[webkit-dev] [GTK]Scroll deficiency

robert browserwk at gmail.com
Thu Mar 26 22:21:42 PDT 2009

I think maybe webkit does not refresh the page when scroll.

So, i trace the flow of webkit when "scroll" event fired.

In function

If i mask
    // if (contentChanged)

all the problem is gone when scroll page.

Even though the page refresh ok when scroll follow upon, but refresh
the page everytime when scroll, i think it's inefficiency.

Any other better way to resolve this problem ?

Also i want to know why the contentChanged variable is false when
scroll the page, actually the content of the page was changed when scroll. I
am confused.

Appreciate any clues!



2009/3/27 browserwk <browserwk at gmail.com>

> Dear all:
> I am able to run webkit over directfb backend on arm platform - using
> GtkLauncher .
> The problem I face is that when I open
> http://www.google.com/intl/en/privacy.html using this browser and scroll
> the page; it results the visual area is not updated when scrolling, and
> the screen display confusion.
> Any ideas where to look to fix this issue ?
> Appreciate any clues~
> FYI:
> [Following address are the screenshots]
> Render OK when not scroll:
> http://picasaweb.google.com/lh/photo/ybhIcahTEgsfBmMzXM13-g?feat=directlink
> Render error when scroll:
> http://picasaweb.google.com/lh/photo/0B8fi1ZTZ7hWH0S86a5RJA?feat=directlink
> http://picasaweb.google.com/lh/photo/_ScHyJBOmJ8-xbRB_aZ2NQ?feat=directlink
> http://picasaweb.google.com/lh/photo/Ael-gWdHEVnEtu_qbMFOZw?feat=directlink
> BTW:
> I am using following version of packages and running DirectFB without
> any acceleration on my embeded target.
> WebKit-r40777
> gtk+-2.12.12
> cairo-1.4.14
> DirectFB-1.2.6
> Thanks.
> -xiong
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