opt search topic

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/common/widgets/draggable_scrollable_sheet.dart

@@ -404,81 +404,6 @@ class DraggableScrollableSheet extends StatefulWidget {
       _DraggableScrollableSheetState();
 }
 
-/// A [Notification] related to the extent, which is the size, and scroll
-/// offset, which is the position of the child list, of the
-/// [DraggableScrollableSheet].
-///
-/// [DraggableScrollableSheet] widgets notify their ancestors when the size of
-/// the sheet changes. When the extent of the sheet changes via a drag,
-/// this notification bubbles up through the tree, which means a given
-/// [NotificationListener] will receive notifications for all descendant
-/// [DraggableScrollableSheet] widgets. To focus on notifications from the
-/// nearest [DraggableScrollableSheet] descendant, check that the [depth]
-/// property of the notification is zero.
-///
-/// When an extent notification is received by a [NotificationListener], the
-/// listener will already have completed build and layout, and it is therefore
-/// too late for that widget to call [State.setState]. Any attempt to adjust the
-/// build or layout based on an extent notification would result in a layout
-/// that lagged one frame behind, which is a poor user experience. Extent
-/// notifications are used primarily to drive animations. The [Scaffold] widget
-/// listens for extent notifications and responds by driving animations for the
-/// [FloatingActionButton] as the bottom sheet scrolls up.
-class DraggableScrollableNotification extends Notification
-    with ViewportNotificationMixin {
-  /// Creates a notification that the extent of a [DraggableScrollableSheet] has
-  /// changed.
-  ///
-  /// All parameters are required. The [minExtent] must be >= 0. The [maxExtent]
-  /// must be <= 1.0. The [extent] must be between [minExtent] and [maxExtent].
-  DraggableScrollableNotification({
-    required this.extent,
-    required this.minExtent,
-    required this.maxExtent,
-    required this.initialExtent,
-    required this.context,
-    this.shouldCloseOnMinExtent = true,
-  })  : assert(0.0 <= minExtent),
-        assert(maxExtent <= 1.0),
-        assert(minExtent <= extent),
-        assert(minExtent <= initialExtent),
-        assert(extent <= maxExtent),
-        assert(initialExtent <= maxExtent);
-
-  /// The current value of the extent, between [minExtent] and [maxExtent].
-  final double extent;
-
-  /// The minimum value of [extent], which is >= 0.
-  final double minExtent;
-
-  /// The maximum value of [extent].
-  final double maxExtent;
-
-  /// The initially requested value for [extent].
-  final double initialExtent;
-
-  /// The build context of the widget that fired this notification.
-  ///
-  /// This can be used to find the sheet's render objects to determine the size
-  /// of the viewport, for instance. A listener can only assume this context
-  /// is live when it first gets the notification.
-  final BuildContext context;
-
-  /// Whether the widget that fired this notification, when dragged (or flung)
-  /// to minExtent, should cause its parent sheet to close.
-  ///
-  /// It is up to parent classes to properly read and handle this value.
-  final bool shouldCloseOnMinExtent;
-
-  @override
-  void debugFillDescription(List<String> description) {
-    super.debugFillDescription(description);
-    description.add(
-      'minExtent: $minExtent, extent: $extent, maxExtent: $maxExtent, initialExtent: $initialExtent',
-    );
-  }
-}
-
 /// Manages state between [_DraggableScrollableSheetState],
 /// [_DraggableScrollableSheetScrollController], and
 /// [_DraggableScrollableSheetScrollPosition].

lib/pages/dynamics_create/view.dart

@@ -614,7 +614,7 @@ class _CreateDynPanelState extends CommonPublishPageState<CreateDynPanel> {
         maxChildSize: 1,
         initialChildSize: _offset == 0 ? 0.65 : 1,
         initialScrollOffset: _offset,
-        snapSizes: [0.65],
+        snapSizes: const [0.65],
         builder: (context, scrollController) => SelectTopicPanel(
           scrollController: scrollController,
           callback: (offset) => _offset = offset,

lib/pages/dynamics_select_topic/controller.dart

@@ -8,6 +8,7 @@ import 'package:get/get.dart';
 
 class SelectTopicController
     extends CommonListController<TopicPubSearchData, TopicPubSearchItem> {
+  final focusNode = FocusNode();
   final controller = TextEditingController();
 
   final RxBool enableClear = false.obs;
@@ -32,6 +33,7 @@ class SelectTopicController
 
