refactoring minplot layout

mindplot/pom.xml

@@ -38,6 +38,7 @@
                                 <!-- Generated for debug -->
                                 <concat destfile="${basedir}/target/tmp/mindplot.js" append="false">
                                     <filelist dir="${basedir}/src/main/javascript/" files="header.js"/>
+                                    <filelist dir="${basedir}/src/main/javascript/" files="EventBus.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/" files="Mindmap.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/" files="NodeModel.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/" files="RelationshipModel.js"/>
@@ -85,6 +86,7 @@
                                     <filelist dir="${basedir}/src/main/javascript/" files="DesignerActionRunner.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/" files="DesignerUndoManager.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/" files="ControlPoint.js"/>
+                                    <filelist dir="${basedir}/src/main/javascript/" files="EditorOptions.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/"
                                               files="commands/GenericFunctionCommand.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/"
@@ -109,6 +111,12 @@
                                               files="commands/AddRelationshipCommand.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/"
                                               files="commands/MoveControlPointCommand.js"/>
+                                    <filelist dir="${basedir}/src/main/javascript/"
+                                              files="layoutManagers/BaseLayoutManager.js"/>
+                                    <filelist dir="${basedir}/src/main/javascript/"
+                                              files="layoutManagers/OriginalLayoutManager.js"/>
+                                    <filelist dir="${basedir}/src/main/javascript/"
+                                              files="layoutManagers/LayoutManagerFactory.js"/>
                                     <filelist dir="${basedir}/src/main/javascript/" files="footer.js"/>
                                 </concat>
 
@@ -142,6 +150,7 @@
                                     <output>${basedir}/target/tmp/mindplot-min.js</output>
                                     <includes>
                                         <include>header-min.js</include>
+                                        <include>EventBus-min.js</include>
                                         <include>Mindmap-min.js</include>
                                         <include>NodeModel-min.js</include>
                                         <include>RelationshipModel-min.js</include>
@@ -185,6 +194,7 @@
                                         <include>IconModel-min.js</include>
                                         <include>LinkModel-min.js</include>
                                         <include>NoteModel-min.js</include>
+                                        <include>EditorOptions-min.js</include>
 
                                         <include>Command-min.js</include>
                                         <include>DesignerActionRunner-min.js</include>
@@ -203,6 +213,10 @@
                                         <include>commands/AddRelationshipCommand-min.js</include>
                                         <include>commands/MoveControlPointCommand-min.js</include>
 
+                                        <include>layoutManagers/BaseLayoutManager-min.js</include>
+                                        <include>layoutManagers/OriginalLayoutManager-min.js</include>
+                                        <include>layoutManagers/LayoutManagerFactory-min.js</include>
+
                                         <include>footer-min.js</include>
 
                                     </includes>

mindplot/src/main/javascript/CentralTopic.js

@@ -20,8 +20,7 @@ mindplot.CentralTopic = function(model)
 {
     core.assert(model, "Model can not be null");
     this.setModel(model);
-    var topicBoard = new mindplot.CentralTopicBoard(this);
+    mindplot.CentralTopic.superClass.initialize.call(this);
-    mindplot.CentralTopic.superClass.initialize.call(this, topicBoard);
     this.__onLoad = true;
 };
 
@@ -93,20 +92,6 @@ mindplot.CentralTopic.prototype._updatePositionOnChangeSize = function(oldSize,
     // Center main topic ...
     var zeroPoint = new core.Point(0, 0);
     this.setPosition(zeroPoint);
-
-    // Update children position based on the new figure size ...
-    var xOffset = newSize.width - oldSize.width;
-    xOffset = Math.round(xOffset / 2);
-
-    if (!this.__onLoad)
-    {
-        // HACK: on load ignore changes of position in order to avoid adding
-        // several times the central topic distance to all the child nodes...
-
-        var topicBoard = this.getTopicBoard();
-        topicBoard.updateChildrenPosition(this, xOffset);
-        this.__onLoad = false;
-    }
 };
 
 mindplot.CentralTopic.prototype._defaultText = function()

mindplot/src/main/javascript/CentralTopicBoard.js

@@ -16,9 +16,10 @@
 *   limitations under the License.
 */
 
-mindplot.CentralTopicBoard = function(centralTopic)
+mindplot.CentralTopicBoard = function(centralTopic, layoutManager)
 {
     var point = new core.Point(0, 0);
+    this._layoutManager = layoutManager;
     this._rightBoard = new mindplot.VariableDistanceBoard(50, point);
     this._leftBoard = new mindplot.VariableDistanceBoard(50, point);
     this._centralTopic = centralTopic;
@@ -36,7 +37,6 @@ mindplot.CentralTopicBoard.prototype._updateHeight = function()
 
