How can my iPhone Objective-C code get notified of Javascript errors in a UIWebView?

Question

I need to have my iPhone Objective-C code catch Javascript errors in a UIWebView. That includes uncaught exceptions, syntax errors when loading files, undefined variable re

Answer 1

I have done this in firmware 1.x but not 2.x. Here is the code I used in 1.x, it should at least help you on your way.

// Dismiss Javascript alerts and telephone confirms
/*- (void)alertSheet:(UIAlertSheet*)sheet buttonClicked:(int)button
{
    if (button == 1)
    {
        [sheet setContext: nil];
    }

    [sheet dismiss];
}*/

// Javascript errors and logs
- (void) webView: (WebView*)webView addMessageToConsole: (NSDictionary*)dictionary
{
    NSLog(@"Javascript log: %@", dictionary);
}

// Javascript alerts
- (void) webView: (WebView*)webView runJavaScriptAlertPanelWithMessage: (NSString*) message initiatedByFrame: (WebFrame*) frame
{
    NSLog(@"Javascript Alert: %@", message);

    UIAlertSheet *alertSheet = [[UIAlertSheet alloc] init];
    [alertSheet setTitle: @"Javascript Alert"];
    [alertSheet addButtonWithTitle: @"OK"];
    [alertSheet setBodyText:message];
    [alertSheet setDelegate: self];
    [alertSheet setContext: self];
    [alertSheet popupAlertAnimated:YES];
}