feat(android): add option to disable back action to open drawer

[skip ci]

Author: jagandeepbrar

assets/localization/en.json

@@ -517,6 +517,8 @@
     "settings.NoExternalModulesFound": "No External Modules Found",
     "settings.NoHeadersAdded": "No Headers Added",
     "settings.NoProfilesFound": "No Profiles Found",
+    "settings.OpenDrawerOnBackAction": "Open Drawer on Back Action",
+    "settings.OpenDrawerOnBackActionDescription": "Open the drawer instead of closing LunaSea",
     "settings.OpenLinksIn": "Open Links In…",
     "settings.Password": "Password",
     "settings.PasswordHint1": "If your password includes special characters, considering adding a basic authentication header with your username and password instead for better support",

lib/database/tables/lunasea.dart

@@ -11,6 +11,7 @@ import 'package:lunasea/vendor.dart';
 import 'package:lunasea/widgets/ui.dart';
 
 enum LunaSeaDatabase<T> with LunaTableMixin<T> {
+  ANDROID_BACK_OPENS_DRAWER<bool>(true),
   DRAWER_AUTOMATIC_MANAGE<bool>(true),
   DRAWER_MANUAL_ORDER<List>([]),
   ENABLED_PROFILE<String>(LunaProfile.DEFAULT_PROFILE),

lib/modules/settings/routes/configuration_general/route.dart

@@ -4,6 +4,7 @@ import 'package:lunasea/database/tables/bios.dart';
 import 'package:lunasea/modules/settings.dart';
 import 'package:lunasea/system/localization.dart';
 import 'package:lunasea/system/network/network.dart';
+import 'package:lunasea/system/platform.dart';
 
 class ConfigurationGeneralRoute extends StatefulWidget {
   const ConfigurationGeneralRoute({
@@ -42,6 +43,7 @@ class _State extends State<ConfigurationGeneralRoute>
         ..._localization(),
         ..._modules(),
         if (LunaNetwork.isSupported) ..._network(),
+        ..._platform(),
       ],
     );
   }
@@ -77,6 +79,33 @@ class _State extends State<ConfigurationGeneralRoute>
     ];
   }
 
+  List<Widget> _platform() {
+    if (LunaPlatform.isAndroid) {
+      return [
+        LunaHeader(text: 'settings.Platform'.tr()),
+        _openDrawerOnBackAction(),
+      ];
+    }
+
+    return [];
+  }
+
+  Widget _openDrawerOnBackAction() {
+    const _db = LunaSeaDatabase.ANDROID_BACK_OPENS_DRAWER;
+    return _db.listenableBuilder(
+      builder: (context, _) => LunaBlock(
+        title: 'settings.OpenDrawerOnBackAction'.tr(),
+        body: [
+          TextSpan(text: 'settings.OpenDrawerOnBackActionDescription'.tr()),
+        ],
+        trailing: LunaSwitch(
+          value: _db.read(),
+          onChanged: _db.update,
+        ),
+      ),
+    );
+  }
+
   Widget _amoledTheme() {
     const _db = LunaSeaDatabase.THEME_AMOLED;
     return _db.listenableBuilder(

lib/widgets/ui/scaffold.dart

@@ -33,24 +33,27 @@ class LunaScaffold extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    if (LunaPlatform.isAndroid) {
-      return WillPopScope(
-        onWillPop: () async {
-          final state = scaffoldKey.currentState;
-          if (state?.hasDrawer ?? false) {
-            if (state!.isDrawerOpen) return true;
-            state.openDrawer();
-            return false;
-          }
-          return true;
-        },
-        child: scaffold,
-      );
-    }
-
+    if (LunaPlatform.isAndroid) return android;
     return scaffold;
   }
 
+  Widget get android {
+    return WillPopScope(
+      onWillPop: () async {
+        if (!LunaSeaDatabase.ANDROID_BACK_OPENS_DRAWER.read()) return true;
+
+        final state = scaffoldKey.currentState;
+        if (state?.hasDrawer ?? false) {
+          if (state!.isDrawerOpen) return true;
+          state.openDrawer();
+          return false;
+        }
+        return true;
+      },
+      child: scaffold,
+    );
+  }
+
   Widget get scaffold {
     return LunaSeaDatabase.ENABLED_PROFILE.listenableBuilder(
       builder: (context, _) {

localization/settings/en.json

@@ -189,6 +189,8 @@
   "settings.NoExternalModulesFound": "No External Modules Found",
   "settings.NoHeadersAdded": "No Headers Added",
   "settings.NoProfilesFound": "No Profiles Found",
+  "settings.OpenDrawerOnBackAction": "Open Drawer on Back Action",
+  "settings.OpenDrawerOnBackActionDescription": "Open the drawer instead of closing LunaSea",
   "settings.OpenLinksIn": "Open Links In…",
   "settings.Password": "Password",
   "settings.PasswordHint1": "If your password includes special characters, considering adding a basic authentication header with your username and password instead for better support",