TF-4050 refactor: move attachment preview & download logic to download controller

2025-10-23 12:14:39 +07:00
parent 1398a30ed6
commit 92286b48e1
33 changed files with 1055 additions and 651 deletions
@@ -2,15 +2,11 @@ import 'dart:async';
 import 'dart:io';

 import 'package:core/core.dart';
-import 'package:core/presentation/utils/html_transformer/dom/sanitize_hyper_link_tag_in_html_transformers.dart';
 import 'package:core/presentation/utils/html_transformer/text/new_line_transformer.dart';
 import 'package:core/presentation/utils/html_transformer/text/sanitize_autolink_unescape_html_transformer.dart';
-import 'package:core/presentation/utils/html_transformer/text/standardize_html_sanitizing_transformers.dart';
-import 'package:core/utils/html/html_utils.dart';
 import 'package:dartz/dartz.dart';
 import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:flutter_file_dialog/flutter_file_dialog.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
@@ -36,12 +32,10 @@ import 'package:tmail_ui_user/features/base/base_controller.dart';
 import 'package:tmail_ui_user/features/base/mixin/app_loader_mixin.dart';
 import 'package:tmail_ui_user/features/base/mixin/message_dialog_action_manager.dart';
 import 'package:tmail_ui_user/features/base/state/button_state.dart';
-import 'package:tmail_ui_user/features/email/domain/exceptions/email_exceptions.dart';
 import 'package:tmail_ui_user/features/email/domain/extensions/list_attachments_extension.dart';
 import 'package:tmail_ui_user/features/email/domain/model/detailed_email.dart';
 import 'package:tmail_ui_user/features/email/domain/model/event_action.dart';
 import 'package:tmail_ui_user/features/email/domain/model/mark_read_action.dart';
-import 'package:tmail_ui_user/features/email/domain/model/preview_email_eml_request.dart';
 import 'package:tmail_ui_user/features/email/domain/model/send_receipt_to_sender_request.dart';
 import 'package:tmail_ui_user/features/email/domain/model/view_entire_message_request.dart';
 import 'package:tmail_ui_user/features/email/domain/state/calendar_event_accept_state.dart';
@@ -54,13 +48,9 @@ import 'package:tmail_ui_user/features/email/domain/state/export_all_attachments
 import 'package:tmail_ui_user/features/email/domain/state/export_attachment_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/get_email_content_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/get_entire_message_as_document_state.dart';
-import 'package:tmail_ui_user/features/email/domain/state/get_html_content_from_attachment_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/mark_as_email_read_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/mark_as_email_star_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/parse_calendar_event_state.dart';
-import 'package:tmail_ui_user/features/email/domain/state/parse_email_by_blob_id_state.dart';
-import 'package:tmail_ui_user/features/email/domain/state/preview_email_from_eml_file_state.dart';
-import 'package:tmail_ui_user/features/email/domain/state/preview_pdf_file_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/print_email_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/send_receipt_to_sender_state.dart';
 import 'package:tmail_ui_user/features/email/domain/state/unsubscribe_email_state.dart';
@@ -71,13 +61,10 @@ import 'package:tmail_ui_user/features/email/domain/usecases/export_all_attachme
 import 'package:tmail_ui_user/features/email/domain/usecases/export_attachment_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/get_email_content_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/get_entire_message_as_document_interactor.dart';
