case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/callhierarchy/LocationCopyAction.java

   1 /*******************************************************************************
   2  * Copyright (c) 2006, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.ui.callhierarchy;
  12
  13 import java.util.Iterator;
  14
  15 import org.eclipse.swt.SWTError;
  16 import org.eclipse.swt.dnd.Clipboard;
  17 import org.eclipse.swt.dnd.DND;
  18 import org.eclipse.swt.dnd.TextTransfer;
  19 import org.eclipse.swt.dnd.Transfer;
  20 import org.eclipse.swt.events.FocusEvent;
  21 import org.eclipse.swt.events.FocusListener;
  22
  23 import org.eclipse.jface.action.Action;
  24 import org.eclipse.jface.action.IAction;
  25 import org.eclipse.jface.dialogs.MessageDialog;
  26 import org.eclipse.jface.viewers.ISelectionChangedListener;
  27 import org.eclipse.jface.viewers.IStructuredSelection;
  28 import org.eclipse.jface.viewers.SelectionChangedEvent;
  29
  30 import org.eclipse.ui.IActionBars;
  31 import org.eclipse.ui.IViewSite;
  32 import org.eclipse.ui.IWorkbenchCommandConstants;
  33 import org.eclipse.ui.actions.ActionFactory;
  34
  35 import org.eclipse.jdt.internal.corext.callhierarchy.CallLocation;
  36
  37 /**
  38  * Copies the selection from the location viewer.
  39  */
  40 class LocationCopyAction extends Action {
  41         private final Clipboard fClipboard;
  42         private final IViewSite fViewSite;
  43         private final LocationViewer fLocationViewer;
  44
  45         LocationCopyAction(IViewSite viewSite, Clipboard clipboard, LocationViewer locationViewer) {
  46                 fClipboard= clipboard;
  47                 fViewSite= viewSite;
  48                 fLocationViewer= locationViewer;
  49
  50                 setText(CallHierarchyMessages.LocationCopyAction_copy);
  51                 setActionDefinitionId(IWorkbenchCommandConstants.EDIT_COPY);
  52                 setEnabled(!fLocationViewer.getSelection().isEmpty());
  53
  54                 locationViewer.addSelectionChangedListener(new ISelectionChangedListener() {
  55                         public void selectionChanged(SelectionChangedEvent event) {
  56                                 setEnabled(! event.getSelection().isEmpty());
  57                         }
  58                 });
  59         }
  60
  61         @Override
  62         public void run() {
  63                 IStructuredSelection selection= (IStructuredSelection) fLocationViewer.getSelection();
  64                 StringBuffer buf= new StringBuffer();
  65                 for (Iterator<?> iterator= selection.iterator(); iterator.hasNext();) {
  66                         CallLocation location= (CallLocation) iterator.next();
  67                         location.generated_8112817452066259871(buf);
  68                 }
  69                 TextTransfer plainTextTransfer = TextTransfer.getInstance();
  70                 try {
  71                         fClipboard.setContents(
  72                                         new String[]{ CopyCallHierarchyAction.convertLineTerminators(buf.toString()) },
  73                                         new Transfer[]{ plainTextTransfer });
  74                 } catch (SWTError e){
  75                         if (e.code != DND.ERROR_CANNOT_SET_CLIPBOARD)
  76                                 throw e;
  77                         if (MessageDialog.openQuestion(fViewSite.getShell(), CallHierarchyMessages.CopyCallHierarchyAction_problem, CallHierarchyMessages.CopyCallHierarchyAction_clipboard_busy))
  78                                 run();
  79                 }
  80         }
  81
  82         public LocationCopyAction generated_4757668500795591348(final IViewSite viewSite, LocationViewer locationviewer) {
  83                 locationviewer.getTable().addFocusListener(new FocusListener() {
  84                 IAction fViewCopyHandler;
  85                         public void focusLost(FocusEvent e) {
  86                                 if (fViewCopyHandler != null) {
  87                                         IActionBars actionBars= viewSite.getActionBars();
  88                                         actionBars.setGlobalActionHandler(ActionFactory.COPY.getId(), fViewCopyHandler);
  89                                         actionBars.updateActionBars();
  90                                         fViewCopyHandler= null;
  91                                 }
  92                         }
  93
  94                         public void focusGained(FocusEvent e) {
  95                                 IActionBars actionBars= viewSite.getActionBars();
  96                                 fViewCopyHandler= actionBars.getGlobalActionHandler(ActionFactory.COPY.getId());
  97                                 actionBars.setGlobalActionHandler(ActionFactory.COPY.getId(), LocationCopyAction.this);
  98                                 actionBars.updateActionBars();
  99                         }
 100                 });
 101
 102             return this;
 103         }
 104 }