From 5486c03db467a58b8b368d83975c356dc4de4682 Mon Sep 17 00:00:00 2001
From: ravi688 <rp0412204@gmail.com>
Date: Wed, 4 Sep 2024 03:24:32 +0530
Subject: [PATCH] [SUTK] Container is now Activatable and Optimized input event
 handler objects

---
 sutk/include/sutk/Container.hpp               |  3 ++-
 sutk/include/sutk/InputEventHandlerObject.hpp | 17 ++++++++++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/sutk/include/sutk/Container.hpp b/sutk/include/sutk/Container.hpp
index 9d0a34ee..af401a39 100644
--- a/sutk/include/sutk/Container.hpp
+++ b/sutk/include/sutk/Container.hpp
@@ -6,6 +6,7 @@
 
 #include <sutk/IDebuggable.hpp> // for SUTK::IDebuggable class
 #include <sutk/AnchorRect.hpp> // for SUTK::AnchorRect class
+#include <sutk/Activatable.hpp> // for SUTK::Activatable class
 
 namespace SUTK
 {
@@ -24,7 +25,7 @@ namespace SUTK
 	class RenderRectOutline;
 	class RenderableContainer;
 
-	class Container : public UIDriverObject, public IDebuggable
+	class Container : public UIDriverObject, public IDebuggable, public Activatable
 	{
 	private:
 		std::vector<Container*> m_containers;
diff --git a/sutk/include/sutk/InputEventHandlerObject.hpp b/sutk/include/sutk/InputEventHandlerObject.hpp
index 6d174767..8d6a8705 100644
--- a/sutk/include/sutk/InputEventHandlerObject.hpp
+++ b/sutk/include/sutk/InputEventHandlerObject.hpp
@@ -59,7 +59,22 @@ namespace SUTK
 
 	protected:
 		TInputEventHandlerContainerObject(InputEventType& event) noexcept : TInputEventHandlerObject<InputEventType>(event), m_container(NULL) { }
-		TInputEventHandlerContainerObject(InputEventType& event, Container* container) noexcept : TInputEventHandlerObject<InputEventType>(event), m_container(container) { }
+		TInputEventHandlerContainerObject(InputEventType& event, Container* container) noexcept : TInputEventHandlerObject<InputEventType>(event), m_container(container)
+		{
+			if(m_container != NULL)
+			{
+				// If the container has been deactivated then sleep the subscription,
+				// Or if the container has been activated then awake the subscription
+				// This saves CPU cycles
+				m_container->getOnActiveEvent().subscribe([this](Activatable* _, bool isActive)
+				{
+					if(isActive)
+						this->awake();
+					else
+						this->sleep();
+				});
+			}
+		}
 		bool isInside(Vec2Df point) const noexcept
 		{
 			return (m_container != NULL) ? m_container->containsGlobalCoords(point) : true;