extension: Do not loadLibrary again for the same preview #7

roxk · Apr 2, 2024 · e053e42 · e053e42
1 parent caf201a
commit e053e42
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/extensions/WinUI3XamlPreviewVS2022/WinUI3XamlPreviewVS2022/OpenLivePreview.cs b/extensions/WinUI3XamlPreviewVS2022/WinUI3XamlPreviewVS2022/OpenLivePreview.cs
@@ -260,10 +260,14 @@ private async Task<List<string>> GetDllPathsAsync(Project project, CancellationT
         private async Task<(string appPath, string host, string quries)> OpenDllProjectAsync(Project docProject)
         {
             var source = new CancellationTokenSource();
-            var dllPaths = await GetDllPathsAsync(docProject, source.Token);
             var projectName = await docProject.GetAttributeAsync("ProjectName");
             var outDir = await docProject.GetAttributeAsync("OutDir");
             var appPath = await GetUnpackagedAppNameAsync(docProject, $"{outDir}..\\{projectName}_Preview", "WinUI3XamlPreview_DllLoader");
+            if (_lastOpenedInfo?.AppPath == appPath)
+            {
+                return (appPath, "show", "");
+            }
+            var dllPaths = await GetDllPathsAsync(docProject, source.Token);
             return (appPath, "loadLibrary", string.Join("&", dllPaths.Select(x => $"dllPath={WebUtility.UrlEncode(x)}")));
         }