Add panel script for media player status via mpris

.config/xfce4/panel/scripts/mpris-status.py

@@ -0,0 +1,101 @@
+#!/usr/bin/env python3
+
+from textwrap import shorten
+from typing import Optional
+
+from dbus.exceptions import DBusException
+from mpris2 import Player, get_players_uri
+from mpris2.types import Metadata_Map
+from mpris2.utils import get_player_id_from_uri
+
+MAX_OUTPUT = 80
+
+
+class MagicMetadata:
+    _metadata: Metadata_Map
+
+    def __init__(self, metadata: Metadata_Map):
+        self._metadata = metadata
+
+    def __getattr__(self, attr: str):
+        """lookup attributes via pre-defined constants in Metadata_Map"""
+        return self._metadata.get(getattr(self._metadata, attr.upper()))
+
+
+def format_duration(duration: Optional[int]):
+    if duration is None:
+        return "?"
+
+    hours, rem = divmod(duration // 1000 // 1000, 3600)
+    minutes, seconds = divmod(rem, 60)
+    if hours:
+        return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
+    else:
+        return f"{minutes:02d}:{seconds:02d}"
+
+
+def format_player(player: Player, short: bool = False) -> str:
+    metadata = MagicMetadata(player.Metadata)
+    try:
+        position = player.Position.real
+    except DBusException:
+        position = None
+
+    if position is None and metadata.length is None:
+        position_and_length = ""
+    else:
+        position_and_length = f" <tt>{format_duration(position) }/{ format_duration(metadata.length) }</tt>"
+
+    if short:
+        status = ""
+    else:
+        status = {
+            "Playing": "▶",
+            "Paused": "⏸️",
+            "Stopped": "⏹️",
+        }.get(player.PlaybackStatus, "❓") + " "
+
+    artist = ",".join(metadata.artist)
+    album = metadata.album
+    title = metadata.title
+    if short:
+        # TODO: could be a bit more clever here to use the whole space
+        artist = shorten(artist, 40, placeholder="…")
+        album = shorten(album, 40, placeholder="…")
+        title = shorten(title, 60, placeholder="…")
+
+    if album:
+        album = f" / <i>{ album }</i>"
+
+    return f"{status}{ artist }{ album } | { title }{ position_and_length }"
+
+
+def status_key(player: Player) -> int:
+    return {
+        "Playing": 0,
+        "Paused": 1,
+        "Stopped": 2,
+    }.get(player.PlaybackStatus, 100)
+
+
+def status_icon(player: Player) -> str:
+    return {
+        "Playing": "exaile-play",
+        "Paused": "exaile-pause",
+        "Stopped": "media-player-banshee-stopped",
+    }.get(player.PlaybackStatus, "unknown")
+
+
+players = [Player(dbus_interface_info={"dbus_uri": uri}) for uri in get_players_uri()]
+
+players.sort(key=status_key)
+active_player_id = get_player_id_from_uri(players[0]._dbus_interface_info.uri)
+print(
+    "<txt>"
+    + (f"[{ len(players) }] " if len(players) > 1 else "")
+    + format_player(players[0], short=True)
+    + "</txt>"
+)
+print(f"<txtclick>playerctl --player={ active_player_id } play-pause</txtclick>")
+print(f"<icon>{ status_icon(players[0]) }</icon>")
+print("<tool>" + "\n".join(format_player(player) for player in players) + "</tool>")