TF-2520 Convert email object to html to perform print on browser
Signed-off-by: dab246 <tdvu@linagora.com>
This commit is contained in:
dab246
@@ -1,7 +1,10 @@
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import 'dart:convert';
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import 'dart:io';
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import 'package:core/domain/exceptions/download_file_exception.dart';
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import 'package:core/utils/app_logger.dart';
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import 'package:core/utils/platform_info.dart';
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import 'package:flutter/services.dart';
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import 'package:path_provider/path_provider.dart';
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class FileUtils {
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@@ -111,4 +114,11 @@ class FileUtils {
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logError('FileUtils::removeFolder():EXCEPTION: $e');
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}
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}
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Future<String> convertImageAssetToBase64(String assetImage) async {
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ByteData bytes = await rootBundle.load(assetImage);
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final buffer = bytes.buffer;
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final base64Data = base64Encode(Uint8List.view(buffer));
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return base64Data;
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}
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}
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@@ -91,4 +91,13 @@ class HtmlInteraction {
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});
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</script>
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''';
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static const String scriptHandleInvokePrinterOnBrowser = '''
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<script type="text/javascript">
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document.body.onload= function() {
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document.body.offsetHeight;
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window.print();
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};
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</script>
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''';
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}
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@@ -21,14 +21,47 @@ class HtmlTemplate {
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}
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''';
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static const String sampleHtmlDocument = '''
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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</head>
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<body</body>
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</html>
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static const String printDocumentCssStyle = '''
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<style>
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body,td,div,p,a,input {
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font-family: arial, sans-serif;
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}
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body, td {
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font-size: 13px;
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}
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a:link, a:active {
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color: #1155CC;
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text-decoration: none;
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}
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a:hover {
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text-decoration: underline;
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cursor: pointer;
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}
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a:visited{
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color: #6611CC;
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}
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img {
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border: 0px
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}
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pre {
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white-space: pre;
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white-space: -moz-pre-wrap;
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white-space: -o-pre-wrap;
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white-space: pre-wrap;
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word-wrap: break-word;
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max-width: 800px;
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overflow: auto;
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}
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.logo {
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position: relative;
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}
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</style>
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''';
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}
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@@ -1,8 +1,10 @@
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import 'package:core/data/constants/constant.dart';
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import 'package:core/presentation/extensions/html_extension.dart';
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import 'package:core/utils/app_logger.dart';
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import 'package:core/utils/platform_info.dart';
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import 'package:flutter/material.dart';
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import 'package:universal_html/html.dart' as html;
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class HtmlUtils {
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static String customCssStyleHtmlEditor({TextDirection direction = TextDirection.ltr}) {
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@@ -94,4 +96,31 @@ class HtmlUtils {
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</html>
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''';
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}
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static String createTemplateHtmlDocument({String? title}) {
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return '''
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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${title != null ? '<title>$title</title>' : ''}
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</head>
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<body></body>
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</html>
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''';
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}
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static String generateSVGImageData(String base64Data) => 'data:image/svg+xml;base64,$base64Data';
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static void openNewTabHtmlDocument(String htmlDocument) {
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final blob = html.Blob([htmlDocument], Constant.textHtmlMimeType);
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final url = html.Url.createObjectUrlFromBlob(blob);
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html.window.open(url, '_blank');
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html.Url.revokeObjectUrl(url);
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}
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}
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+195
-346
@@ -2,319 +2,166 @@
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import 'dart:async';
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import 'package:core/data/model/print_attachment.dart';
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import 'package:core/presentation/extensions/color_extension.dart';
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import 'package:core/presentation/resources/image_paths.dart';
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import 'package:core/utils/app_logger.dart';
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import 'package:flutter/services.dart';
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import 'package:htmltopdfwidgets/htmltopdfwidgets.dart' as pw;
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import 'package:intl/intl.dart';
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import 'package:printing/printing.dart';
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import 'package:core/utils/file_utils.dart';
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import 'package:core/utils/html/html_interaction.dart';
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import 'package:core/utils/html/html_template.dart';
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import 'package:core/utils/html/html_utils.dart';
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import 'package:html/dom.dart';
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import 'package:html/parser.dart';
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class PrintUtils {
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final pw.HTMLToPdf _htmlToPdf;
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final ImagePaths _imagePaths;
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final FileUtils _fileUtils;
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PrintUtils(this._htmlToPdf, this._imagePaths);
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PrintUtils(this._imagePaths, this._fileUtils);
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Future<pw.Widget> _createEmailContentWidget(String htmlDocument) async {
