KitchenSink.java

/* Copyright (c) 2010 Zhihua (Dennis) Jiang
 * 
 * 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.gwtmobile.phonegap.kitchensink.client;

import java.util.Date;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.gwtmobile.phonegap.client.App;
import com.gwtmobile.phonegap.client.App.LoadUrlOptions;
import com.gwtmobile.phonegap.client.Events;
import com.gwtmobile.phonegap.client.Events.Callback;
import com.gwtmobile.phonegap.client.Notification;
import com.gwtmobile.phonegap.client.Notification.ConfirmCallback;
import com.gwtmobile.phonegap.client.Storage;
import com.gwtmobile.ui.client.page.Page;
import com.gwtmobile.ui.client.page.PageHistory;
import com.gwtmobile.ui.client.utils.Utils;
import com.gwtmobile.ui.client.widgets.Button;
import com.gwtmobile.ui.client.widgets.HeaderPanel;

public class KitchenSink implements EntryPoint {

	public static MainUi mainUi;
	
	@Override
	public void onModuleLoad() {
		if (Utils.isAndroid() || Utils.isIOS()) {
			
			if (Utils.isAndroid()) {
				Events.onBackButton(new Events.Callback() {			
					@Override
					public void onEventFired() {
						onBackKeyDown();
					}
				});
			}

			Events.onDeviceReady(new Callback() {			
				@Override
				public void onEventFired() {
					new Timer() {
						@Override
						public void run() {
							if (mainUi == null) {
								Utils.Console("Loading main ui...");
								mainUi = new MainUi();
								Page.load(mainUi);
							}
							else {
								this.cancel();
							}
						}
					}.scheduleRepeating(50);
				}
			});
		}
		else {
			mainUi = new MainUi();
			Page.load(mainUi);
		}
	}
	
    public void onBackKeyDown() {
    	if (PageHistory.Instance.from() == null) {
    		String showed = Storage.LocalStorage.getItem("ShowRatingDialog");
    		if (showed == null) {
        		Notification.confirm("If you think GWT Mobile PhoneGap is useful, " + 
        				"do you want to give it a good rating and comment?", 
        				new ConfirmCallback() {
    						@Override
    						public void onComplete(int selection) {
    							switch (selection) {
    								case 1:  //sure
    									App.loadUrl("market://details?id=com.gwtmobile.phonegap", 
    											LoadUrlOptions.newInstance().openExternal(true));
    								case 2:  //nope
    									Storage.LocalStorage.setItem("ShowRatingDialog", new Date().toString());
    									Storage.LocalStorage.setItem("ShowRatingSelection", selection + "");
    									break;
    								case 3:  //later
    							}
    				    		App.exitApp();    		
    						}
    					}, "Rate the app", "Sure!,Nope,Later");
    		}
    		else {
	    		App.exitApp();    		
    		}
    	}
    	else {
    		if (!PageHistory.Instance.current().getClass().toString().endsWith(".EventUi")) {
    			// emulate click on the header back button for page transition to show.
            	emulateClickOnBackButton();    	
    		}
    	}    		
    }

	protected void emulateClickOnBackButton() {
		HTMLPanel current = (HTMLPanel) PageHistory.Instance.current().getWidget();
		HeaderPanel header = (HeaderPanel) current.getWidget(0);
		Button left = header.getLeftButton();
		NativeEvent event = Document.get().createClickEvent(1, 1, 1, 1, 1, false, false, false, false);
		left.getElement().dispatchEvent(event);
	}
    
//    private native void doToast(String msg) /*-{
//	    $wnd.PhoneGap.exec(null, null, "GwtMobile", "toast", [msg]);
//	}-*/; 
//
//    private native void requestFocus() /*-{
//	    $wnd.PhoneGap.exec(null, null, "GwtMobile", "requestFocus", []);
//	}-*/; 

}