[wpe-webkit] Alternate display of two browser instances

[Gérald Gounot]

Hello Adrián,

Thanks for the follow-up!

That's really interesting. I'll look at cog's source code and follow your
issue. :)

Le mar. 15 janv. 2019 à 23:20, Adrian Perez de Castro <aperez at igalia.com> a
écrit :

> Hello Gérald,
>
> On Thu, 20 Dec 2018 14:44:51 +0100, Gérald Gounot <
> gerald.gounot at citymeo.fr> wrote:
>
> > I’m playing with WPE on Raspberry Pi for a while now and it’s awesome.
> WPE
> > developers surely did a great work on it!
>
> Thanks for the kind words :-)
>
> > Now I’m stuck with a double-browser setup and looking for advices about
> it.
> >
> > My goal is to alternatively display two (or more) web pages so that the
> > loading page is hidden while the loaded page is being displayed.
>
> I have had in the back of my mind some thoughts on this, and I have
> recently
> started a refactoring [1] which will be needed to allow supporting multiple
> Web views. Instead of letting the ideas be only in my mind, I have now
> files
> an issue [2] which summarizes them.
>
> > I duplicated the WebKitBrowser.json file to get 2 running browser
> instances
> > and used the Suspend/Resume/Hide/Show commands to switch from one to the
> > other. The problem is that sometimes the commands do not work as
> expected.
> >
> > In order to achieve a perfect control over the browsers displaying, I
> would
> > like to leverage the layer system provided by DispmanX. Unfortunately I
> > cannot find a way to change the layer on which a browser is displayed or
> > get a handle on which I could apply the
> > `vc_dispmanx_element_change_layer()` function.
> >
> > Do you have some ideas on how I could achieve that?
>
> On top of needing the support I have outlined in #77 [2], another roadblock
> here is that as far as I can remember, the code for WPEBackend-rdk contains
> some assumptions which make it impossible to instantiate multiple Web views
> in the same process. That will need fixing as well.
>
> Regards,
>
> -Adrián
>
> ---
> [1] https://github.com/Igalia/cog/tree/platform-refactor-multiviews
> [2] https://github.com/Igalia/cog/issues/77
>


-- 
*Gérald Gounot*
Software Engineer
gerald.gounot at citymeo.fr
<https://twitter.com/Citymeo> <https://www.facebook.com/CityMeo>
<https://www.linkedin.com/company/citymeo>| www.citymeo.fr
<http://citymeo.fr>
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