   @override
   void onClose() {
+    focusNode.dispose();
     controller.dispose();
     super.onClose();
   }

lib/pages/dynamics_select_topic/view.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:PiliPlus/common/widgets/custom_icon.dart';
 import 'package:PiliPlus/common/widgets/loading_widget/loading_widget.dart';
 import 'package:PiliPlus/http/loading_state.dart';
@@ -5,9 +7,9 @@ import 'package:PiliPlus/models/topic_pub_search/topic_item.dart';
 import 'package:PiliPlus/pages/dynamics_select_topic/controller.dart';
 import 'package:PiliPlus/utils/extension.dart';
 import 'package:PiliPlus/utils/utils.dart';
-import 'package:easy_debounce/easy_throttle.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:stream_transform/stream_transform.dart';
 
 class SelectTopicPanel extends StatefulWidget {
   const SelectTopicPanel({
@@ -25,8 +27,9 @@ class SelectTopicPanel extends StatefulWidget {
 
 class _SelectTopicPanelState extends State<SelectTopicPanel> {
   final _controller = Get.put(SelectTopicController());
-
-  double offset = 0;
+  late double offset;
+  final StreamController<String> _ctr = StreamController<String>();
+  late StreamSubscription<String> _sub;
 
   @override
   void initState() {
@@ -35,11 +38,21 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
       _controller.onReload();
     }
     offset = widget.scrollController?.initialScrollOffset ?? 0;
+    _sub = _ctr.stream
+        .debounce(const Duration(milliseconds: 300), trailing: true)
+        .listen((value) {
+      _controller
+        ..enableClear.value = value.isNotEmpty
+        ..onRefresh().whenComplete(() => WidgetsBinding.instance
+            .addPostFrameCallback((_) => widget.scrollController?.jumpToTop()));
+    });
   }
 
   @override
   void dispose() {
     widget.callback?.call(offset);
+    _sub.cancel();
+    _ctr.close();
     super.dispose();
   }
 
@@ -69,17 +82,9 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
         Padding(
           padding: const EdgeInsets.only(left: 16, right: 16, bottom: 5),
           child: TextField(
+            focusNode: _controller.focusNode,
             controller: _controller.controller,
-            onChanged: (value) {
-              EasyThrottle.throttle(
-                'topicPubSearch',
-                const Duration(milliseconds: 300),
-                () => _controller
-                  ..enableClear.value = value.isNotEmpty
-                  ..onRefresh()
-                      .whenComplete(() => widget.scrollController?.jumpToTop()),
-              );
-            },
+            onChanged: _ctr.add,
             decoration: InputDecoration(
               border: const OutlineInputBorder(
                 gapPadding: 0,
@@ -119,8 +124,10 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
                           onTap: () => _controller
                             ..enableClear.value = false
                             ..controller.clear()
-                            ..onRefresh().whenComplete(
-                                () => widget.scrollController?.jumpToTop()),
+                            ..onRefresh().whenComplete(() => WidgetsBinding
+                                .instance
+                                .addPostFrameCallback((_) =>
+                                    widget.scrollController?.jumpToTop())),
                         ),
                       )
                     : const SizedBox.shrink(),
@@ -148,6 +155,9 @@ class _SelectTopicPanelState extends State<SelectTopicPanel> {
         response?.isNotEmpty == true
             ? NotificationListener<ScrollNotification>(
                 onNotification: (notification) {
+                  if (_controller.focusNode.hasFocus) {
+                    _controller.focusNode.unfocus();
+                  }
                   offset = notification.metrics.pixels;
                   return false;
                 },