Web source: off-screen WebView2 capture + layout persistence + transparent bg

Bundle exception (2026-08-27): this lands prior-session work plus today's transparency fix as one commit per creator instruction. WebView2Manager (new): off-screen WebView2 control parked at -5000/-5000 in the window's visual tree, captures via CapturePreviewAsync every 100 ms into a BGRA8 VideoFrame. Source Width/Height sync to the control via PropertyChanged. JS transparent-background injection runs on every NavigationStarting/NavigationCompleted so the page's own CSS does not paint white over the capture. Transparency fix: DefaultBackgroundColor = System.Drawing.Color.Transparent set on the WPF control before EnsureCoreWebView2Async. The WPF SDK doc says the value is forwarded to the controller on init; the IDL (ICoreWebView2- Controller2) confirms alpha=0 makes the capture alpha-preserving. The prior-session 'CoreWebView2.BackgroundColor' path was the wrong property name and has been replaced. LayoutStore: WebUri column added (idempotent ALTER TABLE) and round-tripped on save/load (schema v11). MainViewModel: WebView2Manager constructed on Loaded; loaded web sources re-registered; Source.WebUri PropertyChanged forwards to manager. MainWindow: off-screen host Canvas added to visual tree. Tests: 3 scale-sync + WebView2_DefaultBackgroundColor_Is_Transparent + LayoutStorePersistenceTests.WebSource_WebUri_Persists. 234/236 pass (2 pre-existing failures unchanged). Scale bug (DPI/physical-pixel mismatch) still open.
2026-08-27 08:52:39 -07:00
parent f81048849a
commit fd6e02b687
10 changed files with 595 additions and 57 deletions
@@ -352,4 +352,40 @@ public class LayoutStorePersistenceTests
            try { File.Delete(path); } catch { /* best-effort cleanup */ }
        }
    }
+
+    [Fact]
+    public void WebSource_WebUri_Persists()
+    {
+        var path = Path.Combine(Path.GetTempPath(), $"ytLlive-layout-{Guid.NewGuid():N}.db");
+        try
+        {
+            using var store = new LayoutStore(path);
+            var scene = new Scene { Name = "Main" };
+            var source = new Source
+            {
+                Name = "Overlay",
+                Type = SourceType.WebSource,
+                Width = 640,
+                Height = 480,
+                WebUri = "https://widgets.streamelements.com/host/661d8622ff009005bd74b8bc/d4fb46cd-4cc1-44eb-a800-3a415ca6233f/yTZ18ad1MOF3Vzii6kH2z6D0Rxuv7IUnXPl0ExeJM5EAizLk",
+            };
+            scene.Elements.Add(source);
+
+            store.Save(new[] { scene }, null, null);
+
+            var reloaded = store.Load();
+            var loaded = Assert.Single(reloaded[0].Elements);
+            Assert.IsType<Source>(loaded);
+            var loadedSource = (Source)loaded;
+            Assert.Equal(SourceType.WebSource, loadedSource.Type);
+            Assert.Equal(640, loadedSource.Width);
+            Assert.Equal(480, loadedSource.Height);
+            Assert.Equal("https://widgets.streamelements.com/host/661d8622ff009005bd74b8bc/d4fb46cd-4cc1-44eb-a800-3a415ca6233f/yTZ18ad1MOF3Vzii6kH2z6D0Rxuv7IUnXPl0ExeJM5EAizLk", loadedSource.WebUri);
+        }
+        finally
+        {
+            SqliteConnection.ClearAllPools();
+            try { File.Delete(path); } catch { /* best-effort cleanup */ }
+        }
+    }
 }