[Interest] WebView will someone shed some light please

[Marek.Floriańczyk]

Dnia środa, 18 października 2017 19:16:30 CEST Konstantin Tokarev pisze:
> 18.10.2017, 18:15, "Marek.Floriańczyk" <marek.florianczyk at gmail.com>:
> > Dnia środa, 18 października 2017 17:26:06 CEST Konstantin Tokarev pisze:
> >>  17.10.2017, 17:38, "Marek.Floriańczyk" <marek.florianczyk at gmail.com>:
> >>  > Dnia wtorek, 17 października 2017 16:27:05 CEST Jason H pisze:
> >>  >> > Sent: Wednesday, October 11, 2017 at 12:47 PM
> >>  >> > From: "Marek.Floriańczyk" <marek.florianczyk at gmail.com>
> >>  >> > To: interest at qt-project.org
> >>  >> > Subject: [Interest] WebView will someone shed some light please
> >>  >> >
> >>  >> > Hi all,
> >>  >> >
> >>  >> > I need to ask about QML WebView module.
> >>  >> > I'm working on an mobile application that should display single web
> >>  >> page
> >>  >> > with JS library for webRTC - audio/video transmission.
> >>  >> > It looks like web page is loaded, JS library starts up, but I can't
> >>  >> access > camera and mic.
> >>  >> > With QWebEngineView on Desktop platform it works, this web page
> >> also
> >>  >> works > when displayed it in chrome browser on the phone.
> >>  >> >
> >>  >> > From what I understand WebView is a wrapper around platform native
> >> web >> > browser engine, since Android and iOS supports webRTC what is a
> >> real >> > problem with WebView to support access to microphone and
> >> camera, like >> in
> >>  >> > QWebEngineView: onFeaturePermissionRequested: {
> >>  >> >
> >>  >> > grantFeaturePermission(securityOrigin, feature, true);
> >>  >> >
> >>  >> > }
> >>  >> >
> >>  >> > Is this some functionality that hasn't been written yet, or is it a
> >>  >> deeper > problem, policy or something else.
> >>  >> > This is a real showstopper in my project, so I need to ask is it
> >>  >> possible > to add some functionality to WebView module to support
> >> camera >> and mic > access even with some support from commercial
> >> company and >> later make this > code an open source contribution to
> >> WebView module ? >>
> >>  >> I cringe at the invocation of "show stopper"
> >>  >> You can make an app with with camera and webview and coordinate the
> >>  >> switch
> >>  >> between the two. If you need a full-blown WebUI, then maybe Qt isn't
> >> the >> right choice? I'm thinking React might be better if you're
> >> looking for a >> fully web-driven app.
> >>  >
> >>  > Hi,
> >>  >
> >>  > It's not web-driven app, there are push notifications, in app
> >> purchase,
> >>  > google api authorization and a few more. WebRTC allows me to use some
> >>  > "call center" infrastructure with TURN and STUN servers provided by
> >> VoIP
> >>  > provider. They have commercial JS library where all webRTC
> >> communications > is done. I can access camera no problem, did that for
> >> QR codes, but then > I would have to do all webRTC related stuff myself.
> >> 
> >>  You could use e.g. OpenWebRTC instead of doing all WebRTC stuff yourself
> > 
> > I admit that I'm not an expert. Try to make my living of writing apps in
> > Qt.
> > 
> > However, when I point WebView to opensource webRTC url:
> > https://webrtc.github.io/samples/src/content/getusermedia/gum/
> > 
> > the problem is the same: Can't access camera and microphone.
> > Please explain me, how open source webRTC should be different in that case
> > ?
> > 
> > There is open source webRTC in Qt and I'm sure it works in QWebEngineView.
> > 
> > But since on mobile platform only available component is a WebView in
> > which I can't access camera and microphone what is the difference between
> > opensource webRTC and commercial JS library?
> 
> JS library is inherently limited by capabilities of underlying web engine.
> In case of WebView, this is the same engine as Safari uses, and if you have
> older iOS version without Safari 11, you won't get any WebRTC support in
> your JS.
> 
> OTOH there are native libraries which allow using WebRTC on wider range of
> iOS versions.

Would you mind naming one webRTC library that works under Qt WebView at least 
on Android?

Best Regards
Marek

> 
> > Best Regards
> > Marek
> > 
> >>  > Best Regards
> >>  > Marek
> >>  >
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