+- (void) alertSheet:(UIActionSheet *)sheet buttonClicked:(int)button {
+ NSString *context([sheet context]);
+
+ if ([context isEqualToString:@"challenge"]) {
+ id<NSURLAuthenticationChallengeSender> sender([challenge_ sender]);
+
+ switch (button) {
+ case 1: {
+ NSString *username([[sheet textFieldAtIndex:0] text]);
+ NSString *password([[sheet textFieldAtIndex:1] text]);
+
+ NSURLCredential *credential([NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistenceForSession]);
+
+ [sender useCredential:credential forAuthenticationChallenge:challenge_];
+ } break;
+
+ case 2:
+ [sender cancelAuthenticationChallenge:challenge_];
+ break;
+
+ default:
+ _assert(false);
+ }
+
+ [challenge_ release];
+ challenge_ = nil;
+
+ [sheet dismiss];
+ }
+}
+
+- (void) webView:(WebView *)sender resource:(id)identifier didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge fromDataSource:(WebDataSource *)source {
+ challenge_ = [challenge retain];
+
+ NSURLProtectionSpace *space([challenge protectionSpace]);
+ NSString *realm([space realm]);
+ if (realm == nil)
+ realm = @"";
+
+ UIActionSheet *sheet = [[[UIActionSheet alloc]
+ initWithTitle:realm
+ buttons:[NSArray arrayWithObjects:@"Login", @"Cancel", nil]
+ defaultButtonIndex:0
+ delegate:self
+ context:@"challenge"
+ ] autorelease];
+
+ [sheet setNumberOfRows:1];
+
+ [sheet addTextFieldWithValue:@"" label:@"username"];
+ [sheet addTextFieldWithValue:@"" label:@"password"];
+
+ UITextField *username([sheet textFieldAtIndex:0]); {
+ UITextInputTraits *traits([username textInputTraits]);
+ [traits setAutocapitalizationType:0];
+ [traits setAutocorrectionType:1];
+ }
+
+ UITextField *password([sheet textFieldAtIndex:1]); {
+ UITextInputTraits *traits([password textInputTraits]);
+ [traits setAutocapitalizationType:0];
+ [traits setAutocorrectionType:1];
+ }
+
+ [sheet popupAlertAnimated:YES];
+}
+
+- (NSURLRequest *) webView:(WebView *)sender resource:(id)identifier willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse fromDataSource:(WebDataSource *)source {