Add tooltips to several buttons

lib/player_ui/app_bar.dart

@@ -17,6 +17,7 @@ class PlayerUIAppBar {
       actions: [
         IconButton(
           icon: const Icon(Icons.copy_all),
+          tooltip: 'Copy playlist to clipboard',
           onPressed: () {
             final state = BlocProvider.of<PlayerStateBloc>(context).state;
             if (state != null) {

lib/player_ui/body.dart

@@ -84,6 +84,7 @@ class PlayerUIBody extends StatelessWidget {
             icon: playerState.isPlaying && item.current
                 ? const Icon(Icons.pause)
                 : const Icon(Icons.play_arrow),
+            tooltip: 'Play this track',
             onPressed: () {
               BlocProvider.of<ConnectionStateBloc>(context)
                   .add(Command.playlistGoto(i));
@@ -96,11 +97,13 @@ class PlayerUIBody extends StatelessWidget {
         children: [
           IconButton(
             icon: const Icon(Icons.copy),
+            tooltip: 'Copy uri to clipboard',
             onPressed: () =>
                 Clipboard.setData(ClipboardData(text: item.filename)),
           ),
           IconButton(
             icon: const Icon(Icons.delete_forever),
+            tooltip: 'Remove from playlist',
             color: Colors.redAccent,
             onPressed: () {
               BlocProvider.of<ConnectionStateBloc>(context)
@@ -138,6 +141,7 @@ class PlayerUIBody extends StatelessWidget {
         SizedBox.fromSize(size: const Size(10, 0)),
         IconButton(
           icon: const Icon(Icons.send),
+          tooltip: 'Add link to playlist',
           onPressed: () {
             BlocProvider.of<ConnectionStateBloc>(context)
                 .add(Command.load(_textController.text));
@@ -146,6 +150,7 @@ class PlayerUIBody extends StatelessWidget {
         ),
         IconButton(
           icon: const Icon(Icons.playlist_add),
+          tooltip: 'Add many links',
           onPressed: () async {
             final blocProvider = BlocProvider.of<ConnectionStateBloc>(context);
             final links = await _showAddManyLinksDialog(context);

lib/player_ui/bottom_bar.dart

@@ -31,6 +31,7 @@ class PlayerUIBottomBar extends StatelessWidget {
         children: [
           IconButton(
             icon: const Icon(Icons.skip_previous),
+            tooltip: 'Skip to previous track',
             onPressed: () {
               BlocProvider.of<ConnectionStateBloc>(context)
                   .add(Command.playlistPrevious());
@@ -43,6 +44,7 @@ class PlayerUIBottomBar extends StatelessWidget {
                 icon: (playerState.isPlaying)
                     ? const Icon(Icons.pause)
                     : const Icon(Icons.play_arrow),
+                tooltip: (playerState.isPlaying) ? 'Pause' : 'Play',
                 onPressed: () {
                   BlocProvider.of<ConnectionStateBloc>(context)
                       .add(Command.togglePlayback());
@@ -52,6 +54,7 @@ class PlayerUIBottomBar extends StatelessWidget {
           ),
           IconButton(
             icon: const Icon(Icons.skip_next),
+            tooltip: 'Skip to next track',
             onPressed: () {
               BlocProvider.of<ConnectionStateBloc>(context)
                   .add(Command.playlistNext());
@@ -141,6 +144,7 @@ class PlayerUIBottomBar extends StatelessWidget {
             buildProps: (p) => [p.subtitleTracks],
             builder: (context, playerState) => PopupMenuButton(
               icon: const Icon(Icons.subtitles),
+              tooltip: 'Select subtitle track',
               enabled: playerState.subtitleTracks.isNotEmpty,
               itemBuilder: (context) {
                 return playerState.subtitleTracks
@@ -160,6 +164,7 @@ class PlayerUIBottomBar extends StatelessWidget {
             buildProps: (p) => [p.isLooping],
             builder: (context, playerState) => IconButton(
               icon: const Icon(Icons.repeat),
+              tooltip: 'Toggle playlist looping',
               isSelected: playerState.isLooping,
               onPressed: () {
                 BlocProvider.of<ConnectionStateBloc>(context)
@@ -169,6 +174,7 @@ class PlayerUIBottomBar extends StatelessWidget {
           ),
           IconButton(
             icon: const Icon(Icons.shuffle),
+            tooltip: 'Shuffle playlist',
             onPressed: () {
               BlocProvider.of<ConnectionStateBloc>(context)
                   .add(Command.shuffle());
@@ -176,6 +182,8 @@ class PlayerUIBottomBar extends StatelessWidget {
           ),
           IconButton(
             icon: const Icon(Icons.delete_forever),
+            tooltip: 'Clear playlist',
+            color: Colors.redAccent,
             onPressed: () {
               BlocProvider.of<ConnectionStateBloc>(context)
                   .add(Command.playlistClear());