TASK 51 slice 5: webcam Background section in the Layers properties — Remove/Blur PillToggles (radio-exclusive) + Strength slider; strength changes never blank the webcam (new variant inherits the same-effect frame + bitmap). TASK 51 built (Unit: bg-effects UI)

2026-10-09 10:31:11 -07:00
parent de22983b36
commit 352f117cb2
11 changed files with 169 additions and 49 deletions
@@ -0,0 +1,63 @@
+using System.Linq;
+using System.Xml.Linq;
+using Xunit;
+using ytLive.Models;
+
+namespace ytLive.Tests;
+
+/// <summary>TASK 51 slice 5 — the creator's UI spec (2026-10-09): Remove and Blur are two pill
+/// switches in the webcam's Layers properties that act as radio buttons (one on turns the other
+/// off; both off = no effect), plus a strength slider.</summary>
+public class WebcamBackgroundPillTests
+{
+    [Fact]
+    public void Remove_and_Blur_pills_are_radio_exclusive_and_wired_in_the_webcam_properties()
+    {
+        // Behaviour: the bools the pills bind to.
+        var config = new WebcamSceneConfig();
+        var raised = new System.Collections.Generic.List<string?>();
+        config.PropertyChanged += (_, e) => raised.Add(e.PropertyName);
+
+        config.RemoveBackground = true;
+        Assert.Equal(BackgroundEffect.Remove, config.BackgroundEffect);
+        Assert.True(config.HasBackgroundEffect);
+
+        raised.Clear();
+        config.BlurBackground = true;                      // turning Blur on turns Remove off
+        Assert.Equal(BackgroundEffect.Blur, config.BackgroundEffect);
+        Assert.False(config.RemoveBackground);
+        Assert.Contains(nameof(WebcamSceneConfig.RemoveBackground), raised); // Remove pill un-checks
+        Assert.Contains(nameof(WebcamSceneConfig.BlurBackground), raised);
+
+        config.RemoveBackground = false;                   // turning the INACTIVE pill off changes nothing
+        Assert.Equal(BackgroundEffect.Blur, config.BackgroundEffect);
+
+        config.BlurBackground = false;                     // turning the active pill off = None
+        Assert.Equal(BackgroundEffect.None, config.BackgroundEffect);
+        Assert.False(config.HasBackgroundEffect);
+
+        // Wiring: the two PillToggle switches + the strength slider live in the webcam's
+        // properties section of the Layers panel, bound to those properties.
+        XNamespace x = "http://schemas.microsoft.com/winfx/2006/xaml";
+        var doc = XDocument.Load(SourceAssert.RepoPath("Controls", "LeftPanel.xaml"));
+        var webcamPanel = doc.Descendants()
+            .Single(e => e.Name.LocalName == "StackPanel"
+                && ((string?)e.Attribute("Visibility") ?? "").Contains("SelectedElement.IsWebcam"));
+
+        XElement Named(string name) => webcamPanel.Descendants().Single(e => (string?)e.Attribute(x + "Name") == name);
+
+        foreach (var (pill, property) in new[] { ("RemoveBackgroundPill", "RemoveBackground"), ("BlurBackgroundPill", "BlurBackground") })
+        {
+            var toggle = Named(pill);
+            Assert.Equal("ToggleButton", toggle.Name.LocalName);
+            Assert.Contains("PillToggle", (string?)toggle.Attribute("Style"));
+            Assert.Contains($"SelectedElement.{property}", (string?)toggle.Attribute("IsChecked"));
+            Assert.Contains("TwoWay", (string?)toggle.Attribute("IsChecked"));
+        }
+
+        var slider = Named("BackgroundStrengthSlider");
+        Assert.Contains("SelectedElement.BackgroundStrength", (string?)slider.Attribute("Value"));
+        Assert.Equal("0", (string?)slider.Attribute("Minimum"));
+        Assert.Equal("1", (string?)slider.Attribute("Maximum"));
+    }
+}