[webkit-help] Mobile support in WinCairo port

Benjamin Poulain benjamin at webkit.org
Fri Jan 23 20:18:38 PST 2015

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.


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