[webkit-help] Mobile support in WinCairo port

[Benjamin Poulain]

On 1/23/15 10:12 PM, Brent Fulgham wrote:
> I’ve been running through the full set of Windows layout tests, and have found that several of the ViewPort tests fail.
>
> It’s likely that there are some small bits of the IWebView/IWebFrame stuff that is not fully connected to the WebCore viewport pieces. It might not be much work to fix it.
>
> A great first step would be to take a look at the LayoutTests viewport tests and figure out why they don’t work. These live in ‘LayoutTests/fast/viewport’ and are currently skipped on Windows.
Those tests are legacy stuff added by Nokia. I am not sure if anyone 
actually runs them.

They are only useful for mobile, Windows or OS X are not supposed to 
pass fast/viewport.
> Thanks,
>
> -Brent
>
>
>> On Jan 23, 2015, at 8:18 PM, Benjamin Poulain <benjamin at webkit.org> wrote:
>>
>> On 1/23/15 7:41 PM, Luc R. wrote:
>>> I've been trying to run a few examples of mobile web pages using
>>> WinCairo port, and often seeing that content is not re-sized to fit the
>>> window like on a smartphone screen. I am setting the window size to be
>>> the analog of mobile viewport size (e.g. 320x568) + adding mobile user
>>> agent.
>>> In this setup seems like viewport html tag is not honored and the
>>> default behavior is different from a mobile device. Could anyone advice
>>> on the architecture of how device-specific rendering is handled in
>>> WebKit, should it be implemented on per-port basis, and WinCairo missing
>>> this, or am I just missing something obvious?
>> Layout on touch devices works quite differently. The only port that uses that is iOS WebKit.
>>
>> Basically the viewport on touch devices is split in 3:
>> -A layout viewport.
>> -A visual viewport.
>> -A fixed element viewport.
>>
>> The only port that uses that is iOS.
>>
>> Benjamin
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