src/cm/media/js/lib/yui/yui3-3.15.0/build/dd-drag/dd-drag.js
changeset 602 e16a97fb364a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui3-3.15.0/build/dd-drag/dd-drag.js	Mon Mar 10 15:19:48 2014 +0100
@@ -0,0 +1,1264 @@
+YUI.add('dd-drag', function (Y, NAME) {
+
+
+    /**
+     * Provides the ability to drag a Node.
+     * @module dd
+     * @submodule dd-drag
+     */
+    /**
+     * Provides the ability to drag a Node.
+     * @class Drag
+     * @extends Base
+     * @constructor
+     * @namespace DD
+     */
+
+    var DDM = Y.DD.DDM,
+        NODE = 'node',
+        DRAGGING = 'dragging',
+        DRAG_NODE = 'dragNode',
+        OFFSET_HEIGHT = 'offsetHeight',
+        OFFSET_WIDTH = 'offsetWidth',
+        /**
+        * Handles the mouseup DOM event, does nothing internally just fires.
+        * @event drag:mouseup
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        /**
+        * Handles the mousedown DOM event, checks to see if you have a valid handle then starts the drag timers.
+        * @event drag:mouseDown
+        * @preventable _defMouseDownFn
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl><dt>ev</dt><dd>The original mousedown event.</dd></dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_MOUSE_DOWN = 'drag:mouseDown',
+        /**
+        * Fires after the mousedown event has been cleared.
+        * @event drag:afterMouseDown
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl><dt>ev</dt><dd>The original mousedown event.</dd></dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_AFTER_MOUSE_DOWN = 'drag:afterMouseDown',
+        /**
+        * Fires after a handle is removed.
+        * @event drag:removeHandle
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl><dt>handle</dt><dd>The handle that was removed.</dd></dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_REMOVE_HANDLE = 'drag:removeHandle',
+        /**
+        * Fires after a handle is added.
+        * @event drag:addHandle
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl><dt>handle</dt><dd>The handle that was added.</dd></dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_ADD_HANDLE = 'drag:addHandle',
+        /**
+        * Fires after an invalid selector is removed.
+        * @event drag:removeInvalid
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl><dt>handle</dt><dd>The handle that was removed.</dd></dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_REMOVE_INVALID = 'drag:removeInvalid',
+        /**
+        * Fires after an invalid selector is added.
+        * @event drag:addInvalid
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl><dt>handle</dt><dd>The handle that was added.</dd></dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_ADD_INVALID = 'drag:addInvalid',
+        /**
+        * Fires at the start of a drag operation.
+        * @event drag:start
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>pageX</dt><dd>The original node position X.</dd>
+        * <dt>pageY</dt><dd>The original node position Y.</dd>
+        * <dt>startTime</dt><dd>The startTime of the event. getTime on the current Date object.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_START = 'drag:start',
+        /**
+        * Fires at the end of a drag operation.
+        * @event drag:end
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>pageX</dt><dd>The current node position X.</dd>
+        * <dt>pageY</dt><dd>The current node position Y.</dd>
+        * <dt>startTime</dt><dd>The startTime of the event, from the start event.</dd>
+        * <dt>endTime</dt><dd>The endTime of the event. getTime on the current Date object.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_END = 'drag:end',
+        /**
+        * Fires every mousemove during a drag operation.
+        * @event drag:drag
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>pageX</dt><dd>The current node position X.</dd>
+        * <dt>pageY</dt><dd>The current node position Y.</dd>
+        * <dt>scroll</dt><dd>Should a scroll action occur.</dd>
+        * <dt>info</dt><dd>Object hash containing calculated XY arrays: start, xy, delta, offset</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_DRAG = 'drag:drag',
+        /**
+        * Fires when this node is aligned.
