wisemapping-open-source/mindplot/src/main/javascript/commands/AddTopicCommand.js

/*
 *    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.AddTopicCommand = new Class(
    {
        Extends:mindplot.Command,
        initialize: function(model, parentTopicId, animated) {
            $assert(model, 'Model can not be null');

            this.parent();
            this._model = model;
            this._parentId = parentTopicId;
            this._id = mindplot.Command._nextUUID();
            this._animated = $defined(animated) ? animated : false;
        },

        execute: function(commandContext) {

            // Add a new topic ...
           var topic = commandContext.createTopic(this._model, !this._animated);

            // Connect to topic ...
            if ($defined(this._parentId)) {
                var parentTopic = commandContext.findTopics(this._parentId)[0];
                commandContext.connect(topic, parentTopic, !this._animated);
            }

            var doneFn = function() {
                // Finally, focus ...
                var designer = commandContext._designer;
                designer.onObjectFocusEvent(topic);
                topic.setOnFocus(true);
            };

            if (this._animated) {
                core.Utils.setVisibilityAnimated([topic,topic.getOutgoingLine()], true, doneFn);
            } else  {
                doneFn.attempt();
            }
        },

        undoExecute: function(commandContext) {
            // Finally, delete the topic from the workspace ...
            var topicId = this._model.getId();
            var topic = commandContext.findTopics(topicId)[0];
            var doneFn = function() {
                commandContext.deleteTopic(topic);
            };
            if (this._animated) {
                core.Utils.setVisibilityAnimated([topic,topic.getOutgoingLine()], false, doneFn);
            }
            else
                doneFn.attempt();
        }
    });