Add support for svgaplayerweb in SVGA viewer

QuickLook.Plugin/QuickLook.Plugin.ImageViewer/Webview/Svga/SvgaImagePanel.cs

@@ -15,21 +15,48 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+using Google.Protobuf.Compiler;
 using QuickLook.Plugin.ImageViewer.Webview.Svg;
 using System;
 using System.IO;
+using System.Runtime.InteropServices;
+using System.Text.Json;
+using System.Threading.Tasks;
+using System.Windows;
 
 namespace QuickLook.Plugin.ImageViewer.Webview.Svga;
 
-public class SvgaImagePanel : SvgImagePanel
+public class SvgaImagePanel(IWebMetaProvider metaWeb) : SvgImagePanel()
 {
+    private readonly IWebMetaProvider _metaWeb = metaWeb;
+
     public override void Preview(string path)
     {
         FallbackPath = Path.GetDirectoryName(path);
 
-        ObjectForScripting ??= new ScriptHandler(path);
+        ObjectForScripting ??= new ScriptHandler(path, _metaWeb);
 
         _homePage = _resources["/svga2html.html"];
         NavigateToUri(new Uri("file://quicklook/"));
     }
 }
+
+[ClassInterface(ClassInterfaceType.AutoDual)]
+[ComVisible(true)]
+public sealed class ScriptHandler(string path, IWebMetaProvider metaWeb)
+{
+    public string Path { get; } = path;
+    public IWebMetaProvider MetaWeb { get; } = metaWeb;
+
+    public async Task<string> GetPath()
+    {
+        return await Task.FromResult(new Uri(Path).AbsolutePath);
+    }
+
+    public async Task<string> GetSize()
+    {
+        var size = MetaWeb.GetSize();
+        string jsonString = JsonSerializer.Serialize(new { width = size.Width, height = size.Height });
+        return await Task.FromResult(jsonString);
+    }
+}