-import 'package:tmail_ui_user/features/email/domain/usecases/get_html_content_from_attachment_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/mark_as_email_read_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/mark_as_star_email_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/maybe_calendar_event_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/parse_calendar_event_interactor.dart';
-import 'package:tmail_ui_user/features/email/domain/usecases/parse_email_by_blob_id_interactor.dart';
-import 'package:tmail_ui_user/features/email/domain/usecases/preview_email_from_eml_file_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/print_email_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/send_receipt_to_sender_interactor.dart';
 import 'package:tmail_ui_user/features/email/domain/usecases/store_opened_email_interactor.dart';
@@ -87,8 +74,8 @@ import 'package:tmail_ui_user/features/email/presentation/bindings/mdn_interacto
 import 'package:tmail_ui_user/features/email/presentation/extensions/attachment_extension.dart';
 import 'package:tmail_ui_user/features/email/presentation/extensions/calendar_attendee_extension.dart';
 import 'package:tmail_ui_user/features/email/presentation/extensions/calendar_organizer_extension.dart';
-import 'package:tmail_ui_user/features/email/presentation/extensions/handle_open_attachment_list_extension.dart';
 import 'package:tmail_ui_user/features/email/presentation/extensions/handle_mail_action_by_shortcut_action_extension.dart';
+import 'package:tmail_ui_user/features/email/presentation/extensions/handle_open_attachment_list_extension.dart';
 import 'package:tmail_ui_user/features/email/presentation/extensions/update_attendance_status_extension.dart';
 import 'package:tmail_ui_user/features/email/presentation/model/blob_calendar_event.dart';
 import 'package:tmail_ui_user/features/email/presentation/model/composer_arguments.dart';
@@ -97,15 +84,13 @@ import 'package:tmail_ui_user/features/email/presentation/model/email_unsubscrib
 import 'package:tmail_ui_user/features/email/presentation/model/eml_previewer.dart';
 import 'package:tmail_ui_user/features/email/presentation/utils/email_action_reactor/email_action_reactor.dart';
 import 'package:tmail_ui_user/features/email/presentation/utils/email_utils.dart';
-import 'package:tmail_ui_user/features/email/presentation/widgets/html_attachment_previewer.dart';
-import 'package:tmail_ui_user/features/email/presentation/widgets/pdf_viewer/pdf_viewer.dart';
-import 'package:tmail_ui_user/features/email_previewer/email_previewer_dialog_view.dart';
 import 'package:tmail_ui_user/features/home/data/exceptions/session_exceptions.dart';
 import 'package:tmail_ui_user/features/home/domain/extensions/session_extensions.dart';
 import 'package:tmail_ui_user/features/mailbox/presentation/action/mailbox_ui_action.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/action/download_ui_action.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/extensions/handle_download_extension.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/extensions/handle_preview_attachment_extension.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/extensions/open_and_close_composer_extension.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/extensions/update_current_emails_flags_extension.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/dashboard_routes.dart';
@@ -133,8 +118,6 @@ import 'package:tmail_ui_user/main/utils/app_utils.dart';
 class SingleEmailController extends BaseController with AppLoaderMixin {

