feat, mouse wheel and touchpad scroll mode, default or reverse

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/desktop/pages/desktop_setting_page.dart

@@ -105,6 +105,7 @@ class _DesktopSettingPageState extends State<DesktopSettingPage>
       _TabInfo('Network', Icons.link_outlined, Icons.link),
       _TabInfo(
           'Display', Icons.desktop_windows_outlined, Icons.desktop_windows),
+      _TabInfo('Input', Icons.keyboard_outlined, Icons.keyboard),
       _TabInfo('Account', Icons.person_outline, Icons.person),
       _TabInfo('About', Icons.info_outline, Icons.info)
     ];
@@ -121,6 +122,7 @@ class _DesktopSettingPageState extends State<DesktopSettingPage>
       _Safety(),
       _Network(),
       _Display(),
+      _Input(),
       _Account(),
       _About(),
     ];
@@ -1220,6 +1222,50 @@ class _DisplayState extends State<_Display> {
   }
 }
 
+class _Input extends StatefulWidget {
+  const _Input({Key? key}) : super(key: key);
+
+  @override
+  State<_Input> createState() => _InputState();
+}
+
+class _InputState extends State<_Input> {
+  @override
+  Widget build(BuildContext context) {
+    final scrollController = ScrollController();
+    return DesktopScrollWrapper(
+        scrollController: scrollController,
+        child: ListView(
+            controller: scrollController,
+            physics: DraggableNeverScrollableScrollPhysics(),
+            children: [
+              scrollMode(context),
+            ]).marginOnly(bottom: _kListViewBottomMargin));
+  }
+
+  Widget scrollMode(BuildContext context) {
+    final key = 'scroll_mode';
+    onChanged(String value) async {
+      await bind.mainSetUserDefaultOption(key: key, value: value);
+      setState(() {});
+    }
+
+    final groupValue = bind.mainGetUserDefaultOption(key: key);
+    return _Card(title: 'Default Scroll Mode', children: [
+      _Radio(context,
+          value: kScrollModeDefault,
+          groupValue: groupValue,
+          label: 'Default scroll',
+          onChanged: onChanged),
+      _Radio(context,
+          value: kScrollModeReverse,
+          groupValue: groupValue,
+          label: 'Reverse scroll',
+          onChanged: onChanged),
+    ]);
+  }
+}
+
 class _Account extends StatefulWidget {
   const _Account({Key? key}) : super(key: key);