Bug 97688 – [Chromium] Fix find-in-page corner case for detached frames

• Component: WebKit Misc.
• Status: RESOLVED FIXED

[Leandro Graciá Gil]

The find-in-page code refactoring introduced by 96402 to prevent cases where the final update was not sent made the request reset happen before the shouldScopeMatches check. This check verifies if the view is available and prevented any further processing on detached frames. With the newly introduced changes, one of the operations performed during reset tries to access the page, leading to crashes on detached frame cases. This should be properly checked before trying to access the page.

[Leandro Graciá Gil]

Created attachment 165813 [details]
Patch

[WebKit Review Bot]

Comment on attachment 165813 [details]
Patch

Attachment 165813 [details] did not pass chromium-ews (chromium-xvfb):
Output: http://queues.webkit.org/results/14030525

[Adam Barth]

Comment on attachment 165813 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=165813&action=review

We really need better testing for this feature.  I don't want to hold up this patch over lack of testing, but that's the reason we're having these sorts of troubles.

> Source/WebKit/chromium/src/WebFrameImpl.cpp:1734
> -        if (frame() && frame()->editor()->markedTextMatchesAreHighlighted())
> +        if (frame() && frame->page() && frame()->editor()->markedTextMatchesAreHighlighted())

frame -> frame()

[Leandro Graciá Gil]

Created attachment 165822 [details]
Patch

[Leandro Graciá Gil]

Comment on attachment 165813 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=165813&action=review

>> Source/WebKit/chromium/src/WebFrameImpl.cpp:1734
>> +        if (frame() && frame->page() && frame()->editor()->markedTextMatchesAreHighlighted())
> 
> frame -> frame()

Fixed. Sorry for the nit.

[Leandro Graciá Gil]

(In reply to comment #3)
> (From update of attachment 165813 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=165813&action=review
> 
> We really need better testing for this feature.  I don't want to hold up this patch over lack of testing, but that's the reason we're having these sorts of troubles.

Completely agree. It proved to be trickier than it seems and with corner cases that need proper coverage.

[Adam Barth]

Comment on attachment 165822 [details]
Patch

ok...

[WebKit Review Bot]

Comment on attachment 165822 [details]
Patch

Clearing flags on attachment: 165822

Committed r129666: <http://trac.webkit.org/changeset/129666>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.