From f717008bdefecc877155a8dd1c9230c9673b5e47 Mon Sep 17 00:00:00 2001
From: Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
Date: Tue, 7 Sep 2021 21:56:27 +0200
Subject: [PATCH] CatDog: Switch to new mouse-tracking method

---
 Userland/Demos/CatDog/CatDog.cpp | 18 ++++--------------
 Userland/Demos/CatDog/CatDog.h   |  7 ++++---
 Userland/Demos/CatDog/main.cpp   |  1 -
 3 files changed, 8 insertions(+), 18 deletions(-)

diff --git a/Userland/Demos/CatDog/CatDog.cpp b/Userland/Demos/CatDog/CatDog.cpp
index bccfaab3a25..9ee9a0fadf5 100644
--- a/Userland/Demos/CatDog/CatDog.cpp
+++ b/Userland/Demos/CatDog/CatDog.cpp
@@ -7,7 +7,6 @@
 #include "CatDog.h"
 #include <LibGUI/Painter.h>
 #include <LibGUI/Window.h>
-#include <LibGUI/WindowServerConnection.h>
 
 void CatDog::timer_event(Core::TimerEvent&)
 {
@@ -105,13 +104,14 @@ void CatDog::paint_event(GUI::PaintEvent& event)
     painter.blit(Gfx::IntPoint(0, 0), *m_curr_bmp, m_curr_bmp->rect());
 }
 
-void CatDog::mousemove_event(GUI::MouseEvent& event)
+void CatDog::track_mouse_move(Gfx::IntPoint const& point)
 {
     if (!m_roaming)
         return;
-    if (m_temp_pos == event.position())
+    Gfx::IntPoint relative_point = point - window()->position();
+    if (m_temp_pos == relative_point)
         return;
-    m_temp_pos = event.position();
+    m_temp_pos = relative_point;
     m_timer.start();
     if (m_sleeping) {
         m_curr_bmp = m_alert;
@@ -128,16 +128,6 @@ void CatDog::mousedown_event(GUI::MouseEvent& event)
         on_click();
 }
 
-void CatDog::track_cursor_globally()
-{
-    VERIFY(window());
-    auto window_id = window()->window_id();
-    VERIFY(window_id >= 0);
-
-    set_global_cursor_tracking(true);
-    GUI::WindowServerConnection::the().async_set_global_cursor_tracking(window_id, true);
-}
-
 void CatDog::context_menu_event(GUI::ContextMenuEvent& event)
 {
     if (on_context_menu_request)
diff --git a/Userland/Demos/CatDog/CatDog.h b/Userland/Demos/CatDog/CatDog.h
index bde31f3d6df..49f702b1726 100644
--- a/Userland/Demos/CatDog/CatDog.h
+++ b/Userland/Demos/CatDog/CatDog.h
@@ -6,22 +6,23 @@
 
 #include <LibCore/ElapsedTimer.h>
 #include <LibGUI/Menu.h>
+#include <LibGUI/MouseTracker.h>
 #include <LibGUI/Widget.h>
 #include <unistd.h>
 
 #pragma once
 
-class CatDog final : public GUI::Widget {
+class CatDog final : public GUI::Widget
+    , GUI::MouseTracker {
     C_OBJECT(CatDog);
 
 public:
     virtual void timer_event(Core::TimerEvent&) override;
     virtual void paint_event(GUI::PaintEvent& event) override;
-    virtual void mousemove_event(GUI::MouseEvent& event) override;
+    virtual void track_mouse_move(Gfx::IntPoint const& point) override;
     virtual void mousedown_event(GUI::MouseEvent& event) override;
     virtual void context_menu_event(GUI::ContextMenuEvent& event) override;
 
-    void track_cursor_globally();
     void start_the_timer() { m_timer.start(); }
 
     Function<void()> on_click;
diff --git a/Userland/Demos/CatDog/main.cpp b/Userland/Demos/CatDog/main.cpp
index ac6c2aae36f..380b68f7f41 100644
--- a/Userland/Demos/CatDog/main.cpp
+++ b/Userland/Demos/CatDog/main.cpp
@@ -59,7 +59,6 @@ int main(int argc, char** argv)
     context_menu->add_action(GUI::CommonActions::make_quit_action([&](auto&) { app->quit(); }));
 
     window->show();
-    catdog_widget.track_cursor_globally();
     catdog_widget.start_timer(250, Core::TimerShouldFireWhenNotVisible::Yes);
     catdog_widget.start_the_timer(); // timer for "mouse sleep detection"