fix(ui): restore retail vitals and window interactions

src/AcDream.App/UI/UiButton.cs

@@ -308,6 +308,15 @@ public sealed class UiButton : UiElement, IUiGlobalTimeListener, IUiDatStateful
     /// </summary>
     public bool SuppressSelfToggle { get; set; }
 
+    /// <summary>
+    /// Gives the owning controller exclusive responsibility for the rendered
+    /// state. Automatic pointer, selection, and enabled-state transitions no
+    /// longer replace <see cref="ActiveState"/>; input and click delivery remain
+    /// unchanged. This is used by buttons such as the radar UI lock whose face
+    /// represents durable application state rather than momentary interaction.
+    /// </summary>
+    public bool ControllerOwnsVisualState { get; set; }
+
     public bool Selected
     {
         get => _selected;
@@ -509,14 +518,15 @@ public sealed class UiButton : UiElement, IUiGlobalTimeListener, IUiDatStateful
 
     /// <summary>
     /// Retail's SetState media rule (<c>UIElement::SetState @0x00464E70</c>
-    /// tail, the <c>m_media.m_num != 0</c> gate @0x004651c0): a committed
-    /// state replaces the playing media ONLY when its media array is
-    /// non-empty — an authored empty-media state keeps the PREVIOUS media
-    /// (why an empty <c>Normal_pressed</c> never blanks a Normal-art
-    /// button), while an authored File=0 draw-nothing image counts as media
-    /// and clears the face (#416: the roster-row bar children's base
-    /// state). An UNAUTHORED committed state runs retail's state-0 arm
-    /// against the base media array. Face segments model retail's
+    /// tail plus <c>MediaMachine::Update_Image @0x00465870</c>): a committed
+    /// state replaces the playing IMAGE only when its effective media array
+    /// contains image media. An empty state—or a cursor/sound/message-only
+    /// state—keeps the PREVIOUS image (why the toolbar inventory button's
+    /// inherited non-image <c>Normal_pressed</c> media never blanks its closed
+    /// backpack art), while an authored File=0 draw-nothing image clears the
+    /// face (#416: the roster-row bar children's base state). An UNAUTHORED
+    /// committed state runs retail's state-0 arm against the base media array.
+    /// Face segments model retail's
     /// PassToChildren children, so each segment resolves the rule against
     /// its OWN authored states. Synced lazily on the first draw after any
     /// <see cref="ActiveState"/> write so every commit path (the visual
@@ -553,7 +563,7 @@ public sealed class UiButton : UiElement, IUiGlobalTimeListener, IUiDatStateful
         string current)
     {
         if (info.States.TryGetValue(committedId, out UiStateInfo? state))
-            return state.MediaCount != 0 ? committedName : current;
+            return HasImageMedia(info, state, committedName) ? committedName : current;
         // Synthetic/test infos may carry StateMedia without States entries;
         // a drawable entry for the committed name counts as authored media.
         if (info.StateMedia.ContainsKey(committedName))
@@ -562,10 +572,18 @@ public sealed class UiButton : UiElement, IUiGlobalTimeListener, IUiDatStateful
         // otherwise the previous media keeps playing.
         if (info.States.TryGetValue(
                 UiStateInfo.DirectStateId, out UiStateInfo? baseState))
-            return baseState.MediaCount != 0 ? "" : current;
+            return HasImageMedia(info, baseState, "") ? "" : current;
         return info.StateMedia.ContainsKey("") ? "" : current;
     }
 
+    private static bool HasImageMedia(
+        ElementInfo info,
+        UiStateInfo state,
+        string stateName)
+        // StateMedia keeps committed pre-ImageMediaCount fixtures and compact
+        // synthetic tests faithful for ordinary non-zero image entries.
+        => state.ImageMediaCount != 0 || info.StateMedia.ContainsKey(stateName);
+
     /// <summary>
     /// Returns the File id the media rule selected for this face; 0 draws
     /// nothing (an authored File=0 image reaches this as a media-state whose
@@ -1037,6 +1055,9 @@ public sealed class UiButton : UiElement, IUiGlobalTimeListener, IUiDatStateful
 
     private void UpdateVisualState()
     {
+        if (ControllerOwnsVisualState)
+            return;
+
         uint requested = ComputeRequestedStateId();
         if (_hasCustomSelectionPair)
         {