| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Lars Vogel <Lars.Vogel@gmail.com> - Bug 440810 |
| *******************************************************************************/ |
| package org.eclipse.ui.part; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.e4.core.contexts.ContextFunction; |
| import org.eclipse.e4.core.contexts.IEclipseContext; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.IActionBars; |
| import org.eclipse.ui.IViewSite; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.SubActionBars; |
| import org.eclipse.ui.contexts.IContextService; |
| import org.eclipse.ui.handlers.IHandlerService; |
| import org.eclipse.ui.internal.PartSite; |
| import org.eclipse.ui.internal.PopupMenuExtender; |
| import org.eclipse.ui.internal.contexts.NestableContextService; |
| import org.eclipse.ui.internal.expressions.ActivePartExpression; |
| import org.eclipse.ui.internal.handlers.LegacyHandlerService; |
| import org.eclipse.ui.internal.part.IPageSiteHolder; |
| import org.eclipse.ui.internal.services.INestable; |
| import org.eclipse.ui.internal.services.IServiceLocatorCreator; |
| import org.eclipse.ui.internal.services.IWorkbenchLocationService; |
| import org.eclipse.ui.internal.services.ServiceLocator; |
| import org.eclipse.ui.internal.services.WorkbenchLocationService; |
| import org.eclipse.ui.services.IServiceScopes; |
| |
| /** |
| * This implementation of <code>IPageSite</code> provides a site for a page |
| * within a <code>PageBookView</code>. Most methods are forwarded to the view's |
| * site. |
| */ |
| public class PageSite implements IPageSite, INestable { |
| |
| /** |
| * The list of menu extender for each registered menu. |
| */ |
| private ArrayList<PopupMenuExtender> menuExtenders; |
| |
| /** |
| * The "parent" view site |
| */ |
| private IViewSite parentSite; |
| |
| /** |
| * A selection provider set by the page. Value is <code>null</code> until set. |
| */ |
| private ISelectionProvider selectionProvider; |
| |
| /** |
| * The localized service locator for this page site. This locator is never |
| * <code>null</code>. |
| */ |
| private final ServiceLocator serviceLocator; |
| |
| /** |
| * The action bars for this site |
| */ |
| private SubActionBars subActionBars; |
| |
| private IEclipseContext e4Context; |
| |
| private NestableContextService contextService; |
| |
| private boolean active = false; |
| |
| /** |
| * Creates a new sub view site of the given parent view site. |
| * |
| * @param parentViewSite the parent view site |
| */ |
| public PageSite(final IViewSite parentViewSite) { |
| Assert.isNotNull(parentViewSite); |
| parentSite = parentViewSite; |
| subActionBars = new SubActionBars(parentViewSite.getActionBars(), this); |
| |
| // Initialize the service locator. |
| IServiceLocatorCreator slc = parentSite.getService(IServiceLocatorCreator.class); |
| e4Context = ((PartSite) parentViewSite).getContext().createChild("PageSite"); //$NON-NLS-1$ |
| this.serviceLocator = (ServiceLocator) slc.createServiceLocator(parentViewSite, null, () -> { |
| // final Control control = |
| // ((PartSite)parentViewSite).getPane().getControl(); |
| // if (control != null && !control.isDisposed()) { |
| // ((PartSite)parentViewSite).getPane().doHide(); |
| // } |
| // TODO compat: not tsure what this should do |
| }, e4Context); |
| initializeDefaultServices(); |
| } |
| |
| /** |
| * Initialize the slave services for this site. |
| */ |
| private void initializeDefaultServices() { |
| serviceLocator.registerService(IWorkbenchLocationService.class, |
| new WorkbenchLocationService(IServiceScopes.PAGESITE_SCOPE, getWorkbenchWindow().getWorkbench(), |
| getWorkbenchWindow(), parentSite, null, this, 3)); |