  final mailboxDashBoardController = Get.find<MailboxDashBoardController>();
-  final _downloadManager = Get.find<DownloadManager>();
-  final _printUtils = Get.find<PrintUtils>();

  final GetEmailContentInteractor _getEmailContentInteractor;
  final MarkAsEmailReadInteractor _markAsEmailReadInteractor;
@@ -143,9 +126,6 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
  final GetAllIdentitiesInteractor _getAllIdentitiesInteractor;
  final StoreOpenedEmailInteractor _storeOpenedEmailInteractor;
  final PrintEmailInteractor _printEmailInteractor;
-  final ParseEmailByBlobIdInteractor _parseEmailByBlobIdInteractor;
-  final PreviewEmailFromEmlFileInteractor _previewEmailFromEmlFileInteractor;
-  final GetHtmlContentFromAttachmentInteractor _getHtmlContentFromAttachmentInteractor;
  final ExportAllAttachmentsInteractor _exportAllAttachmentsInteractor;
  final EmailId? _currentEmailId;

@@ -218,9 +198,6 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
    this._getAllIdentitiesInteractor,
    this._storeOpenedEmailInteractor,
    this._printEmailInteractor,
-    this._parseEmailByBlobIdInteractor,
-    this._previewEmailFromEmlFileInteractor,
-    this._getHtmlContentFromAttachmentInteractor,
    this._exportAllAttachmentsInteractor, {
    EmailId? currentEmailId,
  }) : _currentEmailId = currentEmailId;
@@ -281,24 +258,6 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
      _handlePrintEmailSuccess(success);
    } else if (success is CalendarEventReplySuccess) {
      calendarEventSuccess(success);
-    } else if (success is ParseEmailByBlobIdSuccess) {
-      _handleParseEmailByBlobIdSuccess(success);
-    } else if (success is PreviewEmailFromEmlFileSuccess) {
-      _handlePreviewEmailFromEMLFileSuccess(success);
-    } else if (success is GetHtmlContentFromAttachmentSuccess) {
-      _updateAttachmentsViewState(success.attachment.blobId, Right(success));
-      Get.dialog(HtmlAttachmentPreviewer(
-        title: success.htmlAttachmentTitle,
-        htmlContent: success.sanitizedHtmlContent,
-        mailToClicked: openMailToLink,
-        downloadAttachmentClicked: () {
-          if (currentContext == null || attachments.isEmpty) return;
-          handleDownloadAttachmentAction(success.attachment);
-        },
-        responsiveUtils: responsiveUtils,
-      ));
-    } else if (success is GettingHtmlContentFromAttachment) {
-      _updateAttachmentsViewState(success.attachment.blobId, Right(success));
    } else {
      super.handleSuccessViewState(success);
    }
@@ -320,14 +279,6 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
      _showMessageWhenEmailPrintingFailed(failure);
    } else if (failure is CalendarEventReplyFailure) {
      _calendarEventFailure(failure);
-    } else if (failure is ParseEmailByBlobIdFailure) {
-      _handleParseEmailByBlobIdFailure(failure);
-    } else if (failure is PreviewEmailFromEmlFileFailure) {
-      _handlePreviewEmailFromEMLFileFailure(failure);
-    } else if (failure is GetHtmlContentFromAttachmentFailure) {
-      _handleGetHtmlContentFromAttachmentFailure(failure);
-    } else if (failure is PreviewPDFFileFailure) {
-      _handlePreviewPDFFileFailure(failure);
    } else {
      super.handleFailureViewState(failure);
    }
@@ -427,7 +378,7 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
      mailboxDashBoardController.downloadController.downloadUIAction,
      (action) {
        if (action is UpdateAttachmentsViewStateAction) {
-          _updateAttachmentsViewState(action.blobId, Right(action.success));
+          _updateAttachmentsViewState(action.blobId, action.viewState);
        }
      },
    ));
@@ -921,20 +872,13 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
    return isDownloadAllSupported() && attachments.length > 1;
  }

-  void _downloadPDFFile(Uint8List bytes, String fileName) {
-    _downloadManager.createAnchorElementDownloadFileWeb(bytes, fileName);
-  }
-
-  void _printPDFFile(Uint8List bytes, String fileName) async {
-    await _printUtils.printPDFFile(bytes, fileName);
-  }
-
  void _updateAttachmentsViewState(
    Id? attachmentBlobId,
-    Either<Failure, Success> viewState) {
-      if (attachmentBlobId != null) {
-        attachmentsViewState[attachmentBlobId] = viewState;
-      }
+    Either<Failure, Success> viewState,
+  ) {
+    if (attachmentBlobId != null) {
+      attachmentsViewState[attachmentBlobId] = viewState;
+    }
  }

  void moveToMailbox(PresentationEmail email) async {
@@ -1156,23 +1100,8 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
    );
  }

-  Future<void> openMailToLink(Uri? uri) async {
-    if (uri == null) return;
-    
-    final navigationRouter = RouteUtils.generateNavigationRouterFromMailtoLink(uri.toString());
-    log('SingleEmailController::openMailToLink(): ${uri.toString()}');
-    if (!RouteUtils.canOpenComposerFromNavigationRouter(navigationRouter)) return;
-
-    mailboxDashBoardController.openComposer(
-      ComposerArguments.fromMailtoUri(
-        listEmailAddress: navigationRouter.listEmailAddress,
-        cc: navigationRouter.cc,
-        bcc: navigationRouter.bcc,
-        subject: navigationRouter.subject,
-        body: navigationRouter.body
-      )
-    );
-  }
+  Future<void> openMailToLink(Uri? uri) =>
+      mailboxDashBoardController.openMailToLink(uri);

  void deleteEmailPermanently(PresentationEmail email) {
    emailActionReactor.deleteEmailPermanently(
@@ -1697,7 +1626,7 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
    } else if (PlatformInfo.isMobile) {
      exportAttachment(attachment);
    } else {
-      log('EmailView::handleDownloadAttachmentAction: THE PLATFORM IS SUPPORTED');
+      log('$runtimeType::handleDownloadAttachmentAction: THE PLATFORM IS SUPPORTED');
    }
  }

