How to expand UIWebView on click

I'm working on an Ad SDK for iOS and I have a narrow banner-size UIWebView that displays a complex HTML that I receive from an ad server. I don't know anything about structure of that HTML (i.e. it may change).

At some point user taps on that UIWebView, which causes the content of that ad to become full-screen, so I need to expand my UIWebView and show it in the modal view (via presentModalViewController).

Is there a way to either take my existing UIWebView and reattach it to my new modal view wh开发者_如何学Goile keeping its state (whatever user clicked on)?

Or alternatively how can I simulate touch on UIWebView, since I could create new UIWebView in my modal view and load the same HTML, but then I need to re-create its state after initial tap by somehow sending a tap event programmatically.

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Use UITapGestureRecognizer, make that WebView full-screen and move to the front layer.