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package org.atmosphere.samples.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Document;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.rpc.StatusCodeException;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.RootPanel;
import java.io.Serializable;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.atmosphere.gwt.client.AtmosphereClient;
import org.atmosphere.gwt.client.AtmosphereGWTSerializer;
import org.atmosphere.gwt.client.AtmosphereListener;
import org.atmosphere.gwt.client.extra.Window;
import org.atmosphere.gwt.client.extra.WindowFeatures;
import org.atmosphere.gwt.client.extra.WindowSocket;
/**
*
* @author p.havelaar
*/
public class GWTDemo implements EntryPoint {
PollAsync polling = GWT.create(Poll.class);
AtmosphereClient client;
Logger logger = Logger.getLogger(getClass().getName());
Window screen;
@Override
public void onModuleLoad() {
Button button = new Button("Broadcast");
button.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
sendMessage();
}
});
Button post = new Button("Post");
post.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
client.post(new Event(count++, "This was send using the post mechanism"));
}
});
Button pollButton = new Button("Poll");
pollButton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
polling.pollDelayed(3000, new AsyncCallback<Event>() {
@Override
public void onFailure(Throwable caught) {
GWT.log("Failed to poll", caught);
}
@Override
public void onSuccess(Event result) {
Info.display("Polling message received: " + result.getCode(), result.getData());
}
});
}
});
Button wnd = new Button("Open Window");
wnd.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
@Override
public void execute() {
screen = Window.current().open(Document.get().getURL(), "child", new WindowFeatures().setStatus(true).setResizable(true));
}
});
}
});
Button sendWindow = new Button("Send to window");
sendWindow.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
if (screen != null) {
WindowSocket.post(screen, "wsock", "Hello Child!");
}
}
});
WindowSocket socket = new WindowSocket();
socket.addHandler(new WindowSocket.MessageHandler() {
@Override
public void onMessage(String message) {
Info.display("Received through window socket", message);
}
});
socket.bind("wsock");
RootPanel.get("buttons").add(button);
RootPanel.get("buttons").add(post);
RootPanel.get("buttons").add(pollButton);
RootPanel.get("buttons").add(wnd);
RootPanel.get("buttons").add(sendWindow);
initialize();
Button killbutton = new Button("Stop");
killbutton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
client.stop();
}
});
RootPanel.get("buttons").add(killbutton);
}
private class MyCometListener implements AtmosphereListener {
@Override
public void onConnected(int heartbeat, int connectionID) {
GWT.log("comet.connected [" +heartbeat+", "+connectionID+"]");
}
@Override
public void onBeforeDisconnected() {
logger.log(Level.INFO, "comet.beforeDisconnected");
}
@Override
public void onDisconnected() {
GWT.log("comet.disconnected");
}
@Override
public void onError(Throwable exception, boolean connected) {
int statuscode =-1;
if (exception instanceof StatusCodeException) {
statuscode = ((StatusCodeException)exception).getStatusCode();
}
GWT.log("comet.error [connected=" + connected + "] ("+statuscode+")", exception);
}
@Override
public void onHeartbeat() {
GWT.log("comet.heartbeat ["+client.getConnectionID()+"]");
}
@Override
public void onRefresh() {
GWT.log("comet.refresh ["+client.getConnectionID()+"]");
}
@Override
public void onMessage(List<? extends Serializable> messages) {
StringBuilder result = new StringBuilder();
for(Serializable obj : messages) {
result.append(obj.toString()).append("<br/>");
}
logger.log(Level.INFO, "comet.message ["+client.getConnectionID()+"] " + result.toString());
Info.display("["+client.getConnectionID()+"] Received " + messages.size() + " messages", result.toString());
}
};
public void initialize() {
MyCometListener cometListener = new MyCometListener();
AtmosphereGWTSerializer serializer = GWT.create(EventSerializer.class);
// set a small length parameter to force refreshes
// normally you should remove the length parameter
client = new AtmosphereClient(GWT.getModuleBaseURL()+"gwtComet", serializer, cometListener);
client.start();
}
static int count = 0;
public void sendMessage() {
client.broadcast(new Event(count++, "Button clicked!"));
}
}