Refactor designer moving methods to a designer model.

mindplot/src/main/javascript/commands/DeleteCommand.js

@@ -0,0 +1,97 @@
+/*
+ *    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.DeleteCommand = new Class({
+    Extends:mindplot.Command,
+    initialize: function(objectIds) {
+        $assert(objectIds, "objectIds must be defined");
+        this._objectsIds = objectIds;
+        this._deletedTopicModels = [];
+        this._parentTopicIds = [];
+        this._deletedRelationships = [];
+        this._id = mindplot.Command._nextUUID();
+    },
+
+    execute: function(commandContext) {
+        var topics = commandContext.findTopics(this._objectsIds.nodes);
+        if (topics.length > 0) {
+            topics.forEach(
+                function(topic, index) {
+                    var model = topic.getModel().clone();
+
+                    //delete relationships
+                    var relationships = topic.getRelationships();
+                    while (relationships.length > 0) {
+                        var relationship = relationships[0];
+                        this._deletedRelationships.push(relationship.getModel().clone());
+                        commandContext.removeRelationship(relationship.getModel());
+                    }
+
+                    this._deletedTopicModels.push(model);
+
+                    // Is connected?.
+                    var outTopic = topic.getOutgoingConnectedTopic();
+                    var outTopicId = null;
+                    if (outTopic != null) {
+                        outTopicId = outTopic.getId();
+                    }
+                    this._parentTopicIds.push(outTopicId);
+
+                    // Finally, delete the topic from the workspace...
+                    commandContext.deleteTopic(topic);
+
+                }.bind(this)
+            );
+        }
+        var lines = commandContext.findRelationships(this._objectsIds.relationship);
+        if (lines.length > 0) {
+            lines.forEach(function(line, index) {
+                if (line.isInWorkspace()) {
+                    this._deletedRelationships.push(line.getModel().clone());
+                    commandContext.removeRelationship(line.getModel());
+                }
+            }.bind(this));
+        }
+    },
+    undoExecute: function(commandContext) {
+
+        var topics = commandContext.findTopics(this._objectsIds);
+        var parent = commandContext.findTopics(this._parentTopicIds);
+
+        this._deletedTopicModels.forEach(
+            function(model, index) {
+                var topic = commandContext.createTopic(model);
+
+                // Was the topic connected?
+                var parentTopic = parent[index];
+                if (parentTopic != null) {
+                    commandContext.connect(topic, parentTopic);
+                }
+
+            }.bind(this)
+        );
+        this._deletedRelationships.forEach(
+            function(relationship, index) {
+                commandContext.createRelationship(relationship);
+            }.bind(this));
+
+        this._deletedTopicModels = [];
+        this._parentTopicIds = [];
+        this._deletedRelationships = [];
+    }
+});