Merge pull request #3000 from swazrgb/overlay-focusable

client: Make overlays aware of mouse focus

runelite-client/src/main/java/net/runelite/client/ui/overlay/Overlay.java

@@ -97,6 +97,14 @@ public abstract class Overlay implements LayoutableRenderableEntity
 	{
 	}
 
+	public void onMouseEnter()
+	{
+	}
+
+	public void onMouseExit()
+	{
+	}
+
 	/**
 	 * Called when an overlay is dragged onto this, if dragTargetable is true.
 	 * Return true to consume the mouse event and prevent the other

runelite-client/src/main/java/net/runelite/client/ui/overlay/OverlayRenderer.java

@@ -107,6 +107,10 @@ public class OverlayRenderer extends MouseAdapter implements KeyListener
 	private boolean isResizeable;
 	private OverlayBounds emptySnapCorners, snapCorners;
 
+	// focused overlay
+	private Overlay focusedOverlay;
+	private Overlay prevFocusedOverlay;
+
 	@Inject
 	private OverlayRenderer(
 		final Client client,
@@ -174,6 +178,14 @@ public class OverlayRenderer extends MouseAdapter implements KeyListener
 	{
 		menuEntries = null;
 
+		if (focusedOverlay == null && prevFocusedOverlay != null)
+		{
+			prevFocusedOverlay.onMouseExit();
+		}
+
+		prevFocusedOverlay = focusedOverlay;
+		focusedOverlay = null;
+
 		if (client.getGameState() == GameState.LOGGED_IN)
 		{
 
@@ -352,6 +364,20 @@ public class OverlayRenderer extends MouseAdapter implements KeyListener
 							menuEntries = createRightClickMenuEntries(overlay);
 						}
 
+						if (focusedOverlay == null)
+						{
+							focusedOverlay = overlay;
+							if (focusedOverlay != prevFocusedOverlay)
+							{
+								if (prevFocusedOverlay != null)
+								{
+									prevFocusedOverlay.onMouseExit();
+								}
+
+								overlay.onMouseEnter();
+							}
+						}
+
 						overlay.onMouseOver();
 					}
 				}