TF-3416 Handle open EML attachment in EML previewer

core/lib/utils/html/html_utils.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:math';
 
 import 'js_interop_stub.dart' if (dart.library.html) 'dart:js_interop';
 import 'dart:typed_data';
@@ -11,6 +12,8 @@ import 'package:flutter/material.dart';
 import 'package:universal_html/html.dart' as html;
 
 class HtmlUtils {
+  static final random = Random();
+
   static const lineHeight100Percent = (
     script: '''
       document.querySelectorAll("*")
@@ -422,27 +425,62 @@ class HtmlUtils {
       fileSizeSpan.textContent = formatFileSize(bytesJs.length);''';
   }
 
-  static void openNewWindowByUrl(
+  static bool openNewWindowByUrl(
     String url,
     {
       int width = 800,
       int height = 600,
+      bool isFullScreen = false,
+      bool isCenter = true,
     }
-  ) async {
+  ) {
     try {
+      if (isFullScreen) {
+        final screenWidth = html.window.screen?.width;
+        final screenHeight = html.window.screen?.height;
+
+        final options = 'width=$screenWidth,height=$screenHeight';
+
+        html.window.open(url, '_blank', options);
+
+        html.Url.revokeObjectUrl(url);
+        return true;
+      }
+
       final screenWidth = html.window.screen?.width ?? width;
       final screenHeight = html.window.screen?.height ?? height;
 
-      final left = (screenWidth - width) ~/ 2;
-      final top = (screenHeight - height) ~/ 2;
+      int left, top;
+
+      if (isCenter) {
+        left = (screenWidth - width) ~/ 2;
+        top = (screenHeight - height) ~/ 2;
+      } else {
+        left = random.nextInt(screenWidth ~/ 2);
+        top = random.nextInt(screenHeight ~/ 2);
+      }
 
       final options = 'width=$width,height=$height,top=$top,left=$left';
 
       html.window.open(url, '_blank', options);
 
       html.Url.revokeObjectUrl(url);
+
+      return true;
     } catch (e) {
       logError('AppUtils::openNewWindowByUrl:Exception = $e');
+      return false;
+    }
+  }
+
+  static void setWindowBrowserTitle(String title) {
+    try {
+      final titleElements = html.window.document.getElementsByTagName('title');
+      if (titleElements.isNotEmpty) {
+        titleElements.first.text = title;
+      }
+    } catch (e) {
+      logError('AppUtils::setWindowBrowserTitle:Exception = $e');
     }
   }
 }

core/lib/utils/preview_eml_file_utils.dart

@@ -1,5 +1,5 @@
 
-import 'package:core/data/model/print_attachment.dart';
+import 'package:core/data/model/preview_attachment.dart';
 import 'package:core/utils/app_logger.dart';
 import 'package:core/utils/html/html_template.dart';
 import 'package:core/utils/html/html_utils.dart';
@@ -26,7 +26,7 @@ class PreviewEmlFileUtils {
     String? dateTime,
     String? attachmentIcon,
     String? emailContent,
-    List<PrintAttachment>? listAttachment,
+    List<PreviewAttachment>? listAttachment,
   }) {
     try {
       return Element.html('''
@@ -83,23 +83,38 @@ class PreviewEmlFileUtils {
     }
   }
 
-  String _createAttachmentHtmlTag(PrintAttachment printAttachment) {
+  String _createAttachmentHtmlTag(PreviewAttachment previewAttachment) {
     return '''
-      <div class="attachment-item">
-        <div class="icon">
-          <img width="16" height="16" src="${HtmlUtils.generateSVGImageData(printAttachment.iconBase64Data)}"  alt="attachment-icon"/>
-        </div>
-        <div class="file-details">
-          <div class="file-name">${printAttachment.name}</div>
-          <div class="file-size">${printAttachment.size}</div>
-        </div>
-      </div>
+      ${previewAttachment.link?.isNotEmpty == true
+          ? '''
+              <a href="${previewAttachment.link}" class="attachment-item">
+                <div class="icon">
+                  <img width="16" height="16" src="${HtmlUtils.generateSVGImageData(previewAttachment.iconBase64Data)}"  alt="attachment-icon"/>
+                </div>
+                <div class="file-details">
+                  <div class="file-name">${previewAttachment.name}</div>
+                  <div class="file-size">${previewAttachment.size}</div>
+                </div>
+              </a>
+            '''
+          : '''
+              <div class="attachment-item">
+                <div class="icon">
+                  <img width="16" height="16" src="${HtmlUtils.generateSVGImageData(previewAttachment.iconBase64Data)}"  alt="attachment-icon"/>
+                </div>
+                <div class="file-details">
+                  <div class="file-name">${previewAttachment.name}</div>
+                  <div class="file-size">${previewAttachment.size}</div>
+                </div>
+              </div>
+            '''}
+      
     ''';
   }
 
   String _createAttachmentsElement({
     required String titleAttachment,
-    required List<PrintAttachment> listAttachment
+    required List<PreviewAttachment> listAttachment
   }) {
     try {
       return '''
@@ -137,7 +152,7 @@ class PreviewEmlFileUtils {
     String? ccAddress,
     String? bccAddress,
     String? replyToAddress,
-    List<PrintAttachment>? listAttachment,
+    List<PreviewAttachment>? listAttachment,
   }) {
     Document document = parse(HtmlUtils.createTemplateHtmlDocument(title: '$subject - $userName'));