+        * @event drag:align
+        * @preventable _defAlignFn
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>pageX</dt><dd>The current node position X.</dd>
+        * <dt>pageY</dt><dd>The current node position Y.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        EV_ALIGN = 'drag:align',
+        /**
+        * Fires when this node is over a Drop Target. (Fired from dd-drop)
+        * @event drag:over
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>drop</dt><dd>The drop object at the time of the event.</dd>
+        * <dt>drag</dt><dd>The drag object at the time of the event.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        /**
+        * Fires when this node enters a Drop Target. (Fired from dd-drop)
+        * @event drag:enter
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>drop</dt><dd>The drop object at the time of the event.</dd>
+        * <dt>drag</dt><dd>The drag object at the time of the event.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        /**
+        * Fires when this node exits a Drop Target. (Fired from dd-drop)
+        * @event drag:exit
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>drop</dt><dd>The drop object at the time of the event.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        /**
+        * Fires when this node is dropped on a valid Drop Target. (Fired from dd-ddm-drop)
+        * @event drag:drophit
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>drop</dt><dd>The best guess on what was dropped on.</dd>
+        * <dt>drag</dt><dd>The drag object at the time of the event.</dd>
+        * <dt>others</dt><dd>An array of all the other drop targets that was dropped on.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+        /**
+        * Fires when this node is dropped on an invalid Drop Target. (Fired from dd-ddm-drop)
+        * @event drag:dropmiss
+        * @param {EventFacade} event An Event Facade object with the following specific property added:
+        * <dl>
+        * <dt>pageX</dt><dd>The current node position X.</dd>
+        * <dt>pageY</dt><dd>The current node position Y.</dd>
+        * </dl>
+        * @bubbles DDM
+        * @type {CustomEvent}
+        */
+
+    Drag = function(o) {
+        this._lazyAddAttrs = false;
+        Drag.superclass.constructor.apply(this, arguments);
+
+        var valid = DDM._regDrag(this);
+        if (!valid) {
+            Y.error('Failed to register node, already in use: ' + o.node);
+        }
+    };
+
+    Drag.NAME = 'drag';
+
+    /**
+    * This property defaults to "mousedown", but when drag-gestures is loaded, it is changed to "gesturemovestart"
+    * @static
+    * @property START_EVENT
+    */
+    Drag.START_EVENT = 'mousedown';
+
+    Drag.ATTRS = {
+        /**
+        * Y.Node instance to use as the element to initiate a drag operation
+        * @attribute node
+        * @type Node
+        */
+        node: {
+            setter: function(node) {
+                if (this._canDrag(node)) {
+                    return node;
+                }
+                var n = Y.one(node);
+                if (!n) {
+                    Y.error('DD.Drag: Invalid Node Given: ' + node);
+                }
+                return n;
+            }
+        },
+        /**
+        * Y.Node instance to use as the draggable element, defaults to node
+        * @attribute dragNode
+        * @type Node
+        */
+        dragNode: {
+            setter: function(node) {
+                if (this._canDrag(node)) {
+                    return node;
+                }
+                var n = Y.one(node);
+                if (!n) {
+                    Y.error('DD.Drag: Invalid dragNode Given: ' + node);
+                }
+                return n;
+            }
+        },
+        /**
+        * Offset the drag element by the difference in cursor position: default true
+        * @attribute offsetNode
+        * @type Boolean
+        */
+        offsetNode: {
+            value: true
+        },
+        /**
+        * Center the dragNode to the mouse position on drag:start: default false
+        * @attribute startCentered
+        * @type Boolean
+        */
+        startCentered: {
+            value: false
+        },
+        /**
+        * The number of pixels to move to start a drag operation, default is 3.
+        * @attribute clickPixelThresh
+        * @type Number
+        */
+        clickPixelThresh: {
+            value: DDM.get('clickPixelThresh')
+        },
+        /**
+        * The number of milliseconds a mousedown has to pass to start a drag operation, default is 1000.
+        * @attribute clickTimeThresh
+        * @type Number
+        */
+        clickTimeThresh: {
+            value: DDM.get('clickTimeThresh')
+        },
+        /**
+        * Set to lock this drag element so that it can't be dragged: default false.
+        * @attribute lock
+        * @type Boolean
+        */
+        lock: {
+            value: false,
+            setter: function(lock) {
+                if (lock) {
+                    this.get(NODE).addClass(DDM.CSS_PREFIX + '-locked');
+                } else {
+                    this.get(NODE).removeClass(DDM.CSS_PREFIX + '-locked');
+                }
+                return lock;
+            }
+        },
+        /**
+        * A payload holder to store arbitrary data about this drag object, can be used to store any value.
+        * @attribute data
+        * @type Mixed
+        */
+        data: {
+            value: false
+        },
+        /**
+        * If this is false, the drag element will not move with the cursor: default true. Can be used to "resize" the element.
+        * @attribute move
+        * @type Boolean
+        */
+        move: {
+            value: true
+        },
+        /**
+        * Use the protective shim on all drag operations: default true. Only works with dd-ddm, not dd-ddm-base.
+        * @attribute useShim
+        * @type Boolean
+        */
+        useShim: {
+            value: true
+        },
+        /**
+        * Config option is set by Drag to inform you of which handle fired the drag event (in the case that there are several handles): default false.
+        * @attribute activeHandle
+        * @type Node
+        */
+        activeHandle: {
+            value: false
+        },
+        /**
+        * By default a drag operation will only begin if the mousedown occurred with the primary mouse button.
+        * Setting this to false will allow for all mousedown events to trigger a drag.