@@ -1715,258 +1644,18 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
  }

  void handleViewAttachmentAction(BuildContext context, Attachment attachment) {
-    if (PlatformInfo.isWeb && PlatformInfo.isCanvasKit && attachment.isPDFFile) {
-      previewPDFFileAction(context, attachment);
-    } else if (attachment.isEMLFile) {
-      previewEMLFileAction(attachment.blobId, AppLocalizations.of(context));
-    } else if (attachment.isHTMLFile) {
-      final attachmentEvaluation = evaluateAttachment(attachment);
-      if (!attachmentEvaluation.canDownloadAttachment) {
-        consumeState(Stream.value(Left(GetHtmlContentFromAttachmentFailure(
-          exception: null,
-          attachment: attachment,
-        ))));
-        return;
-      }
-
-      consumeState(_getHtmlContentFromAttachmentInteractor.execute(
-        attachmentEvaluation.accountId!,
-        attachment,
-        DownloadTaskId(attachmentEvaluation.blobId!.value),
-        attachmentEvaluation.downloadUrl!,
-        TransformConfiguration.create(
-          customDomTransformers: [SanitizeHyperLinkTagInHtmlTransformer()],
-          customTextTransformers: [const StandardizeHtmlSanitizingTransformers()],
-        ),
-      ));
-    } else {
-      handleDownloadAttachmentAction(
-        attachment,
-        previewerSupported: attachmentPreviewSupported(attachment),
-      );
-    }
-  }
-
-  bool attachmentPreviewSupported(Attachment attachment) {
-    return attachment.isImage || attachment.isText || attachment.isJson;
-  }
-
-  ({
-    bool canDownloadAttachment,
-    AccountId? accountId,
-    String? downloadUrl,
-    Id? blobId,
-  }) evaluateAttachment(
-    Attachment attachment,
-  ) {
-    final accountId = mailboxDashBoardController.accountId.value;
-    dynamic downloadUrl;
-    try {
-      downloadUrl = mailboxDashBoardController.sessionCurrent
-        ?.getDownloadUrl(jmapUrl: dynamicUrlInterceptors.jmapUrl);
-    } catch (e) {
-      logError('SingleEmailController::_getEmailContentAction(): $e');
-      downloadUrl = null;
-    }
-    final blobId = attachment.blobId;
-
-    if (accountId == null || downloadUrl == null || blobId == null) {
-      return (
-        canDownloadAttachment: false,
-        accountId: accountId,
-        downloadUrl: downloadUrl,
-        blobId: blobId,
-      );
-    }
-
-    return (
-      canDownloadAttachment: true,
-      accountId: accountId,
-      downloadUrl: downloadUrl,
-      blobId: blobId,
-    );
-  }
-
-  Future<void> previewPDFFileAction(BuildContext context, Attachment attachment) async {
-    if (accountId == null || session == null) {
-      appToast.showToastErrorMessage(
-        context,
-        AppLocalizations.of(context).noPreviewAvailable);
-      return;
-    }
-
-    try {
-      final downloadUrl = session!.getDownloadUrl(
-        jmapUrl: dynamicUrlInterceptors.jmapUrl,
-      );
-
-      await Get.generalDialog(
-        barrierColor: Colors.black.withValues(alpha: 0.8),
-        pageBuilder: (_, __, ___) {
-          return PointerInterceptor(
-            child: PDFViewer(
-              attachment: attachment,
-              accountId: accountId!,
-              downloadUrl: downloadUrl,
-              downloadAction: _downloadPDFFile,
-              printAction: _printPDFFile,
-            )
-          );
-        },
-      );
-    } catch (e) {
-      logError('SingleEmailController::previewPDFFileAction(): $e');
-      consumeState(Stream.value(Left(PreviewEmailFromEmlFileFailure(e))));
-    }
-  }
-
-  void previewEMLFileAction(Id? blobId, AppLocalizations appLocalizations) {
-    SmartDialog.showLoading(
-      msg: appLocalizations.loadingPleaseWait,
-      maskColor: Colors.black38,
-    );
-
-    if (accountId == null) {
-      consumeState(Stream.value(Left(ParseEmailByBlobIdFailure(NotFoundAccountIdException()))));
-      return;
-    }
-
-    if (blobId == null) {
-      consumeState(Stream.value(Left(ParseEmailByBlobIdFailure(NotFoundBlobIdException([])))));
-      return;
-    }
-
