Source Code added

mobile/lib/presentation/widgets/action_buttons/unstack_action_button.widget.dart

@@ -0,0 +1,48 @@
+import 'package:flutter/material.dart';
+import 'package:fluttertoast/fluttertoast.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/constants/enums.dart';
+import 'package:immich_mobile/extensions/translate_extensions.dart';
+import 'package:immich_mobile/presentation/widgets/action_buttons/base_action_button.widget.dart';
+import 'package:immich_mobile/providers/infrastructure/action.provider.dart';
+import 'package:immich_mobile/providers/timeline/multiselect.provider.dart';
+import 'package:immich_mobile/widgets/common/immich_toast.dart';
+
+class UnStackActionButton extends ConsumerWidget {
+  final ActionSource source;
+  final bool iconOnly;
+  final bool menuItem;
+
+  const UnStackActionButton({super.key, required this.source, this.iconOnly = false, this.menuItem = false});
+
+  void _onTap(BuildContext context, WidgetRef ref) async {
+    if (!context.mounted) {
+      return;
+    }
+
+    final result = await ref.read(actionProvider.notifier).unStack(source);
+    ref.read(multiSelectProvider.notifier).reset();
+
+    final successMessage = 'unstack_action_prompt'.t(context: context, args: {'count': result.count.toString()});
+
+    if (context.mounted) {
+      ImmichToast.show(
+        context: context,
+        msg: result.success ? successMessage : 'scaffold_body_error_occurred'.t(context: context),
+        gravity: ToastGravity.BOTTOM,
+        toastType: result.success ? ToastType.success : ToastType.error,
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return BaseActionButton(
+      iconData: Icons.layers_clear_outlined,
+      label: "unstack".t(context: context),
+      iconOnly: iconOnly,
+      menuItem: menuItem,
+      onPressed: () => _onTap(context, ref),
+    );
+  }
+}