContext._designer);
            topic.updateNode();
        }.bind(this);
        updated.delay(0);
    }
});