Clean up media module logic and code. (#380)

* Organized media menu code

* More consolidation

modules/menus/media/components/controls/playpause/helpers.ts

@@ -0,0 +1,4 @@
+import { PlaybackStatus } from 'lib/types/mpris';
+
+export const isValidPlaybackStatus = (status: string): status is PlaybackStatus =>
+    ['playing', 'paused', 'stopped'].includes(status);

modules/menus/media/components/controls/playpause/index.ts

@@ -0,0 +1,43 @@
+const media = await Service.import('mpris');
+import { getPlayerInfo } from '../../helpers';
+import { MprisPlayer } from 'types/service/mpris';
+import { isValidPlaybackStatus } from './helpers';
+import Button from 'types/widgets/button';
+import Icon from 'types/widgets/icon';
+import { Attribute } from 'lib/types/widget';
+import icons from 'modules/icons/index';
+
+export const playPause = (): Button<Icon<Attribute>, Attribute> => {
+    return Widget.Button({
+        hpack: 'center',
+        setup: (self) => {
+            self.hook(media, () => {
+                const foundPlayer = getPlayerInfo();
+                if (foundPlayer === undefined) {
+                    self.class_name = 'media-indicator-control-button play disabled';
+                    return;
+                }
+
+                self.on_primary_click = (): void => {
+                    foundPlayer.playPause();
+                };
+                self.class_name = `media-indicator-control-button play ${foundPlayer.can_play !== null ? 'enabled' : 'disabled'}`;
+            });
+        },
+        child: Widget.Icon({
+            icon: Utils.watch(icons.mpris.paused, media, 'changed', () => {
+                const foundPlayer: MprisPlayer = getPlayerInfo();
+                if (foundPlayer === undefined) {
+                    return icons.mpris['paused'];
+                }
+                const playbackStatus = foundPlayer.play_back_status?.toLowerCase();
+
+                if (playbackStatus && isValidPlaybackStatus(playbackStatus)) {
+                    return icons.mpris[playbackStatus];
+                } else {
+                    return icons.mpris['paused'];
+                }
+            }),
+        }),
+    });
+};