buildPlayStateSlot function

Widget buildPlayStateSlot(SlotBuildContext ctx, double width, double height)

构建播放状态插槽的默认实现。 Builds the default play state slot content.

监听播放状态、加载状态和错误信息，显示加载中或错误状态的 UI。 Listens to play state, loading state, and error info; displays loading or error state UI.

Implementation

Widget buildPlayStateSlot(
  SlotBuildContext ctx,
  double width,
  double height,
) {
  // 监听播放状态、错误码、错误信息等变化
  Listenable listenable = Listenable.merge([
    ctx.controller.playStateNotifier,
    ctx.controller.playErrorNotifier,
    ctx.controller.isLoadingStateNotifier,
  ]);
  return ListenableBuilder(
    listenable: listenable,
    builder: (context, _) {
      // 获取播放状态
      final playState = ctx.controller.playStateNotifier.value;
      final isLoadingState = ctx.controller.isLoadingStateNotifier.value;

      if (!playState.shouldBuildErrorWidget) {
        if (isLoadingState) {
          return PlayStateWidget(
            widgetStatus: PlayStatus.loading,
            statusCode: PlayerI18n.t(PlayerI18nKeys.statusLoading),
          );
        } else {
          // 如果不需要构建播放状态视图，则返回空组件
          return const SizedBox.shrink();
        }
      }

      // 获取错误码和错误信息
      final playError = ctx.controller.playErrorNotifier.value;
      final errorCode = playError?.keys.firstOrNull;
      final errorMsg = playError?.values.firstOrNull;

      return PlayStateWidget(
        widgetStatus: PlayStatus.error,
        statusCode: errorCode?.toString(),
        statusMessage: errorMsg,
      );
    },
  );
}