[webkit-dev] Fwd: ［GTK］Scroll deficiency

[Srinivas Rao M Hamse]

Hi Gustavo/Xiong,

Is the patch discussed in this thread is acceptable for Gtk+Directfb
platform ? Its very annoying that UI goes bad when we use scroll feature.
Also is there a bug already logged on this issue, Can we log a fresh bug
report if its not done ?

regards,
Srinivas Rao. M <http://msrinirao.blogspot.com>


On Tue, Jun 2, 2009 at 2:27 PM, Xiong <browserwk at gmail.com> wrote:

> Hi,
> I am happy to hear that you solve the issue.
>
> I am also sorry to say i can not search the bug
> report, and never submit the patch with my sloth.
>
> -Xiong
>
> 2009/6/2 Srinivas Rao M Hamse <msrinirao at gmail.com>
>
> Hi Xiong,
>>
>> My platform is WebKiton gtk+directfb. I am noticing that the issue is
>> still present in the current Webkit nightly R-44111 build. I saw your
>> sugested patch :
>>
>>>   In function ChromeClient::scroll()
>>>
>>>     //   gdk_window_move_region(window, moveRegion, delta.width(),
>>> delta.height());
>>>     //   gdk_region_offset(moveRegion, delta.width(), delta.height());
>>>       gdk_window_move_region(window, moveRegion, moveRect.width,
>>> moveRect.height);
>>>       gdk_region_offset(moveRegion, moveRect.width, moveRect.height);
>>>
>>> After applying it, I am not finding the scroll deficiency issue.
>> I wish to know if this fix is working, why is it not landed yet. What is
>> the plan for this bug.
>> What is the bug number for Gtk+Directfb platform.
>>
>> Thanks and regards,
>> Srinivas Rao.M <http://msrinirao.blogspot.com>
>>
>>
>>
>>
>>
>> On Wed, Apr 22, 2009 at 8:04 AM, Xiong <browserwk at gmail.com> wrote:
>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Xiong <browserwk at gmail.com>
>>> Date: Wed, Apr 22, 2009 at 9:42 AM
>>> Subject: Re: [webkit-dev] ［GTK］Scroll deficiency
>>> To: Frank Thomsen <fth at trifork.com>
>>> Cc: Brent Fulgham <bfulgham at gmail.com>
>>>
>>>
>>> Hi Frank
>>>
>>>     I am working on gtk+directfb and Brent working on Window+cairo, and
>>> you ?
>>>
>>>     As you see, Brent and i have two separate bugs, because the
>>> workarounds he described
>>>     do not help me.
>>>
>>>     For now, i have resolved the problem in my platform.
>>>
>>>     The reason why the screen display confusion is that GDK do not
>>> refresh the
>>>     overlapping region when scrolling.
>>>
>>>     So, change the codes as following:
>>>
>>>     In function ChromeClient::scroll()
>>>
>>>     //   gdk_window_move_region(window, moveRegion, delta.width(),
>>> delta.height());
>>>     //   gdk_region_offset(moveRegion, delta.width(), delta.height());
>>>       gdk_window_move_region(window, moveRegion, moveRect.width,
>>> moveRect.height);
>>>       gdk_region_offset(moveRegion, moveRect.width, moveRect.height);
>>>
>>>     After do that, the problem was gone, at least in my
>>> platform(Gtk+directfb).
>>>
>>>     Good luck.
>>>
>>>     -xiong
>>>
>>> 2009/4/17 Frank Thomsen <fth at trifork.com>
>>>
>>> Hi guys
>>>>
>>>> Yesterday I wrote that I had solved the problem - at least on my
>>>> machine. Well, I was wrong. Apparently the redraw-problem only exists in
>>>> release-mode.
>>>> Could you please tell me what you have done to circumvent this problem?
>>>> You have talked about both commenting out code and doing something with the
>>>> ... background..? Whatever it is I cannot find it in the mailing list, so I
>>>> would really appreciate if you could enlighten me. And do you know if this
>>>> has been reported as a bug? Can't seem to find that either...
>>>>
>>>> Thanks in advance!
>>>> Frank
>>>>
>>>> -----Original Message-----
>>>> From: webkit-dev-bounces at lists.webkit.org [mailto:
>>>> webkit-dev-bounces at lists.webkit.org] On Behalf Of Brent Fulgham
>>>> Sent: 31. marts 2009 01:04
>>>> To: xiong
>>>> Cc: webkit-dev at lists.webkit.org
>>>> Subject: Re: [webkit-dev] ［GTK］Scroll deficiency
>>>>
>>>> Hi Xiong,
>>>>
>>>> Thanks for trying these suggestions.
>>>>
>>>> On Sun, Mar 29, 2009 at 8:24 PM, xiong <browserwk at gmail.com> wrote:
>>>> > Brent,
>>>> >
>>>> > In my platform, all the hack as you metioned are valueless.
>>>> >
>>>> > Bad news to me.
>>>> >
>>>> > Now, i only have a clue on cario for the scroll problem.
>>>>
>>>> I think we may have two separate (but perhaps related) bugs, because
>>>> the workarounds I described do not help your problem.  Furthermore,
>>>> the change you suggested (comment out the "if (contentChanged)" test
>>>> in ChromeClient::repaint ()) does not resolve my problem, while it
>>>> does fix yours.
>>>>
>>>> Thanks,
>>>>
>>>> -Brent
>>>> _______________________________________________
>>>> webkit-dev mailing list
>>>> webkit-dev at lists.webkit.org
>>>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> webkit-dev mailing list
>>> webkit-dev at lists.webkit.org
>>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
>>>
>>>
>>
>>
>> --
>> Srinivas Rao M  Hamse
>>
>>
>


-- 
Srinivas Rao M  Hamse
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-dev/attachments/20090602/59f4cf7f/attachment.html>