buildTopBarSlot function

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

构建顶部栏插槽的默认实现。 Builds the default top bar slot content.

监听视频标题，提供返回、设置、下载、截图等功能按钮。 Listens to video title; provides back, settings, download, and snapshot buttons.

Implementation

Widget buildTopBarSlot(
  SlotBuildContext ctx,
  double width,
  double height,
) {
  return ListenableBuilder(
    listenable: ctx.controller.videoTitleNotifier,
    builder: (context, _) {
      return TopBarWidget(
        title: ctx.controller.videoTitleNotifier.value ?? "",
        animationManager: ctx.animationManager,
        onBackPressed: ctx.onBackPress,
        onSettingsPressed: () {
          // 统一通过 controller 的事件计数器触发
          ctx.controller.requestSettingPanel();
        },
        downloadVisible: _isDownloadVisible(ctx.controller),
        // 下载按钮点击处理
        onDownloadPressed: ctx.controller.startVideoDownload,
        // 启用截图功能
        onSnapshotPressed: () => _onSnapshotPressed(ctx.controller),
      );
    },
  );
}