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try {
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final List<pw.Widget> bodyWidgets = await _htmlToPdf.convert(htmlDocument);
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return pw.Column(
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crossAxisAlignment: pw.CrossAxisAlignment.start,
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children: [
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...bodyWidgets
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]
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);
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} catch (e) {
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logError('PrintUtils::_createEmailContentWidget: Exception: $e');
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return pw.Text(htmlDocument);
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}
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}
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List<pw.Widget> _createBodyWidgets({
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required pw.Context context,
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required String logoAppSvg,
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Future<Element> _createUserInformationElement({
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required String appName,
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required String userName,
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required String title,
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required String htmlDocument,
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}) async {
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final logoBase64Data = await _fileUtils.convertImageAssetToBase64(_imagePaths.icTMailLogo);
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return Element.html('''
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tbody>
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<tr height="14px">
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<td width="40"><img src="${HtmlUtils.generateSVGImageData(logoBase64Data)}" width="40" height="40" class="logo" /></td>
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<td style="padding-left: 10px;font-size: 20px;color: #000;"><b>$appName</b></td>
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<td align="right" style="color: #777;">
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<b>$userName</b>
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</td>
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</tr>
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</tbody>
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</table>
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''');
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}
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Element get dividerElement => Element.html('<hr />');
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Element _createSubjectElement(String subject) {
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return Element.html('''
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<table width="100%" cellpadding="0" cellspacing="0" border="0">
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<tbody>
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<tr>
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<td>
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<font size="+1"><b>$subject</b></font><br />
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</td>
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</tr>
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</tbody>
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</table>
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''');
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}
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Element _createSenderElement({
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required String senderName,
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required String senderEmailAddress,
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required String dateTime,
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}) {
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return Element.html('''
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<tr>
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<td>
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<font size="-1"><b>$senderName </b><$senderEmailAddress></font>
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</td>
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<td align="right"><font size="-1">$dateTime</font></td>
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</tr>
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''');
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}
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String _createRecipientHtmlTag(String prefix, String emailAddress) {
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Element element = Element.html('<div class="${prefix.toLowerCase()}"></div>');
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element.text = '$prefix: $emailAddress';
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return element.outerHtml;
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}
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Element _createRecipientsElement({
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required String toPrefix,
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required String ccPrefix,
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required String bccPrefix,
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required String replyToPrefix,
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required String titleAttachment,
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required pw.Widget contentWidget,
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String? toAddress,
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String? ccAddress,
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String? bccAddress,
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String? replyToAddress,
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List<PrintAttachment>? listAttachment,
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}) {
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return [
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pw.Container(
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padding: const pw.EdgeInsets.symmetric(horizontal: 32),
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child: pw.Column(
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crossAxisAlignment: pw.CrossAxisAlignment.start,
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children: [
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_createUserInformationRow(
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context: context,
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logoAppSvg: logoAppSvg,
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appName: appName,
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userName: userName
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),
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_createPageDivider(),
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if (title.isNotEmpty)
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...[
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_createTitleRow(
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context: context,
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title: title
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),
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_createPageDivider(),
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],
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pw.SizedBox(height: 12),
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pw.Row(
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children: [
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pw.Expanded(
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child: _createSenderWidget(
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context: context,
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name: senderName,
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emailAddress: senderEmailAddress
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)
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),
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_createDateTimeWidget(
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context: context,
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dateTime: dateTime
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)
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]
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),
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if (replyToAddress?.isNotEmpty == true)
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_createRecipientRow(
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prefix: replyToPrefix,
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emailAddress: replyToAddress!
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),
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if (toAddress?.isNotEmpty == true)
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_createRecipientRow(
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prefix: toPrefix,
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emailAddress: toAddress!
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),
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if (ccAddress?.isNotEmpty == true)
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_createRecipientRow(
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prefix: ccPrefix,
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emailAddress: ccAddress!
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),
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if (bccAddress?.isNotEmpty == true)
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_createRecipientRow(
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prefix: bccPrefix,
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emailAddress: bccAddress!