 };
 
-
 mindplot.CentralTopicBoard.prototype.positionateDragTopic = function(dragTopic)
 {
     core.assert(dragTopic != null, 'dragTopic can not be null');

mindplot/src/main/javascript/DragTopic.js

@@ -85,9 +85,7 @@ mindplot.DragTopic.prototype.canBeConnectedTo = function(targetTopic)
             var targetTopicModel = targetTopic.getModel();
             var childTopicModel = draggedNode.getModel();
 
-            var targetTopicBoard = targetTopic.getTopicBoard();
+           result = targetTopicModel.canBeConnected(childTopicModel, topicPosition, 18);
-            var height = targetTopicBoard.getHeight();
-            result = targetTopicModel.canBeConnected(childTopicModel, topicPosition, height);
         }
     } else
     {

mindplot/src/main/javascript/DragTopicPositioner.js

@@ -16,13 +16,12 @@
 *   limitations under the License.
 */
 
-mindplot.DragTopicPositioner = function(workspace, topics)
+mindplot.DragTopicPositioner = function(layoutManager)
 {
-    core.assert(workspace, 'workspace can not be null');
+    core.assert(layoutManager, 'layoutManager can not be null');
-    core.assert(topics, 'topics can not be null');
+    this._layoutManager = layoutManager;
-
+    this._topics = layoutManager.getDesigner()._getTopics();
-    this._workspace = workspace;
+    this._workspace = layoutManager.getDesigner().getWorkSpace();
-    this._topics = topics;
 };
 
 mindplot.DragTopicPositioner.prototype.positionateDragTopic = function(dragTopic)
@@ -38,7 +37,7 @@ mindplot.DragTopicPositioner.prototype.positionateDragTopic = function(dragTopic
     if (dragTopic.isConnected())
     {
         var targetTopic = dragTopic.getConnectedToTopic();
-        var topicBoard = targetTopic.getTopicBoard();
+        var topicBoard = this._layoutManager.getTopicBoardForTopic(targetTopic);
         topicBoard.positionateDragTopic(dragTopic);
     }
 };

mindplot/src/main/javascript/EditorOptions.js

@@ -0,0 +1,5 @@
+mindplot.EditorOptions =
+{
+    LayoutManager:"OriginalLayout"
+//    NodeLayoutManager:"FreeLayout"
+};

mindplot/src/main/javascript/EventBus.js

@@ -0,0 +1,22 @@
+mindplot.EventBus = new Class({
+    options: {
+
+    },
+
+    initialize: function(options) {
+        this.setOptions(options);
+    }
+
+});
+mindplot.EventBus.implement(new Events);
+mindplot.EventBus.implement(new Options);
+
+mindplot.EventBus.events ={
+    NodeResizeEvent:'NodeResizeEvent',
+    NodeMoveEvent:'NodeMoveEvent',
+    NodeDisconnectEvent:'NodeDisconnectEvent',
+    NodeConnectEvent:'NodeConnectEvent',
+    NodeRepositionateEvent:'NodeRepositionateEvent'
+};
+
+mindplot.EventBus.instance = new mindplot.EventBus();

mindplot/src/main/javascript/FixedDistanceBoard.js

@@ -16,9 +16,10 @@
 *   limitations under the License.
 */
 
-mindplot.FixedDistanceBoard = function(defaultHeight, topic)
+mindplot.FixedDistanceBoard = function(defaultHeight, topic, layoutManager)
 {
     this._topic = topic;
+    this._layoutManager = layoutManager;
     var reference = topic.getPosition();
     mindplot.FixedDistanceBoard.superClass.initialize.call(this, defaultHeight, reference);
     this._height = defaultHeight;
@@ -161,7 +162,7 @@ mindplot.FixedDistanceBoard.prototype.repositionate = function()
             if (e && e.getTopic())
             {
                 var topic = e.getTopic();
-                var topicBoard = topic.getTopicBoard();
+                var topicBoard = this._layoutManager.getTopicBoardForTopic(topic);
                 var topicBoardHeight = topicBoard.getHeight();
 
