Ext.dd.DDTarget

Configuration attributes passed into the constructor

Provides default constraint padding to "constrainTo" elements (defaults to {left: 0, right:0, top:0, bottom:0}).

The group defines a logical collection of DragDrop objects that are related. Instances only get events when interacting with other DragDrop object in the same group. This lets us define multiple groups using a single DragDrop subclass if we want.

By default, drags can only be initiated if the mousedown occurs in the region the linked element is. This is done in part to work around a bug in some browsers that mis-report the mousedown if the previous mouseup happened outside of the window. This property is set to true if outer handles are defined.

The id of the element associated with this object. This is what we refer to as the "linked element" because the size and position of this element is used to determine when the drag and drop objects have interacted.

Set to false to enable a DragDrop object to fire drag events while dragging over its own Element. Defaults to true - DragDrop objects do not by default fire drag events to themselves.

An Array of CSS class names for elements to be considered in valid as drag handles.

An object who's property names identify the IDs of elements to be considered invalid as drag handles. A non-null property value identifies the ID as invalid. For example, to prevent dragging from being initiated on element ID "foo", use:

{
    foo: true
}

An object who's property names identify HTML tags to be considered invalid as drag handles. A non-null property value identifies the tag as invalid. Defaults to the following value which prevents drag operations from being initiated by <a> elements:

{
    A: "A"
}

By default, all instances can be a drop target. This can be disabled by setting isTarget to false.

Maintain offsets when we resetconstraints. Set to true when you want the position of the element relative to its parent to stay the same when the page changes

When set to true, other DD objects in cooperating DDGroups do not receive notification events when this DD object is dragged over them. Defaults to false.

The padding configured for this drag and drop object for calculating the drop zone intersection with this object.

By default the drag and drop instance will only respond to the primary button click (left button for a right-handed mouse). Set to true to allow drag and drop to start with any mouse click that is propogated by the browser

Array of pixel locations the element will snap to if we specified a horizontal graduation/interval. This array is generated automatically when you define a tick interval.

Array of pixel locations the element will snap to if we specified a vertical graduation/interval. This array is generated automatically when you define a tick interval.

Applies the configuration parameters that were passed into the constructor. This is supposed to happen at each level through the inheritance chain. So a DDProxy implentation will execute apply config on DDProxy, DD, and DragDrop in order to get all of the parameters that are available in each object.

Initializes the drag drop object's constraints to restrict movement to a certain element. Usage:

var dd = new Ext.dd.DDProxy("dragDiv1", "proxytest",
                { dragElId: "existingProxyDiv" });
 dd.startDrag = function(){
     this.constrainTo("parent-id");
 };

Or you can initalize it using the Ext.core.Element object:

Ext.get("dragDiv1").initDDProxy("proxytest", {dragElId: "existingProxyDiv"}, {
     startDrag : function(){
         this.constrainTo("parent-id");
     }
 });

Parameters

• constrainTo : Mixed
  The element to constrain to.
• pad : Object/Number
  (optional) Pad provides a way to specify "padding" of the constraints, and can be either a number for symmetrical padding (4 would be equal to {left:4, right:4, top:4, bottom:4}) or an object containing the sides to pad. For example: {right:10, bottom:10}
• inContent : Boolean
  (optional) Constrain the draggable in the content box of the element (inside padding and borders)

Returns

• Void

Returns a reference to the linked element

Sets up the DragDrop object. Must be called in the constructor of any Ext.dd.DragDrop subclass

Parameters

• the : id
  id of the linked element
• sGroup : String
  the group of related items
• config : object
  configuration attributes

Returns

• Void

Initializes Targeting functionality only... the object does not get a mousedown handler.

Parameters

• the : id
  id of the linked element
• sGroup : String
  the group of related items
• config : object
  configuration attributes

Returns

• Void

Returns true if this instance is locked, or the drag drop mgr is locked (meaning that all drag/drop is disabled on the page.)

Lock this instance

Override the onAvailable method to do what is needed after the initial position was determined.

Remove's this instance from the supplied interaction group

Parameters

• sGroup : string
  The group to drop

Returns

• Void

Configures the padding for the target zone in px. Effectively expands (or reduces) the virtual object size for targeting calculations. Supports css-style shorthand; if only one parameter is passed, all sides will have that padding, and if only two are passed, the top and bottom will have the first param, the left and right the second.

Parameters

• iTop : int
  Top pad
• iRight : int
  Right pad
• iBot : int
  Bot pad
• iLeft : int
  Left pad

Returns

• Void

toString method

Unlock this instace

Remove all drag and drop hooks for this element