| /******************************************************************************* |
| * Copyright (c) 2006 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.team.internal.ui.mapping; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Collections; |
| |
| import org.eclipse.core.commands.*; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.operation.IRunnableWithProgress; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.team.internal.ui.*; |
| import org.eclipse.team.ui.mapping.*; |
| import org.eclipse.team.ui.synchronize.*; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * An action that delegates to an appropriate handler when performing |
| * a merge opereration. |
| * |
| * @since 3.2 |
| */ |
| public class MergeAction extends Action { |
| |
| private final String handlerId; |
| private final CommonMenuManager manager; |
| private final ISynchronizePageConfiguration configuration; |
| private IHandler defaultHandler; |
| |
| public MergeAction(String handlerId, CommonMenuManager manager, ISynchronizePageConfiguration configuration) { |
| Assert.isNotNull(handlerId); |
| Assert.isNotNull(manager); |
| Assert.isNotNull(configuration); |
| this.handlerId = handlerId; |
| this.manager = manager; |
| this.configuration = configuration; |
| } |
| |
| public void runWithEvent(Event event) { |
| IHandler handler = getHandler(); |
| if (handler != null && handler.isEnabled()) { |
| final SaveableComparison currentBuffer = ((ModelSynchronizeParticipant)configuration.getParticipant()).getActiveSaveable(); |
| if (currentBuffer != null && currentBuffer.isDirty()) { |
| SaveableComparison targetBuffer = null; |
| if (handler instanceof MergeActionHandler) { |
| MergeActionHandler mah = (MergeActionHandler) handler; |
| targetBuffer = mah.getSaveable(); |
| } |
| final SaveableComparison target = targetBuffer; |
| try { |
| PlatformUI.getWorkbench().getProgressService().run(true, true, new IRunnableWithProgress() { |
| public void run(IProgressMonitor monitor) throws InvocationTargetException, |
| InterruptedException { |
| try { |
| ModelParticipantAction.handleTargetSaveableChange(configuration.getSite().getShell(), target, currentBuffer, true, monitor); |
| } catch (CoreException e) { |
| throw new InvocationTargetException(e); |
| } |
| } |
| }); |
| } catch (InvocationTargetException e) { |
| Utils.handle(e); |
| return; |
| } catch (InterruptedException e) { |
| return; |
| } |
| ((ModelSynchronizeParticipant)configuration.getParticipant()).setActiveSaveable(targetBuffer); |
| } |
| try { |
| handler.execute(new ExecutionEvent(null, Collections.EMPTY_MAP, event, null)); |
| } catch (ExecutionException e) { |
| handle(e); |
| } |
| } |
| } |
| |
| /** |
| * Handle the given exception. By default, the user is prompted |
| * @param exception the exception |
| */ |
| protected void handle(Throwable exception) { |
| if (exception instanceof ExecutionException) { |
| ExecutionException ee = (ExecutionException) exception; |
| if (ee.getCause() != null) { |
| handle(exception.getCause()); |
| } |
| } |
| IStatus status; |
| if (exception instanceof CoreException) { |
| CoreException ce = (CoreException) exception; |
| status = ce.getStatus(); |
| } else { |
| status = new Status(IStatus.ERROR, TeamUIPlugin.ID, 0, TeamUIMessages.exception, exception); |
| } |
| ErrorDialog.openError(configuration.getSite().getShell(), null, null, status); |
| } |
| |
| private IHandler getHandler() { |
| IHandler handler = manager.getHandler(handlerId); |
| if (handler == null) { |
| if (defaultHandler == null) |
| defaultHandler = getDefaultHandler(); |
| return defaultHandler; |
| } |
| return handler; |
| } |
| |
| private IHandler getDefaultHandler() { |
| return MergeActionHandler.getDefaultHandler(handlerId, configuration); |
| } |
| |
| private boolean calculateEnablement() { |
| IHandler handler = getHandler(); |
| return handler != null && handler.isEnabled(); |
| } |
| |
| public void dispose() { |
| if (defaultHandler != null) |
| defaultHandler.dispose(); |
| } |
| |
| public void update() { |
| setEnabled(calculateEnablement()); |
| } |
| |
| } |