| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.web.bindery.event.shared.testing; |
| |
| import com.google.web.bindery.event.shared.Event; |
| import com.google.web.bindery.event.shared.Event.Type; |
| import com.google.web.bindery.event.shared.EventBus; |
| import com.google.web.bindery.event.shared.HandlerRegistration; |
| import com.google.web.bindery.event.shared.SimpleEventBus; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * Wraps an {@link EventBus} implementation to keep track of fired events. |
| */ |
| public class RecordingEventBus extends EventBus { |
| private final Set<Event<?>> firedEvents = new HashSet<Event<?>>(); |
| private final EventBus wrapped; |
| |
| public RecordingEventBus() { |
| this(new SimpleEventBus()); |
| } |
| |
| public RecordingEventBus(EventBus wrapped) { |
| this.wrapped = wrapped; |
| } |
| |
| @Override |
| public <H> HandlerRegistration addHandler(Type<H> type, H handler) { |
| return wrapped.addHandler(type, handler); |
| } |
| |
| @Override |
| public <H> HandlerRegistration addHandlerToSource(Type<H> type, Object source, H handler) { |
| return wrapped.addHandlerToSource(type, source, handler); |
| } |
| |
| /** |
| * Clears the remembered list of fired events. |
| */ |
| public void clearFiredEvents() { |
| firedEvents.clear(); |
| } |
| |
| @Override |
| public void fireEvent(Event<?> event) { |
| wrapped.fireEvent(event); |
| firedEvents.add(event); |
| } |
| |
| @Override |
| public void fireEventFromSource(Event<?> event, Object source) { |
| firedEvents.add(event); |
| wrapped.fireEventFromSource(event, source); |
| } |
| |
| /** |
| * Returns {@code true} if the specified event was fired. |
| */ |
| public boolean wasEventFired(Event<?> event) { |
| return firedEvents.contains(event); |
| } |
| } |