/**
* Processes a new HttpConnection object to instantiate a new browser Field (aka WebView) object,
* and then resets the screen to the newly-created Field.
*
* @param connection
* @param e
*/
public void processConnection(HttpConnection connection, Event e) {
// Cancel previous request.
if (_currentConnection != null) {
try {
_currentConnection.close();
} catch (IOException e1) {
}
}
// Clear out pending responses.
synchronized (pendingResponses) {
pendingResponses.removeAllElements();
}
// Cancel any XHRs happening.
commandManager.stopXHR();
_currentConnection = connection;
BrowserContent browserContent = null;
Field field = null;
try {
browserContent = _renderingSession.getBrowserContent(connection, this, e);
if (browserContent != null) {
field = browserContent.getDisplayableContent();
if (field != null) {
synchronized (Application.getEventLock()) {
_mainScreen.deleteAll();
_mainScreen.add(field);
}
}
browserContent.finishLoading();
}
} catch (RenderingException re) {
} finally {
browserContent = null;
field = null;
// Manually call the garbage collector to clean up all of leftover objects and free up the
// nulled object handles.
System.gc();
}
}
public Object eventOccurred(final Event event) {
int eventId = event.getUID();
switch (eventId) {
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(REDIRECT_MSG);
}
});
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);
}
eventSource = null;
break;
}
// Create the request, populate header with referrer and fire off the request.
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.setProperty(REFERER, referrer);
PrimaryResourceFetchThread thread =
new PrimaryResourceFetchThread(e.getLocation(), requestHeaders, null, event, this);
thread.start();
e = null;
referrer = null;
requestHeaders = null;
break;
}
case Event.EVENT_URL_REQUESTED:
{
UrlRequestedEvent urlRequestedEvent = (UrlRequestedEvent) event;
String url = urlRequestedEvent.getURL();
HttpHeaders header = urlRequestedEvent.getHeaders();
PrimaryResourceFetchThread thread =
new PrimaryResourceFetchThread(
url, header, urlRequestedEvent.getPostData(), event, this);
thread.start();
urlRequestedEvent = null;
url = null;
header = null;
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) {
synchronized (getAppEventLock()) {
_mainScreen.setTitle(newTitle);
}
}
browserField = null;
newTitle = null;
}
browserContentChangedEvent = null;
break;
}
case Event.EVENT_CLOSE:
// TODO: close the application
break;
case Event.EVENT_SET_HEADER: // No cache support.
case Event.EVENT_SET_HTTP_COOKIE:
String cookie = ((SetHttpCookieEvent) event).getCookie();
if (cookie.startsWith(PHONEGAP_PROTOCOL)) {
String response = commandManager.processInstruction(cookie);
if ((response != null) && (response.trim().length() > 0)) {
pendingResponses.addElement(response);
}
response = null;
}
cookie = null;
break;
case Event.EVENT_HISTORY: // TODO: No history support.. but we added our own history stack
// implementation in ConnectionManager. Can we hook it up - then we'd have
// access to window.history :o
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;
}