Solo para dar seguimiento a esto, es posible, y no es difícil conectar eventos HTML/javascript a los métodos de objetivo-c.
Damien Berrigaud ocurrió una good example de cómo hacerlo mediante el uso de enlaces file://
// Map links starting with file://
// ending with #action
// with the action of the controller if it exists.
//
// Open other links in Safari.
- (BOOL)webView: (UIWebView*)webView shouldStartLoadWithRequest: (NSURLRequest*)request navigationType: (UIWebViewNavigationType)navigationType {
NSString *fragment, *scheme;
if (navigationType == UIWebViewNavigationTypeLinkClicked) {
[webView stopLoading];
fragment = [[request URL] fragment];
scheme = [[request URL] scheme];
if ([scheme isEqualToString: @"file"] && [self respondsToSelector: NSSelectorFromString(fragment)]) {
[self performSelector: NSSelectorFromString(fragment)];
return NO;
}
[[UIApplication sharedApplication] openURL: [request URL]];
}
return YES;
}