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),
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pw.Padding(
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padding: const pw.EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 24),
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child: contentWidget
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),
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if (listAttachment?.isNotEmpty == true)
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...[
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_createPageDivider(),
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pw.SizedBox(height: 12),
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_createAttachmentTitle(
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context: context,
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title: titleAttachment,
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totalAttachments: listAttachment!.length
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),
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pw.SizedBox(height: 4),
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...listAttachment.map((attachment) => _createAttachmentRow(
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context: context,
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attachment: attachment
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))
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]
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]
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)
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)
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];
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return Element.html('''
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<tr>
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<td colspan="2" style="padding-bottom: 4px;" class="recipient">
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${replyToAddress?.isNotEmpty == true ? _createRecipientHtmlTag(replyToPrefix, replyToAddress!) : ''}
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${toAddress?.isNotEmpty == true ? _createRecipientHtmlTag(toPrefix, toAddress!) : ''}
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${ccAddress?.isNotEmpty == true ? _createRecipientHtmlTag(ccPrefix, ccAddress!) : ''}
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${bccAddress?.isNotEmpty == true ? _createRecipientHtmlTag(bccPrefix, bccAddress!) : ''}
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</td>
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</tr>
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''');
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}
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pw.Widget _createPageDivider() {
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return pw.Padding(
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padding: const pw.EdgeInsets.only(top: 12),
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child: pw.Divider()
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);
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Element _createEmailContentElement(String emailContent) {
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return Element.html('''
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<tr>
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<td colspan="2">
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<table width="100%" cellpadding="12" cellspacing="0" border="0">
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<tbody>
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<tr>
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<td>$emailContent</td>
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</tr>
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</tbody>
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</table>
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</td>
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</tr>
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''');
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}
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pw.Widget _createPageHeader({
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required pw.Context context,
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required String appName,
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required String title,
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required String locale,
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String _createTitleAttachmentHtmlTag({
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required int countAttachments,
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required String titleAttachment
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}) {
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final currentTime = DateFormat('MM/dd/yyyy, h:mm a', locale).format(DateTime.now());
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return pw.Padding(
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padding: const pw.EdgeInsets.all(20),
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child: pw.Row(
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children: [
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pw.Text(
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currentTime,
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style: pw.Theme.of(context).defaultTextStyle.copyWith(
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fontSize: 8,
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color: pw.PdfColor.fromInt(AppColor.colorTextBody.value)
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)
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),
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pw.SizedBox(width: 16),
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pw.Expanded(
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child: pw.Text(
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'$appName - $title',
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textAlign: pw.TextAlign.center,
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maxLines: 1,
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style: pw.Theme.of(context).defaultTextStyle.copyWith(
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fontSize: 8,
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color: pw.PdfColor.fromInt(AppColor.colorTextBody.value)
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)
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)
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),
