TF-4075 Jump to attachments list position on mobile

(cherry picked from commit cd2ca1ec3c5b5160820823905d9f0183536b07e3)

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

@@ -86,10 +86,23 @@ class CollapseEmailInThreadDetailAction extends EmailUIAction {
 }
 
 class OpenAttachmentListAction extends EmailUIAction {
-  OpenAttachmentListAction(this.emailId);
+  OpenAttachmentListAction({
+    required this.emailId,
+    required this.countAttachments,
+    required this.screenHeight,
+    this.isDisplayAllAttachments = false,
+  });
 
   final EmailId? emailId;
+  final int countAttachments;
+  final bool isDisplayAllAttachments;
+  final double screenHeight;
 
   @override
-  List<Object?> get props => [emailId];
+  List<Object?> get props => [
+    emailId,
+    countAttachments,
+    isDisplayAllAttachments,
+    screenHeight,
+  ];
 }

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

@@ -432,7 +432,12 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
         if (_currentEmailId == null || action.emailId != _currentEmailId) {
           return;
         }
-        jumpToAttachmentList();
+        jumpToAttachmentList(
+          emailId: _currentEmailId!,
+          countAttachments: action.countAttachments,
+          screenHeight: action.screenHeight,
+          isDisplayAllAttachments: action.isDisplayAllAttachments,
+        );
         mailboxDashBoardController.clearEmailUIAction();
       }
     }));
@@ -1765,10 +1770,12 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
 
   void showAllAttachmentsAction() {
     isDisplayAllAttachments.value = true;
+    threadDetailController?.isDisplayAllAttachments = true;
   }
 
   void hideAllAttachmentsAction() {
     isDisplayAllAttachments.value = false;
+    threadDetailController?.isDisplayAllAttachments = false;
   }
 
   void _unsubscribeEmail(BuildContext context, PresentationEmail presentationEmail) {

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

@@ -1,16 +1,50 @@
 import 'package:core/presentation/extensions/scroll_controller_extension.dart';
+import 'package:core/utils/app_logger.dart';
+import 'package:core/utils/platform_info.dart';
 import 'package:flutter/material.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:tmail_ui_user/features/email/presentation/controller/single_email_controller.dart';
+import 'package:tmail_ui_user/features/email/presentation/utils/email_utils.dart';
 
 extension HandleOpenAttachmentListExtension on SingleEmailController {
-  void jumpToAttachmentList() {
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (attachmentListKey == null) return;
+  void jumpToAttachmentList({
+    required EmailId emailId,
+    required int countAttachments,
+    required double screenHeight,
+    bool isDisplayAllAttachments = false,
+  }) {
+    final scrollController = threadDetailController?.scrollController;
+    if (scrollController == null || !scrollController.hasClients) {
+      logError(
+          '$runtimeType::jumpToAttachmentList(): scrollController is null');
+      return;
+    }
 
-      threadDetailController?.scrollController?.scrollToWidgetTop(
-        key: attachmentListKey!,
-        padding: 70,
-      );
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (PlatformInfo.isWeb && attachmentListKey != null) {
+        scrollController.scrollToWidgetTop(
+          key: attachmentListKey!,
+          padding: 70,
+        );
+      } else {
+        final emailContentHeight =
+            (screenHeight - 180).clamp(0.0, screenHeight).toDouble();
+
+        final totalItems = isDisplayAllAttachments
+            ? countAttachments + 1
+            : EmailUtils.maxMobileVisibleAttachments + 1;
+
+        final totalAttachmentsHeight =
+            totalItems * EmailUtils.attachmentItemHeight +
+                (totalItems - 1) * EmailUtils.attachmentItemSpacing;
+
+        log('$runtimeType::jumpToAttachmentList(): totalAttachmentsHeight: $totalAttachmentsHeight, emailContentHeight: $emailContentHeight');
+        scrollController.scrollToBottomWithPadding(
+          padding: totalAttachmentsHeight < emailContentHeight
+              ? 0
+              : emailContentHeight,
+        );
+      }
     });
   }
 }

lib/features/email/presentation/utils/email_utils.dart

@@ -24,6 +24,7 @@ class EmailUtils {
   static const double desktopItemMaxWidth = 260;
   static const double desktopMoreButtonMaxWidth = 70;
   static const double attachmentItemSpacing = 8;
+  static const double attachmentItemHeight = 36;
   static const int maxMobileVisibleAttachments = 3;
 
   EmailUtils._();

lib/features/email/presentation/widgets/attachment_item_widget.dart

@@ -109,7 +109,7 @@ class AttachmentItemWidget extends StatelessWidget {
       );
 
       return TMailContainerWidget(
-        height: 36,
+        height: EmailUtils.attachmentItemHeight,
         borderRadius: 8,
         border: Border.all(color: AppColor.m3Tertiary70),
         padding: const EdgeInsets.symmetric(horizontal: 8),

lib/features/email/presentation/widgets/email_attachments_widget.dart

@@ -65,7 +65,7 @@ class EmailAttachmentsWidget extends StatelessWidget {
     bool isMobile = responsiveUtils.isMobile(context);
 
     final hideButton = SizedBox(
-      height: 36,
+      height: EmailUtils.attachmentItemHeight,
       width: isMobile ? double.infinity : null,
       child: ConfirmDialogButton(
         label: AppLocalizations.of(context).hideAll,
@@ -105,7 +105,9 @@ class EmailAttachmentsWidget extends StatelessWidget {
                   return AttachmentItemWidget(
                     attachment: attachment,
                     imagePaths: imagePaths,
-                    margin: const EdgeInsets.only(top: 8),
+                    margin: const EdgeInsets.only(
+                      top: EmailUtils.attachmentItemSpacing,
+                    ),
                     downloadAttachmentAction: downloadAttachmentAction,
                     viewAttachmentAction: viewAttachmentAction,
                     singleEmailControllerTag: singleEmailControllerTag,
@@ -113,10 +115,10 @@ class EmailAttachmentsWidget extends StatelessWidget {
                 }).toList(),
               ),
             ),
-            const SizedBox(height: 8),
+            const SizedBox(height: EmailUtils.attachmentItemSpacing),
             if (hiddenItemsCount > 0)
               SizedBox(
-                height: 36,
+                height: EmailUtils.attachmentItemHeight,
                 width: double.infinity,
                 child: ConfirmDialogButton(
                   label: AppLocalizations.of(context).moreAttachments(
@@ -200,7 +202,7 @@ class EmailAttachmentsWidget extends StatelessWidget {
                         }).toList(),
                         if (hiddenItemsCount > 0)
                           SizedBox(
-                            height: 36,
+                            height: EmailUtils.attachmentItemHeight,
                             child: ConfirmDialogButton(
                               label: '+$hiddenItemsCount',
                               backgroundColor: Theme.of(context).colorScheme.outline.withValues(