Implement Provider Pattern for Changelog Viewers and Split WebView2 Package

.gitignore

@@ -22,6 +22,10 @@ bld/
 [Oo]bj/
 [Ll]og/
 
+build/
+# Keep nuspec files in build directories
+!**/build/*.nuspec
+
 # Visual Studio 2015 cache/options directory
 .vs/
 # Uncomment if you have tasks that create the project's static files in wwwroot

AutoUpdater.NET.Markdown/AutoUpdater.NET.Markdown.csproj

@@ -0,0 +1,36 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+	<OutputType>library</OutputType>
+	<TargetFrameworks>net462;netcoreapp3.1;net5.0-windows;net6.0-windows;net7.0-windows;net8.0-windows</TargetFrameworks>
+	<UseWindowsForms>true</UseWindowsForms>
+	<RootNamespace>AutoUpdaterDotNET.Markdown</RootNamespace>
+	<AssemblyTitle>AutoUpdater.NET.Markdown</AssemblyTitle>
+	<Company>RBSoft</Company>
+	<Product>AutoUpdater.NET.Markdown</Product>
+	<Copyright>Copyright © 2012-2025 RBSoft</Copyright>
+	<Version>1.9.5.1</Version>
+<!--	<SignAssembly>true</SignAssembly>-->
+<!--	<AssemblyOriginatorKeyFile>..\AutoUpdater.NET\AutoUpdater.NET.snk</AssemblyOriginatorKeyFile>-->
+	<NeutralLanguage>en</NeutralLanguage>
+	<PackageId>Autoupdater.NET.Markdown</PackageId>
+	<IncludeSymbols>true</IncludeSymbols>
+	<PackageLicenseExpression>MIT</PackageLicenseExpression>
+	<Title>AutoUpdater.NET Markdown Extension</Title>
+	<Authors>rbsoft</Authors>
+	<Description>Markdown extension for AutoUpdater.NET that provides markdown support.</Description>
+	<PackageProjectUrl>https://github.com/ravibpatel/AutoUpdater.NET</PackageProjectUrl>
+	<PackageTags>autoupdate updater markdown</PackageTags>
+	<PackageReleaseNotes>https://github.com/ravibpatel/AutoUpdater.NET/releases</PackageReleaseNotes>
+	<PackageOutputPath>build</PackageOutputPath>
+	<GenerateDocumentationFile>true</GenerateDocumentationFile>
+	<LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Markdig" Version="0.40.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AutoUpdater.NET\AutoUpdater.NET.csproj" />
+  </ItemGroup>
+</Project>

AutoUpdater.NET.Markdown/MarkdownViewer.cs

@@ -0,0 +1,154 @@
+using System.Windows.Forms;
+using AutoUpdaterDotNET.ChangelogViewers;
+using Markdig;
+
+namespace AutoUpdaterDotNET.Markdown;
+
+/// <summary>
+/// A changelog viewer that renders Markdown content using either a provided viewer or a WebBrowser control.
+/// </summary>
+public class MarkdownViewer : IChangelogViewer
+{
+    private readonly IChangelogViewer _innerViewer;
+    private readonly bool _cleanup;
+    private const string DefaultStyle = @"
+        <style>
+            @font-face {
+                font-family: 'Segoe UI Emoji';
+                src: local('Segoe UI Emoji');
+            }
+            body { 
+                font-family: 'Segoe UI Emoji', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+                font-size: 10.5pt;
+                line-height: 1.4;
+                word-wrap: break-word;
+                padding: 12px;
+                margin: 0;
+                background-color: #F4F4F4;
+                color: #000000;
+            }
+            h1, h2, h3, h4, h5, h6 {
+                margin-top: 16px;
+                margin-bottom: 8px;
+                font-weight: 600;
+                line-height: 1.25;
+            }
+            h1 { font-size: 20pt; }
+            h2 { font-size: 16pt; }
+            h3 { font-size: 14pt; }
+            h4 { font-size: 12pt; }
+            p { margin: 8px 0; }
+            code {
+                font-family: Consolas, 'Courier New', monospace;
+                padding: 2px 4px;
+                background-color: rgba(0, 0, 0, 0.03);
+                border-radius: 3px;
+                font-size: 10pt;
+            }
+            pre code {
+                display: block;
+                padding: 8px;
+                margin: 8px 0;
+                overflow: auto;
+                line-height: 1.45;
+            }
+            blockquote {
+                padding: 0 8px;
+                margin: 8px 0;
+                color: #666666;
+                border-left: 3px solid #CCCCCC;
+            }
+            ul, ol {
+                padding-left: 24px;
+                margin: 8px 0;
+            }
+            table {
+                border-spacing: 0;
+                border-collapse: collapse;
+                margin: 8px 0;
+                width: 100%;
+            }
+            table th, table td {
+                padding: 4px 8px;
+                border: 1px solid #CCCCCC;
+            }
+            table tr:nth-child(2n) {
+                background-color: rgba(0, 0, 0, 0.02);
+            }
+            hr {
+                height: 1px;
+                padding: 0;
+                margin: 16px 0;
+                background-color: #CCCCCC;
+                border: 0;
+            }
+            img { 
+                max-width: 100%;
+                height: auto;
+            }
+            a {
+                color: #0066CC;
+                text-decoration: none;
+            }
+            a:hover {
+                text-decoration: underline;
+            }
+        </style>";
+
+    /// <summary>
+    /// Initializes a new instance of the MarkdownViewer class.
+    /// </summary>
+    /// <param name="viewer">Optional viewer to use for rendering. If not provided, uses WebBrowser control.</param>
+    /// <param name="cleanup">Whether to clean up the inner viewer when this viewer is disposed.</param>
+    public MarkdownViewer(IChangelogViewer viewer = null, bool cleanup = true)
+    {
+        _innerViewer = viewer ?? new WebBrowserViewer();
+        _cleanup = cleanup || viewer == null;
+    }
+
+    /// <inheritdoc />
+    public Control Control => _innerViewer.Control;
+
+    /// <inheritdoc />
+    public bool SupportsUrl => true;
+
+    /// <inheritdoc />
+    public void LoadContent(string content)
+    {
+        if (_innerViewer is RichTextBoxViewer or MarkdownViewer)
+        {
+            _innerViewer.LoadContent(content);
+            return;
+        }
+
+        var pipeline = new MarkdownPipelineBuilder()
+            .UseAdvancedExtensions()
+            .Build();
+
+        var html = Markdig.Markdown.ToHtml(content, pipeline);
+        var fullHtml = $"<!DOCTYPE html><html><head>{DefaultStyle}</head><body>{html}</body></html>";
+
+        _innerViewer.LoadContent(fullHtml);
+    }
+
+    /// <inheritdoc />
+    public void LoadUrl(string url)
+    {
+        using var client = new System.Net.WebClient();
+        if (AutoUpdater.BasicAuthChangeLog != null)
+        {
+            var auth = (BasicAuthentication)AutoUpdater.BasicAuthChangeLog;
+            client.Credentials = new System.Net.NetworkCredential(auth.Username, auth.Password);
+        }
+
+        var content = client.DownloadString(url);
+        LoadContent(content);
+    }
+
+    /// <inheritdoc />
+    public void Cleanup()
+    {
+        if (_cleanup)
+            _innerViewer.Cleanup();
+    }
+}

