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/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jface.action;
import org.eclipse.pde.api.tools.annotations.NoImplement;
/**
* The IMenuManager interface provides protocol for managing
* contributions to a menu bar and its sub menus. An IMenuManager
* is also an IContributionItem, allowing sub-menus to be nested in
* parent menus.
*
* This interface is internal to the framework; it should not be implemented
* outside the framework.
*
*
* This package provides a concrete menu manager implementation,
* {@link MenuManager MenuManager}.
*
*/
@NoImplement
public interface IMenuManager extends IContributionManager, IContributionItem {
/**
* Adds a menu listener to this menu.
* Has no effect if an identical listener is already registered.
*
* @param listener a menu listener
*/
public void addMenuListener(IMenuListener listener);
/**
* Finds the manager for the menu at the given path. A path
* consists of contribution item ids separated by the separator
* character. The path separator character is '/'.
*
* Convenience for findUsingPath(path) which
* extracts an IMenuManager if possible.
*
*
* @param path the path string
* @return the menu contribution item, or null
* if there is no such contribution item or if the item does
* not have an associated menu manager
*/
public IMenuManager findMenuUsingPath(String path);
/**
* Finds the contribution item at the given path. A path
* consists of contribution item ids separated by the separator
* character. The path separator character is '/'.
*
* @param path the path string
* @return the contribution item, or null if there is no
* such contribution item
*/
public IContributionItem findUsingPath(String path);
/**
* Returns whether all items should be removed when the menu is about to
* show, but before notifying menu listeners. The default is
* false.
*
* @return true if all items should be removed when shown,
* false if not
*/
public boolean getRemoveAllWhenShown();
/**
* Returns whether this menu should be enabled or not.
*
* @return true if enabled, and
* false if disabled
*/
@Override
public boolean isEnabled();
/**
* Removes the given menu listener from this menu.
* Has no effect if an identical listener is not registered.
*
* @param listener the menu listener
*/
public void removeMenuListener(IMenuListener listener);
/**
* Sets whether all items should be removed when the menu is about to show,
* but before notifying menu listeners.
*
* @param removeAll
* true if all items should be removed when shown,
* false if not
*/
public void setRemoveAllWhenShown(boolean removeAll);
/**
* Incrementally builds the menu from the contribution items, and
* does so recursively for all submenus.
*
* @param force true means update even if not dirty,
* and false for normal incremental updating
*/
public void updateAll(boolean force);
}