+        * @attribute primaryButtonOnly
+        * @type Boolean
+        */
+        primaryButtonOnly: {
+            value: true
+        },
+        /**
+        * This attribute is not meant to be used by the implementor, it is meant to be used as an Event tracker so you can listen for it to change.
+        * @attribute dragging
+        * @type Boolean
+        */
+        dragging: {
+            value: false
+        },
+        parent: {
+            value: false
+        },
+        /**
+        * This attribute only works if the dd-drop module has been loaded. It will make this node a drop target as well as draggable.
+        * @attribute target
+        * @type Boolean
+        */
+        target: {
+            value: false,
+            setter: function(config) {
+                this._handleTarget(config);
+                return config;
+            }
+        },
+        /**
+        * This attribute only works if the dd-drop module is active. It will set the dragMode (point, intersect, strict) of this Drag instance.
+        * @attribute dragMode
+        * @type String
+        */
+        dragMode: {
+            value: null,
+            setter: function(mode) {
+                return DDM._setDragMode(mode);
+            }
+        },
+        /**
+        * Array of groups to add this drag into.
+        * @attribute groups
+        * @type Array
+        */
+        groups: {
+            value: ['default'],
+            getter: function() {
+                if (!this._groups) {
+                    this._groups = {};
+                    return [];
+                }
+
+                return Y.Object.keys(this._groups);
+            },
+            setter: function(g) {
+                this._groups = Y.Array.hash(g);
+                return g;
+            }
+        },
+        /**
+        * Array of valid handles to add. Adding something here will set all handles, even if previously added with addHandle
+        * @attribute handles
+        * @type Array
+        */
+        handles: {
+            value: null,
+            setter: function(g) {
+                if (g) {
+                    this._handles = {};
+                    Y.Array.each(g, function(v) {
+                        var key = v;
+                        if (v instanceof Y.Node || v instanceof Y.NodeList) {
+                            key = v._yuid;
+                        }
+                        this._handles[key] = v;
+                    }, this);
+                } else {
+                    this._handles = null;
+                }
+                return g;
+            }
+        },
+        /**
+        * Controls the default bubble parent for this Drag instance. Default: Y.DD.DDM. Set to false to disable bubbling. Use bubbleTargets in config
+        * @deprecated
+        * @attribute bubbles
+        * @type Object
+        */
+        bubbles: {
+            setter: function(t) {
+                this.addTarget(t);
+                return t;
+            }
+        },
+        /**
+        * Should the mousedown event be halted. Default: true
+        * @attribute haltDown
+        * @type Boolean
+        */
+        haltDown: {
+            value: true
+        }
+    };
+
+    Y.extend(Drag, Y.Base, {
+        /**
+        * Checks the object for the methods needed to drag the object around.
+        * Normally this would be a node instance, but in the case of Graphics, it
+        * may be an SVG node or something similar.
+        * @method _canDrag
+        * @private
+        * @param {Object} n The object to check
+        * @return {Boolean} True or false if the Object contains the methods needed to Drag
+        */
+        _canDrag: function(n) {
+            if (n && n.setXY && n.getXY && n.test && n.contains) {
+                return true;
+            }
+            return false;
+        },
+        /**
+        * The default bubbleTarget for this object. Default: Y.DD.DDM
+        * @private
+        * @property _bubbleTargets
+        */
+        _bubbleTargets: Y.DD.DDM,
+        /**
+        * Add this Drag instance to a group, this should be used for on-the-fly group additions.
+        * @method addToGroup
+        * @param {String} g The group to add this Drag Instance to.
+        * @chainable
+        */
+        addToGroup: function(g) {
+            this._groups[g] = true;
+            DDM._activateTargets();
+            return this;
+        },
+        /**
+        * Remove this Drag instance from a group, this should be used for on-the-fly group removals.
+        * @method removeFromGroup
+        * @param {String} g The group to remove this Drag Instance from.
+        * @chainable
+        */
+        removeFromGroup: function(g) {
+            delete this._groups[g];
+            DDM._activateTargets();
+            return this;
+        },
+        /**
+        * This will be a reference to the Drop instance associated with this drag if the target: true config attribute is set..
+        * @property target
+        * @type {Object}
+        */
+        target: null,
+        /**
+        * Attribute handler for the target config attribute.
