[Webkit-unassigned] [Bug 183230] Web Automation: script evaluations via WebDriver should have a user gesture indicator

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=183230

--- Comment #2 from Brian Burg <bburg at apple.com> ---
(In reply to Brian Burg from comment #0)
> Some JS/DOM APIs only work require a user gesture indicator. Since there is
> no real user input when running via WebDriver, these APIs can only be tested
> if WebDriver code has a synthetic user gesture indicator, or explicit checks
> for a user gesture indicator should also allow usage iff
> page->isControlledByAutomation().
> 
> It would be nice to do the first approach since only one source location is
> needed. However, it's possible via WebDriver to evaluate "async" JavaScript
> which calls a completion handler some arbitrary amount of time later. The
> naive approach to set a user gesture indicator would only allow
> gesture-requiring API calls that happen synchronously.
> 
> So, we need to either set a user gesture indicator using non-RAII code, or
> audit every single check and add || page->isControlledByAutomation() to the
> condition.

Actually, it seems like DOMTimer and some other async code will forward the user gesture, so maybe using the UserGestureIndicator when evaluating the JS snippet would be enough.

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