feat: add initial support for InfiniteQuery

Added new infinite query class with it's own builder widget and integration with query_bowl The `cast` method used in mutation and query are now a mixin instead of BasicOperation property
2022-08-21 20:10:40 +06:00
parent 0c2eae1f11
commit 1452d7d79e
25 changed files with 563 additions and 32 deletions
@@ -0,0 +1,67 @@
+import 'package:fl_query/src/infinite_query.dart';
+import 'package:fl_query/src/models/infinite_query_job.dart';
+import 'package:fl_query/src/query_bowl.dart';
+import 'package:fl_query/src/utils.dart';
+import 'package:flutter/widgets.dart';
+
+class InfiniteQueryBuilder<T extends Object, Outside, PageParam extends Object>
+    extends StatefulWidget {
+  final Function(
+    BuildContext context,
+    InfiniteQuery<T, Outside, PageParam> query,
+  ) builder;
+  final InfiniteQueryJob<T, Outside, PageParam> job;
+  final Outside externalData;
+  InfiniteQueryBuilder({
+    required this.job,
+    required this.builder,
+    required this.externalData,
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  State<InfiniteQueryBuilder<T, Outside, PageParam>> createState() =>
+      _InfiniteQueryBuilderState<T, Outside, PageParam>();
+}
+
+class _InfiniteQueryBuilderState<T extends Object, Outside,
+        PageParam extends Object>
+    extends State<InfiniteQueryBuilder<T, Outside, PageParam>> {
+  InfiniteQuery<T, Outside, PageParam>? infiniteQuery;
+  late QueryBowl queryBowl;
+  late final ValueKey<String> uKey;
+
+  @override
+  void initState() {
+    super.initState();
+    uKey = ValueKey<String>(uuid.v4());
+    WidgetsBinding.instance.addPostFrameCallback((_) => init());
+  }
+
+  void init([T? previousData]) async {
+    final bowl = QueryBowl.of(context);
+    infiniteQuery = bowl.addInfiniteQuery<T, Outside, PageParam>(
+      widget.job,
+      externalData: widget.externalData,
+      key: uKey,
+    );
+    // final hasExternalDataChanged = infiniteQuery!.externalData != null &&
+    //     infiniteQuery!.prevUsedExternalData != null &&
+    //     !isShallowEqual(infiniteQuery!.externalData!, infiniteQuery!.prevUsedExternalData!);
+    // if (infiniteQuery!.fetched && hasExternalDataChanged) {
+    //   await infiniteQuery!.refetch();
+    // } else if (!infiniteQuery!.fetched) {
+    await infiniteQuery!.fetch();
+    // }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    queryBowl = QueryBowl.of(context);
+    final latestInfiniteQuery = queryBowl
+            .getInfiniteQuery<T, Outside, PageParam>(widget.job.queryKey) ??
+        infiniteQuery;
+    if (latestInfiniteQuery == null) return Container();
+    return widget.builder(context, latestInfiniteQuery);
+  }
+}