-    consumeState(_parseEmailByBlobIdInteractor.execute(accountId!, blobId));
-  }
-
-  void _handleParseEmailByBlobIdSuccess(ParseEmailByBlobIdSuccess success) {
-    if (session == null) {
-      consumeState(Stream.value(Left(PreviewEmailFromEmlFileFailure(NotFoundSessionException()))));
-      return;
-    }
-
-    if (accountId == null) {
-      consumeState(Stream.value(Left(PreviewEmailFromEmlFileFailure(NotFoundAccountIdException()))));
-      return;
-    }
-
-    if (currentContext == null) {
-      consumeState(Stream.value(Left(PreviewEmailFromEmlFileFailure(NotFoundContextException()))));
-      return;
-    }
-
-    try {
-      consumeState(_previewEmailFromEmlFileInteractor.execute(
-        PreviewEmailEMLRequest(
-          accountId: accountId!,
-          ownEmailAddress: ownEmailAddress,
-          blobId: success.blobId,
-          email: success.email,
-          locale: Localizations.localeOf(currentContext!),
-          appLocalizations: AppLocalizations.of(currentContext!),
-          baseDownloadUrl: session!.getDownloadUrl(jmapUrl: dynamicUrlInterceptors.jmapUrl),
-        ),
-      ));
-    } catch (e) {
-      logError('SingleEmailController::_handleParseEmailByBlobIdSuccess(): $e');
-      consumeState(Stream.value(Left(PreviewEmailFromEmlFileFailure(e))));
-    }
-  }
-
-  void _handleParseEmailByBlobIdFailure(ParseEmailByBlobIdFailure failure) {
-    SmartDialog.dismiss();
-    toastManager.showMessageFailure(failure);
-  }
-
-  void _handlePreviewPDFFileFailure(PreviewPDFFileFailure failure) {
-    SmartDialog.dismiss();
-    toastManager.showMessageFailure(failure);
-  }
-
-  void _handlePreviewEmailFromEMLFileFailure(PreviewEmailFromEmlFileFailure failure) {
-    SmartDialog.dismiss();
-    toastManager.showMessageFailure(failure);
-  }
-
-  void _handlePreviewEmailFromEMLFileSuccess(PreviewEmailFromEmlFileSuccess success) {
-    SmartDialog.dismiss();
-
-    if (PlatformInfo.isWeb) {
-      bool isOpen = HtmlUtils.openNewWindowByUrl(
-        RouteUtils.createUrlWebLocationBar(
-          AppRoutes.emailEMLPreviewer,
-          previewId: success.emlPreviewer.id
-        ).toString(),
-      );
-
-      if (!isOpen) {
-        toastManager.showMessageFailure(PreviewEmailFromEmlFileFailure(CannotOpenNewWindowException()));
-      }
-    } else if (PlatformInfo.isMobile) {
-      if (currentContext == null) {
-        toastManager.showMessageFailure(PreviewEmailFromEmlFileFailure(NotFoundContextException()));
-        return;
-      }
-
-      if (PlatformInfo.isAndroid) {
-        showModalSheetToPreviewEMLAttachment(
-          currentContext!,
-          success.emlPreviewer,
-        );
-      } if (PlatformInfo.isIOS) {
-        showDialogToPreviewEMLAttachment(
-          currentContext!,
-          success.emlPreviewer,
-        );
-      }
-    }
-  }
-
-  void showModalSheetToPreviewEMLAttachment(
-    BuildContext context,
-    EMLPreviewer emlPreviewer,
-  ) {
-    showModalBottomSheet(
+    mailboxDashBoardController.previewAttachmentAction(
      context: context,
-      showDragHandle: true,
-      useSafeArea: true,
-      isScrollControlled: true,
-      shape: const RoundedRectangleBorder(
-        borderRadius: BorderRadius.only(
-          topLeft: Radius.circular(20.0),
-          topRight: Radius.circular(20.0),
-        ),
-      ),
-      builder: (_) {
-        return DraggableScrollableSheet(
-          initialChildSize: 1.0,
-          builder: (context, ___) => EmailPreviewerDialogView(
-            emlPreviewer: emlPreviewer,
-            imagePaths: imagePaths,
-            onMailtoDelegateAction: openMailToLink,
-            onPreviewEMLDelegateAction: (uri) => _openEMLPreviewer(context, uri),
-            onDownloadAttachmentDelegateAction: (uri) =>
-                _downloadAttachmentInEMLPreview(uri),
-          ),
+      attachment: attachment,
+      onDownloadAttachment: (attachment) {
+        handleDownloadAttachmentAction(
+          attachment,
+          previewerSupported: attachment.isPreviewSupported,
        );
      },
    );
  }

