[webkit-dev] WebKit partial rendering issue

Erik Walter erik.walter at ebooktechnologies.com
Thu Nov 27 07:58:25 PST 2008

I've seen similar issues on a non-DirectFB port, but it turned out to  
be related to a bug in the ScrollView::paint() method.  It wasn't  
properly clipping the drawing and when Google was blinking the cursor  
in the text box, it ends up erasing the whole window instead of just  
the inner textbox.  Anything that forces a redraw of the widget, of  
course, fixes it as it will then render the whole area, not just the  
cursor.  I saw it when going to www.apple.com and watching the  
updating news area, the headlines change and the title "Hot New  
Headlines" would get erased everytime it updated.

dunno if that's helpful or not.

On Nov 27, 2008, at 9:35 AM, Srinivas Rao M Hamse wrote:

> Hi,
> I am using WebKit+Gtk on DirectFB 1.2.0  ported on an arm platform.  
> I am noticing that the render of text input widget is not complete.  
> Attaching a snapshot of google page. In this google text input text  
> box in not drawn. Also seen this issue while rendering other widgets  
> also. WebKit misses some of them at first go. It slowly draws as and  
> when that part of the screen/widget gets refreshed(say by pressing  
> TAB keys)
> Any idea how to fix this issue ?
> regards,
> Srinivas Rao M.
> -- 
> Srinivas Rao M  Hamse
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> webkit-dev at lists.webkit.org
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