 
@@ -184,7 +185,7 @@ mindplot.FixedDistanceBoard.prototype.repositionate = function()
         var parentTopic = topic.getParent();
         if (parentTopic != null)
         {
-            var board = parentTopic.getTopicBoard();
+            var board = this._layoutManager.getTopicBoardForTopic(parentTopic);
             board.repositionate();
         }
     }
@@ -218,7 +219,7 @@ mindplot.FixedDistanceBoard.prototype.repositionate = function()
             e.setLowerLimit(lowerLimit);
 
             // Update entry ...
-            var topicBoard = currentTopic.getTopicBoard();
+            var topicBoard = this._layoutManager.getTopicBoardForTopic(currentTopic);
             var topicBoardHeight = topicBoard.getHeight();
 
             upperLimit = lowerLimit + topicBoardHeight + mindplot.FixedDistanceBoard.INTER_TOPIC_DISTANCE;

mindplot/src/main/javascript/MainTopic.js

@@ -190,13 +190,6 @@ mindplot.MainTopic.prototype._updatePositionOnChangeSize = function(oldSize, new
             pos.x = pos.x - xOffset;
         }
         this.setPosition(pos);
-
-        // If height has changed, I must repositionate all elements ...
-        if (oldSize.height != newSize.height)
-        {
-            var topicBoard = this.getTopicBoard();
-            // topicBoard.repositionate();
-        }
     }
 };
 
@@ -205,8 +198,7 @@ mindplot.MainTopic.prototype.setPosition = function(point)
     mindplot.MainTopic.superClass.setPosition.call(this, point);
 
     // Update board zero entry position...
-    var topicBoard = this.getTopicBoard();
+    mindplot.EventBus.instance.fireEvent(mindplot.EventBus.events.NodeMoveEvent,[this]);
-    topicBoard.updateChildrenPosition(this);
 };
 
 mindplot.MainTopic.prototype.workoutIncomingConnectionPoint = function(sourcePosition)

mindplot/src/main/javascript/MainTopicBoard.js

@@ -16,8 +16,9 @@
 *   limitations under the License.
 */
 
-mindplot.MainTopicBoard = function(topic)
+mindplot.MainTopicBoard = function(topic, layoutManager)
 {
+    this._layoutManager = layoutManager;
     this._topic = topic;
     this._board = null;
     this._height = 0;
@@ -32,7 +33,7 @@ mindplot.MainTopicBoard.prototype._getBoard = function()
     if (!this._board)
     {
         var topic = this._topic;
-        this._board = new mindplot.FixedDistanceBoard(mindplot.MainTopicBoard.DEFAULT_MAIN_TOPIC_HEIGHT, topic);
+        this._board = new mindplot.FixedDistanceBoard(mindplot.MainTopicBoard.DEFAULT_MAIN_TOPIC_HEIGHT, topic, this._layoutManager);
     }
     return this._board;
 };
@@ -116,8 +117,7 @@ mindplot.MainTopicBoard.prototype.addBranch = function(topic)
     if (currentTopic.getOutgoingConnectedTopic())
     {
         var parentTopic = currentTopic.getOutgoingConnectedTopic();
-        var parentTopicBoard = parentTopic.getTopicBoard();
+        mindplot.EventBus.instance.fireEvent(mindplot.EventBus.events.NodeRepositionateEvent,[parentTopic]);
-        parentTopicBoard.repositionate();
     }
 };
 
@@ -137,7 +137,6 @@ mindplot.MainTopicBoard.prototype.removeTopicFromBoard = function(topic)
     if (parentTopic.getOutgoingConnectedTopic())
     {
         var connectedTopic = parentTopic.getOutgoingConnectedTopic();
-        var topicBoard = connectedTopic.getTopicBoard();
+        mindplot.EventBus.instance.fireEvent(mindplot.EventBus.events.NodeRepositionateEvent,[connectedTopic]);
-        topicBoard.repositionate();
     }
 };

mindplot/src/main/javascript/MindmapDesigner.js

@@ -40,28 +40,17 @@ mindplot.MindmapDesigner = function(profile, divElement)
 
