inventory grid: add delay before activating overlay

runelite-api/src/main/java/net/runelite/api/Client.java

@@ -1360,6 +1360,13 @@ public interface Client extends GameEngine
 	 */
 	boolean isInInstancedRegion();
 
+	/**
+	 * Get the number of client ticks an item has been pressed
+	 *
+	 * @return the number of client ticks an item has been pressed
+	 */
+	int getItemPressedDuration();
+
 	/**
 	 * Sets whether the client is hiding entities.
 	 * <p>

runelite-client/src/main/java/net/runelite/client/plugins/inventorygrid/InventoryGridOverlay.java

@@ -45,6 +45,7 @@ import net.runelite.client.ui.overlay.OverlayPosition;
 class InventoryGridOverlay extends Overlay
 {
 	private static final int INVENTORY_SIZE = 28;
+	private static final int DRAG_DELAY = 5;
 
 	private static final Color HIGHLIGHT = new Color(0, 255, 0, 45);
 	private static final Color GRID = new Color(255, 255, 255, 45);
@@ -70,7 +71,8 @@ class InventoryGridOverlay extends Overlay
 		final Widget if1DraggingWidget = client.getIf1DraggedWidget();
 		final Widget inventoryWidget = client.getWidget(WidgetInfo.INVENTORY);
 
-		if (if1DraggingWidget == null || if1DraggingWidget != inventoryWidget)
+		if (if1DraggingWidget == null || if1DraggingWidget != inventoryWidget
+			|| client.getItemPressedDuration() < DRAG_DELAY)
 		{
 			return null;
 		}

runescape-api/src/main/java/net/runelite/rs/api/RSClient.java

@@ -777,6 +777,7 @@ public interface RSClient extends RSGameEngine, Client
 	boolean isInInstancedRegion();
 
 	@Import("itemPressedDuration")
+	@Override
 	int getItemPressedDuration();
 
 	@Import("itemPressedDuration")