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]
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)
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);
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return '<tr><td colspan="2"><b style="padding-left:3">$countAttachments $titleAttachment</b></td></tr>';
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}
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pw.Widget _createUserInformationRow({
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required pw.Context context,
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required String logoAppSvg,
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String _createAttachmentHtmlTag(PrintAttachment printAttachment) {
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return '''
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<tr>
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<td>
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<table cellspacing="0" cellpadding="0">
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<tbody>
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<tr>
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<td>
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<a target="_blank" href="">
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<img width="16" height="16" src="${HtmlUtils.generateSVGImageData(printAttachment.iconBase64Data)}" />
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</a>
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</td>
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<td width="7"></td>
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<td>
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<b>${printAttachment.name}</b><br />
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${printAttachment.size}
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</td>
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</tr>
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</tbody>
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</table>
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</td>
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</tr>
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''';
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}
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Element _createAttachmentsElement({
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required String titleAttachment,
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required List<PrintAttachment> listAttachment
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}) {
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return Element.html('''
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<table class="attachments" cellspacing="0" cellpadding="5" border="0">
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<tbody>
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${_createTitleAttachmentHtmlTag(countAttachments: listAttachment.length, titleAttachment: titleAttachment)}
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${listAttachment.map((printAttachment) => _createAttachmentHtmlTag(printAttachment)).toList().join('')}
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</tbody>
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</table>
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''');
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}
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Future<void> printEmail({
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required String appName,
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required String userName,
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}) {
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return pw.Row(
|
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children: [
|
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pw.SvgImage(
|
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svg: logoAppSvg,
|
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width: 32,
|
||||
height: 32
|
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),
|
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pw.SizedBox(width: 12),
|
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pw.Text(
|
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appName,
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style: pw.Theme.of(context).header0
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),
|
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pw.Spacer(),
|
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pw.SizedBox(width: 12),
|
||||
pw.Text(
|
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userName,
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style: pw.Theme.of(context).header4
|
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)
|
||||
]
|
||||
);
|
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}
|
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|
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pw.Widget _createTitleRow({
|
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required pw.Context context,
|
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required String title,
|
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}) {
|
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return pw.Padding(
|
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padding: const pw.EdgeInsets.only(top: 12),
|
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child: pw.Text(
|
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title,
|
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style: pw.Theme.of(context).header3
|
||||
)
|
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);
|
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}
|
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pw.Widget _createSenderWidget({
|
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required pw.Context context,
|
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required String name,
|
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required String emailAddress,
|
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}) {
|
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return pw.Row(
|
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children: [
|
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if (name.isNotEmpty)
|
||||
pw.Padding(
|
||||
padding: const pw.EdgeInsetsDirectional.only(end: 4),
|
||||
child: pw.Text(
|
||||
name,
|
||||
style: pw.Theme.of(context).header4
|
||||
)
|
||||
),
|
||||
pw.Text('<$emailAddress>')
|
||||
]
|
||||
);
|
||||
}
|
||||
|
||||
pw.Widget _createDateTimeWidget({
|
||||
required pw.Context context,
