Hi Pekka, Thank you for your helpful feedback. I understand all your points and will take a look to provide a custom logic to weston desktop to support my use-cases.
Best regards, Huy On Thu, Jul 13, 2023 at 5:07 PM Pekka Paalanen <ppaala...@gmail.com> wrote: > On Wed, 12 Jul 2023 21:38:06 +0700 > huy nguyen <huykhacnguyen1...@gmail.com> wrote: > > > Hi all, > > > > I have a Linux system based on weston wayland. I run MPV player and > expect > > it displays a video window at (0,0) position on the screen (top left > corner > > of the display). I already use x11egl backend option to MPV to support a > > fixed position to application but the video window of MPV is displayed at > > an offset (X offset, Y offset) from (0,0) position as shown by the > picture > > below: > > > > [image: IMG_6944.jpg] > > > > Can we have a support from weston wayland to position (0,0) to > application > > running on Xwayland backend? > > Hi, > > I think the gap you see is the window decorations. Weston's X11 Window > Manager (XWM) and demo clients have a fairly wide margin around window > decorations. So the window actually is at (0, 0) already, and the gap > is really just the decorations. > > Maybe you can tell mpv to tell XWM to not decorate the window at all, > or maybe you can make the position slightly negative to close the gap. > > However, if this is a not general use desktop, and kiosk-shell does not > fit, the I'm afraid the only reliable way to get exactly the window > management behaviour you want overall is to fork and modify Weston's > desktop-shell plugin. I mean, maybe you would also like the video > window to stay on top regardless of where the user is touching/clicking. > > Composing an application from multiple independent programs like video > players necessarily requires the window manager to be part of the > application. As window managers are built into Wayland compositors, you > have to change the compositor. In Weston case that happens by loading > a different "shell" plugin. > > Usually if you want an application to embed a video player, you do that > with video playing libraries inside the application, and not by adding > an external video player which then requires careful window management. > > > Thanks, > pq >
