Removed UI.

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / ui / dnd / DelegatingDragAdapter.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/DelegatingDragAdapter.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/DelegatingDragAdapter.java
deleted file mode 100644 (file)
index 74ace1c..0000000
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dnd/DelegatingDragAdapter.java
+++ /dev/null
@@ -1,115 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2003 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials 
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- * 
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package net.sourceforge.phpdt.internal.ui.dnd;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-import org.eclipse.swt.dnd.DragSource;
-import org.eclipse.swt.dnd.DragSourceEvent;
-import org.eclipse.swt.dnd.DragSourceListener;
-import org.eclipse.swt.dnd.Transfer;
-import org.eclipse.swt.dnd.TransferData;
-
-import org.eclipse.jface.util.Assert;
-
-/**
- * A delegating drag adapter negotiates between a set of <code>TransferDragSourceListener</code>s
- * On <code>dragStart</code> the adapter determines the listener to be used for any further
- * <code>drag*</code> callback.
- */
-public class DelegatingDragAdapter implements DragSourceListener {
-
-       private TransferDragSourceListener[] fPossibleListeners;
-       private List fActiveListeners;
-       private TransferDragSourceListener fFinishListener;
-       
-       public DelegatingDragAdapter(TransferDragSourceListener[] listeners) {
-               setPossibleListeners(listeners);
-       }
-       
-       protected void setPossibleListeners(TransferDragSourceListener[] listeners) {
-               Assert.isNotNull(listeners);
-               Assert.isTrue(fActiveListeners == null, "Can only set possible listeners before drag operation has started"); //$NON-NLS-1$
-               fPossibleListeners= listeners;
-       }
-       
-       /* non Java-doc
-        * @see DragSourceListener
-        */
-       public void dragStart(DragSourceEvent event) {
-               fFinishListener= null;
-               boolean saveDoit= event.doit;
-               Object saveData= event.data;
-               boolean doIt= false;
-               List transfers= new ArrayList(fPossibleListeners.length);
-               fActiveListeners= new ArrayList(fPossibleListeners.length);
-               
-               for (int i= 0; i < fPossibleListeners.length; i++) {
-                       TransferDragSourceListener listener= fPossibleListeners[i];
-                       event.doit= saveDoit;
-                       listener.dragStart(event);
-                       if (event.doit) {
-                               transfers.add(listener.getTransfer());
-                               fActiveListeners.add(listener);
-                       }
-                       doIt= doIt || event.doit;
-               }
-               if (doIt) {
-                       ((DragSource)event.widget).setTransfer((Transfer[])transfers.toArray(new Transfer[transfers.size()]));
-               }
-               event.data= saveData;
-               event.doit= doIt;
-       }
-
-       /* non Java-doc
-        * @see DragSourceListener
-        */
-       public void dragSetData(DragSourceEvent event) {
-               fFinishListener= getListener(event.dataType);
-               if (fFinishListener != null)
-                       fFinishListener.dragSetData(event);
-       }
-       
-       /* non Java-doc
-        * @see DragSourceListener
-        */
-       public void dragFinished(DragSourceEvent event) {
-               try{
-                       if (fFinishListener != null) {
-                               fFinishListener.dragFinished(event);
-                       } else {
-                               // If the user presses Escape then we get a dragFinished without
-                               // getting a dragSetData before.
-                               fFinishListener= getListener(event.dataType);
-                               if (fFinishListener != null)
-                                       fFinishListener.dragFinished(event);
-                       }
-               } finally{
-                       fFinishListener= null;
-                       fActiveListeners= null;
-               }       
-       }
-       
-       private TransferDragSourceListener getListener(TransferData type) {
-               if (type == null)
-                       return null;
-                       
-               for (Iterator iter= fActiveListeners.iterator(); iter.hasNext();) {
-                       TransferDragSourceListener listener= (TransferDragSourceListener)iter.next();
-                       if (listener.getTransfer().isSupportedType(type)) {
-                               return listener;
-                       }
-               }
-               return null;
-       }       
-}