| /******************************************************************************* |
| * Copyright (c) 2010, 2012 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.e4.ui.workbench.renderers.swt; |
| |
| import javax.inject.Inject; |
| import org.eclipse.e4.core.contexts.IEclipseContext; |
| import org.eclipse.e4.ui.di.LifecycleAboutToHide; |
| import org.eclipse.e4.ui.model.application.ui.menu.MMenu; |
| import org.eclipse.e4.ui.model.application.ui.menu.MPopupMenu; |
| import org.eclipse.e4.ui.workbench.modeling.EModelService; |
| import org.eclipse.e4.ui.workbench.modeling.LifecycleHelper; |
| import org.eclipse.e4.ui.workbench.swt.factories.IRendererFactory; |
| import org.eclipse.jface.action.IMenuListener2; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.swt.widgets.Menu; |
| |
| /** |
| * <code>MenuManagerHideProcessor</code> provides hooks for renderer processing |
| * before and after the <code>MenuManager</code> calls out to its |
| * <code>IMenuManagerListener2</code> for the <code>menuAboutToHide</code> |
| * events. |
| */ |
| public class MenuManagerHideProcessor implements IMenuListener2 { |
| |
| @Inject |
| private EModelService modelService; |
| |
| @Inject |
| private IRendererFactory rendererFactory; |
| |
| @Inject |
| private MenuManagerRenderer renderer; |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.action.IMenuListener#menuAboutToShow(org.eclipse.jface |
| * .action.IMenuManager) |
| */ |
| public void menuAboutToShow(IMenuManager manager) { |
| if (!(manager instanceof MenuManager)) { |
| return; |
| } |
| MenuManager menuManager = (MenuManager) manager; |
| final MMenu menuModel = renderer.getMenuModel(menuManager); |
| |
| LifecycleHelper.invokeLifecycleHandlers(modelService, menuModel, |
| LifecycleAboutToHide.class); |
| |
| final Menu menu = menuManager.getMenu(); |
| if (menuModel instanceof MPopupMenu) { |
| hidePopup(menu, (MPopupMenu) menuModel, menuManager); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.action.IMenuListener2#menuAboutToHide(org.eclipse.jface |
| * .action.IMenuManager) |
| */ |
| public void menuAboutToHide(IMenuManager manager) { |
| } |
| |
| private void hidePopup(Menu menu, MPopupMenu menuModel, |
| MenuManager menuManager) { |
| final IEclipseContext popupContext = menuModel.getContext(); |
| final IEclipseContext originalChild = (IEclipseContext) popupContext |
| .get(MenuManagerRendererFilter.TMP_ORIGINAL_CONTEXT); |
| popupContext.remove(MenuManagerRendererFilter.TMP_ORIGINAL_CONTEXT); |
| if (!menu.isDisposed()) { |
| menu.getDisplay().asyncExec(new Runnable() { |
| public void run() { |
| if (originalChild == null) { |
| popupContext.deactivate(); |
| } else { |
| originalChild.activate(); |
| } |
| } |
| }); |
| } |
| } |
| } |