| /******************************************************************************* |
| * Copyright (c) 2007, 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 |
| * Friederike Schertel <friederike@schertel.org> - Bug 478336 |
| ******************************************************************************/ |
| |
| package org.eclipse.ui.internal; |
| |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.expressions.EvaluationResult; |
| import org.eclipse.core.expressions.Expression; |
| import org.eclipse.core.expressions.ExpressionInfo; |
| import org.eclipse.core.expressions.IEvaluationContext; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.e4.ui.model.application.ui.basic.MPart; |
| import org.eclipse.e4.ui.model.application.ui.menu.MMenu; |
| import org.eclipse.e4.ui.workbench.IPresentationEngine; |
| import org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.CTabFolder; |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.ToolBar; |
| import org.eclipse.swt.widgets.ToolItem; |
| import org.eclipse.ui.ISources; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchPartSite; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| |
| /** |
| * Shows the View Menu |
| * <p> |
| * Replacement for: ShowViewMenuAction |
| * </p> |
| * |
| * @since 3.3 |
| * |
| */ |
| public class ShowViewMenuHandler extends AbstractEvaluationHandler { |
| |
| private Expression enabledWhen; |
| |
| public ShowViewMenuHandler() { |
| registerEnablement(); |
| } |
| |
| @Override |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| IWorkbenchPart part = HandlerUtil.getActivePart(event); |
| if (part != null) { |
| IWorkbenchPartSite site = part.getSite(); |
| if (site instanceof PartSite) { |
| final MPart model = ((PartSite) site).getModel(); |
| Composite partContainer = (Composite) model.getWidget(); |
| if (partContainer != null) { |
| Composite parent = partContainer.getParent(); |
| while (parent != null) { |
| if (parent instanceof CTabFolder) { |
| CTabFolder ctf = (CTabFolder) parent; |
| final Control topRight = ctf.getTopRight(); |
| if (topRight instanceof Composite) { |
| for (Control child : ((Composite) topRight).getChildren()) { |
| if (child instanceof ToolBar && "ViewMenu".equals(child.getData())) { //$NON-NLS-1$ |
| ToolBar tb = (ToolBar) child; |
| ToolItem ti = tb.getItem(0); |
| Event sevent = new Event(); |
| sevent.type = SWT.Selection; |
| sevent.widget = ti; |
| ti.notifyListeners(SWT.Selection, sevent); |
| } |
| } |
| } |
| return null; |
| } |
| parent = parent.getParent(); |
| } |
| |
| MMenu menuModel = StackRenderer.getViewMenu(model); |
| if (menuModel != null) { |
| showStandaloneViewMenu(event, model, menuModel, partContainer); |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| private void showStandaloneViewMenu(ExecutionEvent event, MPart model, MMenu menuModel, Composite partContainer) { |
| Shell shell = partContainer.getShell(); |
| Menu menu = (Menu) menuModel.getWidget(); |
| if (menu == null) { |
| IPresentationEngine engine = (IPresentationEngine) HandlerUtil.getVariable(event, |
| IPresentationEngine.class.getName()); |
| menu = (Menu) engine.createGui(menuModel, shell, model.getContext()); |
| if (menu != null) { |
| final Menu tmpMenu = menu; |
| partContainer.addDisposeListener(e -> tmpMenu.dispose()); |
| } |
| } |
| |
| Display display = menu.getDisplay(); |
| Point location = display.map(partContainer, null, partContainer.getLocation()); |
| Point size = partContainer.getSize(); |
| menu.setLocation(location.x + size.x, location.y); |
| menu.setVisible(true); |
| |
| while (!menu.isDisposed() && menu.isVisible()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| if (!(menu.getData() instanceof MenuManager)) { |
| menu.dispose(); |
| } |
| } |
| |
| @Override |
| protected Expression getEnabledWhenExpression() { |
| if (enabledWhen == null) { |
| enabledWhen = new Expression() { |
| @Override |
| public EvaluationResult evaluate(IEvaluationContext context) throws CoreException { |
| // IWorkbenchPart part = InternalHandlerUtil |
| // .getActivePart(context); |
| // if (part != null) { |
| // PartPane pane = ((PartSite) part.getSite()).getPane(); |
| // if ((pane instanceof ViewPane) |
| // && ((ViewPane) pane).hasViewMenu()) { |
| return EvaluationResult.TRUE; |
| // } |
| // } |
| // return EvaluationResult.FALSE; |
| } |
| |
| @Override |
| public void collectExpressionInfo(ExpressionInfo info) { |
| info.addVariableNameAccess(ISources.ACTIVE_PART_NAME); |
| } |
| }; |
| } |
| return enabledWhen; |
| } |
| |
| } |