org.eclipse.ui.IPageService Maven / Gradle / Ivy
/*******************************************************************************
* 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.ui;
/**
* A page service tracks the page and perspective lifecycle events within a
* workbench window.
*
* This service can be acquired from your service locator:
*
*
*
* IPageService service = (IPageService) getSite().getService(IPageService.class);
*
*
* - This service is not available globally, only from the workbench window
* level down.
*
*
* @see IWorkbenchWindow
* @see IPageListener
* @see IPerspectiveListener
* @see org.eclipse.ui.services.IServiceLocator#getService(Class)
* @noimplement This interface is not intended to be implemented by clients.
*/
public interface IPageService {
/**
* Adds the given listener for page lifecycle events. Has no effect if an
* identical listener is already registered.
*
* Note: listeners should be removed when no longer necessary. If not,
* they will be removed when the IServiceLocator used to acquire this service is
* disposed.
*
*
* @param listener a page listener
* @see #removePageListener(IPageListener)
*/
void addPageListener(IPageListener listener);
/**
* Adds the given listener for a page's perspective lifecycle events. Has no
* effect if an identical listener is already registered.
*
* Note: listeners should be removed when no longer necessary. If not,
* they will be removed when the IServiceLocator used to acquire this service is
* disposed.
*
*
* @param listener a perspective listener
* @see #removePerspectiveListener(IPerspectiveListener)
*/
void addPerspectiveListener(IPerspectiveListener listener);
/**
* Returns the active page.
*
* @return the active page, or null if no page is currently active
*/
IWorkbenchPage getActivePage();
/**
* Removes the given page listener. Has no effect if an identical listener is
* not registered.
*
* @param listener a page listener
*/
void removePageListener(IPageListener listener);
/**
* Removes the given page's perspective listener. Has no effect if an identical
* listener is not registered.
*
* @param listener a perspective listener
*/
void removePerspectiveListener(IPerspectiveListener listener);
}