AutoUpdater.NET.Markdown/MarkdownViewerProvider.cs

@@ -0,0 +1,39 @@
+using AutoUpdaterDotNET.ChangelogViewers;
+
+namespace AutoUpdaterDotNET.Markdown;
+
+/// <summary>
+/// Provides a Markdown viewer that uses a WebBrowser control or a user provided viewer to render Markdown content.
+/// </summary>
+public class MarkdownViewerProvider(int priority = 2) : IChangelogViewerProvider
+{
+    private readonly IChangelogViewer _viewer;
+
+    /// <summary>
+    /// Creates a new instance of the <see cref="MarkdownViewerProvider"/> with default priority 2.
+    /// </summary>
+    public MarkdownViewerProvider() : this(2) { }
+
+    /// <summary>
+    /// Creates a new instance of the <see cref="MarkdownViewerProvider"/> with a specific viewer.
+    /// </summary>
+    /// <param name="viewer">The viewer to use for rendering Markdown content.</param>
+    /// <param name="priority">The priority of this provider.</param>
+    public MarkdownViewerProvider(IChangelogViewer viewer, int priority = 2) : this(priority)
+    {
+        _viewer = viewer;
+    }
+
+    /// <summary>
+    /// Gets whether this provider is available. Always returns true as it uses WebBrowser as fallback.
+    /// </summary>
+    public bool IsAvailable => true;
+
+    /// <inheritdoc />
+    public int Priority { get; } = priority;
+
+    /// <summary>
+    /// Creates a new instance of the <see cref="MarkdownViewer"/> class.
+    /// </summary>
+    public IChangelogViewer CreateViewer() => new MarkdownViewer(_viewer);
+}

