opt multi del

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

lib/pages/common/search/common_search_controller.dart

@@ -0,0 +1,31 @@
+import 'package:PiliPlus/pages/common/common_list_controller.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+abstract class CommonSearchController<R, T> extends CommonListController<R, T> {
+  final editController = TextEditingController();
+  final focusNode = FocusNode();
+
+  void onClear() {
+    if (editController.text.isNotEmpty) {
+      editController.clear();
+    } else {
+      Get.back();
+    }
+  }
+
+  @override
+  Future<void> onRefresh() {
+    if (editController.value.text.isEmpty) {
+      return Future.value();
+    }
+    return super.onRefresh();
+  }
+
+  @override
+  void onClose() {
+    editController.dispose();
+    focusNode.dispose();
+    super.onClose();
+  }
+}

lib/pages/common/search/common_search_page.dart

@@ -0,0 +1,122 @@
+import 'package:PiliPlus/common/widgets/appbar/appbar.dart';
+import 'package:PiliPlus/common/widgets/loading_widget/http_error.dart';
+import 'package:PiliPlus/http/loading_state.dart';
+import 'package:PiliPlus/pages/common/search/common_search_controller.dart';
+import 'package:PiliPlus/pages/common/multi_select/base.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+abstract class CommonSearchPage extends StatefulWidget {
+  const CommonSearchPage({super.key});
+}
+
+abstract class CommonSearchPageState<S extends CommonSearchPage, R, T>
+    extends State<S> {
+  CommonSearchController<R, T> get controller;
+
+  List<Widget>? get extraActions => null;
+
+  List<Widget>? get multiSelectChildren => null;
+
+  @override
+  Widget build(BuildContext context) {
+    if (controller case MultiSelectBase multiCtr) {
+      return Obx(() {
+        final enableMultiSelect = multiCtr.enableMultiSelect.value;
+        return PopScope(
+          canPop: !enableMultiSelect,
+          onPopInvokedWithResult: (didPop, result) {
+            if (enableMultiSelect) {
+              multiCtr.handleSelect();
+            }
+          },
+          child: _build(true),
+        );
+      });
+    }
+    return _build(false);
+  }
+
+  Widget _build(bool multiSelect) {
+    return Scaffold(
+      resizeToAvoidBottomInset: false,
+      appBar: _buildBar(multiSelect),
+      body: SafeArea(
+        top: false,
+        bottom: false,
+        child: CustomScrollView(
+          physics: const AlwaysScrollableScrollPhysics(),
+          controller: controller.scrollController,
+          slivers: [
+            SliverPadding(
+              padding: EdgeInsets.only(
+                bottom: MediaQuery.paddingOf(context).bottom + 80,
+              ),
+              sliver: Obx(() => _buildBody(controller.loadingState.value)),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  PreferredSizeWidget _buildBar(bool multiSelect) {
+    final AppBar bar = AppBar(
+      actions: [
+        IconButton(
+          tooltip: '搜索',
+          onPressed: controller.onRefresh,
+          icon: const Icon(Icons.search_outlined, size: 22),
+        ),
+        ...?extraActions,
+        const SizedBox(width: 10),
+      ],
+      title: TextField(
+        autofocus: true,
+        focusNode: controller.focusNode,
+        controller: controller.editController,
+        textInputAction: TextInputAction.search,
+        textAlignVertical: TextAlignVertical.center,
+        decoration: InputDecoration(
+          hintText: '搜索',
+          border: InputBorder.none,
+          suffixIcon: IconButton(
+            tooltip: '清空',
+            icon: const Icon(Icons.clear, size: 22),
+            onPressed: () => controller
+              ..loadingState.value = LoadingState.loading()
+              ..onClear()
+              ..focusNode.requestFocus(),
+          ),
+        ),
+        onSubmitted: (value) => controller.onRefresh(),
+      ),
+    );
+    if (multiSelect) {
+      return MultiSelectAppBarWidget(
+        ctr: controller as MultiSelectBase,
+        children: multiSelectChildren,
+        child: bar,
+      );
+    }
+    return bar;
+  }
+
+  Widget _buildBody(LoadingState<List<T>?> loadingState) {
+    return switch (loadingState) {
+      Loading() => const HttpError(),
+      Success(:var response) =>
+        response?.isNotEmpty == true
+            ? buildList(response!)
+            : HttpError(
+                onReload: controller.onReload,
+              ),
+      Error(:var errMsg) => HttpError(
+        errMsg: errMsg,
+        onReload: controller.onReload,
+      ),
+    };
+  }
+
+  Widget buildList(List<T> list);
+}