| /******************************************************************************* |
| * Copyright (c) 2000, 2019 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 |
| *******************************************************************************/ |
| package org.eclipse.help.internal.base; |
| |
| import java.lang.reflect.*; |
| |
| import org.eclipse.core.runtime.*; |
| import org.osgi.framework.*; |
| |
| /** |
| * Utility class to control SWT Display and event loop run in |
| * org.eclipse.help.ui plug-in |
| */ |
| public class DisplayUtils { |
| private static final String HELP_UI_PLUGIN_ID = "org.eclipse.help.ui"; //$NON-NLS-1$ |
| private static final String LOOP_CLASS_NAME = "org.eclipse.help.ui.internal.HelpUIEventLoop"; //$NON-NLS-1$ |
| |
| static void runUI() { |
| invoke("run"); //$NON-NLS-1$ |
| } |
| static void wakeupUI() { |
| invoke("wakeup"); //$NON-NLS-1$ |
| } |
| |
| static void waitForDisplay() { |
| invoke("waitFor"); //$NON-NLS-1$ |
| } |
| |
| private static void invoke(String method) { |
| try { |
| Bundle bundle = Platform.getBundle(HELP_UI_PLUGIN_ID); |
| if (bundle == null) { |
| return; |
| } |
| Class<?> c = bundle.loadClass(LOOP_CLASS_NAME); |
| Method m = c.getMethod(method); |
| m.invoke(null); |
| } catch (Exception e) { |
| } |
| } |
| } |