+        * @private
+        * @method _handleTarget
+        * @param {Boolean/Object} config The Config
+        */
+        _handleTarget: function(config) {
+            if (Y.DD.Drop) {
+                if (config === false) {
+                    if (this.target) {
+                        DDM._unregTarget(this.target);
+                        this.target = null;
+                    }
+                } else {
+                    if (!Y.Lang.isObject(config)) {
+                        config = {};
+                    }
+                    config.bubbleTargets = config.bubbleTargets || this.getTargets();
+                    config.node = this.get(NODE);
+                    config.groups = config.groups || this.get('groups');
+                    this.target = new Y.DD.Drop(config);
+                }
+            }
+        },
+        /**
+        * Storage Array for the groups this drag belongs to.
+        * @private
+        * @property _groups
+        * @type {Array}
+        */
+        _groups: null,
+        /**
+        * This method creates all the events for this Event Target and publishes them so we get Event Bubbling.
+        * @private
+        * @method _createEvents
+        */
+        _createEvents: function() {
+
+            this.publish(EV_MOUSE_DOWN, {
+                defaultFn: this._defMouseDownFn,
+                queuable: false,
+                emitFacade: true,
+                bubbles: true,
+                prefix: 'drag'
+            });
+
+            this.publish(EV_ALIGN, {
+                defaultFn: this._defAlignFn,
+                queuable: false,
+                emitFacade: true,
+                bubbles: true,
+                prefix: 'drag'
+            });
+
+            this.publish(EV_DRAG, {
+                defaultFn: this._defDragFn,
+                queuable: false,
+                emitFacade: true,
+                bubbles: true,
+                prefix: 'drag'
+            });
+
+            this.publish(EV_END, {
+                defaultFn: this._defEndFn,
+                preventedFn: this._prevEndFn,
+                queuable: false,
+                emitFacade: true,
+                bubbles: true,
+                prefix: 'drag'
+            });
+
+            var ev = [
+                EV_AFTER_MOUSE_DOWN,
+                EV_REMOVE_HANDLE,
+                EV_ADD_HANDLE,
+                EV_REMOVE_INVALID,
+                EV_ADD_INVALID,
+                EV_START,
+                'drag:drophit',
+                'drag:dropmiss',
+                'drag:over',
+                'drag:enter',
+                'drag:exit'
+            ];
+
+            Y.Array.each(ev, function(v) {
+                this.publish(v, {
+                    type: v,
+                    emitFacade: true,
+                    bubbles: true,
+                    preventable: false,
+                    queuable: false,
+                    prefix: 'drag'
+                });
+            }, this);
+        },
+        /**
+        * A private reference to the mousedown DOM event
+        * @private
+        * @property _ev_md
+        * @type {EventFacade}
+        */
+        _ev_md: null,
+        /**
+        * The getTime of the mousedown event. Not used, just here in case someone wants/needs to use it.
+        * @private
+        * @property _startTime
+        * @type Date
+        */
+        _startTime: null,
+        /**
+        * The getTime of the mouseup event. Not used, just here in case someone wants/needs to use it.
+        * @private
+        * @property _endTime
+        * @type Date
+        */
+        _endTime: null,
+        /**
+        * A private hash of the valid drag handles
+        * @private
+        * @property _handles
+        * @type {Object}
+        */
+        _handles: null,
+        /**
+        * A private hash of the invalid selector strings
+        * @private
+        * @property _invalids
+        * @type {Object}
+        */
+        _invalids: null,
+        /**
+        * A private hash of the default invalid selector strings: {'textarea': true, 'input': true, 'a': true, 'button': true, 'select': true}
+        * @private
+        * @property _invalidsDefault
+        * @type {Object}
+        */
+        _invalidsDefault: {'textarea': true, 'input': true, 'a': true, 'button': true, 'select': true },
+        /**
+        * Private flag to see if the drag threshhold was met
+        * @private
+        * @property _dragThreshMet
+        * @type {Boolean}
+        */
+        _dragThreshMet: null,
+        /**
+        * Flag to determine if the drag operation came from a timeout
+        * @private
+        * @property _fromTimeout
+        * @type {Boolean}
+        */
+        _fromTimeout: null,
+        /**
+        * Holder for the setTimeout call
+        * @private
+        * @property _clickTimeout
+        * @type {Boolean}
+        */
+        _clickTimeout: null,
+        /**
+        * The offset of the mouse position to the element's position
+        * @property deltaXY
+        * @type {Array}
+        */
+        deltaXY: null,
+        /**
+        * The initial mouse position
+        * @property startXY
+        * @type {Array}
+        */
+        startXY: null,
+        /**
+        * The initial element position
+        * @property nodeXY
+        * @type {Array}
+        */
+        nodeXY: null,
+        /**
+        * The position of the element as it's moving (for offset calculations)
+        * @property lastXY
+        * @type {Array}
+        */
+        lastXY: null,
+        /**
+        * The xy that the node will be set to. Changing this will alter the position as it's dragged.
