refa: split fav search page

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

lib/pages/common/common_search_page.dart

@@ -0,0 +1,72 @@
+import 'package:PiliPlus/common/widgets/loading_widget.dart';
+import 'package:PiliPlus/http/loading_state.dart';
+import 'package:PiliPlus/pages/common/common_search_controller.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;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      resizeToAvoidBottomInset: false,
+      appBar: AppBar(
+        actions: [
+          IconButton(
+            tooltip: '搜索',
+            onPressed: controller.onRefresh,
+            icon: const Icon(Icons.search_outlined, size: 22),
+          ),
+          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.onReload(),
+        ),
+      ),
+      body: Obx(() => _buildBody(controller.loadingState.value)),
+    );
+  }
+
+  Widget _buildBody(LoadingState<List<T>?> loadingState) {
+    return switch (loadingState) {
+      Loading() => errorWidget(),
+      Success() => loadingState.response?.isNotEmpty == true
+          ? buildList(loadingState.response!)
+          : errorWidget(
+              callback: controller.onReload,
+            ),
+      Error() => errorWidget(
+          errMsg: loadingState.errMsg,
+          callback: controller.onReload,
+        ),
+      _ => throw UnimplementedError(),
+    };
+  }
+
+  Widget buildList(List<T> list);
+}