/**
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.waveprotocol.wave.client.widget.toolbar;
import org.waveprotocol.wave.client.widget.toolbar.buttons.ToolbarButtonView;
/**
* A view of a submenu toolbar; the union of a toolbar (for adding buttons) and
* a button display (for being added to a toolbar).
*
* @author kalman@google.com (Benjamin Kalman)
*/
public interface SubmenuToolbarView extends ToolbarView, ToolbarButtonView {
/**
* A listener to submenu show/hide events so that users of the submenu can
* dynamically generate content when shown.
*/
interface Listener {
/**
* Called when the submenu is shown.
*/
void onSubmenuShown();
/**
* Called when the submenu is hidden.
*/
void onSubmenuHidden();
}
/**
* Sets the listener to submenu show/hide events.
*/
void setListener(Listener listener);
}