/*******************************************************************************
* Copyright (c) 2005, 2015 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.jface.dialogs;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
/**
* <p>
* This class is the abstract superclass of all dialog trays. A tray can be opened
* in any <code>TrayDialog</code>.
* </p>
*
* @see org.eclipse.jface.dialogs.TrayDialog
* @since 3.2
*/
public abstract class DialogTray {
/**
* Creates the contents (widgets) that will be contained in the tray.
* <p>
* Tray implementions must not set a layout on the parent composite, or assume
* a particular layout on the parent. The tray dialog will allocate space
* according to the natural size of the tray, and will fill the tray area with the
* tray's contents.
* </p>
*
* @param parent the composite that will contain the tray
* @return the contents of the tray, as a <code>Control</code>
*/
protected abstract Control createContents(Composite parent);
}