TF-4075 Jump to attachments list position on web responsive mobile

lib/features/email/presentation/action/email_ui_action.dart

@@ -81,6 +81,15 @@ class CollapseEmailInThreadDetailAction extends EmailUIAction {
 
   final EmailId emailId;
 
+  @override
+  List<Object?> get props => [emailId];
+}
+
+class OpenAttachmentListAction extends EmailUIAction {
+  OpenAttachmentListAction(this.emailId);
+
+  final EmailId? emailId;
+
   @override
   List<Object?> get props => [emailId];
 }

lib/features/email/presentation/controller/single_email_controller.dart

@@ -189,10 +189,11 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
   final isEmailContentClipped = RxBool(false);
   final attendanceStatus = Rxn<AttendanceStatus>();
   final htmlContentViewKey = GlobalKey<HtmlContentViewState>();
-  final attachmentListKey = GlobalKey();
 
   Identity? _identitySelected;
   ButtonState? _printEmailButtonState;
+  GlobalKey? attachmentListKey;
+
   final obxListeners = <Worker>[];
   late final EmailActionReactor emailActionReactor;
 
@@ -249,6 +250,9 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
 
   @override
   void onInit() {
+    if (PlatformInfo.isWeb) {
+      attachmentListKey = GlobalKey();
+    }
     _threadDetailController = getBinding<ThreadDetailController>();
     _injectCalendarEventBindings(session, accountId);
     _registerObxStreamListener();

lib/features/email/presentation/email_view.dart

@@ -450,6 +450,9 @@ class EmailView extends GetWidget<SingleEmailController> {
     return Obx(() {
       if (controller.attachments.isNotEmpty) {
         return EmailAttachmentsWidget(
+          key: PlatformInfo.isWeb && controller.responsiveUtils.isMobile(context)
+              ? controller.attachmentListKey
+              : null,
           responsiveUtils: controller.responsiveUtils,
           attachments: controller.attachments,
           imagePaths: controller.imagePaths,

lib/features/email/presentation/extensions/handle_open_attachment_list_extension.dart

@@ -0,0 +1,16 @@
+import 'package:core/presentation/extensions/scroll_controller_extension.dart';
+import 'package:flutter/material.dart';
+import 'package:tmail_ui_user/features/email/presentation/controller/single_email_controller.dart';
+
+extension HandleOpenAttachmentListExtension on SingleEmailController {
+  void jumpToAttachmentList() {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (attachmentListKey == null) return;
+
+      threadDetailController?.scrollController?.scrollToWidgetTop(
+        key: attachmentListKey!,
+        padding: 70,
+      );
+    });
+  }
+}