feat(audio dock): the shell — 168px, auto-collapsing, replacing the empty bottom bar

Unit 4 of the sound-bar refactor. `Controls/AudioDock` takes the bottom row that held the empty `BottomBar` spacer (deleted): four bay containers (MIC / GAME / TRAX / LIP-SYNC) above a 36px master strip, all token-styled. Height comes from `Models/AudioDockLayout`, not from a setting: 168px normally, 36px below a 900px window height. At the 1366×768 minimum a full dock leaves ~398px for the preview, so the collapse is mandatory, not cosmetic. The dock listens to its window's SizeChanged and re-applies. Nothing here pretends to be a meter yet — the bays and the master readouts fill in over the next units, each with its own test. Guard: AudioDockLayoutTests pins both sides of the threshold (768 collapsed, 1040 expanded), the boundary itself, and the two heights as the design's numbers.
2026-10-30 12:37:17 -07:00
parent 0f62e55474
commit 1a9e8b8d36
7 changed files with 169 additions and 22 deletions
@@ -0,0 +1,55 @@
+using System.Windows;
+using System.Windows.Controls;
+using ytLive.Models;
+
+namespace ytLive.Controls;
+
+/// <summary>The sound bars (creator ruling 2026-10-30). This unit owns the SHELL: the piece of the
+/// window it occupies and the collapse behaviour. The bays and the master readouts fill in over
+/// the following units, so nothing here pretends to be a working meter.
+///
+/// <para>Collapse is driven by the window height, not a user setting: at 1366×768 a full dock
+/// squeezes the preview, and the creator should not have to manage that.</para></summary>
+public partial class AudioDock : UserControl
+{
+    private Window? _window;
+
+    public AudioDock()
+    {
+        InitializeComponent();
+        Loaded += OnLoaded;
+        Unloaded += OnUnloaded;
+    }
+
+    /// <summary>Is the dock showing only the telemetry strip?</summary>
+    internal bool IsCollapsed { get; private set; }
+
+    /// <summary>Test seam: the same code the window's SizeChanged runs, without a window.</summary>
+    internal void ApplyWindowHeight(double windowHeight)
+    {
+        var collapsed = AudioDockLayout.IsCollapsed(windowHeight);
+        IsCollapsed = collapsed;
+        Height = AudioDockLayout.HeightFor(windowHeight);
+        Bays.Visibility = collapsed ? Visibility.Collapsed : Visibility.Visible;
+    }
+
+    private void OnLoaded(object sender, RoutedEventArgs e)
+    {
+        _window = Window.GetWindow(this);
+        if (_window == null)
+        {
+            ApplyWindowHeight(AudioDockLayout.CollapseBelowHeight);   // no host: show the dock
+            return;
+        }
+        _window.SizeChanged += OnWindowSizeChanged;
+        ApplyWindowHeight(_window.ActualHeight > 0 ? _window.ActualHeight : _window.Height);
+    }
+
+    private void OnUnloaded(object sender, RoutedEventArgs e)
+    {
+        if (_window != null) _window.SizeChanged -= OnWindowSizeChanged;
+        _window = null;
+    }
+
+    private void OnWindowSizeChanged(object sender, SizeChangedEventArgs e) => ApplyWindowHeight(e.NewSize.Height);
+}