| /******************************************************************************* |
| * Copyright (c) 2000, 2009 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.ui.internal.ide.handlers; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.swt.widgets.Shell; |
| |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.commands.IHandler; |
| import org.eclipse.core.commands.IHandlerListener; |
| |
| import org.eclipse.core.runtime.ListenerList; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.window.Window; |
| |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.IWorkbenchWindowActionDelegate; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.ide.IDE; |
| import org.eclipse.ui.internal.ide.IIDEHelpContextIds; |
| import org.eclipse.ui.internal.ide.dialogs.OpenResourceDialog; |
| |
| /** |
| * Implements the open resource action. Opens a dialog prompting for a file and |
| * opens the selected file in an editor. |
| * |
| * @since 2.1 |
| */ |
| public final class OpenResourceHandler extends Action implements IHandler, |
| IWorkbenchWindowActionDelegate { |
| |
| /** |
| * The identifier of the parameter storing the file path. |
| */ |
| private static final String PARAM_ID_FILE_PATH = "filePath"; //$NON-NLS-1$ |
| |
| /** |
| * A collection of objects listening to changes to this manager. This |
| * collection is <code>null</code> if there are no listeners. |
| */ |
| private transient ListenerList listenerList = null; |
| |
| /** |
| * Creates a new instance of the class. |
| */ |
| public OpenResourceHandler() { |
| super(); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, |
| IIDEHelpContextIds.OPEN_WORKSPACE_FILE_ACTION); |
| } |
| |
| public final void addHandlerListener(final IHandlerListener listener) { |
| if (listenerList == null) { |
| listenerList = new ListenerList(ListenerList.IDENTITY); |
| } |
| |
| listenerList.add(listener); |
| } |
| |
| public final void dispose() { |
| listenerList = null; |
| } |
| |
| public final Object execute(final ExecutionEvent event) |
| throws ExecutionException { |
| final List files = new ArrayList(); |
| |
| if (event.getParameter(PARAM_ID_FILE_PATH) == null) { |
| // Prompt the user for the resource to open. |
| Object[] result = queryFileResource(); |
| |
| if (result != null) { |
| for (int i = 0; i < result.length; i++) { |
| if (result[i] instanceof IFile) { |
| files.add(result[i]); |
| } |
| } |
| } |
| |
| } else { |
| // Use the given parameter. |
| final IResource resource = (IResource) event |
| .getObjectParameterForExecution(PARAM_ID_FILE_PATH); |
| if (!(resource instanceof IFile)) { |
| throw new ExecutionException( |
| "filePath parameter must identify a file"); //$NON-NLS-1$ |
| } |
| files.add(resource); |
| } |
| |
| if (files.size() > 0) { |
| |
| final IWorkbenchWindow window = PlatformUI.getWorkbench() |
| .getActiveWorkbenchWindow(); |
| if (window == null) { |
| throw new ExecutionException("no active workbench window"); //$NON-NLS-1$ |
| } |
| |
| final IWorkbenchPage page = window.getActivePage(); |
| if (page == null) { |
| throw new ExecutionException("no active workbench page"); //$NON-NLS-1$ |
| } |
| |
| try { |
| for (Iterator it = files.iterator(); it.hasNext();) { |
| IDE.openEditor(page, (IFile) it.next(), true); |
| } |
| } catch (final PartInitException e) { |
| throw new ExecutionException("error opening file in editor", e); //$NON-NLS-1$ |
| } |
| } |
| |
| return null; |
| } |
| |
| public final void init(final IWorkbenchWindow window) { |
| // Do nothing. |
| } |
| |
| /** |
| * Query the user for the resources that should be opened |
| * |
| * @return the resource that should be opened. |
| */ |
| private final Object[] queryFileResource() { |
| final IWorkbenchWindow window = PlatformUI.getWorkbench() |
| .getActiveWorkbenchWindow(); |
| if (window == null) { |
| return null; |
| } |
| final Shell parent = window.getShell(); |
| final IContainer input = ResourcesPlugin.getWorkspace().getRoot(); |
| |
| final OpenResourceDialog dialog = new OpenResourceDialog(parent, input, |
| IResource.FILE); |
| final int resultCode = dialog.open(); |
| if (resultCode != Window.OK) { |
| return null; |
| } |
| |
| final Object[] result = dialog.getResult(); |
| |
| return result; |
| } |
| |
| public final void removeHandlerListener(final IHandlerListener listener) { |
| if (listenerList != null) { |
| listenerList.remove(listener); |
| |
| if (listenerList.isEmpty()) { |
| listenerList = null; |
| } |
| } |
| } |
| |
| public final void run(final IAction action) { |
| try { |
| execute(new ExecutionEvent()); |
| } catch (final ExecutionException e) { |
| // TODO Do something meaningful and poignant. |
| } |
| } |
| |
| public final void selectionChanged(final IAction action, |
| final ISelection selection) { |
| // Do nothing. |
| } |
| } |