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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.taverna.ui.menu;
import java.awt.Component;
/**
* A contextual menu component.
* <p>
* A {@link MenuComponent} that also implements ContextualMenuComponent, when
* included in a menu tree rooted in the {@link DefaultContextualMenu} and
* retrieved using
* {@link MenuManager#createContextMenu(Object, Object, Component)}, will be
* {@linkplain #setContextualSelection(ContextualSelection) informed} before
* calls to {@link #isEnabled()} or {@link #getAction()}.
* <p>
* In this way the contextual menu item can be visible for only certain
* selections, and its action can be bound to the current selection.
* <p>
* Contextual menu components can be grouped by {@linkplain AbstractMenuSection
* sections} and {@linkplain AbstractMenu sub-menus}, or directly have the
* {@link DefaultContextualMenu} as the parent.
*
* @see ContextualSelection
* @see DefaultContextualMenu
* @author Stian Soiland-Reyes
*/
public interface ContextualMenuComponent extends MenuComponent {
/**
* Set the contextual selection, or <code>null</code> if there is no current
* selection (if the menu item was not included in a contextual menu).
*
* @param contextualSelection
* The contextual selection
*/
void setContextualSelection(ContextualSelection contextualSelection);
}