AutoUpdater.NET.Markdown/build/Autoupdater.NET.Markdown.nuspec

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
+    <metadata>
+        <id>Autoupdater.NET.Official.Markdown</id>
+        <version>1.9.5.1</version>
+        <title>AutoUpdater.NET Markdown Extension</title>
+        <authors>rbsoft</authors>
+        <requireLicenseAcceptance>false</requireLicenseAcceptance>
+        <license type="expression">MIT</license>
+        <readme>docs\README.md</readme>
+        <licenseUrl>https://licenses.nuget.org/MIT</licenseUrl>
+        <projectUrl>https://github.com/ravibpatel/AutoUpdater.NET</projectUrl>
+        <description>Markdown extension for AutoUpdater.NET that provides Markdown rendering capabilities for changelogs.</description>
+        <releaseNotes>https://github.com/ravibpatel/AutoUpdater.NET/releases</releaseNotes>
+        <copyright>Copyright 2012-2025 RBSoft</copyright>
+        <tags>autoupdate updater markdown changelog</tags>
+        <dependencies>
+            <group targetFramework=".NETFramework4.6.2">
+                <dependency id="Autoupdater.NET.Official" version="1.9.5.1" exclude="Build,Analyzers"/>
+                <dependency id="Markdig" version="0.40.0" exclude="Build,Analyzers"/>
+            </group>
+            <group targetFramework=".NETCoreApp3.1">
+                <dependency id="Autoupdater.NET.Official" version="1.9.5.1" exclude="Build,Analyzers"/>
+                <dependency id="Markdig" version="0.40.0" exclude="Build,Analyzers"/>
+            </group>
+            <group targetFramework="net5.0-windows7.0">
+                <dependency id="Autoupdater.NET.Official" version="1.9.5.1" exclude="Build,Analyzers"/>
+                <dependency id="Markdig" version="0.40.0" exclude="Build,Analyzers"/>
+            </group>
+            <group targetFramework="net6.0-windows7.0">
+                <dependency id="Autoupdater.NET.Official" version="1.9.5.1" exclude="Build,Analyzers"/>
+                <dependency id="Markdig" version="0.40.0" exclude="Build,Analyzers"/>
+            </group>
+            <group targetFramework="net7.0-windows7.0">
+                <dependency id="Autoupdater.NET.Official" version="1.9.5.1" exclude="Build,Analyzers"/>
+                <dependency id="Markdig" version="0.40.0" exclude="Build,Analyzers"/>
+            </group>
+            <group targetFramework="net8.0-windows7.0">
+                <dependency id="Autoupdater.NET.Official" version="1.9.5.1" exclude="Build,Analyzers"/>
+                <dependency id="Markdig" version="0.40.0" exclude="Build,Analyzers"/>
+            </group>
+        </dependencies>
+    </metadata>
+    <files>
+        <file src="..\..\README.md" target="docs\"/>
+        <file src="lib\net462\AutoUpdater.NET.Markdown.*" target="lib\net462" exclude="**\*.deps.json"/>
+        <file src="lib\netcoreapp3.1\AutoUpdater.NET.Markdown.*" target="lib\netcoreapp3.1" exclude="**\*.deps.json"/>
+        <file src="lib\net5.0-windows7.0\AutoUpdater.NET.Markdown.*" target="lib\net5.0-windows7.0" exclude="**\*.deps.json"/>
+        <file src="lib\net6.0-windows7.0\AutoUpdater.NET.Markdown.*" target="lib\net6.0-windows7.0" exclude="**\*.deps.json"/>
+        <file src="lib\net7.0-windows7.0\AutoUpdater.NET.Markdown.*" target="lib\net7.0-windows7.0" exclude="**\*.deps.json"/>
+        <file src="lib\net8.0-windows7.0\AutoUpdater.NET.Markdown.*" target="lib\net8.0-windows7.0" exclude="**\*.deps.json"/>
+    </files>
+</package>

AutoUpdater.NET.WebView2/AutoUpdater.NET.WebView2.csproj

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>library</OutputType>
+        <TargetFrameworks>net462;netcoreapp3.1;net5.0-windows;net6.0-windows;net7.0-windows;net8.0-windows</TargetFrameworks>
+        <UseWindowsForms>true</UseWindowsForms>
+        <RootNamespace>AutoUpdaterDotNET.WebView2</RootNamespace>
+        <AssemblyTitle>AutoUpdater.NET.WebView2</AssemblyTitle>
+        <Company>RBSoft</Company>
+        <Product>AutoUpdater.NET.WebView2</Product>
+        <Copyright>Copyright © 2012-2025 RBSoft</Copyright>
+        <Version>1.9.5.1</Version>
+        <SignAssembly>true</SignAssembly>
+        <AssemblyOriginatorKeyFile>..\AutoUpdater.NET\AutoUpdater.NET.snk</AssemblyOriginatorKeyFile>
+        <NeutralLanguage>en</NeutralLanguage>
+        <PackageId>Autoupdater.NET.WebView2</PackageId>
+        <IncludeSymbols>true</IncludeSymbols>
+        <PackageLicenseExpression>MIT</PackageLicenseExpression>
+        <Title>AutoUpdater.NET WebView2 Extension</Title>
+        <Authors>rbsoft</Authors>
+        <Description>WebView2 extension for AutoUpdater.NET that provides modern web rendering capabilities for changelogs.</Description>
+        <PackageProjectUrl>https://github.com/ravibpatel/AutoUpdater.NET</PackageProjectUrl>
+        <PackageTags>autoupdate updater webview2 edge</PackageTags>
+        <PackageReleaseNotes>https://github.com/ravibpatel/AutoUpdater.NET/releases</PackageReleaseNotes>
+        <PackageOutputPath>build</PackageOutputPath>
+        <GenerateDocumentationFile>true</GenerateDocumentationFile>
+        <LangVersion>latest</LangVersion>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3065.39" />
+        <ProjectReference Include="..\AutoUpdater.NET\AutoUpdater.NET.csproj" />
+    </ItemGroup>
+</Project>