| /******************************************************************************* |
| * 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.ContributionItem; |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.MenuItem; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchWindow; |
| |
| /** |
| * A dynamic menu item to switch to other opened workbench windows. |
| */ |
| public class SwitchToWindowMenu extends ContributionItem { |
| private static final int MAX_TEXT_LENGTH = 40; |
| |
| private IWorkbenchWindow workbenchWindow; |
| |
| private boolean showSeparator; |
| |
| private boolean dirty = true; |
| |
| private IMenuListener menuListener = new IMenuListener() { |
| public void menuAboutToShow(IMenuManager manager) { |
| manager.markDirty(); |
| dirty = true; |
| } |
| }; |
| |
| /** |
| * Creates a new instance of this class. |
| * |
| * @param window the workbench window this action applies to |
| * @param showSeparator whether to add a separator in the menu |
| */ |
| public SwitchToWindowMenu(IWorkbenchWindow window, String id, |
| boolean showSeparator) { |
| super(id); |
| this.workbenchWindow = window; |
| this.showSeparator = showSeparator; |
| } |
| |
| /** |
| * Returns the text for a window. This may be truncated to fit |
| * within the MAX_TEXT_LENGTH. |
| */ |
| private String calcText(int number, IWorkbenchWindow window) { |
| String suffix = window.getShell().getText(); |
| if (suffix == null) { |
| return null; |
| } |
| |
| StringBuffer sb = new StringBuffer(); |
| if (number < 10) { |
| sb.append('&'); |
| } |
| sb.append(number); |
| sb.append(' '); |
| if (suffix.length() <= MAX_TEXT_LENGTH) { |
| sb.append(suffix); |
| } else { |
| sb.append(suffix.substring(0, MAX_TEXT_LENGTH)); |
| sb.append("..."); //$NON-NLS-1$ |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * Fills the given menu with menu items for all |
| * opened workbench windows. |
| */ |
| public void fill(Menu menu, int index) { |
| |
| // Get workbench windows. |
| IWorkbench workbench = workbenchWindow.getWorkbench(); |
| IWorkbenchWindow[] array = workbench.getWorkbenchWindows(); |
| // avoid showing the separator and list for 0 or 1 items |
| if (array.length < 2) { |
| return; |
| } |
| |
| if (getParent() instanceof MenuManager) { |
| ((MenuManager) getParent()).addMenuListener(menuListener); |
| } |
| |
| if (!dirty) { |
| return; |
| } |
| |
| // Add separator. |
| if (showSeparator) { |
| new MenuItem(menu, SWT.SEPARATOR, index); |
| ++index; |
| } |
| |
| // Add one item for each window. |
| int count = 1; |
| for (int i = 0; i < array.length; i++) { |
| final IWorkbenchWindow window = array[i]; |
| // can encounter disposed shells if this update is in response to a shell closing |
| if (!window.getShell().isDisposed()) { |
| String name = calcText(count, window); |
| if (name != null) { |
| MenuItem mi = new MenuItem(menu, SWT.RADIO, index); |
| index++; |
| count++; |
| mi.setText(name); |
| mi.addSelectionListener(new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent e) { |
| Shell windowShell = window.getShell(); |
| if (windowShell.getMinimized()) { |
| windowShell.setMinimized(false); |
| } |
| windowShell.setActive(); |
| windowShell.moveAbove(null); |
| } |
| }); |
| mi.setSelection(window == workbenchWindow); |
| } |
| } |
| } |
| dirty = false; |
| } |
| |
| /** |
| * Overridden to always return true and force dynamic menu building. |
| */ |
| public boolean isDirty() { |
| return dirty; |
| } |
| |
| /** |
| * Overridden to always return true and force dynamic menu building. |
| */ |
| public boolean isDynamic() { |
| return true; |
| } |
| } |