fix : list items

packages/core/lib/presentation/widget/overlay_dropdown_widget/view.dart

@@ -139,3 +139,185 @@ class _OverlayDropdownState<T> extends State<OverlayDropdownWidget<T>> {
     );
   }
 }
+
+
+class OverlayDropdownWidget2<T> extends StatefulWidget {
+  final List<T> items;
+  final T? selectedItem;
+  final T? initialValue;
+  final Widget Function(T item) itemBuilder;
+  final Widget Function(T? selected) labelBuilder;
+  final void Function(T selected)? onChanged;
+  final EdgeInsets? contentPadding;
+  final String Function(T item)? itemToString;
+
+  const OverlayDropdownWidget2({
+    super.key,
+    required this.items,
+    required this.itemBuilder,
+    required this.labelBuilder,
+    this.initialValue,
+    this.onChanged,
+    this.selectedItem,
+    this.contentPadding,
+    this.itemToString,
+  });
+
+  @override
+  State<OverlayDropdownWidget2<T>> createState() => _OverlayDropdownState2<T>();
+}
+
+class _OverlayDropdownState2<T> extends State<OverlayDropdownWidget2<T>> {
+  final GlobalKey _key = GlobalKey();
+  OverlayEntry? _overlayEntry;
+  final RxBool _isOpen = false.obs;
+  T? selectedItem;
+
+  late TextEditingController _searchController;
+  late RxList<T> _filteredItems;
+
+  @override
+  void initState() {
+    super.initState();
+    selectedItem = widget.selectedItem ?? widget.initialValue;
+    _searchController = TextEditingController();
+    _filteredItems = RxList<T>(widget.items);
+  }
+
+  void _showOverlay() {
+    final renderBox = _key.currentContext!.findRenderObject() as RenderBox;
+    final size = renderBox.size;
+    final offset = renderBox.localToGlobal(Offset.zero);
+    final screenHeight = MediaQuery.of(context).size.height;
+
+    final bool openUp = offset.dy + size.height + 300 > screenHeight;
+
+    _searchController.clear();
+    _filteredItems.value = widget.items;
+
+    _overlayEntry = OverlayEntry(
+      builder: (_) => GestureDetector(
+        onTap: _removeOverlay,
+        behavior: HitTestBehavior.translucent,
+        child: Stack(
+          children: [
+            Positioned(
+              left: offset.dx,
+              top: openUp ? offset.dy - 300 - 4 : offset.dy + size.height + 4,
+              width: size.width,
+              child: Material(
+                elevation: 4,
+                borderRadius: BorderRadius.circular(8),
+                child: Obx(() => Container(
+                  decoration: BoxDecoration(
+                    color: AppColor.bgLight,
+                    border: Border.all(color: AppColor.darkGreyLight),
+                    borderRadius: BorderRadius.circular(8),
+                  ),
+                  constraints: BoxConstraints(maxHeight: 300),
+                  child: Column(
+                    children: [
+                      Padding(
+                        padding: const EdgeInsets.all(8),
+                        child: TextField(
+                          controller: _searchController,
+                          decoration: const InputDecoration(
+                            hintText: 'جستجو...',
+                            isDense: true,
+                            contentPadding: EdgeInsets.symmetric(horizontal: 12, vertical: 8),
+                            border: OutlineInputBorder(),
+                          ),
+                          onChanged: (query) {
+                            _filteredItems.value = widget.items
+                                .where((item) =>
+                            widget.itemToString?.call(item).toLowerCase().contains(query.toLowerCase()) ??
+                                false)
+                                .toList();
+                          },
+                        ),
+                      ),
+                      if (_filteredItems.isEmpty)
+                        const Padding(
+                          padding: EdgeInsets.all(16.0),
+                          child: Text("نتیجه‌ای یافت نشد."),
+                        ),
+                      if (_filteredItems.isNotEmpty)
+                        Expanded(
+                          child: ListView(
+                            shrinkWrap: true,
+                            physics: const BouncingScrollPhysics(),
+                            children: _filteredItems.map((item) {
+                              return InkWell(
+                                onTap: () {
+                                  widget.onChanged?.call(item);
+                                  setState(() {
+                                    selectedItem = item;
+                                  });
+                                  _removeOverlay();
+                                },
+                                child: Padding(
+                                  padding: widget.contentPadding ??
+                                      const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+                                  child: widget.itemBuilder(item),
+                                ),
+                              );
+                            }).toList(),
+                          ),
+                        ),
+                    ],
+                  ),
+                )),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+
+    Overlay.of(context).insert(_overlayEntry!);
+    _isOpen.value = true;
+  }
+
+  void _removeOverlay() {
+    _overlayEntry?.remove();
+    _overlayEntry = null;
+    _isOpen.value = false;
+  }
+
+  @override
+  void dispose() {
+    _removeOverlay();
+    _searchController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return IgnorePointer(
+      ignoring: widget.items.isEmpty,
+      child: GestureDetector(
+        key: _key,
+        onTap: () {
+          _isOpen.value ? _removeOverlay() : _showOverlay();
+        },
+        child: Container(
+          height: 40,
+          width: Get.width,
+          padding: const EdgeInsets.symmetric(horizontal: 12),
+          decoration: BoxDecoration(
+            color: widget.items.isEmpty ? Colors.grey.shade200 : AppColor.bgLight,
+            border: Border.all(color: AppColor.darkGreyLight),
+            borderRadius: BorderRadius.circular(8),
+          ),
+          child: Obx(() => Row(
+            mainAxisAlignment: MainAxisAlignment.spaceBetween,
+            children: [
+              widget.labelBuilder(selectedItem),
+              Icon(_isOpen.value ? CupertinoIcons.chevron_up : CupertinoIcons.chevron_down, size: 14),
+            ],
+          )),
+        ),
+      ),
+    );
+  }
+}