| /******************************************************************************* |
| * 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; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IAdapterManager; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.ui.actions.IToggleBreakpointsTarget; |
| 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; |
| |
| /** |
| * A toggle breakpoint action that can be contributed to an object. The action |
| * will perform a toggle breakpoint operation for a selected object. |
| * <p> |
| * EXPERIMENTAL |
| * </p> |
| * <p> |
| * Clients may subclass this class. |
| * </p> |
| * @since 3.0 |
| */ |
| public abstract class ToggleBreakpointObjectActionDelegate implements IObjectActionDelegate, IActionDelegate2 { |
| |
| private IWorkbenchPart fPart; |
| private IStructuredSelection fSelection; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| fPart = targetPart; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| IAdaptable adaptable = (IAdaptable) fSelection.getFirstElement(); |
| IToggleBreakpointsTarget target = (IToggleBreakpointsTarget) adaptable.getAdapter(IToggleBreakpointsTarget.class); |
| if (target == null) { |
| IAdapterManager adapterManager = Platform.getAdapterManager(); |
| target = (IToggleBreakpointsTarget) adapterManager.loadAdapter(adaptable, IToggleBreakpointsTarget.class.getName()); |
| } |
| if (target != null) { |
| try { |
| performAction(target, fPart, fSelection); |
| } catch (CoreException e) { |
| DebugPlugin.log(e); |
| } |
| } |
| } |
| |
| /** |
| * Performs the operation specific to this action. |
| * |
| * @param target adapter to toggle breakpoints |
| * @param part the active part |
| * @param selection the seleciton in the active part |
| * @exception CoreException if an exception occurrs |
| */ |
| protected abstract void performAction(IToggleBreakpointsTarget target, IWorkbenchPart part, ISelection selection) throws CoreException; |
| |
| /* (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) { |
| boolean enabled = false; |
| if (selection instanceof IStructuredSelection) { |
| IStructuredSelection ss = (IStructuredSelection) selection; |
| this.fSelection = ss; |
| if (!ss.isEmpty()) { |
| Object object = ss.getFirstElement(); |
| if (object instanceof IAdaptable) { |
| IAdaptable adaptable = (IAdaptable) object; |
| IToggleBreakpointsTarget target = (IToggleBreakpointsTarget) adaptable.getAdapter(IToggleBreakpointsTarget.class); |
| if (target == null) { |
| IAdapterManager adapterManager = Platform.getAdapterManager(); |
| enabled = adapterManager.hasAdapter(adaptable, IToggleBreakpointsTarget.class.getName()); |
| } else { |
| enabled = true; |
| } |
| } |
| } |
| } |
| action.setEnabled(enabled); |
| } |
| /* (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() { |
| fSelection = null; |
| fPart = 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); |
| } |
| } |