-  void showDialogToPreviewEMLAttachment(BuildContext context, EMLPreviewer emlPreviewer) {
-    Get.dialog(
-      EmailPreviewerDialogView(
-        emlPreviewer: emlPreviewer,
-        imagePaths: imagePaths,
-        onMailtoDelegateAction: openMailToLink,
-        onPreviewEMLDelegateAction: (uri) => _openEMLPreviewer(context, uri),
-        onDownloadAttachmentDelegateAction: (uri) =>
-            _downloadAttachmentInEMLPreview(uri),
-      ),
-      barrierColor: AppColor.colorDefaultCupertinoActionSheet,
-    );
-  }
-
  Future<void> _openEMLPreviewer(BuildContext context, Uri? uri) async {
    log('SingleEmailController::_openEMLPreviewer:uri = $uri');
    if (uri == null) return;
@@ -1975,7 +1664,10 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
    log('SingleEmailController::_openEMLPreviewer:blobId = $blobId');
    if (blobId.isEmpty) return;

-    previewEMLFileAction(Id(blobId), AppLocalizations.of(context));
+    mailboxDashBoardController.previewEMLFileAction(
+      appLocalizations: AppLocalizations.of(context),
+      blobId: Id(blobId),
+    );
  }

  Future<void> _downloadAttachmentInEMLPreview(Uri? uri) async {
@@ -2009,15 +1701,6 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
    );
  }

-  void _handleGetHtmlContentFromAttachmentFailure(GetHtmlContentFromAttachmentFailure failure) {
-    _updateAttachmentsViewState(failure.attachment.blobId, Left(failure));
-    if (currentOverlayContext != null && currentContext != null) {
-      appToast.showToastErrorMessage(
-        currentOverlayContext!,
-        AppLocalizations.of(currentContext!).thisHtmlAttachmentCannotBePreviewed);
-    }
-  }
-
  void onHtmlContentClippedAction(bool isClipped) {
    log('SingleEmailController::onHtmlContentClippedAction:isClipped = $isClipped');
    isEmailContentClipped.value = isClipped;
@@ -2054,13 +1737,17 @@ class SingleEmailController extends BaseController with AppLoaderMixin {
      onSuccess: (success) {
        SmartDialog.dismiss();

-        showDialogToPreviewEMLAttachment(
-          context,
-          EMLPreviewer(
+        mailboxDashBoardController.showDialogToPreviewEMLAttachment(
+          context: context,
+          emlPreviewer: EMLPreviewer(
            id: presentationEmail.id?.asString ?? '',
            title: presentationEmail.subject ?? '',
            content: success.messageDocument,
          ),
+          imagePaths: imagePaths,
+          onMailtoAction: openMailToLink,
+          onPreviewAction: (uri) => _openEMLPreviewer(context, uri),
+          onDownloadAction: _downloadAttachmentInEMLPreview,
        );
      },
      onFailure: (_) {