Fixed tooltips sometimes ignoring manually set IsHidden values

CHANGELOG.md

@@ -70,6 +70,7 @@ Fixes
 - Fixed RootElement.CanSelectContent and Element.IsSelected returning incorrect results when CanBeSelected changes
 - Fixed dropdowns with some non-selectable children failing to navigate when using gamepad controls
 - Fixed UiMetrics.ForceAreaUpdateTime being inaccurate for nested elements
+- Fixed tooltips sometimes ignoring manually set IsHidden values
 
 Removals
 - Marked StyleProp equality members as obsolete

MLEM.Ui/Elements/Element.cs

@@ -151,7 +151,7 @@ namespace MLEM.Ui.Elements {
         /// Set this property to <c>true</c> to cause this element to be hidden.
         /// Hidden elements don't receive input events, aren't rendered and don't factor into auto-anchoring.
         /// </summary>
-        public bool IsHidden {
+        public virtual bool IsHidden {
             get => this.isHidden;
             set {
                 if (this.isHidden == value)

MLEM.Ui/Elements/Tooltip.cs

@@ -29,6 +29,9 @@ namespace MLEM.Ui.Elements {
         /// Note that <see cref="MouseOffset"/> is still applied with this value set.
         /// </summary>
         public virtual Vector2? SnapPosition { get; set; }
+        
+        /// <inheritdoc />
+        public override bool IsHidden => this.autoHidden || base.IsHidden;
 
         private TimeSpan delayCountdown;
         private bool autoHidden;
@@ -167,10 +170,8 @@ namespace MLEM.Ui.Elements {
                 }
             }
             if (this.autoHidden != shouldBeHidden) {
-                // only auto-hide if IsHidden wasn't changed manually
-                if (this.IsHidden == this.autoHidden)
-                    this.IsHidden = shouldBeHidden;
                 this.autoHidden = shouldBeHidden;
+                this.SetAreaDirty();
             }
         }