remove method

@override Future<void> remove(int index, { bool synchronized = true, })

Removes the Media at specified index from the Player's playlist.

Implementation

@override
Future<void> remove(int index, {bool synchronized = true}) {
  Future<void> function() async {
    if (disposed) {
      throw AssertionError('[Player] has been disposed');
    }
    await waitForPlayerInitialization;
    await waitForVideoControllerInitializationIfAttached;

    // If we remove the last item in the playlist while playlist mode is none or single, then playback will stop.
    // In this situation, the playlist doesn't seem to be updated, so we manually update it.
    if (state.playlist.index == index &&
        state.playlist.medias.length - 1 == index &&
        [
          PlaylistMode.none,
          PlaylistMode.single,
        ].contains(state.playlistMode)) {
      state = state.copyWith(
        // Allow playOrPause /w state.completed code-path to play the playlist again.
        completed: true,
        playlist: state.playlist.copyWith(
          medias: state.playlist.medias.sublist(
            0,
            state.playlist.medias.length - 1,
          ),
          index: state.playlist.medias.length - 2 < 0
              ? 0
              : state.playlist.medias.length - 2,
        ),
      );
      if (!completedController.isClosed) {
        completedController.add(true);
      }
      if (!playlistController.isClosed) {
        playlistController.add(state.playlist);
      }
    }

    final command = 'playlist-remove $index'.toNativeUtf8();
    mpv.mpv_command_string(
      ctx,
      command.cast(),
    );
    calloc.free(command.cast());
  }

  if (synchronized) {
    return lock.synchronized(function);
  } else {
    return function();
  }
}