| /******************************************************************************* |
| * 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.part; |
| |
| import org.eclipse.ui.IEditorPart; |
| |
| /** |
| * Abstract base class for managing the installation/deinstallation of global |
| * actions for multi-page editors. |
| * <p> |
| * Subclasses must implement <code>setActivePage</code>, and may reimplement any |
| * of the following methods: |
| * </p> |
| * <ul> |
| * <li><code>contributeToMenu</code> - reimplement to contribute to menu</li> |
| * <li><code>contributeToToolBar</code> - reimplement to contribute to tool |
| * bar</li> |
| * <li><code>contributeToStatusLine</code> - reimplement to contribute to status |
| * line</li> |
| * </ul> |
| */ |
| public abstract class MultiPageEditorActionBarContributor extends EditorActionBarContributor { |
| /** |
| * Creates a multi-page editor action contributor. |
| */ |
| protected MultiPageEditorActionBarContributor() { |
| super(); |
| } |
| |
| /* |
| * Registers the contributor with the multi-page editor for future editor action |
| * redirection when the active page is changed, and sets the active page. |
| */ |
| @Override |
| public void setActiveEditor(IEditorPart part) { |
| IEditorPart activeNestedEditor = null; |
| if (part instanceof MultiPageEditorPart) { |
| activeNestedEditor = ((MultiPageEditorPart) part).getActiveEditor(); |
| } |
| setActivePage(activeNestedEditor); |
| } |
| |
| /** |
| * Sets the active page of the the multi-page editor to be the given editor. |
| * Redirect actions to the given editor if actions are not already being sent to |
| * it. |
| * <p> |
| * This method is called whenever the page changes. Subclasses must implement |
| * this method to redirect actions to the given editor (if not already directed |
| * to it). |
| * </p> |
| * |
| * @param activeEditor the new active editor, or <code>null</code> if there is |
| * no active page, or if the active page does not have a |
| * corresponding editor |
| */ |
| public abstract void setActivePage(IEditorPart activeEditor); |
| } |