nausharipov commented on code in PR #23776:
URL: https://github.com/apache/beam/pull/23776#discussion_r1017097436
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learning/tour-of-beam/frontend/lib/pages/tour/controllers/content_tree.dart:
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@@ -17,33 +17,88 @@
*/
import 'package:flutter/widgets.dart';
+import 'package:get_it/get_it.dart';
import 'package:playground_components/playground_components.dart';
+import '../../../cache/content_tree.dart';
+import '../../../models/group.dart';
import '../../../models/node.dart';
+import '../../../models/unit.dart';
class ContentTreeController extends ChangeNotifier {
String _sdkId;
List<String> _treeIds;
NodeModel? _currentNode;
+ final _contentTreeCache = GetIt.instance.get<ContentTreeCache>();
+ final expandedIds = <String>{};
ContentTreeController({
required String initialSdkId,
List<String> initialTreeIds = const [],
}) : _sdkId = initialSdkId,
- _treeIds = initialTreeIds;
+ _treeIds = initialTreeIds {
+ expandedIds.addAll(initialTreeIds);
+ _contentTreeCache.addListener(_onContentTreeCacheChange);
+ _onContentTreeCacheChange();
+ }
Sdk get sdk => Sdk.parseOrCreate(_sdkId);
String get sdkId => _sdkId;
List<String> get treeIds => _treeIds;
NodeModel? get currentNode => _currentNode;
- void onNodeTap(NodeModel node) {
+ void openNode(NodeModel node) {
+ if (!expandedIds.contains(node.id)) {
+ expandedIds.add(node.id);
+ }
+
if (node == _currentNode) {
return;
}
- _currentNode = node;
- // TODO(alexeyinkin): Set _treeIds from node.
+ if (node is GroupModel) {
+ openNode(node.nodes.first);
Review Comment:
Then state is not updated when needed.
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