| /******************************************************************************* |
| * Copyright (c) 2008, 2011 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.jdt.internal.ui.javaeditor; |
| |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| |
| import org.eclipse.ui.IPerspectiveDescriptor; |
| import org.eclipse.ui.IPerspectiveListener; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.ui.texteditor.ResourceAction; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.JavaPluginImages; |
| |
| |
| /** |
| * Action to hide and show the editor breadcrumb. |
| |
| * @since 3.4 |
| */ |
| public class ToggleBreadcrumbAction extends ResourceAction implements IPropertyChangeListener, IPerspectiveListener { |
| |
| private IPreferenceStore fStore; |
| private IWorkbenchPage fPage; |
| |
| /** |
| * Constructs and updates the action. |
| * |
| * @param page the workbench page |
| */ |
| public ToggleBreadcrumbAction(IWorkbenchPage page) { |
| this(page, false); |
| } |
| |
| /** |
| * Constructs and updates the action. |
| * |
| * @param page the workbench page |
| * @param inContextMenu <code>true</code> iff this action is shown in the context menu of a breadcrumb |
| * |
| * @since 3.7 |
| */ |
| public ToggleBreadcrumbAction(IWorkbenchPage page, boolean inContextMenu) { |
| super(JavaEditorMessages.getBundleForConstructedKeys(), |
| inContextMenu ? "ToggleBreadcrumbAction.Hide." : "ToggleBreadcrumbAction.", //$NON-NLS-1$ //$NON-NLS-2$ |
| inContextMenu ? IAction.AS_PUSH_BUTTON : IAction.AS_CHECK_BOX); |
| |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.TOGGLE_BREADCRUMB_ACTION); |
| fPage= page; |
| if (!inContextMenu) { |
| JavaPluginImages.setToolImageDescriptors(this, "toggle_breadcrumb.png"); //$NON-NLS-1$ |
| fPage.getWorkbenchWindow().addPerspectiveListener(this); |
| } |
| update(); |
| } |
| |
| /* |
| * @see IAction#actionPerformed |
| */ |
| @Override |
| public void run() { |
| fStore.setValue(getPreferenceKey(), isChecked()); |
| } |
| |
| /* |
| * @see TextEditorAction#update |
| */ |
| public void update() { |
| if (fStore == null) { |
| fStore= JavaPlugin.getDefault().getPreferenceStore(); |
| fStore.addPropertyChangeListener(this); |
| } |
| String key= getPreferenceKey(); |
| setChecked(key != null && fStore.getBoolean(key)); |
| setEnabled(true); |
| } |
| |
| /* |
| * @see IPropertyChangeListener#propertyChange(PropertyChangeEvent) |
| */ |
| @Override |
| public void propertyChange(PropertyChangeEvent event) { |
| if (event.getProperty().equals(getPreferenceKey())) |
| setChecked(Boolean.valueOf(event.getNewValue().toString()).booleanValue()); |
| } |
| |
| /** |
| * Dispose this action |
| */ |
| public void dispose() { |
| if (fStore != null) { |
| fStore.removePropertyChangeListener(this); |
| fStore= null; |
| } |
| if (fPage != null) { |
| fPage.getWorkbenchWindow().removePerspectiveListener(this); |
| fPage= null; |
| } |
| } |
| |
| /** |
| * Returns the preference key for the breadcrumb. The value depends on the current perspective. |
| * |
| * @return the preference key to use |
| */ |
| private String getPreferenceKey() { |
| IPerspectiveDescriptor perspective= fPage.getPerspective(); |
| String perspectiveID= perspective != null ? perspective.getId() : "<unknown>"; //$NON-NLS-1$ |
| return JavaEditor.EDITOR_SHOW_BREADCRUMB + "." + perspectiveID; //$NON-NLS-1$ |
| } |
| |
| /* |
| * @see org.eclipse.ui.IPerspectiveListener#perspectiveActivated(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor) |
| * @since 3.4 |
| */ |
| @Override |
| public void perspectiveActivated(IWorkbenchPage page, IPerspectiveDescriptor perspective) { |
| boolean isChecked= fStore.getBoolean(getPreferenceKey()); |
| if (isChecked != isChecked()) { |
| Boolean value= Boolean.valueOf(isChecked); |
| fStore.firePropertyChangeEvent(getPreferenceKey(), value, value); |
| } |
| } |
| |
| /* |
| * @see org.eclipse.ui.IPerspectiveListener#perspectiveChanged(org.eclipse.ui.IWorkbenchPage, org.eclipse.ui.IPerspectiveDescriptor, java.lang.String) |
| */ |
| @Override |
| public void perspectiveChanged(IWorkbenchPage page, IPerspectiveDescriptor perspective, String changeId) { |
| } |
| } |