Initial commit

lib/widgets/permission_slider_dialog.dart

@@ -0,0 +1,66 @@
+// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
+// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import 'package:tatchat/l10n/l10n.dart';
+import 'package:tatchat/widgets/adaptive_dialogs/adaptive_dialog_action.dart';
+import 'package:tatchat/widgets/adaptive_dialogs/dialog_text_field.dart';
+import 'package:material_ui/material_ui.dart';
+
+Future<int?> showPermissionChooser(
+  BuildContext context, {
+  int currentLevel = 0,
+  int maxLevel = 100,
+}) async {
+  final controller = TextEditingController(text: currentLevel.toString());
+  final error = ValueNotifier<String?>(null);
+  return await showAdaptiveDialog<int>(
+    context: context,
+    builder: (context) => AlertDialog.adaptive(
+      title: Center(child: Text(L10n.of(context).chatPermissions)),
+      content: ConstrainedBox(
+        constraints: const BoxConstraints(maxWidth: 256, maxHeight: 256),
+        child: Column(
+          mainAxisSize: .min,
+          crossAxisAlignment: .stretch,
+          spacing: 16.0,
+          children: [
+            Text(L10n.of(context).setPowerLevelDescription),
+            ValueListenableBuilder(
+              valueListenable: error,
+              builder: (context, errorText, _) => DialogTextField(
+                controller: controller,
+                hintText: currentLevel.toString(),
+                keyboardType: TextInputType.number,
+                labelText: L10n.of(context).custom,
+                errorText: errorText,
+              ),
+            ),
+          ],
+        ),
+      ),
+      actions: [
+        AdaptiveDialogAction(
+          onPressed: () {
+            final level = int.tryParse(controller.text.trim());
+            if (level == null) {
+              error.value = L10n.of(context).pleaseEnterANumber;
+              return;
+            }
+            if (level > maxLevel) {
+              error.value = L10n.of(context).noPermission;
+              return;
+            }
+            Navigator.of(context).pop<int>(level);
+          },
+          child: Text(L10n.of(context).setPowerLevel),
+        ),
+        AdaptiveDialogAction(
+          onPressed: () => Navigator.of(context).pop<int>(null),
+          child: Text(L10n.of(context).cancel),
+        ),
+      ],
+    ),
+  );
+}