JavaScript API Reference for Oracle ADF Faces

oracle.adfinternal.view.js.dnd
Class AdfStampedDragSource

org.ecmascript.object.Object
   |
   +--oracle.adf.view.js.base.AdfObject
         |
         +--oracle.adf.view.js.dnd.AdfDragSource
               |
               +--oracle.adfinternal.view.js.dnd.AdfStampedDragSource

Direct Known Subclasses:

AdfTableDragSource

public class AdfStampedDragSource
extends AdfDragSource

_modelName

private Object _modelName

AdfStampedDragSource

public AdfStampedDragSource(Number allowedActions,
                            Object defaultAction,
                            String modelName)

Abstract AdfDragSource, supporting drags from stamped components

Parameters:

allowedActions	-	that can be performed by this drag source
defaultAction
modelName	-	used to identify this dropTarget

applyDragReadyState

public Object applyDragReadyState(Object inputEvent)

Called by the framework when the drag is ready to be initiated. This method should display a change in the UI to indicate to the user that it is now possible to initiate a drag operation on the target of the event. This method is used in instances where a gesture must be executed before an item may be dragged.

Parameters:

inputEvent

Return:

Object

Overrides:

AdfDragSource.applyDragReadyState(AdfUIInputEvent)

ApplyDragReadyStateForRowKeys

protected Array ApplyDragReadyStateForRowKeys(AdfUIInputEvent inputEvent,
                                              Array rowKeys)

Given an array of rowKeys, return the DOM elements that are ready for dragging.

Parameters:

inputEvent	-	the event that started the dragging.
rowKeys	-	array of row keys

Return:

Array - An array of DOMElements to have the drag-ready style applied to them.

applyDragSourceState

public Object applyDragSourceState(Object inputEvent)

Called by the framework when a drag has been initiated on the drag source. This method should display a change in the UI to indicate to the user what node is being dragged.

Parameters:

inputEvent

Return:

Object

Overrides:

AdfDragSource.applyDragSourceState(AdfDomUIInputEvent)

ApplyDragSourceStateForRowKeys

protected Array ApplyDragSourceStateForRowKeys(AdfUIInputEvent inputEvent,
                                               Array rowKeys)

Given an array of rowKeys, return the DOM elements that are being dragged.

Parameters:

inputEvent	-	the event that started the dragging.
rowKeys	-	array of row keys

Return:

Array - An array of DOMElements to have the drag-source style applied to them.

AreDraggedRowKeysAvailable

protected Object AreDraggedRowKeysAvailable(Object inputEvent)

Returns true if a drag started at the location of the inputEvent will result in a drag transferable containing the rowkey DataFlavor. The default implementation returns true if this.GetDraggedRowKeys() returns a non-null value for this inputEvent. Subclasses can override this behavior to be more efficient.

Parameters:

inputEvent

Return:

Object

GetDraggedRowKeys

protected Object GetDraggedRowKeys(Object mouseRowKey)

Given the rowKey under the mouse, return the set of rowKeys to drag. Subclasses typically override this method to check whether the mouseRowKey is in the selection. If it is, then the entire selection is dragged, otherwise the on the mouseRowKey is dragged.

Parameters:

mouseRowKey

Return:

Object

GetDragOffset

protected Object GetDragOffset(Object inputEvent)

Overriden to return the offset of the dragged object within the stamp, instead of the component, if the drag happens on a stamp. Subclassers can override the offset of the dragged object AdfStampedDragSource.GetDragOffsetForRowKeys

Parameters:

inputEvent

Return:

Object

Overrides:

AdfDragSource.GetDragOffset(Object)

GetDragOffsetForRowKeys

protected Object GetDragOffsetForRowKeys(AdfUIInputEvent inputEvent,
                                         Array rowKeys)

Given an array of rowKeys, and the inputEvent for drag returns the offset within the drag object. The default implementation defers to the Peer for this information.

Parameters:

inputEvent
rowKeys	-	the array of rowKeys

Return:

Object - point with x and y coordinates

GetDragOverFeedback

protected Object GetDragOverFeedback(Object inputEvent)

Override to return feedback for the dragged rowKeys. Subclassers can override the actual dragged icon by overriding AdfStampedAdfDragSource.GetDragOverFeedbackForRowKeys

Parameters:

inputEvent

Return:

Object

Overrides:

AdfDragSource.GetDragOverFeedback(AdfUIInputEvent)

GetDragOverFeedbackForRowKeys

protected Object GetDragOverFeedbackForRowKeys(Object rowKeys)

Given an array of rowKeys, return the DOM Node to use for the drag-over feedback, if any. The default implementation defers to the Peer for this information.

Parameters:

rowKeys

Return:

Object

GetDragTransferable

protected Object GetDragTransferable(Object inputEvent)

Return a transferable matching the modelName for this drag source.

Parameters:

inputEvent

Return:

Object

Overrides:

AdfDragSource.GetDragTransferable(AdfUIInputEvent)

getModelName

public String getModelName()

Returns model name used to identify this drag source.

Return:

String - model name used to identify this drag source

getRowKeyDataFlavor

public Object getRowKeyDataFlavor()

Return:

Object

_getRowKeys

private Object _getRowKeys(Object inputEvent)

Returns the RowKeys to use for this inputEvent

Parameters:

inputEvent

Return:

Object

Init

protected Object Init(Object allowedActions,
                      Object defaultAction,
                      Object modelName)

Initializes the instance. Subclasses of AdfObject must call their superclass' Init

Parameters:

allowedActions
defaultAction
modelName

Return:

Object

Overrides:

AdfObject.Init()

isAvailable

public Object isAvailable(Object dndContext,
                          Object inputEvent)

Returns true if a AdfDragSource is available at this location

Parameters:

dndContext
inputEvent

Return:

Object

Overrides:

AdfDragSource.isAvailable(Object)