| serviceLocator.registerService(IPageSiteHolder.class, (IPageSiteHolder) () -> PageSite.this); |
| |
| // create a local handler service so that when this page |
| // activates/deactivates, its handlers will also be taken into/out of |
| // consideration during handler lookups |
| IHandlerService handlerService = new LegacyHandlerService(e4Context); |
| e4Context.set(IHandlerService.class, handlerService); |
| |
| e4Context.set(IContextService.class.getName(), new ContextFunction() { |
| @Override |
| public Object compute(IEclipseContext context, String contextKey) { |
| if (contextService == null) { |
| contextService = new NestableContextService(context.getParent().get(IContextService.class), |
| new ActivePartExpression(parentSite.getPart())); |
| } |
| return contextService; |
| } |
| }); |
| } |
| |
| /** |
| * Disposes of the menu extender contributions. |
| */ |
| protected void dispose() { |
| if (menuExtenders != null) { |
| HashSet<MenuManager> managers = new HashSet<>(menuExtenders.size()); |
| for (PopupMenuExtender menuExtender : menuExtenders) { |
| PopupMenuExtender ext = menuExtender; |
| managers.add(ext.getManager()); |
| ext.dispose(); |
| } |
| if (managers.size() > 0) { |
| for (Iterator<MenuManager> iterator = managers.iterator(); iterator.hasNext();) { |
| MenuManager mgr = iterator.next(); |
| mgr.dispose(); |
| } |
| } |
| menuExtenders = null; |
| } |
| subActionBars.dispose(); |
| |
| if (contextService != null) { |
| contextService.dispose(); |
| } |
| |
| serviceLocator.dispose(); |
| e4Context.dispose(); |
| } |
| |
| /** |
| * The PageSite implementation of this <code>IPageSite</code> method returns the |
| * <code>SubActionBars</code> for this site. |
| * |
| * @return the subactionbars for this site |
| */ |
| @Override |
| public IActionBars getActionBars() { |
| return subActionBars; |
| } |
| |
| @Override |
| public <T> T getAdapter(Class<T> adapter) { |
| return Platform.getAdapterManager().getAdapter(this, adapter); |
| } |
| |
| @Override |
| public IWorkbenchPage getPage() { |
| return parentSite.getPage(); |
| } |
| |
| @Override |
| public ISelectionProvider getSelectionProvider() { |
| return selectionProvider; |
| } |
| |
| @Override |
| public final <T> T getService(final Class<T> key) { |
| T service = serviceLocator.getService(key); |
| if (active && service instanceof INestable) { |
| ((INestable) service).activate(); |
| } |
| return service; |
| } |
| |
| @Override |
| public Shell getShell() { |
| return parentSite.getShell(); |
| } |
| |
| @Override |
| public IWorkbenchWindow getWorkbenchWindow() { |
| return parentSite.getWorkbenchWindow(); |
| } |
| |
| @Override |
| public final boolean hasService(final Class<?> key) { |
| return serviceLocator.hasService(key); |
| } |
| |
| @Override |
| public void registerContextMenu(String menuID, MenuManager menuMgr, ISelectionProvider selProvider) { |
| if (menuExtenders == null) { |
| menuExtenders = new ArrayList<>(1); |
| } |
| PartSite.registerContextMenu(menuID, menuMgr, selProvider, false, parentSite.getPart(), e4Context, |
| menuExtenders); |
| } |
| |
| @Override |
| public void setSelectionProvider(ISelectionProvider provider) { |
| selectionProvider = provider; |
| } |
| |
| /* Package */IEclipseContext getSiteContext() { |
| return e4Context; |
| } |
| |
| @Override |
| public void activate() { |
| active = true; |
| |
| serviceLocator.activate(); |
| |
| if (contextService != null) { |
| contextService.activate(); |
| } |
| } |
| |
| @Override |
| public void deactivate() { |
| active = false; |
| if (contextService != null) { |
| contextService.deactivate(); |
| } |
| |
| serviceLocator.deactivate(); |
| } |
| } |