|
||||
required String dateTime,
|
||||
}) {
|
||||
return pw.Text(
|
||||
dateTime,
|
||||
style: pw.Theme.of(context).defaultTextStyle.copyWith(
|
||||
fontSize: 10,
|
||||
color: pw.PdfColor.fromInt(AppColor.colorTextBody.value)
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
pw.Widget _createRecipientRow({
|
||||
required String prefix,
|
||||
required String emailAddress,
|
||||
}) {
|
||||
return pw.Row(
|
||||
crossAxisAlignment: pw.CrossAxisAlignment.start,
|
||||
children: [
|
||||
pw.Text('$prefix:'),
|
||||
pw.SizedBox(width: 4),
|
||||
pw.Expanded(child: pw.Text(emailAddress))
|
||||
]
|
||||
);
|
||||
}
|
||||
|
||||
pw.Widget _createAttachmentTitle({
|
||||
required pw.Context context,
|
||||
required String title,
|
||||
required int totalAttachments,
|
||||
}) {
|
||||
return pw.Text(
|
||||
'$totalAttachments $title',
|
||||
style: pw.Theme.of(context).header4
|
||||
);
|
||||
}
|
||||
|
||||
pw.Widget _createAttachmentRow({
|
||||
required pw.Context context,
|
||||
required PrintAttachment attachment,
|
||||
}) {
|
||||
return pw.Padding(
|
||||
padding: const pw.EdgeInsets.only(top: 8),
|
||||
child: pw.Row(
|
||||
children: [
|
||||
pw.SvgImage(
|
||||
svg: attachment.iconSvg,
|
||||
width: 24,
|
||||
height: 24
|
||||
),
|
||||
pw.SizedBox(width: 8),
|
||||
pw.Expanded(
|
||||
child: pw.Column(
|
||||
mainAxisSize: pw.MainAxisSize.min,
|
||||
crossAxisAlignment: pw.CrossAxisAlignment.start,
|
||||
children: [
|
||||
pw.Text(
|
||||
attachment.name,
|
||||
style: pw.Theme.of(context).header4
|
||||
),
|
||||
pw.Text(attachment.size)
|
||||
]
|
||||
)
|
||||
),
|
||||
]
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
Future<bool> printEmailToPDF({
|
||||
required String appName,
|
||||
required String userName,
|
||||
required String title,
|
||||
required String subject,
|
||||
required String emailContent,
|
||||
required String senderName,
|
||||
required String senderEmailAddress,
|
||||
@@ -331,69 +178,71 @@ class PrintUtils {
|
||||
String? replyToAddress,
|
||||
List<PrintAttachment>? listAttachment,
|
||||
}) async {
|
||||
return await Printing.layoutPdf(onLayout: (pw.PdfPageFormat format) async {
|
||||
final googleInterRegularFont = await PdfGoogleFonts.interRegular();
|
||||
final googleInterBoldFont = await PdfGoogleFonts.interBold();
|
||||
final logoAppSvg = await rootBundle.loadString(_imagePaths.icTMailLogo);
|
||||
final contentWidget = await _createEmailContentWidget(emailContent);
|
||||
Document document = parse(HtmlUtils.createTemplateHtmlDocument(title: '$appName - $subject'));
|
||||
|
||||
final pdfDocument = pw.Document();
|
||||
Element bodyContainerElement = Element.html('<div class="body-container"></div>');
|
||||
Element mainContentElement = Element.html('<div class="main-content"></div>');
|
||||
Element messageElement = Element.html('<table width="100%" cellpadding="0" cellspacing="0" border="0" class="message"></table>');
|
||||
Element messageBodyElement = Element.html('<tbody></tbody>');
|
||||
|
||||
pdfDocument.addPage(
|
||||
pw.MultiPage(
|
||||
pageFormat: pw.PdfPageFormat.standard,
|
||||
orientation: pw.PageOrientation.portrait,
|
||||
theme: pw.ThemeData(
|
||||
defaultTextStyle: pw.TextStyle(
|
||||
font: googleInterRegularFont,
|
||||
fontSize: 12,
|
||||
color: pw.PdfColors.black
|
||||
),
|
||||
header3: pw.TextStyle(
|
||||
font: googleInterBoldFont,
|
||||
fontSize: 14,
|
||||
fontWeight: pw.FontWeight.bold,
|
||||
color: pw.PdfColors.black
|
||||
),
|
||||
header4: pw.TextStyle(
|
||||
font: googleInterBoldFont,
|
||||
fontSize: 12,
|
||||
fontWeight: pw.FontWeight.bold,
|
||||
color: pw.PdfColors.black
|
||||
),
|
||||
),
|
||||
margin: pw.EdgeInsets.zero,
|
||||
build: (context) => _createBodyWidgets(
|
||||
context: context,
|
||||
contentWidget: contentWidget,
|
||||
logoAppSvg: logoAppSvg,
|
||||
appName: appName,
|
||||
userName: userName,
|
||||
title: title,
|
||||
htmlDocument: emailContent,
|
||||
senderName: senderName,
|
||||
senderEmailAddress: senderEmailAddress,
|
||||
dateTime: dateTime,
|
||||
toPrefix: toPrefix,
|
||||
ccPrefix: ccPrefix,
|
||||
bccPrefix: toPrefix,
|
||||
replyToPrefix: replyToPrefix,
|
||||
toAddress: toAddress,
|
||||
ccAddress: ccAddress,
|
||||
bccAddress: bccAddress,
|
||||
replyToAddress: replyToAddress,
|
||||
titleAttachment: titleAttachment,
|
||||
listAttachment: listAttachment
|
||||
),
|
||||
header: (context) => _createPageHeader(
|
||||
context: context,
|
||||
appName: appName,
|
||||
title: title,
|
||||
locale: locale,
|
||||
),
|
||||
)
|
||||
);
|
||||
return await pdfDocument.save();
|
||||
});
|
||||
Element userInfoElement = await _createUserInformationElement(
|
||||
appName: appName,
|
||||
userName: userName);
|
||||
|
||||
Element subjectElement = _createSubjectElement(subject);
|
||||
|
||||
Element senderElement = _createSenderElement(
|
||||
senderName: senderName,
|
||||
senderEmailAddress: senderEmailAddress,
|
||||
dateTime: dateTime);
|
||||
|
||||
Element recipientsElement = _createRecipientsElement(
|
||||
toPrefix: toPrefix,
|
||||
ccPrefix: ccPrefix,
|
||||
bccPrefix: bccPrefix,
|
||||
replyToPrefix: replyToPrefix,
|
||||
toAddress: toAddress,
|
||||
ccAddress: ccAddress,
|
||||
bccAddress: bccAddress,
|
||||
replyToAddress: replyToAddress,
|
||||
);
|
||||
|
||||
Element emailContentElement = _createEmailContentElement(emailContent);
|
||||
|
||||
bodyContainerElement.append(userInfoElement);
|
||||
bodyContainerElement.append(dividerElement);
|
||||
|
||||
mainContentElement.append(subjectElement);
|
||||
mainContentElement.append(dividerElement);
|
||||
|
||||
messageBodyElement.append(senderElement);
|
||||
messageBodyElement.append(recipientsElement);
|
||||
messageBodyElement.append(emailContentElement);
|
||||
|
||||
messageElement.append(messageBodyElement);
|
||||
|
||||
mainContentElement.append(messageElement);
|
||||
|
||||
if (listAttachment?.isNotEmpty == true) {
|
||||
Element attachmentsElement = _createAttachmentsElement(
|
||||
titleAttachment: titleAttachment,
|
||||
listAttachment: listAttachment!);
|
||||
mainContentElement.append(dividerElement);
|
||||
mainContentElement.append(attachmentsElement);
|
||||
}
|
||||
|
||||
bodyContainerElement.append(mainContentElement);
|
||||
|
||||
document.body?.append(bodyContainerElement);
|
||||
|
||||
Element scriptElement = Element.html(HtmlInteraction.scriptHandleInvokePrinterOnBrowser);
|
||||
document.body?.append(scriptElement);
|
||||
|
||||
Element styleElement = Element.html(HtmlTemplate.printDocumentCssStyle);
|
||||
document.head?.append(styleElement);
|
||||
|
||||
final htmlDocument = document.outerHtml;
|
||||
|
||||
HtmlUtils.openNewTabHtmlDocument(htmlDocument);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user