+        * @property actXY
+        * @type {Array}
+        */
+        actXY: null,
+        /**
+        * The real xy position of the node.
+        * @property realXY
+        * @type {Array}
+        */
+        realXY: null,
+        /**
+        * The XY coords of the mousemove
+        * @property mouseXY
+        * @type {Array}
+        */
+        mouseXY: null,
+        /**
+        * A region object associated with this drag, used for checking regions while dragging.
+        * @property region
+        * @type Object
+        */
+        region: null,
+        /**
+        * Handler for the mouseup DOM event
+        * @private
+        * @method _handleMouseUp
+        * @param {EventFacade} ev The Event
+        */
+        _handleMouseUp: function() {
+            this.fire('drag:mouseup');
+            this._fixIEMouseUp();
+            if (DDM.activeDrag) {
+                DDM._end();
+            }
+        },
+        /**
+        * The function we use as the ondragstart handler when we start a drag
+        * in Internet Explorer. This keeps IE from blowing up on images as drag handles.
+        * @private
+        * @method _fixDragStart
+        * @param {Event} e The Event
+        */
+        _fixDragStart: function(e) {
+            if (this.validClick(e)) {
+                e.preventDefault();
+            }
+        },
+        /**
+        * The function we use as the onselectstart handler when we start a drag in Internet Explorer
+        * @private
+        * @method _ieSelectFix
+        */
+        _ieSelectFix: function() {
+            return false;
+        },
+        /**
+        * We will hold a copy of the current "onselectstart" method on this property, and reset it after we are done using it.
+        * @private
+        * @property _ieSelectBack
+        */
+        _ieSelectBack: null,
+        /**
+        * This method copies the onselectstart listner on the document to the _ieSelectFix property
+        * @private
+        * @method _fixIEMouseDown
+        */
+        _fixIEMouseDown: function() {
+            if (Y.UA.ie) {
+                this._ieSelectBack = Y.config.doc.body.onselectstart;
+                Y.config.doc.body.onselectstart = this._ieSelectFix;
+            }
+        },
+        /**
+        * This method copies the _ieSelectFix property back to the onselectstart listner on the document.
+        * @private
+        * @method _fixIEMouseUp
+        */
+        _fixIEMouseUp: function() {
+            if (Y.UA.ie) {
+                Y.config.doc.body.onselectstart = this._ieSelectBack;
+            }
+        },
+        /**
+        * Handler for the mousedown DOM event
+        * @private
+        * @method _handleMouseDownEvent
+        * @param {EventFacade} ev  The Event
+        */
+        _handleMouseDownEvent: function(ev) {
+            this.fire(EV_MOUSE_DOWN, { ev: ev });
+        },
+        /**
+        * Handler for the mousedown DOM event
+        * @private
+        * @method _defMouseDownFn
+        * @param {EventFacade} e  The Event
+        */
+        _defMouseDownFn: function(e) {
+            var ev = e.ev;
+
+            this._dragThreshMet = false;
+            this._ev_md = ev;
+
+            if (this.get('primaryButtonOnly') && ev.button > 1) {
+                return false;
+            }
+            if (this.validClick(ev)) {
+                this._fixIEMouseDown(ev);
+                if (Drag.START_EVENT.indexOf('gesture') !== 0) {
+                    //Only do these if it's not a gesture
+                    if (this.get('haltDown')) {
+                        ev.halt();
+                    } else {
+                        ev.preventDefault();
+                    }
+                }
+
+                this._setStartPosition([ev.pageX, ev.pageY]);
+
+                DDM.activeDrag = this;
+
+                this._clickTimeout = Y.later(this.get('clickTimeThresh'), this, this._timeoutCheck);
+            }
+            this.fire(EV_AFTER_MOUSE_DOWN, { ev: ev });
+        },
+        /**
+        * Method first checks to see if we have handles, if so it validates the click
+        * against the handle. Then if it finds a valid handle, it checks it against
+        * the invalid handles list. Returns true if a good handle was used, false otherwise.
