org.eclipse.swt.dnd.DNDListener Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.dnd;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.widgets.*;
class DNDListener extends TypedListener {
Widget dndWidget;
/**
* DNDListener constructor comment.
* @param listener org.eclipse.swt.internal.SWTEventListener
*/
DNDListener(SWTEventListener listener) {
super(listener);
}
public void handleEvent (Event e) {
switch (e.type) {
case DND.DragStart: {
DragSourceEvent event = new DragSourceEvent((DNDEvent)e);
DragSourceEffect sourceEffect = ((DragSource) dndWidget).getDragSourceEffect();
if (sourceEffect != null) {
sourceEffect.dragStart (event);
}
((DragSourceListener) eventListener).dragStart (event);
event.updateEvent((DNDEvent)e);
break;
}
case DND.DragEnd: {
DragSourceEvent event = new DragSourceEvent((DNDEvent)e);
DragSourceEffect sourceEffect = ((DragSource) dndWidget).getDragSourceEffect();
if (sourceEffect != null) {
sourceEffect.dragFinished (event);
}
((DragSourceListener) eventListener).dragFinished (event);
event.updateEvent((DNDEvent)e);
break;
}
case DND.DragSetData: {
DragSourceEvent event = new DragSourceEvent((DNDEvent)e);
DragSourceEffect sourceEffect = ((DragSource) dndWidget).getDragSourceEffect();
if (sourceEffect != null) {
sourceEffect.dragSetData (event);
}
((DragSourceListener) eventListener).dragSetData (event);
event.updateEvent((DNDEvent)e);
break;
}
case DND.DragEnter: {
DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
((DropTargetListener) eventListener).dragEnter (event);
DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
if (dropEffect != null) {
dropEffect.dragEnter (event);
}
event.updateEvent((DNDEvent)e);
break;
}
case DND.DragLeave: {
DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
((DropTargetListener) eventListener).dragLeave (event);
DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
if (dropEffect != null) {
dropEffect.dragLeave (event);
}
event.updateEvent((DNDEvent)e);
break;
}
case DND.DragOver: {
DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
((DropTargetListener) eventListener).dragOver (event);
DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
if (dropEffect != null) {
dropEffect.dragOver (event);
}
event.updateEvent((DNDEvent)e);
break;
}
case DND.Drop: {
DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
((DropTargetListener) eventListener).drop (event);
DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
if (dropEffect != null) {
dropEffect.drop (event);
}
event.updateEvent((DNDEvent)e);
break;
}
case DND.DropAccept: {
DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
((DropTargetListener) eventListener).dropAccept (event);
DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
if (dropEffect != null) {
dropEffect.dropAccept (event);
}
event.updateEvent((DNDEvent)e);
break;
}
case DND.DragOperationChanged: {
DropTargetEvent event = new DropTargetEvent((DNDEvent)e);
((DropTargetListener) eventListener).dragOperationChanged (event);
DropTargetEffect dropEffect = ((DropTarget) dndWidget).getDropTargetEffect();
if (dropEffect != null) {
dropEffect.dragOperationChanged (event);
}
event.updateEvent((DNDEvent)e);
break;
}
}
}
}