zefyr/packages/zefyr/lib/src/extended_assets_picker/src/widget/asset_picker_viewer.dart

part of ct_assets_picker;

class ExtendedAssetPickerViewer<A, P> extends AssetPickerViewer<A, P> {
  const ExtendedAssetPickerViewer({
    Key key,
    @required AssetPickerViewerBuilderDelegate<A, P> builder,
  }) : super(key: key, builder: builder);

  static Future<List<AssetEntity>> pushToViewer(
    BuildContext context, {
    int currentIndex = 0,
    @required List<AssetEntity> previewAssets,
    @required ThemeData themeData,
    List<int> previewThumbSize,
    List<AssetEntity> selectedAssets,
    DefaultAssetPickerProvider selectorProvider,
    SpecialPickerType specialPickerType,
  }) async {
    try {
      final Widget viewer =
          ChangeNotifierProvider<DefaultAssetPickerProvider>.value(
        value: selectorProvider,
        child: AssetPickerViewer<AssetEntity, AssetPathEntity>(
          builder: ExtendedAssetPickerViewerBuilderDelegate(
            currentIndex: currentIndex,
            previewAssets: previewAssets,
            provider: selectedAssets != null
                ? AssetPickerViewerProvider<AssetEntity>(selectedAssets)
                : null,
            themeData: themeData,
            previewThumbSize: previewThumbSize,
            specialPickerType: specialPickerType,
            selectedAssets: selectedAssets,
            selectorProvider: selectorProvider,
          ),
        ),
      );
      final PageRouteBuilder<List<AssetEntity>> pageRoute =
          PageRouteBuilder<List<AssetEntity>>(
        pageBuilder: (
          BuildContext context,
          Animation<double> animation,
          Animation<double> secondaryAnimation,
        ) {
          return viewer;
        },
        transitionsBuilder: (
          BuildContext context,
          Animation<double> animation,
          Animation<double> secondaryAnimation,
          Widget child,
        ) {
          return FadeTransition(opacity: animation, child: child);
        },
      );
      final List<AssetEntity> result =
          await Navigator.of(context).push<List<AssetEntity>>(pageRoute);
      return result;
    } catch (e) {
      realDebugPrint('Error when calling assets picker viewer: $e');
      return null;
    }
  }
}