+        * @method validClick
+        * @param {EventFacade} ev  The Event
+        * @return {Boolean}
+        */
+        validClick: function(ev) {
+            var r = false, n = false,
+            tar = ev.target,
+            hTest = null,
+            els = null,
+            nlist = null,
+            set = false;
+            if (this._handles) {
+                Y.Object.each(this._handles, function(i, n) {
+                    if (i instanceof Y.Node || i instanceof Y.NodeList) {
+                        if (!r) {
+                            nlist = i;
+                            if (nlist instanceof Y.Node) {
+                                nlist = new Y.NodeList(i._node);
+                            }
+                            nlist.each(function(nl) {
+                                if (nl.contains(tar)) {
+                                    r = true;
+                                }
+                            });
+                        }
+                    } else if (Y.Lang.isString(n)) {
+                        //Am I this or am I inside this
+                        if (tar.test(n + ', ' + n + ' *') && !hTest) {
+                            hTest = n;
+                            r = true;
+                        }
+                    }
+                });
+            } else {
+                n = this.get(NODE);
+                if (n.contains(tar) || n.compareTo(tar)) {
+                    r = true;
+                }
+            }
+            if (r) {
+                if (this._invalids) {
+                    Y.Object.each(this._invalids, function(i, n) {
+                        if (Y.Lang.isString(n)) {
+                            //Am I this or am I inside this
+                            if (tar.test(n + ', ' + n + ' *')) {
+                                r = false;
+                            }
+                        }
+                    });
+                }
+            }
+            if (r) {
+                if (hTest) {
+                    els = ev.currentTarget.all(hTest);
+                    set = false;
+                    els.each(function(n) {
+                        if ((n.contains(tar) || n.compareTo(tar)) && !set) {
+                            set = true;
+                            this.set('activeHandle', n);
+                        }
+                    }, this);
+                } else {
+                    this.set('activeHandle', this.get(NODE));
+                }
+            }
+            return r;
+        },
+        /**
+        * Sets the current position of the Element and calculates the offset
+        * @private
+        * @method _setStartPosition
+        * @param {Array} xy The XY coords to set the position to.
+        */
+        _setStartPosition: function(xy) {
+            this.startXY = xy;
+
+            this.nodeXY = this.lastXY = this.realXY = this.get(NODE).getXY();
+
+            if (this.get('offsetNode')) {
+                this.deltaXY = [(this.startXY[0] - this.nodeXY[0]), (this.startXY[1] - this.nodeXY[1])];
+            } else {
+                this.deltaXY = [0, 0];
+            }
+        },
+        /**
+        * The method passed to setTimeout to determine if the clickTimeThreshold was met.
+        * @private
+        * @method _timeoutCheck
+        */
+        _timeoutCheck: function() {
+            if (!this.get('lock') && !this._dragThreshMet && this._ev_md) {
+                this._fromTimeout = this._dragThreshMet = true;
+                this.start();
+                this._alignNode([this._ev_md.pageX, this._ev_md.pageY], true);
+            }
+        },
+        /**
+        * Remove a Selector added by addHandle
+        * @method removeHandle
+        * @param {String} str The selector for the handle to be removed.
+        * @chainable
+        */
+        removeHandle: function(str) {
+            var key = str;
+            if (str instanceof Y.Node || str instanceof Y.NodeList) {
+                key = str._yuid;
+            }
+            if (this._handles[key]) {
+                delete this._handles[key];
+                this.fire(EV_REMOVE_HANDLE, { handle: str });
+            }
+            return this;
+        },
+        /**
+        * Add a handle to a drag element. Drag only initiates when a mousedown happens on this element.
+        * @method addHandle
+        * @param {String} str The selector to test for a valid handle. Must be a child of the element.
+        * @chainable
+        */
+        addHandle: function(str) {
+            if (!this._handles) {
+                this._handles = {};
+            }
+            var key = str;
+            if (str instanceof Y.Node || str instanceof Y.NodeList) {
+                key = str._yuid;
+            }
+            this._handles[key] = str;
+            this.fire(EV_ADD_HANDLE, { handle: str });
+            return this;
+        },
+        /**
+        * Remove an invalid handle added by addInvalid
+        * @method removeInvalid
+        * @param {String} str The invalid handle to remove from the internal list.
+        * @chainable
+        */
+        removeInvalid: function(str) {
+            if (this._invalids[str]) {
+                this._invalids[str] = null;
+                delete this._invalids[str];
+                this.fire(EV_REMOVE_INVALID, { handle: str });
+            }
+            return this;
+        },
+        /**
+        * Add a selector string to test the handle against. If the test passes the drag operation will not continue.
+        * @method addInvalid
+        * @param {String} str The selector to test against to determine if this is an invalid drag handle.
+        * @chainable
+        */
+        addInvalid: function(str) {
+            if (Y.Lang.isString(str)) {
+                this._invalids[str] = true;
+                this.fire(EV_ADD_INVALID, { handle: str });
+            }
+            return this;
+        },
+        /**
+        * Internal init handler
+        * @private
+        * @method initializer
+        */
+        initializer: function() {
+
+            this.get(NODE).dd = this;
+
+            if (!this.get(NODE).get('id')) {
+                var id = Y.stamp(this.get(NODE));
+                this.get(NODE).set('id', id);
+            }
+
+            this.actXY = [];
+
+            this._invalids = Y.clone(this._invalidsDefault, true);
+
+            this._createEvents();
+
+            if (!this.get(DRAG_NODE)) {
+                this.set(DRAG_NODE, this.get(NODE));
+            }
+
+            //Fix for #2528096
+            //Don't prep the DD instance until all plugins are loaded.
