| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.debug.internal.ui.actions.breakpoints; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.model.IWatchpoint; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.internal.ui.actions.ActionMessages; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.ui.IActionDelegate2; |
| import org.eclipse.ui.IObjectActionDelegate; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| /** |
| * Action that modifies a watchpoint's access/modification attributes |
| */ |
| public abstract class ModifyWatchpointAction implements IObjectActionDelegate, IActionDelegate2 { |
| |
| private IStructuredSelection fWatchpoints = null; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| try { |
| if (fWatchpoints != null) { |
| Iterator iterator = fWatchpoints.iterator(); |
| while (iterator.hasNext()) { |
| IWatchpoint watchpoint = (IWatchpoint)iterator.next(); |
| toggleWatchpoint(watchpoint, action.isChecked()); |
| } |
| } |
| } catch (CoreException e) { |
| DebugUIPlugin.errorDialog(DebugUIPlugin.getShell(), ActionMessages.ModifyWatchpointAction_0, ActionMessages.ModifyWatchpointAction_1, e.getStatus()); // |
| } |
| |
| } |
| |
| /** |
| * Toggles the watch point attribute to the given value. |
| * |
| * @param watchpoint |
| * @param b on or off |
| */ |
| protected abstract void toggleWatchpoint(IWatchpoint watchpoint, boolean b) throws CoreException; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| } |
| |
| /* (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) { |
| if (selection instanceof IStructuredSelection) { |
| fWatchpoints = (IStructuredSelection) selection; |
| if (!selection.isEmpty()) { |
| Iterator iterator = fWatchpoints.iterator(); |
| while (iterator.hasNext()) { |
| Object next = iterator.next(); |
| if (next instanceof IWatchpoint) { |
| IWatchpoint watchpoint = (IWatchpoint) next; |
| action.setChecked(isChecked(watchpoint)); |
| if (!isEnabled(watchpoint)) { |
| action.setEnabled(false); |
| return; |
| } |
| } |
| } |
| action.setEnabled(true); |
| return; |
| } |
| } |
| action.setEnabled(false); |
| } |
| |
| /** |
| * Returns whether the action should be checke for the current selection |
| * |
| * @param watchpoint selected watchpoint |
| * @return whether the action should be checke for the current selection |
| */ |
| protected abstract boolean isChecked(IWatchpoint watchpoint); |
| |
| /** |
| * Returns whether this action is enabled for the given watchpoint. |
| * |
| * @param watchpoint |
| * @return whether this action is enabled for the given watchpoint |
| */ |
| protected abstract boolean isEnabled(IWatchpoint watchpoint); |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction) |
| */ |
| public void init(IAction action) { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#dispose() |
| */ |
| public void dispose() { |
| fWatchpoints = null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event) |
| */ |
| public void runWithEvent(IAction action, Event event) { |
| run(action); |
| } |
| } |