Bug 54398

Summary: DrawingAreaImpl::display handles error cases poorly
Product: WebKit Reporter: Adam Roben (:aroben) <aroben>
Component: Layout and RenderingAssignee: Adam Roben (:aroben) <aroben>
Status: RESOLVED FIXED    
Severity: Normal CC: andersca
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Attachments:
Description Flags
Patch darin: review+

Description Adam Roben (:aroben) 2011-02-14 09:43:09 PST 
DrawingAreaImpl::display handles error cases poorly
Comment 1 Adam Roben (:aroben) 2011-02-14 09:44:20 PST 
Created attachment 82326 [details]
Patch
Comment 2 Darin Adler 2011-02-14 10:13:35 PST 
Comment on attachment 82326 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=82326&action=review

> Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp:410
> +    if (m_layerTreeHost)
> +        return;

This might need a “why” comment.
Comment 3 Anders Carlsson 2011-02-14 10:19:52 PST 
Comment on attachment 82326 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=82326&action=review

> Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp:409
> +    if (m_layerTreeHost)

Please add a comment here, something like "we entered compositing mode" so we shouldn't paint.
Comment 4 Adam Roben (:aroben) 2011-02-14 10:21:27 PST 
Comment on attachment 82326 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=82326&action=review

>> Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp:410
>> +        return;
> 
> This might need a “why” comment.

Added this comment:

    // The layout may have put the page into accelerated compositing mode, in which case the
    // LayerTreeHost is now in charge of displaying.
Comment 5 Adam Roben (:aroben) 2011-02-14 10:27:59 PST 
Committed r78489: <http://trac.webkit.org/changeset/78489>