在SWTBot中触发右键菜单（ContextMenu）

在SWTBot中，触发右键菜单是简单的task，但是当要触发contextMenu的二级菜单时，就会出现问题，原因可能是事件的丢失，诸如下面的菜单：

   Tree

     TreeItem1

       TreeItem2

  想要在TreeItem2上触发SOMA->SOMA sub menu是困难的，下面是我的解决方案（从SWTBot 论坛上抄出来的呵呵http://www.eclipse.org/forums/index.php?t=msg&goto=629948&S=96549f36b839765eb99c047d8b51151c）

 

经验是，不能直接传入TreeItem, 要把整个Tree node传入才行 

 

 String[] paths={"SOMA-ME","Extract SOMA Service Model Elements"};			

ContextMenuHelper.clickContextMenu(projectTree,paths);

 

ContextMenuHelper 源代码：

package com.ibm.asset.adit.mdhi.test.util;

import static
org.eclipse.swtbot.swt.finder.matchers.WidgetMatcherFactory.withMnemonic;
import static org.hamcrest.Matchers.allOf;
import static org.hamcrest.Matchers.instanceOf;

import java.util.Arrays;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swtbot.swt.finder.exceptions.WidgetNotFoundException;
import org.eclipse.swtbot.swt.finder.finders.UIThreadRunnable;
import org.eclipse.swtbot.swt.finder.results.VoidResult;
import org.eclipse.swtbot.swt.finder.results.WidgetResult;
import org.eclipse.swtbot.swt.finder.widgets.AbstractSWTBot;
import org.hamcrest.Matcher;

public class ContextMenuHelper {
	/**
	 * Clicks the context menu matching the text.
	 * 
	 * @param text
	 *            the text on the context menu.
	 * @throws WidgetNotFoundException
	 *             if the widget is not found.
	 */
	public static void clickContextMenu(final AbstractSWTBot<?> bot,
			final String... texts) {

		// show
		final MenuItem menuItem = UIThreadRunnable
				.syncExec(new WidgetResult<MenuItem>() {
					public MenuItem run() {
						MenuItem menuItem = null;
						Control control = (Control) bot.widget;
						Menu menu = control.getMenu();
						for (String text : texts) {
							Matcher<?> matcher = allOf(
									instanceOf(MenuItem.class),
									withMnemonic(text));
							menuItem = show(menu, matcher);
							if (menuItem != null) {
								menu = menuItem.getMenu();
							} else {
								hide(menu);
								break;
							}
						}

						return menuItem;
					}
				});
		if (menuItem == null) {
			throw new WidgetNotFoundException("Could not find menu: "
					+ Arrays.asList(texts));
		}

		// click
		click(menuItem);

		// hide
		UIThreadRunnable.syncExec(new VoidResult() {
			public void run() {
				hide(menuItem.getParent());
			}
		});
	}

	private static MenuItem show(final Menu menu, final Matcher<?> matcher) {
		if (menu != null) {
			menu.notifyListeners(SWT.Show, new Event());
			MenuItem[] items = menu.getItems();
			for (final MenuItem menuItem : items) {
				if (matcher.matches(menuItem)) {
					return menuItem;
				}
			}
			menu.notifyListeners(SWT.Hide, new Event());
		}
		return null;
	}

	private static void click(final MenuItem menuItem) {
		final Event event = new Event();
		event.time = (int) System.currentTimeMillis();
		event.widget = menuItem;
		event.display = menuItem.getDisplay();
		event.type = SWT.Selection;

		UIThreadRunnable.asyncExec(menuItem.getDisplay(), new VoidResult() {
			public void run() {
				menuItem.notifyListeners(SWT.Selection, event);
			}
		});
	}

	private static void hide(final Menu menu) {
		menu.notifyListeners(SWT.Hide, new Event());
		if (menu.getParentMenu() != null) {
			hide(menu.getParentMenu());
		}
	}
}