show focus target on visibility hover

LightlessSync/UI/CompactUI.cs

@@ -56,6 +56,7 @@ public class CompactUi : WindowMediatorSubscriberBase
     private readonly TagHandler _tagHandler;
     private readonly UiSharedService _uiSharedService;
     private readonly LightFinderService _broadcastService;
+    private readonly DalamudUtilService _dalamudUtilService;
 
     private List<IDrawFolder> _drawFolders;
     private Pair? _lastAddedUser;
@@ -68,6 +69,9 @@ public class CompactUi : WindowMediatorSubscriberBase
     private float _windowContentWidth;
     private readonly SeluneBrush _seluneBrush = new();
     private const float _connectButtonHighlightThickness = 14f;
+    private Pair? _focusedPair;
+    private Pair? _pendingFocusPair;
+    private int _pendingFocusFrame = -1;
 
     public CompactUi(
         ILogger<CompactUi> logger,
@@ -109,7 +113,9 @@ public class CompactUi : WindowMediatorSubscriberBase
         _ipcManager = ipcManager;
         _broadcastService = broadcastService;
         _pairLedger = pairLedger;
+        _dalamudUtilService = dalamudUtilService;
         _tabMenu = new TopTabMenu(Mediator, _apiController, _uiSharedService, pairRequestService, dalamudUtilService, lightlessNotificationService);
+        Mediator.Subscribe<PairFocusCharacterMessage>(this, msg => RegisterFocusCharacter(msg.Pair));
 
         AllowPinning = true;
         AllowClickthrough = false;
@@ -178,6 +184,12 @@ public class CompactUi : WindowMediatorSubscriberBase
         _lightlessMediator = mediator;
     }
 
+    public override void OnClose()
+    {
+        ForceReleaseFocus();
+        base.OnClose();
+    }
+
     protected override void DrawInternal()
     {
         var drawList = ImGui.GetWindowDrawList();
@@ -268,6 +280,8 @@ public class CompactUi : WindowMediatorSubscriberBase
             selune.Animate(ImGui.GetIO().DeltaTime);
         }
 
+        ProcessFocusTracker();
+
         var lastAddedPair = _pairUiService.GetLastAddedPair();
         if (_configService.Current.OpenPopupOnAdd && lastAddedPair is not null)
         {
@@ -1117,4 +1131,50 @@ public class CompactUi : WindowMediatorSubscriberBase
         _wasOpen = IsOpen;
         IsOpen = false;
     }
+
+    private void RegisterFocusCharacter(Pair pair)
+    {
+        _pendingFocusPair = pair;
+        _pendingFocusFrame = ImGui.GetFrameCount();
+    }
+
+    private void ProcessFocusTracker()
+    {
+        var frame = ImGui.GetFrameCount();
+        Pair? character = _pendingFocusFrame == frame ? _pendingFocusPair : null;
+        if (!ReferenceEquals(character, _focusedPair))
+        {
+            if (character is null)
+            {
+                _dalamudUtilService.ReleaseVisiblePairFocus();
+            }
+            else
+            {
+                _dalamudUtilService.FocusVisiblePair(character);
+            }
+
+            _focusedPair = character;
+        }
+
+        if (_pendingFocusFrame == frame)
+        {
+            _pendingFocusPair = null;
+            _pendingFocusFrame = -1;
+        }
+    }
+
+    private void ForceReleaseFocus()
+    {
+        if (_focusedPair is null)
+        {
+            _pendingFocusPair = null;
+            _pendingFocusFrame = -1;
+            return;
+        }
+
+        _dalamudUtilService.ReleaseVisiblePairFocus();
+        _focusedPair = null;
+        _pendingFocusPair = null;
+        _pendingFocusFrame = -1;
+    }
 }