| /******************************************************************************* |
| * Copyright (c) 2006, 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.internal.services; |
| |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Map; |
| import org.eclipse.ui.AbstractSourceProvider; |
| import org.eclipse.ui.ISources; |
| import org.eclipse.ui.internal.ActionSetsEvent; |
| import org.eclipse.ui.internal.menus.IActionSetsListener; |
| import org.eclipse.ui.internal.registry.IActionSetDescriptor; |
| |
| /** |
| * <p> |
| * A listener to changes in the action sets. |
| * </p> |
| * <p> |
| * This class is only intended for internal use within |
| * <code>org.eclipse.ui.workbench</code>. |
| * </p> |
| * |
| * @since 3.2 |
| */ |
| public final class ActionSetSourceProvider extends AbstractSourceProvider implements IActionSetsListener { |
| |
| /** |
| * The names of the sources supported by this source provider. |
| */ |
| private static final String[] PROVIDED_SOURCE_NAMES = new String[] { ISources.ACTIVE_ACTION_SETS_NAME }; |
| |
| /** |
| * The action sets last seen as active by this source provider. This value may |
| * be <code>null</code>. |
| */ |
| private IActionSetDescriptor[] activeActionSets; |
| |
| public ActionSetSourceProvider() { |
| super(); |
| } |
| |
| @Override |
| public void actionSetsChanged(final ActionSetsEvent event) { |
| final IActionSetDescriptor[] newActionSets = event.getNewActionSets(); |
| if (!Arrays.equals(newActionSets, activeActionSets)) { |
| if (DEBUG) { |
| final StringBuilder message = new StringBuilder(); |
| message.append("Action sets changed to ["); //$NON-NLS-1$ |
| if (newActionSets != null) { |
| for (int i = 0; i < newActionSets.length; i++) { |
| message.append(newActionSets[i].getLabel()); |
| if (i < newActionSets.length - 1) { |
| message.append(", "); //$NON-NLS-1$ |
| } |
| } |
| } |
| message.append(']'); |
| logDebuggingInfo(message.toString()); |
| } |
| |
| activeActionSets = newActionSets; |
| fireSourceChanged(ISources.ACTIVE_ACTION_SETS, ISources.ACTIVE_ACTION_SETS_NAME, activeActionSets); |
| |
| } |
| } |
| |
| @Override |
| public void dispose() { |
| activeActionSets = null; |
| } |
| |
| @Override |
| public Map getCurrentState() { |
| final Map currentState = new HashMap(); |
| currentState.put(ISources.ACTIVE_ACTION_SETS_NAME, activeActionSets); |
| return currentState; |
| } |
| |
| @Override |
| public String[] getProvidedSourceNames() { |
| return PROVIDED_SOURCE_NAMES; |
| } |
| } |