     // Init layout managers ...
     this._topics = [];
-    this._dragTopicPositioner = new mindplot.DragTopicPositioner(this._workspace, this._topics);
+    var layoutManagerClass = mindplot.layoutManagers.LayoutManagerFactory.getManagerByName(mindplot.EditorOptions.LayoutManager);
+    this._layoutManager = new layoutManagerClass(this);
 
     // Register handlers..
     this._registerEvents();
 
-    // Init dragger manager.
-    this._dragger = this._buildDragManager(workspace);
-
-    // Add shapes to speed up the loading process ...
-    mindplot.DragTopic.initialize(workspace);
-
     this._relationships={};
 
     this._events = {};
 };
 
-
-mindplot.MindmapDesigner.prototype.getDragTopicPositioner = function()
-{
-    return this._dragTopicPositioner;
-};
-
 mindplot.MindmapDesigner.prototype._getTopics = function()
 {
     return this._topics;
@@ -90,62 +79,6 @@ mindplot.MindmapDesigner.prototype._fireEvent = function(eventType, event)
     }
 }
 
-mindplot.MindmapDesigner.prototype._buildDragManager = function(workspace)
-{
-    // Init dragger manager.
-    var dragger = new mindplot.DragManager(workspace);
-    var screen = workspace.getScreenManager();
-    var topics = this._getTopics();
-
-    var dragTopicPositioner = this.getDragTopicPositioner();
-    var mindmapDesigner = this;
-    var elem = this;
-
-    dragger.addEventListener('startdragging', function(event, node)
-    {
-        // Enable all mouse events.
-        for (var i = 0; i < topics.length; i++)
-        {
-            topics[i].setMouseEventsEnabled(false);
-        }
-    });
-
-    dragger.addEventListener('dragging', function(event, dragTopic)
-    {
-        // Update the state and connections of the topic ...
-        dragTopicPositioner.positionateDragTopic(dragTopic);
-    });
-
-    dragger.addEventListener('enddragging', function(event, dragTopic)
-    {
-        // Enable all mouse events.
-        for (var i = 0; i < topics.length; i++)
-        {
-            topics[i].setMouseEventsEnabled(true);
-        }
-        // Topic must be positioned in the real board postion.
-        if (dragTopic._isInTheWorkspace)
-        {
-            var draggedTopic = dragTopic.getDraggedTopic();
-
-            // Hide topic during draw ...
-            draggedTopic.setBranchVisibility(false);
-            var parentNode = draggedTopic.getParent();
-            dragTopic.updateDraggedTopic(workspace);
-
-
-            // Make all node visible ...
-            draggedTopic.setVisibility(true);
-            if (parentNode != null)
-            {
-                parentNode.setBranchVisibility(true);
-            }
-        }
-    });
-
-    return dragger;
-};
-
 mindplot.MindmapDesigner.prototype._registerEvents = function()
 {
     var mindmapDesigner = this;
@@ -199,7 +132,7 @@ mindplot.MindmapDesigner.prototype._buildNodeGraph = function(model)
     topics.push(topic);
 
     // Add Topic events ...
-    this._registerListenersOnNode(topic);
+    this._layoutManager.registerListenersOnNode(topic);
 
     // Connect Topic ...
     var isConnected = model.isConnected();
@@ -246,32 +179,6 @@ mindplot.MindmapDesigner.prototype.onObjectFocusEvent = function(currentObject,
     }
 };
 
-mindplot.MindmapDesigner.prototype._registerListenersOnNode = function(topic)
-{
-    // Register node listeners ...
-    var elem = this;
-    var topics = this._topics;
-    topic.addEventListener('onfocus', function(event)
-    {
-        elem.onObjectFocusEvent.attempt([topic, event], elem);
-    });
-
-    // Add drag behaviour ...
-    if (topic.getType() != mindplot.NodeModel.CENTRAL_TOPIC_TYPE)
-    {
-
-        // Central Topic doesn't support to be dragged
-        var dragger = this._dragger;
-        dragger.add(topic);
-    }
-
-    // Register editor events ...
-    if (!this._viewMode)
-    {
-        this._editor.listenEventOnNode(topic, 'dblclick', true);
-    }
-
-};
 mindplot.MindmapDesigner.prototype.zoomOut = function()
 {
     var scale = this._zoom * 1.2;
@@ -548,25 +455,6 @@ mindplot.MindmapDesigner.prototype._nodeModelToNodeGraph = function(nodeModel, i
 
     var children = nodeModel.getChildren().slice();
 
