mpv: switch to uosc interface

hosts/common/programs/mpv.nix

@@ -3,22 +3,68 @@
 # - <https://github.com/mpv-player/mpv/wiki>
 # curated mpv mods/scripts/users:
 # - <https://github.com/stax76/awesome-mpv>
-{ ... }:
+{ pkgs, ... }:
 
 {
   sane.programs.mpv = {
+    package = pkgs.wrapMpv pkgs.mpv-unwrapped {
+      scripts = with pkgs.mpvScripts; [
+        uosc
+      ];
+    };
     persist.plaintext = [ ".config/mpv/watch_later" ];
-    # format is <key>=%<length>%<value>
+    fs.".config/mpv/input.conf".symlink.text = ''
+      # let volume keys be interpreted by the system.
+      # this is important for sxmo.
+      VOLUME_UP ignore
+      VOLUME_DOWN ignore
+    '';
     fs.".config/mpv/mpv.conf".symlink.text = ''
-      save-position-on-quit=%3%yes
-      keep-open=%3%yes
+      save-position-on-quit=yes
+      keep-open=yes
+
+      # use uosc instead (for On Screen Controls)
+      osc=no
+      # uosc provides its own seeking/volume indicators, so you also don't need this
+      osd-bar=no
+      # uosc will draw its own window controls if you disable window border
+      border=no
     '';
     fs.".config/mpv/script-opts/osc.conf".symlink.text = ''
       # make the on-screen controls *always* visible
       # unfortunately, this applies to full-screen as well
       # - docs: <https://mpv.io/manual/master/#on-screen-controller-visibility>
+      # if uosc is installed, this file is unused
       visibility=always
     '';
+    fs.".config/mpv/script-opts/uosc.conf".symlink.text = let
+      play_pause_btn = "cycle:play_arrow:pause:no=pause/yes=play_arrow";
+      rev_btn = "command:replay_30:seek -30";
+      fwd_btn = "command:forward_30:seek 30";
+    in ''
+      # docs:
+      # - <https://github.com/tomasklaen/uosc>
+      # - <https://superuser.com/questions/1775550/add-new-buttons-to-mpv-uosc-ui>
+      timeline_style=bar
+      timeline_persistency=paused,audio
+      controls_persistency=paused,audio
+      volume_persistency=audio
+      volume_opacity=0.75
+
+      # speed_persistency=paused,audio
+      # vvv  want a close button?
+      top_bar=always
+      top_bar_persistency=paused
+
+      controls=menu,<video>subtitles,<has_many_audio>audio,<has_many_video>video,<has_many_edition>editions,<stream>stream-quality,space,${rev_btn},${play_pause_btn},${fwd_btn},space,speed:1.0,gap,<video>fullscreen
+
+      text_border=6.0
+      font_bold=yes
+      background_text=ff8080
+      foreground=ff8080
+
+      ui_scale=1.0
+    '';
 
     mime.priority = 200;  # default = 100; 200 means to yield to other apps
     mime.associations."audio/flac" = "mpv.desktop";