+            this.on('initializedChange', Y.bind(this._prep, this));
+
+            //Shouldn't have to do this..
+            this.set('groups', this.get('groups'));
+        },
+        /**
+        * Attach event listners and add classname
+        * @private
+        * @method _prep
+        */
+        _prep: function() {
+            this._dragThreshMet = false;
+            var node = this.get(NODE);
+            node.addClass(DDM.CSS_PREFIX + '-draggable');
+            node.on(Drag.START_EVENT, Y.bind(this._handleMouseDownEvent, this));
+            node.on('mouseup', Y.bind(this._handleMouseUp, this));
+            node.on('dragstart', Y.bind(this._fixDragStart, this));
+        },
+        /**
+        * Detach event listeners and remove classname
+        * @private
+        * @method _unprep
+        */
+        _unprep: function() {
+            var node = this.get(NODE);
+            node.removeClass(DDM.CSS_PREFIX + '-draggable');
+            node.detachAll('mouseup');
+            node.detachAll('dragstart');
+            node.detachAll(Drag.START_EVENT);
+            this.mouseXY = [];
+            this.deltaXY = [0,0];
+            this.startXY = [];
+            this.nodeXY = [];
+            this.lastXY = [];
+            this.actXY = [];
+            this.realXY = [];
+        },
+        /**
+        * Starts the drag operation
+        * @method start
+        * @chainable
+        */
+        start: function() {
+            if (!this.get('lock') && !this.get(DRAGGING)) {
+                var node = this.get(NODE), ow, oh, xy;
+                this._startTime = (new Date()).getTime();
+
+                DDM._start();
+                node.addClass(DDM.CSS_PREFIX + '-dragging');
+                this.fire(EV_START, {
+                    pageX: this.nodeXY[0],
+                    pageY: this.nodeXY[1],
+                    startTime: this._startTime
+                });
+                node = this.get(DRAG_NODE);
+                xy = this.nodeXY;
+
+                ow = node.get(OFFSET_WIDTH);
+                oh = node.get(OFFSET_HEIGHT);
+
+                if (this.get('startCentered')) {
+                    this._setStartPosition([xy[0] + (ow / 2), xy[1] + (oh / 2)]);
+                }
+
+
+                this.region = {
+                    '0': xy[0],
+                    '1': xy[1],
+                    area: 0,
+                    top: xy[1],
+                    right: xy[0] + ow,
+                    bottom: xy[1] + oh,
+                    left: xy[0]
+                };
+                this.set(DRAGGING, true);
+            }
+            return this;
+        },
+        /**
+        * Ends the drag operation
+        * @method end
+        * @chainable
+        */
+        end: function() {
+            this._endTime = (new Date()).getTime();
+            if (this._clickTimeout) {
+                this._clickTimeout.cancel();
+            }
+            this._dragThreshMet = this._fromTimeout = false;
+
+            if (!this.get('lock') && this.get(DRAGGING)) {
+                this.fire(EV_END, {
+                    pageX: this.lastXY[0],
+                    pageY: this.lastXY[1],
+                    startTime: this._startTime,
+                    endTime: this._endTime
+                });
+            }
+            this.get(NODE).removeClass(DDM.CSS_PREFIX + '-dragging');
+            this.set(DRAGGING, false);
+            this.deltaXY = [0, 0];
+
+            return this;
+        },
+        /**
+        * Handler for fixing the selection in IE
+        * @private
+        * @method _defEndFn
+        */
+        _defEndFn: function() {
+            this._fixIEMouseUp();
+            this._ev_md = null;
+        },
+        /**
+        * Handler for preventing the drag:end event. It will reset the node back to it's start position
+        * @private
+        * @method _prevEndFn
+        */
+        _prevEndFn: function() {
+            this._fixIEMouseUp();
+            //Bug #1852577
+            this.get(DRAG_NODE).setXY(this.nodeXY);
+            this._ev_md = null;
+            this.region = null;
+        },
+        /**
+        * Calculates the offsets and set's the XY that the element will move to.
+        * @private
+        * @method _align
+        * @param {Array} xy The xy coords to align with.
+        */
+        _align: function(xy) {
+            this.fire(EV_ALIGN, {pageX: xy[0], pageY: xy[1] });
+        },
+        /**
+        * Calculates the offsets and set's the XY that the element will move to.
