| /******************************************************************************* |
| * 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.keys; |
| |
| import org.eclipse.jface.bindings.BindingManager; |
| import org.eclipse.jface.bindings.ISchemeListener; |
| import org.eclipse.jface.bindings.SchemeEvent; |
| import org.eclipse.ui.commands.IKeyConfiguration; |
| import org.eclipse.ui.commands.IKeyConfigurationListener; |
| import org.eclipse.ui.commands.KeyConfigurationEvent; |
| |
| /** |
| * A wrapper for old-style listeners to be hooked on to new style schemes. |
| * |
| * @since 3.1 |
| */ |
| final class LegacySchemeListenerWrapper implements ISchemeListener { |
| |
| /** |
| * The binding manager; never <code>null</code>. |
| */ |
| private final BindingManager bindingManager; |
| |
| /** |
| * The listener that is being wrapped. This value is never <code>null</code>. |
| */ |
| private final IKeyConfigurationListener listener; |
| |
| /** |
| * Constructs a new instance of <code>SchemeListenerWrapper</code> with |
| * the given listener. |
| * |
| * @param listener |
| * The listener to be wrapped; must mot be <code>null</code>. |
| */ |
| LegacySchemeListenerWrapper(final IKeyConfigurationListener 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 wrap a listener without a binding manager"); //$NON-NLS-1$ |
| } |
| |
| this.listener = listener; |
| this.bindingManager = bindingManager; |
| } |
| |
| public final boolean equals(final Object object) { |
| if (object instanceof LegacySchemeListenerWrapper) { |
| final LegacySchemeListenerWrapper wrapper = (LegacySchemeListenerWrapper) object; |
| return listener.equals(wrapper.listener); |
| } |
| |
| if (object instanceof IKeyConfigurationListener) { |
| final IKeyConfigurationListener other = (IKeyConfigurationListener) object; |
| return listener.equals(other); |
| } |
| |
| return false; |
| } |
| |
| public final int hashCode() { |
| return listener.hashCode(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.bindings.ISchemeListener#schemeChanged(org.eclipse.jface.bindings.SchemeEvent) |
| */ |
| public final void schemeChanged(final SchemeEvent schemeEvent) { |
| final IKeyConfiguration keyConfiguration = new SchemeLegacyWrapper( |
| schemeEvent.getScheme(), bindingManager); |
| final boolean definedChanged = schemeEvent.isDefinedChanged(); |
| final boolean nameChanged = schemeEvent.isNameChanged(); |
| final boolean parentIdChanged = schemeEvent.isParentIdChanged(); |
| |
| listener.keyConfigurationChanged(new KeyConfigurationEvent( |
| keyConfiguration, false, definedChanged, nameChanged, |
| parentIdChanged)); |
| } |
| } |