| /******************************************************************************* |
| * Copyright (c) 2004, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.commands; |
| |
| import org.eclipse.core.commands.CommandEvent; |
| import org.eclipse.core.commands.ICommandListener; |
| import org.eclipse.jface.bindings.BindingManager; |
| import org.eclipse.ui.commands.ICommand; |
| |
| /** |
| * Wraps a legacy listener in a new listener interface. This simply forwards |
| * incoming events through to the old interface. |
| * |
| * @since 3.1 |
| */ |
| final class LegacyCommandListenerWrapper implements ICommandListener { |
| |
| /** |
| * The supporting binding manager; never <code>null</code>. |
| */ |
| private final BindingManager bindingManager; |
| |
| /** |
| * The listener which is being wrapped. This value should never be |
| * <code>null</code>. |
| */ |
| private final org.eclipse.ui.commands.ICommandListener listener; |
| |
| /** |
| * Constructs a new instance of <code>CommandListenerWrapper</code> around |
| * a legacy listener. |
| * |
| * @param listener |
| * The listener to be wrapped; must not be <code>null</code>. |
| */ |
| LegacyCommandListenerWrapper( |
| final org.eclipse.ui.commands.ICommandListener listener, |
| final BindingManager bindingManager) { |
| if (listener == null) { |
| throw new NullPointerException("Cannot wrap a null listener."); //$NON-NLS-1$ |
| } |
| |
| if (bindingManager == null) { |
| throw new NullPointerException( |
| "Cannot create a listener wrapper without a binding manager"); //$NON-NLS-1$ |
| } |
| |
| this.listener = listener; |
| this.bindingManager = bindingManager; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.commands.ICommandListener#commandChanged(org.eclipse.commands.CommandEvent) |
| */ |
| public final void commandChanged(final CommandEvent commandEvent) { |
| final ICommand command = new CommandLegacyWrapper(commandEvent.getCommand(), |
| bindingManager); |
| final boolean definedChanged = commandEvent.isDefinedChanged(); |
| final boolean descriptionChanged = commandEvent.isDescriptionChanged(); |
| final boolean handledChanged = commandEvent.isHandledChanged(); |
| final boolean nameChanged = commandEvent.isNameChanged(); |
| |
| listener.commandChanged(new org.eclipse.ui.commands.CommandEvent( |
| command, false, false, definedChanged, descriptionChanged, |
| handledChanged, false, nameChanged, null)); |
| |
| } |
| |
| public final boolean equals(final Object object) { |
| if (object instanceof LegacyCommandListenerWrapper) { |
| final LegacyCommandListenerWrapper wrapper = (LegacyCommandListenerWrapper) object; |
| return listener.equals(wrapper.listener); |
| } |
| |
| if (object instanceof org.eclipse.ui.commands.ICommandListener) { |
| final org.eclipse.ui.commands.ICommandListener other = (org.eclipse.ui.commands.ICommandListener) object; |
| return listener.equals(other); |
| } |
| |
| return false; |
| } |
| |
| public final int hashCode() { |
| return listener.hashCode(); |
| } |
| } |