Revert "[Peek] Use WebView2 for SVG preview to improve compatibility (#44209)"

This reverts commit d32ea86314.

src/common/FilePreviewCommon/MarkdownHelper.cs

@@ -39,7 +39,7 @@ namespace Microsoft.PowerToys.FilePreviewCommon
             var softlineBreak = new Markdig.Extensions.Hardlines.SoftlineBreakAsHardlineExtension();
 
             MarkdownPipelineBuilder pipelineBuilder;
-            pipelineBuilder = new MarkdownPipelineBuilder().UseAdvancedExtensions().UseEmojiAndSmiley().UseYamlFrontMatter().UseMathematics().DisableHtml();
+            pipelineBuilder = new MarkdownPipelineBuilder().UseAdvancedExtensions().UseEmojiAndSmiley().UseYamlFrontMatter().UseMathematics();
             pipelineBuilder.Extensions.Add(extension);
             pipelineBuilder.Extensions.Add(softlineBreak);
 

src/modules/peek/Peek.FilePreviewer/Previewers/MediaPreviewer/ImagePreviewer.cs

@@ -54,6 +54,8 @@ namespace Peek.FilePreviewer.Previewers
 
         private bool IsPng() => Item.Extension == ".png";
 
+        private bool IsSvg() => Item.Extension == ".svg";
+
         private bool IsQoi() => Item.Extension == ".qoi";
 
         private DispatcherQueue Dispatcher { get; }
@@ -61,7 +63,7 @@ namespace Peek.FilePreviewer.Previewers
         private static readonly HashSet<string> _supportedFileTypes =
             BitmapDecoder.GetDecoderInformationEnumerator()
                 .SelectMany(di => di.FileExtensions)
-                .Union([".qoi"])
+                .Union([".svg", ".qoi"])
                 .ToHashSet(StringComparer.OrdinalIgnoreCase);
 
         public static bool IsItemSupported(IFileSystemItem item)
@@ -73,7 +75,15 @@ namespace Peek.FilePreviewer.Previewers
         {
             cancellationToken.ThrowIfCancellationRequested();
 
-            if (IsQoi())
+            if (IsSvg())
+            {
+                var size = await Task.Run(Item.GetSvgSize);
+                if (size != null)
+                {
+                    ImageSize = size.Value;
+                }
+            }
+            else if (IsQoi())
             {
                 var size = await Task.Run(Item.GetQoiSize);
                 if (size != null)
@@ -166,16 +176,31 @@ namespace Peek.FilePreviewer.Previewers
                 {
                     cancellationToken.ThrowIfCancellationRequested();
 
-                    if (IsQoi())
+                    using FileStream stream = ReadHelper.OpenReadOnly(Item.Path);
+
+                    if (IsSvg())
+                    {
+                        var source = new SvgImageSource();
+                        source.RasterizePixelHeight = ImageSize?.Height ?? 0;
+                        source.RasterizePixelWidth = ImageSize?.Width ?? 0;
+
+                        var loadStatus = await source.SetSourceAsync(stream.AsRandomAccessStream());
+                        if (loadStatus != SvgImageSourceLoadStatus.Success)
+                        {
+                            Logger.LogError("Error loading SVG: " + loadStatus.ToString());
+                            throw new ImageLoadingException(nameof(source));
+                        }
+
+                        Preview = source;
+                    }
+                    else if (IsQoi())
                     {
-                        using FileStream stream = ReadHelper.OpenReadOnly(Item.Path);
                         using var bitmap = QoiImage.FromStream(stream);
 
                         Preview = await BitmapHelper.BitmapToImageSource(bitmap, true, cancellationToken);
                     }
                     else
                     {
-                        using FileStream stream = ReadHelper.OpenReadOnly(Item.Path);
                         Preview = new BitmapImage();
                         await ((BitmapImage)Preview).SetSourceAsync(stream.AsRandomAccessStream());
                     }

src/modules/peek/Peek.FilePreviewer/Previewers/WebBrowserPreviewer/WebBrowserPreviewer.cs

@@ -33,10 +33,6 @@ namespace Peek.FilePreviewer.Previewers
 
             // Markdown
             ".md",
-
-            // SVG - using WebView2 for better compatibility with complex SVGs
-            // (e.g., from Adobe Illustrator, Inkscape)
-            ".svg",
         };
 
         [ObservableProperty]
@@ -115,10 +111,9 @@ namespace Peek.FilePreviewer.Previewers
                 {
                     bool isHtml = File.Extension == ".html" || File.Extension == ".htm";
                     bool isMarkdown = File.Extension == ".md";
-                    bool isSvg = File.Extension == ".svg";
 
                     bool supportedByMonaco = MonacoHelper.SupportedMonacoFileTypes.Contains(File.Extension);
-                    bool useMonaco = supportedByMonaco && !isHtml && !isMarkdown && !isSvg;
+                    bool useMonaco = supportedByMonaco && !isHtml && !isMarkdown;
 
                     IsDevFilePreview = supportedByMonaco;
                     CustomContextMenu = useMonaco;
@@ -130,17 +125,9 @@ namespace Peek.FilePreviewer.Previewers
                     }
                     else if (isMarkdown)
                     {
-                        IsDevFilePreview = false;
                         var raw = await ReadHelper.Read(File.Path.ToString());
                         Preview = new Uri(MarkdownHelper.PreviewTempFile(raw, File.Path, TempFolderPath.Path));
                     }
-                    else if (isSvg)
-                    {
-                        // SVG files are rendered directly by WebView2 for better compatibility
-                        // with complex SVGs from Adobe Illustrator, Inkscape, etc.
-                        IsDevFilePreview = false;
-                        Preview = new Uri(File.Path);
-                    }
                     else
                     {
                         // Simple html file to preview. Shouldn't do things like enabling scripts or using a virtual mapped directory.