Add support for click event node registration.

mindplot/src/main/javascript/TopicEventDispatcher.js

@@ -0,0 +1,77 @@
+/*
+ *    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.TopicEventDispatcher = new Class({
+    Extends: Events,
+    Static: {
+        _instance: null,
+
+        configure: function(readOnly) {
+            this._instance = new mindplot.TopicEventDispatcher(readOnly);
+        },
+
+        getInstance : function() {
+            return this._instance;
+        }
+    },
+
+    initialize:function(readOnly) {
+        this._readOnly = readOnly;
+        this._activeEditor = null;
+        this._multilineEditor = new mindplot.MultilineTextEditor();
+    },
+
+    close : function(update) {
+        if (this.isVisible()) {
+            this._activeEditor.close(update);
+            this._activeEditor = null;
+        }
+    },
+
+    show : function(topic, options) {
+        this.process(mindplot.TopicEvent.EDIT, topic, options);
+    },
+
+    process : function(eventType, topic, options) {
+
+        // Close all previous open editor ....
+        if (this.isVisible()) {
+            this.close();
+        }
+
+        // Open the new editor ...
+        var model = topic.getModel();
+        if (model.getShapeType() != mindplot.model.TopicShape.IMAGE && !this._readOnly && eventType == mindplot.TopicEvent.EDIT) {
+            this._multilineEditor.show(topic, options ? options.text : null);
+            this._activeEditor = this._multilineEditor;
+        } else {
+            this.fireEvent(eventType, {model:model,readOnly:this._readOnly});
+        }
+    },
+
+    isVisible: function() {
+        return this._activeEditor != null && this._activeEditor.isVisible();
+    }
+});
+
+
+mindplot.TopicEvent = {
+    EDIT : "editnode",
+    CLICK : "clicknode"
+};
+