-    // Sort children by order to solve adding order ...
-    if (nodeGraph.getTopicType()!=mindplot.NodeModel.CENTRAL_TOPIC_TYPE && children.length > 0)
-    {
-        var oldChildren = children;
-        children = [];
-        for (var i = 0; i < oldChildren.length; i++)
-        {
-            var child = oldChildren[i];
-            var order = child.getOrder();
-            if (order != null)
-            {
-                children[order] = child;
-            } else
-            {
-                children.push(child);
-            }
-        }
-    }
-
     for (var i = 0; i < children.length; i++)
     {
         var child = children[i];

mindplot/src/main/javascript/Topic.js

@@ -23,9 +23,8 @@ mindplot.Topic = function()
 
 objects.extend(mindplot.Topic, mindplot.NodeGraph);
 
-mindplot.Topic.prototype.initialize = function(topicBoard)
+mindplot.Topic.prototype.initialize = function()
 {
-    core.assert(core.Utils.isDefined(topicBoard), 'topic board can not be null.');
 
     this._children = [];
     this._parent = null;
@@ -33,14 +32,13 @@ mindplot.Topic.prototype.initialize = function(topicBoard)
     this._relationships = [];
     this._isInWorkspace = false;
 
-    this._topicBoard = topicBoard;
     this._buildShape();
     this.setMouseEventsEnabled(true);
 
     // Positionate topic ....
     var model = this.getModel();
     var pos = model.getPosition();
-    if (pos != null)
+    if (pos != null && model.getType() == mindplot.NodeModel.CENTRAL_TOPIC_TYPE)
     {
         this.setPosition(pos);
     }
@@ -1103,6 +1101,9 @@ mindplot.Topic.prototype.setSize = function(size, force)
 
         // Update the figure position(ej: central topic must be centered) and children position.
         this._updatePositionOnChangeSize(oldSize, size);
+
+        mindplot.EventBus.instance.fireEvent(mindplot.EventBus.events.NodeResizeEvent,[this]);
+        
     }
 };
 
@@ -1131,8 +1132,7 @@ mindplot.Topic.prototype.disconnect = function(workspace)
         outgoingLine.removeFromWorkspace(workspace);
 
         // Remove from workspace.
-        var topicBoard = targetTopic.getTopicBoard();
+        mindplot.EventBus.instance.fireEvent(mindplot.EventBus.events.NodeDisconnectEvent,[targetTopic, this]);
-        topicBoard.removeTopicFromBoard(this);
 
         // Change text based on the current connection ...
         var model = this.getModel();
@@ -1215,8 +1215,7 @@ mindplot.Topic.prototype.connectTo = function(targetTopic, workspace, isVisible)
     var textShape = this.getTextShape();
 
     // Update topic position based on the state ...
-    var targetTopicBoard = targetTopic.getTopicBoard();
+    mindplot.EventBus.instance.fireEvent(mindplot.EventBus.events.NodeConnectEvent,[targetTopic, this]);
-    targetTopicBoard.addBranch(this);
 
     // Display connection node...
     var connector = targetTopic.getShrinkConnector();
@@ -1272,11 +1271,6 @@ mindplot.Topic.prototype.isInWorkspace = function(){
     return this._isInWorkspace;
 };
 
