/*******************************************************************************
* Copyright (c) 2005, 2016 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.help.ui.internal;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.help.ui.internal.views.HelpTray;
import org.eclipse.jface.dialogs.TrayDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
* The command handler that gets invoked when the "Close User Assistance
* Tray" command is invoked. It finds the current active dialog, and if it
* has the tray open, it closes it.
*/
public class CloseHelpTrayHandler extends AbstractHandler {
/**
* Executes the command.
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
Display display = Display.getCurrent();
if (display == null) {
display = Display.getDefault();
}
if (display != null) {
Shell shell = Display.getCurrent().getActiveShell();
if (shell != null && !shell.isDisposed()) {
Object shellData = shell.getData();
if (shellData instanceof TrayDialog) {
TrayDialog trayDialog = (TrayDialog)shellData;
if (trayDialog.getTray() instanceof HelpTray) {
trayDialog.closeTray();
}
}
}
}
return null;
}
}