Package org.opencms.gwt.client.dnd

Class CmsCompositeDNDController

java.lang.Object

org.opencms.gwt.client.dnd.CmsCompositeDNDController

All Implemented Interfaces:

I_CmsDNDController

public class CmsCompositeDNDController
extends java.lang.Object
implements I_CmsDNDController

A DND controller which forwards method calls to multiple other DND controllers.

Constructor Summary

Constructors

Constructor	Description
CmsCompositeDNDController()

Method Summary

Modifier and Type	Method	Description
com.google.web.bindery.event.shared.HandlerRegistration	addController(I_CmsDNDController controller)	Adds another sub-controller to this controller.
void	onAnimationStart(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed when end animation starts.
boolean	onBeforeDrop(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed before drop.
void	onDragCancel(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed on drag cancel.
boolean	onDragStart(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed on drag start.
void	onDrop(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed on drop.
void	onPositionedPlaceholder(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed after the placeholder has been positioned inside a drop target.
boolean	onTargetEnter(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed when the helper is dragged into a drop target.
void	onTargetLeave(I_CmsDraggable draggable, I_CmsDropTarget target, CmsDNDHandler handler)	Executed when the helper is dragged out of a drop target.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CmsCompositeDNDController

public CmsCompositeDNDController()

Method Detail

addController

public com.google.web.bindery.event.shared.HandlerRegistration addController(I_CmsDNDController controller)

Adds another sub-controller to this controller.

Parameters:

controller - the controller to add

Returns:

a registration object to remove the controller later

onAnimationStart

public void onAnimationStart(I_CmsDraggable draggable,
                             I_CmsDropTarget target,
                             CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed when end animation starts.

Specified by:

onAnimationStart in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

See Also:

I_CmsDNDController.onAnimationStart(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onBeforeDrop

public boolean onBeforeDrop(I_CmsDraggable draggable,
                            I_CmsDropTarget target,
                            CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed before drop.

Specified by:

onBeforeDrop in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

Returns:

false to cancel dropping

See Also:

I_CmsDNDController.onBeforeDrop(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onDragCancel

public void onDragCancel(I_CmsDraggable draggable,
                         I_CmsDropTarget target,
                         CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed on drag cancel.

Specified by:

onDragCancel in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

See Also:

I_CmsDNDController.onDragCancel(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onDragStart

public boolean onDragStart(I_CmsDraggable draggable,
                           I_CmsDropTarget target,
                           CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed on drag start.

Specified by:

onDragStart in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

Returns:

false to cancel dragging

See Also:

I_CmsDNDController.onDragStart(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onDrop

public void onDrop(I_CmsDraggable draggable,
                   I_CmsDropTarget target,
                   CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed on drop.

Specified by:

onDrop in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

See Also:

I_CmsDNDController.onDrop(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onPositionedPlaceholder

public void onPositionedPlaceholder(I_CmsDraggable draggable,
                                    I_CmsDropTarget target,
                                    CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed after the placeholder has been positioned inside a drop target.

Specified by:

onPositionedPlaceholder in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

See Also:

I_CmsDNDController.onPositionedPlaceholder(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onTargetEnter

public boolean onTargetEnter(I_CmsDraggable draggable,
                             I_CmsDropTarget target,
                             CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed when the helper is dragged into a drop target.

Specified by:

onTargetEnter in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

Returns:

false to cancel entering target (placeholder will not positioned inside target)

See Also:

I_CmsDNDController.onTargetEnter(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)

onTargetLeave

public void onTargetLeave(I_CmsDraggable draggable,
                          I_CmsDropTarget target,
                          CmsDNDHandler handler)

Description copied from interface: I_CmsDNDController

Executed when the helper is dragged out of a drop target.

Specified by:

onTargetLeave in interface I_CmsDNDController

Parameters:

draggable - the draggable item

target - the current drop target

handler - the drag and drop handler instance

See Also:

I_CmsDNDController.onTargetLeave(org.opencms.gwt.client.dnd.I_CmsDraggable, org.opencms.gwt.client.dnd.I_CmsDropTarget, org.opencms.gwt.client.dnd.CmsDNDHandler)