[media] Tangram does not mpris interface for audio/video playback

[rohmishra]

When playing media tangram does not provide mpris MediaPlayer2 interface for media making it impossible to use with hardware keys / notification / Remote Control.

Also reported on Gnome Web

Tangram version 1.3.1

Linux distribution Manjaro Linux

Flatpak version 1.10.1

Desktop environment Gnome Shell 3.38 Wayland

[sonnyp]

There is a WebkitGTK bug for this https://bugs.webkit.org/show_bug.cgi?id=219341

It should also be possible but not trivial to achieve without by injecting some JavaScript and chatting with the MPRIS interface.

[philn]

This should be supported starting from WebKitGTK 2.36

[sonnyp]

https://gitlab.gnome.org/GNOME/epiphany/-/issues/1453