| /******************************************************************************* |
| * Copyright (c) 2019 Paul Pazderski 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: |
| * Paul Pazderski - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.tests.win32; |
| |
| import java.util.function.BooleanSupplier; |
| |
| import org.eclipse.swt.widgets.Display; |
| |
| public class SwtWin32TestUtil { |
| |
| /** |
| * Dispatch events until <em>condition</em> is <code>true</code> or timeout reached. |
| * |
| * @param display display to dispatch events for (not <code>null</code>) |
| * @param timeoutMs max time in milliseconds to process events |
| * @param condition optional condition. If the condition returns <code>true</code> event processing is stopped. |
| */ |
| public static void processEvents(Display display, int timeoutMs, BooleanSupplier condition) throws InterruptedException { |
| if (condition == null) { |
| condition = () -> false; |
| } |
| long targetTimestamp = System.currentTimeMillis() + timeoutMs; |
| while (!condition.getAsBoolean()) { |
| if (!display.readAndDispatch()) { |
| if (System.currentTimeMillis() < targetTimestamp) { |
| Thread.sleep(50); |
| } else { |
| return; |
| } |
| } |
| } |
| } |
| } |