+        * @private
+        * @method _defAlignFn
+        * @param {EventFacade} e The drag:align event.
+        */
+        _defAlignFn: function(e) {
+            this.actXY = [e.pageX - this.deltaXY[0], e.pageY - this.deltaXY[1]];
+        },
+        /**
+        * This method performs the alignment before the element move.
+        * @private
+        * @method _alignNode
+        * @param {Array} eXY The XY to move the element to, usually comes from the mousemove DOM event.
+        */
+        _alignNode: function(eXY, scroll) {
+            this._align(eXY);
+            if (!scroll) {
+                this._moveNode();
+            }
+        },
+        /**
+        * This method performs the actual element move.
+        * @private
+        * @method _moveNode
+        */
+        _moveNode: function(scroll) {
+            //if (!this.get(DRAGGING)) {
+            //    return;
+            //}
+            var diffXY = [], diffXY2 = [], startXY = this.nodeXY, xy = this.actXY;
+
+            diffXY[0] = (xy[0] - this.lastXY[0]);
+            diffXY[1] = (xy[1] - this.lastXY[1]);
+
+            diffXY2[0] = (xy[0] - this.nodeXY[0]);
+            diffXY2[1] = (xy[1] - this.nodeXY[1]);
+
+
+            this.region = {
+                '0': xy[0],
+                '1': xy[1],
+                area: 0,
+                top: xy[1],
+                right: xy[0] + this.get(DRAG_NODE).get(OFFSET_WIDTH),
+                bottom: xy[1] + this.get(DRAG_NODE).get(OFFSET_HEIGHT),
+                left: xy[0]
+            };
+
+            this.fire(EV_DRAG, {
+                pageX: xy[0],
+                pageY: xy[1],
+                scroll: scroll,
+                info: {
+                    start: startXY,
+                    xy: xy,
+                    delta: diffXY,
+                    offset: diffXY2
+                }
+            });
+
+            this.lastXY = xy;
+        },
+        /**
+        * Default function for drag:drag. Fired from _moveNode.
+        * @private
+        * @method _defDragFn
+        * @param {EventFacade} ev The drag:drag event
+        */
+        _defDragFn: function(e) {
+            if (this.get('move')) {
+                if (e.scroll && e.scroll.node) {
+                    var domNode = e.scroll.node.getDOMNode();
+                    //If it's the window
+                    if (domNode === Y.config.win) {
+                        domNode.scrollTo(e.scroll.left, e.scroll.top);
+                    } else {
+                        e.scroll.node.set('scrollTop', e.scroll.top);
+                        e.scroll.node.set('scrollLeft', e.scroll.left);
+                    }
+                }
+                this.get(DRAG_NODE).setXY([e.pageX, e.pageY]);
+                this.realXY = [e.pageX, e.pageY];
+            }
+        },
+        /**
+        * Fired from DragDropMgr (DDM) on mousemove.
+        * @private
+        * @method _move
+        * @param {EventFacade} ev The mousemove DOM event
+        */
+        _move: function(ev) {
+            if (this.get('lock')) {
+                return false;
+            }
+
+            this.mouseXY = [ev.pageX, ev.pageY];
+            if (!this._dragThreshMet) {
+                var diffX = Math.abs(this.startXY[0] - ev.pageX),
+                diffY = Math.abs(this.startXY[1] - ev.pageY);
+                if (diffX > this.get('clickPixelThresh') || diffY > this.get('clickPixelThresh')) {
+                    this._dragThreshMet = true;
+                    this.start();
+                    //This only happens on gestures to stop the page from scrolling
+                    if (ev && ev.preventDefault) {
+                        ev.preventDefault();
+                    }
+                    this._alignNode([ev.pageX, ev.pageY]);
+                }
+            } else {
+                if (this._clickTimeout) {
+                    this._clickTimeout.cancel();
+                }
+                this._alignNode([ev.pageX, ev.pageY]);
+            }
+        },
+        /**
+        * Method will forcefully stop a drag operation. For example calling this from inside an ESC keypress handler will stop this drag.
+        * @method stopDrag
+        * @chainable
+        */
+        stopDrag: function() {
+            if (this.get(DRAGGING)) {
+                DDM._end();
+            }
+            return this;
+        },
+        /**
+        * Lifecycle destructor, unreg the drag from the DDM and remove listeners
+        * @private
+        * @method destructor
+        */
+        destructor: function() {
+            this._unprep();
+            if (this.target) {
+                this.target.destroy();
+            }
+            DDM._unregDrag(this);
+        }
+    });
+    Y.namespace('DD');
+    Y.DD.Drag = Drag;
+
+
+
+
+}, '@VERSION@', {"requires": ["dd-ddm-base"]});