| /******************************************************************************* |
| * Copyright (c) 2005 The Regents of the University of California. |
| * This material was produced under U.S. Government contract W-7405-ENG-36 |
| * for Los Alamos National Laboratory, which is operated by the University |
| * of California for the U.S. Department of Energy. The U.S. Government has |
| * rights to use, reproduce, and distribute this software. NEITHER THE |
| * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR |
| * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified |
| * to produce derivative works, such modified software should be clearly marked, |
| * so as not to confuse it with the version available from LANL. |
| * |
| * Additionally, 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 |
| * |
| * LA-CC 04-115 |
| *******************************************************************************/ |
| package org.eclipse.ptp.debug.internal.ui.actions; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.MultiStatus; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ptp.debug.core.model.IEnableDisableTarget; |
| import org.eclipse.ptp.debug.ui.PTPDebugUIPlugin; |
| import org.eclipse.swt.custom.BusyIndicator; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.IViewActionDelegate; |
| import org.eclipse.ui.IViewPart; |
| |
| /** |
| * @author Clement chu |
| */ |
| public class EnableVariablesActionDelegate implements IViewActionDelegate { |
| private IViewPart fView; |
| |
| private IAction fAction; |
| |
| public EnableVariablesActionDelegate() { |
| } |
| |
| protected IViewPart getView() { |
| return fView; |
| } |
| |
| protected void setView(IViewPart view) { |
| fView = view; |
| } |
| |
| protected IAction getAction() { |
| return fAction; |
| } |
| |
| protected void setAction(IAction action) { |
| fAction = action; |
| } |
| |
| /** |
| * This action enables variables. |
| */ |
| protected boolean isEnableAction() { |
| return true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart) |
| */ |
| public void init(IViewPart view) { |
| setView(view); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| IStructuredSelection selection = getSelection(); |
| final int size = selection.size(); |
| if (size == 0) |
| return; |
| final Iterator<?> it = selection.iterator(); |
| final MultiStatus ms = new MultiStatus(PTPDebugUIPlugin.getUniqueIdentifier(), DebugException.REQUEST_FAILED, ActionMessages.getString("EnableVariablesActionDelegate.0"), null); |
| BusyIndicator.showWhile(Display.getCurrent(), new Runnable() { |
| public void run() { |
| while(it.hasNext()) { |
| IEnableDisableTarget target = getEnableDisableTarget(it.next()); |
| if (target != null) { |
| try { |
| if (size > 1) { |
| target.setEnabled(isEnableAction()); |
| } |
| else |
| target.setEnabled(!target.isEnabled()); |
| } |
| catch(DebugException e) { |
| ms.merge(e.getStatus()); |
| } |
| } |
| } |
| update(); |
| } |
| }); |
| if (!ms.isOK()) { |
| PTPDebugUIPlugin.errorDialog(ActionMessages.getString("EnableVariablesActionDelegate.1"), ms); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| setAction(action); |
| if (!(selection instanceof IStructuredSelection)) |
| return; |
| IStructuredSelection sel = (IStructuredSelection)selection; |
| Object o = sel.getFirstElement(); |
| if (getEnableDisableTarget(o) == null) |
| return; |
| Iterator<?> it = sel.iterator(); |
| boolean allEnabled = true; |
| boolean allDisabled = true; |
| while(it.hasNext()) { |
| IEnableDisableTarget target = getEnableDisableTarget(it.next()); |
| if (target != null && !target.canEnableDisable()) |
| continue; |
| if (target.isEnabled()) |
| allDisabled = false; |
| else |
| allEnabled = false; |
| } |
| if (isEnableAction()) |
| action.setEnabled(!allEnabled); |
| else |
| action.setEnabled(!allDisabled); |
| } |
| |
| private IStructuredSelection getSelection() { |
| return (IStructuredSelection)getView().getViewSite().getSelectionProvider().getSelection(); |
| } |
| |
| protected void update() { |
| getView().getViewSite().getSelectionProvider().setSelection(getView().getViewSite().getSelectionProvider().getSelection()); |
| } |
| |
| protected IEnableDisableTarget getEnableDisableTarget(Object obj) { |
| IEnableDisableTarget target = null; |
| if (obj instanceof IAdaptable) { |
| target = (IEnableDisableTarget)((IAdaptable)obj).getAdapter(IEnableDisableTarget.class); |
| } |
| return target; |
| } |
| } |