-mindplot.Topic.prototype.getTopicBoard = function()
-{
-    return this._topicBoard;
-};
-
 mindplot.Topic.prototype.createDragNode = function()
 {
     var dragNode = mindplot.Topic.superClass.createDragNode.call(this);

mindplot/src/main/javascript/XMLMindmapSerializer_Pela.js

@@ -76,15 +76,15 @@ mindplot.XMLMindmapSerializer_Pela.prototype._topicToXML = function(document, to
     } else
     {
         var parent = topic.getParent();
-        if (parent == null || parent.getType() == mindplot.NodeModel.CENTRAL_TOPIC_TYPE)
+//        if (parent == null || parent.getType() == mindplot.NodeModel.CENTRAL_TOPIC_TYPE)
-        {
+//        {
             var pos = topic.getPosition();
             parentTopic.setAttribute("position", pos.x + ',' + pos.y);
-        } else
+//        } else
-        {
+//        {
             var order = topic.getOrder();
             parentTopic.setAttribute("order", order);
-        }
+//        }
     }
 
     var text = topic.getText();

mindplot/src/main/javascript/header.js

@@ -24,4 +24,5 @@
 
 var mindplot = {};
 mindplot.util = {};
-mindplot.commands = {};
+mindplot.commands = {};
+mindplot.layoutManagers = {};

mindplot/src/main/javascript/layoutManagers/BaseLayoutManager.js

@@ -0,0 +1,41 @@
+/*
+Class: BaseLayoutManager
+	Base class for LayoutManagers
+
+Arguments:
+	element - the knob container
+	knob - the handle
+	options - see Options below
+
+Options:
+	steps - the number of steps for your slider.
+	mode - either 'horizontal' or 'vertical'. defaults to horizontal.
+	offset - relative offset for knob position. default to 0.
+
+Events:
+	onChange - a function to fire when the value changes.
+	onComplete - a function to fire when you're done dragging.
+	onTick - optionally, you can alter the onTick behavior, for example displaying an effect of the knob moving to the desired position.
+		Passes as parameter the new position.
+*/
+
+mindplot.layoutManagers.BaseLayoutManager = new Class({
+
+    options: {
+
+    },
+
+    initialize: function(designer, options) {
+        this.setOptions(options);
+        this._designer = designer;
+    },
+    addNode: function(node) {
+
+    },
+    getDesigner:function(){
+        return this._designer;
+    }
+});
+
+mindplot.layoutManagers.BaseLayoutManager.implement(new Events);
+mindplot.layoutManagers.BaseLayoutManager.implement(new Options);

mindplot/src/main/javascript/layoutManagers/LayoutManagerFactory.js

@@ -0,0 +1,16 @@
+mindplot.layoutManagers.LayoutManagerFactory = {};
+mindplot.layoutManagers.LayoutManagerFactory.managers = {
+    OriginalLayoutManager:mindplot.layoutManagers.OriginalLayoutManager
+//    FreeLayoutManager:mindplot.layoutManagers.FreeLayoutManager
+};
+mindplot.layoutManagers.LayoutManagerFactory.getManagerByName = function(name){
+    var manager = mindplot.layoutManagers.LayoutManagerFactory.managers[name+"Manager"];
+    if(manager){
+        return manager;
+    }
+    else{
+        return mindplot.layoutManagers.LayoutManagerFactory.managers["OriginalLayoutManager"]; 
+    }
+};
+
+

