Initial commit

lib/widgets/adaptive_dialogs/show_modal_action_popup.dart

@@ -0,0 +1,119 @@
+// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
+// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import 'package:cupertino_ui/cupertino_ui.dart';
+import 'package:material_ui/material_ui.dart';
+
+Future<T?> showModalActionPopup<T>({
+  required BuildContext context,
+  required List<AdaptiveModalAction<T>> actions,
+  String? title,
+  String? message,
+  String? cancelLabel,
+  bool useRootNavigator = true,
+}) {
+  final theme = Theme.of(context);
+
+  switch (theme.platform) {
+    case TargetPlatform.android:
+    case TargetPlatform.fuchsia:
+    case TargetPlatform.windows:
+    case TargetPlatform.linux:
+      return showModalBottomSheet(
+        isScrollControlled: true,
+        useRootNavigator: useRootNavigator,
+        context: context,
+        clipBehavior: Clip.hardEdge,
+        constraints: BoxConstraints(
+          maxWidth: 512,
+          maxHeight: MediaQuery.sizeOf(context).height - 32,
+        ),
+        builder: (context) => ListView(
+          shrinkWrap: true,
+          children: [
+            if (title != null || message != null) ...[
+              ListTile(
+                title: title == null
+                    ? null
+                    : Text(title, style: theme.textTheme.labelSmall),
+                subtitle: message == null ? null : Text(message),
+              ),
+              const Divider(height: 1),
+            ],
+            ...actions.map(
+              (action) => ListTile(
+                leading: action.icon,
+                title: Text(
+                  action.label,
+                  maxLines: 1,
+                  style: action.isDestructive
+                      ? TextStyle(
+                          color: theme.colorScheme.error,
+                          fontWeight: action.isDefaultAction
+                              ? FontWeight.bold
+                              : null,
+                        )
+                      : null,
+                ),
+                onTap: () => Navigator.of(context).pop<T>(action.value),
+              ),
+            ),
+            if (cancelLabel != null) ...[
+              const Divider(height: 1),
+              ListTile(
+                title: Text(cancelLabel),
+                onTap: () => Navigator.of(context).pop(null),
+              ),
+            ],
+          ],
+        ),
+      );
+    case TargetPlatform.iOS:
+    case TargetPlatform.macOS:
+      return showCupertinoModalPopup<T>(
+        context: context,
+        useRootNavigator: useRootNavigator,
+        builder: (context) => ConstrainedBox(
+          constraints: const BoxConstraints(maxWidth: 512),
+          child: CupertinoActionSheet(
+            title: title == null ? null : Text(title),
+            message: message == null ? null : Text(message),
+            cancelButton: cancelLabel == null
+                ? null
+                : CupertinoActionSheetAction(
+                    onPressed: () => Navigator.of(context).pop(null),
+                    child: Text(cancelLabel),
+                  ),
+            actions: actions
+                .map(
+                  (action) => CupertinoActionSheetAction(
+                    isDestructiveAction: action.isDestructive,
+                    isDefaultAction: action.isDefaultAction,
+                    onPressed: () => Navigator.of(context).pop<T>(action.value),
+                    child: Text(action.label, maxLines: 1),
+                  ),
+                )
+                .toList(),
+          ),
+        ),
+      );
+  }
+}
+
+class AdaptiveModalAction<T> {
+  final String label;
+  final T value;
+  Icon? icon;
+  final bool isDefaultAction;
+  final bool isDestructive;
+
+  AdaptiveModalAction({
+    required this.label,
+    required this.value,
+    this.icon,
+    this.isDefaultAction = false,
+    this.isDestructive = false,
+  });
+}