| /******************************************************************************* |
| * Copyright (c) 2000, 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.ui.internal; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.ui.IPageListener; |
| import org.eclipse.ui.IPartListener; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.actions.ActionFactory; |
| |
| /** |
| * Implements an action to open a list of open editors in the |
| * currently or last active workbook |
| * |
| * @since 3.0 |
| */ |
| public class WorkbookEditorsAction extends Action implements |
| ActionFactory.IWorkbenchAction, IPageListener, IPartListener { |
| |
| /** |
| * The workbench window; or <code>null</code> if this |
| * action has been <code>dispose</code>d. |
| */ |
| private IWorkbenchWindow workbenchWindow; |
| |
| /** |
| * Constructor for NavigateWorkbenchAction. |
| */ |
| public WorkbookEditorsAction(IWorkbenchWindow window) { |
| super(WorkbenchMessages.WorkbookEditorsAction_label); |
| if (window == null) { |
| throw new IllegalArgumentException(); |
| } |
| this.workbenchWindow = window; |
| // Do we need help here ? |
| //WorkbenchHelp.setHelp(this, IHelpContextIds.WORKBENCH_EDITORS_ACTION); |
| setActionDefinitionId("org.eclipse.ui.window.openEditorDropDown"); //$NON-NLS-1$ |
| workbenchWindow.addPageListener(this); |
| workbenchWindow.getPartService().addPartListener(this); |
| updateState(); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IAction. |
| */ |
| public void run() { |
| if (workbenchWindow == null) { |
| // action has been disposed |
| return; |
| } |
| IWorkbenchPage page = workbenchWindow.getActivePage(); |
| if (page != null) { |
| WorkbenchPage wbp = (WorkbenchPage) page; |
| EditorAreaHelper eah = wbp.getEditorPresentation(); |
| if (eah != null) { |
| eah.displayEditorList(); |
| } |
| } |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on ActionFactory.IWorkbenchAction. |
| */ |
| public void dispose() { |
| workbenchWindow.removePageListener(this); |
| workbenchWindow.getPartService().removePartListener(this); |
| workbenchWindow = null; |
| } |
| |
| /** |
| * Updates the enabled state. |
| */ |
| public void updateState() { |
| IWorkbenchPage page = null; |
| if (workbenchWindow != null) { |
| page = workbenchWindow.getActivePage(); |
| } |
| if (page == null) { |
| setEnabled(false); |
| return; |
| } |
| // enable iff there is at least one other editor to switch to |
| setEnabled(page.getEditorReferences().length >= 1); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPageListener#pageActivated(org.eclipse.ui.IWorkbenchPage) |
| */ |
| public void pageActivated(IWorkbenchPage page) { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPageListener#pageClosed(org.eclipse.ui.IWorkbenchPage) |
| */ |
| public void pageClosed(IWorkbenchPage page) { |
| updateState(); |
| } |
| |
| public void pageOpened(IWorkbenchPage page) { |
| updateState(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener#partActivated(org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void partActivated(IWorkbenchPart part) { |
| //no-op |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener#partBroughtToTop(org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void partBroughtToTop(IWorkbenchPart part) { |
| //no-op |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener#partClosed(org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void partClosed(IWorkbenchPart part) { |
| updateState(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener#partDeactivated(org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void partDeactivated(IWorkbenchPart part) { |
| //no-op |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener#partOpened(org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void partOpened(IWorkbenchPart part) { |
| updateState(); |
| } |
| } |