mindplot/src/main/javascript/layoutManagers/OriginalLayoutManager.js

@@ -0,0 +1,142 @@
+mindplot.layoutManagers.OriginalLayoutManager = mindplot.layoutManagers.BaseLayoutManager.extend({
+    options:{
+
+    },
+    initialize:function(designer, options){
+        this.parent(designer, options);
+        this._boards = new Hash();
+        this._dragTopicPositioner = new mindplot.DragTopicPositioner(this);
+        // Init dragger manager.
+        var workSpace = this.getDesigner().getWorkSpace();
+        this._dragger = this._buildDragManager(workSpace);
+
+        // Add shapes to speed up the loading process ...
+        mindplot.DragTopic.initialize(workSpace);
+
+        mindplot.EventBus.instance.addEvent(mindplot.EventBus.events.NodeResizeEvent,this._nodeResizeEvent.bind(this));
+        mindplot.EventBus.instance.addEvent(mindplot.EventBus.events.NodeMoveEvent,this._nodeMoveEvent.bind(this));
+        mindplot.EventBus.instance.addEvent(mindplot.EventBus.events.NodeDisconnectEvent,this._nodeDisconnectEvent.bind(this));
+        mindplot.EventBus.instance.addEvent(mindplot.EventBus.events.NodeConnectEvent,this._nodeConnectEvent.bind(this));
+        mindplot.EventBus.instance.addEvent(mindplot.EventBus.events.NodeRepositionateEvent,this._NodeRepositionateEvent.bind(this));
+    },
+    _nodeResizeEvent:function(node){
+        var size = node.getSize();
+        if(!this._isCentralTopic(node))
+            this.getTopicBoardForTopic(node).updateChildrenPosition(node,size.height/2);
+    },
+    _nodeMoveEvent:function(node){
+        this.getTopicBoardForTopic(node).updateChildrenPosition(node);
+    },
+    _nodeDisconnectEvent:function(targetNode, node){
+        this.getTopicBoardForTopic(targetNode).removeTopicFromBoard(node);
+    },
+    _nodeConnectEvent:function(targetNode, node){
+        this.getTopicBoardForTopic(targetNode).addBranch(node);
+    },
+    _NodeRepositionateEvent:function(node){
+        this.getTopicBoardForTopic(node).repositionate();
+    },
+    getDragTopicPositioner : function()
+    {
+        return this._dragTopicPositioner;
+    },
+    _buildDragManager: function(workspace)
+    {
+        // Init dragger manager.
+        var dragger = new mindplot.DragManager(workspace);
+        var topics = this.getDesigner()._getTopics();
+
+        var dragTopicPositioner = this.getDragTopicPositioner();
+
+        dragger.addEventListener('startdragging', function(event, node)
+        {
+            // Enable all mouse events.
+            for (var i = 0; i < topics.length; i++)
+            {
+                topics[i].setMouseEventsEnabled(false);
+            }
+        });
+
+        dragger.addEventListener('dragging', function(event, dragTopic)
+        {
+            // Update the state and connections of the topic ...
+            dragTopicPositioner.positionateDragTopic(dragTopic);
+        });
+
+        dragger.addEventListener('enddragging', function(event, dragTopic)
+        {
+            // Enable all mouse events.
+            for (var i = 0; i < topics.length; i++)
+            {
+                topics[i].setMouseEventsEnabled(true);
+            }
+            // Topic must be positioned in the real board postion.
+            if (dragTopic._isInTheWorkspace)
+            {
+                var draggedTopic = dragTopic.getDraggedTopic();
+
+                // Hide topic during draw ...
+                draggedTopic.setBranchVisibility(false);
+                var parentNode = draggedTopic.getParent();
+                dragTopic.updateDraggedTopic(workspace);
+
+
+                // Make all node visible ...
+                draggedTopic.setVisibility(true);
+                if (parentNode != null)
+                {
+                    parentNode.setBranchVisibility(true);
+                }
+            }
+        });
+
+        return dragger;
+    },
+    registerListenersOnNode : function(topic)
+    {
+        // Register node listeners ...
+        var designer = this.getDesigner();
+        topic.addEventListener('onfocus', function(event)
+        {
+            designer.onObjectFocusEvent.attempt([topic, event], designer);
+        });
+
+        // Add drag behaviour ...
+        if (topic.getType() != mindplot.NodeModel.CENTRAL_TOPIC_TYPE)
+        {
+
+            // Central Topic doesn't support to be dragged
+            var dragger = this._dragger;
+            dragger.add(topic);
+        }
+
+        /*// Register editor events ...
+        if (!this._viewMode)
+        {
+            this._editor.listenEventOnNode(topic, 'dblclick', true);
+        }*/
+
+    },
+    getTopicBoardForTopic:function(node){
+        var id = node.getId()
+        var result = this._boards[id];
+        if(!result){
+            result = this.addNode(node);
+        }
+        return result;
+    },
+    addNode:function(node){
+        var boardClass = mindplot.MainTopicBoard;
+        if (this._isCentralTopic(node))
+            boardClass = mindplot.CentralTopicBoard;
+        var board = new boardClass(node, this);
+        var id = node.getId();
+        this._boards[id]=board;
+        this.parent();
+        return board;
+    },
+    _isCentralTopic:function(node){
+        var type = node.getModel().getType();
+        return type == mindplot.NodeModel.CENTRAL_TOPIC_TYPE;
+    }
+});