| EZboy |
01-12-2007 12:22 PM |
Dont mind, found it!
Code:
/*
* BrowserFieldSampleApplication.java
*
* Copyright ¬ 1998-2006 Research In Motion Ltd.
*/
package com.rim.samples.device.blackberry.browser;
import java.io.IOException;
import javax.microedition.io.HttpConnection;
import net.rim.device.api.browser.field.*;
import net.rim.device.api.io.http.HttpHeaders;
import net.rim.device.api.system.Application;
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.Status;
import net.rim.device.api.ui.container.MainScreen;
/**
*
*/
final public class BrowserFieldSampleApplication extends UiApplication implements RenderingApplication {
private static final String REFERER = "referer";
private RenderingSession _renderingSession;
private MainScreen _mainScreen;
private HttpConnection _currentConnection;
/***************************************************************************
* Main.
**************************************************************************/
public static void main(String[] args) {
BrowserFieldSampleApplication app = new BrowserFieldSampleApplication();
app.enterEventDispatcher();
}
private BrowserFieldSampleApplication() {
_mainScreen = new MainScreen();
pushScreen(_mainScreen);
_renderingSession = RenderingSession.getNewInstance();
// enable javascript
//_renderingSession.getRenderingOptions().setProperty(RenderingOptions.CORE_OPTIONS_GUID, RenderingOptions.JAVASCRIPT_ENABLED, true);
PrimaryResourceFetchThread thread = new PrimaryResourceFetchThread("http://www.google.com", null, null, null, this);
thread.start();
}
public void processConnection(HttpConnection connection, Event e) {
// cancel previous request
if (_currentConnection != null) {
try {
_currentConnection.close();
} catch (IOException e1) {
}
}
_currentConnection = connection;
BrowserContent browserContent = null;
try {
browserContent = _renderingSession.getBrowserContent(connection, this, e);
if (browserContent != null) {
Field field = browserContent.getDisplayableContent();
if (field != null) {
synchronized (Application.getEventLock()) {
_mainScreen.deleteAll();
_mainScreen.add(field);
}
}
browserContent.finishLoading();
}
} catch (RenderingException re) {
} finally {
SecondaryResourceFetchThread.doneAddingImages();
}
}
/**
* @see net.rim.device.api.browser.RenderingApplication#eventOccurred(net.rim.device.api.browser.Event)
*/
public Object eventOccurred(Event event) {
int eventId = event.getUID();
switch (eventId) {
case Event.EVENT_URL_REQUESTED : {
UrlRequestedEvent urlRequestedEvent = (UrlRequestedEvent) event;
String absoluteUrl = urlRequestedEvent.getURL();
HttpConnection conn = null;
PrimaryResourceFetchThread thread = new PrimaryResourceFetchThread(urlRequestedEvent.getURL(),
urlRequestedEvent.getHeaders(),
urlRequestedEvent.getPostData(),
event, this);
thread.start();
break;
} case Event.EVENT_BROWSER_CONTENT_CHANGED: {
// browser field title might have changed update title
BrowserContentChangedEvent browserContentChangedEvent = (BrowserContentChangedEvent) event;
if (browserContentChangedEvent.getSource() instanceof BrowserContent) {
BrowserContent browserField = (BrowserContent) browserContentChangedEvent.getSource();
String newTitle = browserField.getTitle();
if (newTitle != null) {
_mainScreen.setTitle(newTitle);
}
}
break;
} case Event.EVENT_REDIRECT : {
RedirectEvent e = (RedirectEvent) event;
String referrer = e.getSourceURL();
switch (e.getType()) {
case RedirectEvent.TYPE_SINGLE_FRAME_REDIRECT :
// show redirect message
Application.getApplication().invokeAndWait(new Runnable() {
public void run() {
Status.show("You are being redirected to a different page...");
}
});
break;
case RedirectEvent.TYPE_JAVASCRIPT :
break;
case RedirectEvent.TYPE_META :
// MSIE and Mozilla don't send a Referer for META Refresh.
referrer = null;
break;
case RedirectEvent.TYPE_300_REDIRECT :
// MSIE, Mozilla, and Opera all send the original
// request's Referer as the Referer for the new
// request.
Object eventSource = e.getSource();
if (eventSource instanceof HttpConnection) {
referrer = ((HttpConnection)eventSource).getRequestProperty(REFERER);
}
break;
}
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.setProperty(REFERER, referrer);
PrimaryResourceFetchThread thread = new PrimaryResourceFetchThread(e.getLocation(), requestHeaders,null, event, this);
thread.start();
break;
} case Event.EVENT_CLOSE :
// TODO: close the appication
break;
case Event.EVENT_SET_HEADER : // no cache support
case Event.EVENT_SET_HTTP_COOKIE : // no cookie support
case Event.EVENT_HISTORY : // no history support
case Event.EVENT_EXECUTING_SCRIPT : // no progress bar is supported
case Event.EVENT_FULL_WINDOW : // no full window support
case Event.EVENT_STOP : // no stop loading support
default :
}
return null;
}
/**
* @see net.rim.device.api.browser.RenderingApplication#getAvailableHeight(net.rim.device.api.browser.BrowserContent)
*/
public int getAvailableHeight(BrowserContent browserField) {
// field has full screen
return Graphics.getScreenHeight();
}
/**
* @see net.rim.device.api.browser.RenderingApplication#getAvailableWidth(net.rim.device.api.browser.BrowserContent)
*/
public int getAvailableWidth(BrowserContent browserField) {
// field has full screen
return Graphics.getScreenWidth();
}
/**
* @see net.rim.device.api.browser.RenderingApplication#getHistoryPosition(net.rim.device.api.browser.BrowserContent)
*/
public int getHistoryPosition(BrowserContent browserField) {
// no history support
return 0;
}
/**
* @see net.rim.device.api.browser.RenderingApplication#getHTTPCookie(java.lang.String)
*/
public String getHTTPCookie(String url) {
// no cookie support
return null;
}
/**
* @see net.rim.device.api.browser.RenderingApplication#getResource(net.rim.device.api.browser.RequestedResource,
* net.rim.device.api.browser.BrowserContent)
*/
public HttpConnection getResource( RequestedResource resource, BrowserContent referrer) {
if (resource == null) {
return null;
}
// check if this is cache-only request
if (resource.isCacheOnly()) {
// no cache support
return null;
}
String url = resource.getUrl();
if (url == null) {
return null;
}
// if referrer is null we must return the connection
if (referrer == null) {
HttpConnection connection = Utilities.makeConnection(resource.getUrl(), resource.getRequestHeaders(), null);
return connection;
} else {
// if referrer is provided we can set up the connection on a separate thread
SecondaryResourceFetchThread.enqueue(resource, referrer);
}
return null;
}
/**
* @see net.rim.device.api.browser.RenderingApplication#invokeRunnable(java.lang.Runnable)
*/
public void invokeRunnable(Runnable runnable) {
(new Thread(runnable)).run();
}
}
class PrimaryResourceFetchThread extends Thread {
private BrowserFieldSampleApplication _application;
private Event _event;
private byte[] _postData;
private HttpHeaders _requestHeaders;
private String _url;
PrimaryResourceFetchThread(String url, HttpHeaders requestHeaders, byte[] postData,
Event event, BrowserFieldSampleApplication application) {
_url = url;
_requestHeaders = requestHeaders;
_postData = postData;
_application = application;
_event = event;
}
public void run() {
HttpConnection connection = Utilities.makeConnection(_url, _requestHeaders, _postData);
_application.processConnection(connection, _event);
}
}
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