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java.lang.Objectcom.vaadin.terminal.gwt.client.ui.dd.VAbstractDropHandler
com.vaadin.terminal.gwt.client.ui.VScrollTable.VScrollTableDropHandler
public class VScrollTable.VScrollTableDropHandler
| Constructor Summary | |
|---|---|
VScrollTable.VScrollTableDropHandler()
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| Method Summary | |
|---|---|
protected void |
dragAccepted(VDragEvent drag)
This method is called when a valid drop location was found with AcceptCriterion either via client or server side check. |
void |
dragEnter(VDragEvent drag)
The default implementation in VAbstractDropHandler checks if the
Transferable is accepted. |
void |
dragLeave(VDragEvent drag)
Default implementation does nothing. |
void |
dragOver(VDragEvent drag)
Default implementation does nothing. |
boolean |
drop(VDragEvent drag)
The default implemmentation visits server if AcceptCriterion
can't be verified on client or if AcceptCriterion are met on
client. |
ApplicationConnection |
getApplicationConnection()
Returns the application connection to which this VDropHandler
belongs to. |
Paintable |
getPaintable()
Returns the Paintable who owns this VAbstractDropHandler. |
| Methods inherited from class com.vaadin.terminal.gwt.client.ui.dd.VAbstractDropHandler |
|---|
updateAcceptRules, validate |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public VScrollTable.VScrollTableDropHandler()
| Method Detail |
|---|
public void dragEnter(VDragEvent drag)
VAbstractDropHandlerVAbstractDropHandler checks if the
Transferable is accepted.
If transferable is accepted (either via server visit or client side
rules) the default implementation calls abstract
VAbstractDropHandler.dragAccepted(VDragEvent) method.
If drop handler has distinct places where some parts may accept the
Transferable and others don't, one should use similar validation
logic in dragOver method and replace this method with empty
implementation.
dragEnter in interface VDropHandlerdragEnter in class VAbstractDropHandlerdrag - DragEvent which contains the transferable and other
information for the operationpublic void dragOver(VDragEvent drag)
VAbstractDropHandler
dragOver in interface VDropHandlerdragOver in class VAbstractDropHandlerpublic void dragLeave(VDragEvent drag)
VAbstractDropHandler
dragLeave in interface VDropHandlerdragLeave in class VAbstractDropHandlerdrag - DragEvent which contains the transferable and other
information for the operationpublic boolean drop(VDragEvent drag)
VAbstractDropHandlerAcceptCriterion
can't be verified on client or if AcceptCriterion are met on
client.
drop in interface VDropHandlerdrop in class VAbstractDropHandlerprotected void dragAccepted(VDragEvent drag)
VAbstractDropHandlerAcceptCriterion either via client or server side check.
Implementations can set some hints for users here to highlight that the drag is on a valid drop location.
dragAccepted in class VAbstractDropHandlerpublic Paintable getPaintable()
VAbstractDropHandlerVAbstractDropHandler. Server
side counterpart of the Paintable is expected to implement
DropTarget interface.
getPaintable in interface VDropHandlergetPaintable in class VAbstractDropHandlerpublic ApplicationConnection getApplicationConnection()
VDropHandlerVDropHandler
belongs to. DragAndDropManager uses this fucction to send Transferable to
server side.
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