TF-3454 Add hide download feature to download all

lib/features/email/domain/state/download_all_attachments_for_web_state.dart

@@ -1,16 +1,18 @@
 import 'package:core/presentation/state/failure.dart';
 import 'package:core/presentation/state/success.dart';
+import 'package:dio/dio.dart';
 import 'package:model/download/download_task_id.dart';
 import 'package:model/email/attachment.dart';
 
 class StartDownloadAllAttachmentsForWeb extends UIState {
-  StartDownloadAllAttachmentsForWeb(this.taskId, this.attachment);
+  StartDownloadAllAttachmentsForWeb(this.taskId, this.attachment, {this.cancelToken});
 
   final DownloadTaskId taskId;
   final Attachment attachment;
+  final CancelToken? cancelToken;
 
   @override
-  List<Object> get props => [taskId, attachment];
+  List<Object?> get props => [taskId, attachment, cancelToken];
 }
 
 class DownloadingAllAttachmentsForWeb extends LoadingState {
@@ -42,10 +44,11 @@ class DownloadAllAttachmentsForWebSuccess extends UIState {
 }
 
 class DownloadAllAttachmentsForWebFailure extends FeatureFailure {
-  DownloadAllAttachmentsForWebFailure({super.exception, required this.taskId});
+  DownloadAllAttachmentsForWebFailure({super.exception, required this.taskId, this.cancelToken});
 
   final DownloadTaskId taskId;
+  final CancelToken? cancelToken;
 
   @override
-  List<Object> get props => [exception, taskId];
+  List<Object?> get props => [exception, taskId, cancelToken];
 }

lib/features/email/domain/usecases/download_all_attachments_for_web_interactor.dart

@@ -49,6 +49,7 @@ class DownloadAllAttachmentsForWebInteractor {
       onReceiveController.add(Right(StartDownloadAllAttachmentsForWeb(
         taskId,
         attachment,
+        cancelToken: cancelToken,
       )));
       final currentAccount = await _accountRepository.getCurrentAccount();
       AccountRequest accountRequest;
@@ -77,7 +78,11 @@ class DownloadAllAttachmentsForWebInteractor {
       yield Right(DownloadAllAttachmentsForWebSuccess(taskId: taskId));
     } catch (e) {
       logError('DownloadAllAttachmentsForWebInteractor::execute():EXCEPTION: $e');
-      yield Left(DownloadAllAttachmentsForWebFailure(exception: e, taskId: taskId));
+      yield Left(DownloadAllAttachmentsForWebFailure(
+        exception: e,
+        taskId: taskId,
+        cancelToken: cancelToken,
+      ));
     }
   }
 }

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

@@ -478,6 +478,7 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
                 DownloadTaskState(
                   taskId: success.taskId,
                   attachment: success.attachment,
+                  onCancel: () => success.cancelToken?.cancel(),
                 ),
               );
 
@@ -1073,11 +1074,12 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
     DownloadAllAttachmentsForWebFailure failure,
   ) {
     mailboxDashBoardController.deleteDownloadTask(failure.taskId);
-    if (currentOverlayContext != null && currentContext != null) {
-      appToast.showToastErrorMessage(
-        currentOverlayContext!,
-        AppLocalizations.of(currentContext!).attachment_download_failed);
-    }  
+    if (currentOverlayContext == null || currentContext == null) return;
+    String message = AppLocalizations.of(currentContext!).attachment_download_failed;
+    if (failure.cancelToken?.isCancelled == true) {
+      message = AppLocalizations.of(currentContext!).downloadAttachmentHasBeenCancelled;
+    }
+    appToast.showToastErrorMessage(currentOverlayContext!, message);
   }
 
   void _downloadAttachmentForWebSuccessAction(DownloadAttachmentForWebSuccess success) {