Added ability to set dragStart, drag and dragEnd callbacks.

Author: photonstorm

v3/src/input/InteractiveObject.js

@@ -52,8 +52,13 @@ var InteractiveObject = function (gameObject, hitArea, hitAreaCallback)
         //  gameObject, pointer, x, y
         onMove: NOOP,
 
+        //  gameObject, pointer, x, y
         onDragStart: NOOP,
+
+        //  gameObject, pointer, x, y
         onDrag: NOOP,
+
+        //  gameObject, pointer, x, y
         onDragEnd: NOOP
 
     };

v3/src/input/local/SceneInputManager.js

@@ -107,6 +107,9 @@ var SceneInputManager = new Class({
     setOnOverCallback: require('./inc/SetOnOverCallback'),
     setOnUpCallback: require('./inc/SetOnUpCallback'),
     setOnMoveCallback: require('./inc/SetOnMoveCallback'),
+    setOnDragStartCallback: require('./inc/SetOnDragStartCallback'),
+    setOnDragCallback: require('./inc/SetOnDragCallback'),
+    setOnDragEndCallback: require('./inc/SetOnDragEndCallback'),
 
     processOverOutEvents: require('./inc/ProcessOverOutEvents'),
     processDownEvents: require('./inc/ProcessDownEvents'),

v3/src/input/local/inc/ProcessDragEvents.js

@@ -203,9 +203,12 @@ var ProcessDragEvents = function (pointer, time)
                 this.events.dispatch(new InputEvent.DRAG_ENTER(pointer, gameObject, input.target));
             }
 
-            this.events.dispatch(new InputEvent.DRAG(pointer, gameObject));
+            var dragEvent = new InputEvent.DRAG(pointer, gameObject);
 
-            input.onDrag(gameObject, pointer);
+            this.events.dispatch(dragEvent);
+
+            //  Maybe it would be better to send the event to the callback? So you can get all the other stuff from it?
+            input.onDrag(gameObject, pointer, dragEvent.dragX, dragEvent.dragY);
         }
     }
 

v3/src/input/local/inc/SetOnDragCallback.js

@@ -0,0 +1,6 @@
+var SetOnDragCallback = function (gameObjects, callback, context)
+{
+    return this.setCallback(gameObjects, 'onDrag', callback, context);
+};
+
+module.exports = SetOnDragCallback;

v3/src/input/local/inc/SetOnDragEndCallback.js

@@ -0,0 +1,6 @@
+var SetOnDragEndCallback = function (gameObjects, callback, context)
+{
+    return this.setCallback(gameObjects, 'onDragEnd', callback, context);
+};
+
+module.exports = SetOnDragEndCallback;

v3/src/input/local/inc/SetOnDragStartCallback.js

@@ -0,0 +1,6 @@
+var SetOnDragStartCallback = function (gameObjects, callback, context)
+{
+    return this.setCallback(gameObjects, 'onDragStart', callback, context);
+};
+
+module.exports = SetOnDragStartCallback;