[Webkit-unassigned] [Bug 70117] Expose HTMLCanvasElement supportsContext

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri May 31 15:52:42 PDT 2013


https://bugs.webkit.org/show_bug.cgi?id=70117





--- Comment #23 from Ruth Fong <ruthiecftg at gmail.com>  2013-05-31 15:51:13 PST ---
(From update of attachment 203462)
View in context: https://bugs.webkit.org/attachment.cgi?id=203462&action=review

>>>> Source/WebCore/bindings/js/JSHTMLCanvasElementCustom.cpp:123
>>>> +            if (jsAttrs->hasProperty(exec, preserveDrawingBuffer))
>>> 
>>> These toBooleans() can all throw exceptions, so we should probably be checking for exceptions.  We should also make sure we are testing all those cases as well.  Can this use a JSDictionary to simplify things?
>> 
>> Right now JSHTMLCanvasElement::getContext is implemented like this (without exception handling) - should I still add exception handling?
> 
> You should add the checking, yes.

I tried wrapping one of the toBoolean statements in a try-catch and got an error in Xcode saying that exceptions are disabled; not sure where this is set/what's it's scope.

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