/*
* Copyright 2013 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 sample.client;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.RepeatingCommand;
import com.google.gwt.event.shared.EventBus;
import com.google.web.bindery.event.shared.binder.EventBinder;
import com.google.web.bindery.event.shared.binder.EventHandler;
import java.util.LinkedList;
/**
* Proxy for a contacts server. This proxy stands in on the event bus on behalf
* of the server, converting events to (fake) server calls, and firing other
* events after the server returns information.
*/
class ServerProxy {
interface MyEventBinder extends EventBinder<ServerProxy> {}
private static final MyEventBinder eventBinder = GWT.create(MyEventBinder.class);
private final EventBus eventBus;
ServerProxy(EventBus eventBus) {
this.eventBus = eventBus;
eventBinder.bindEventHandlers(this, eventBus);
}
@EventHandler
void onContactsScreenOpened(ContactScreenOpenedEvent event) {
// Pretend to make a server request
Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
@Override
public boolean execute() {
LinkedList<String> results = new LinkedList<String>();
results.add("John Doe");
results.add("Jane Doe");
eventBus.fireEvent(new ContactsLoadedEvent(results));
return false;
}
}, 1000);
}
}