1 files changed, 39 insertions, 0 deletions
diff --git a/Widgets/Object.cpp b/Widgets/Object.cpp
index 57216928a2..a46657a6d0 100644
--- a/Widgets/Object.cpp
+++ b/Widgets/Object.cpp
@@ -1,7 +1,12 @@
 #include "Object.h"
 #include "Event.h"
+#include "EventLoop.h"
 #include <AK/Assertions.h>
 
+#ifdef USE_SDL
+#include <SDL.h>
+#endif
+
 Object::Object(Object* parent)
     : m_parent(parent)
 {
@@ -21,6 +26,8 @@ Object::~Object()
 void Object::event(Event& event)
 {
     switch (event.type()) {
+    case Event::Timer:
+        return onTimer(static_cast<TimerEvent&>(event));
     case Event::Invalid:
         ASSERT_NOT_REACHED();
         break;
@@ -44,3 +51,35 @@ void Object::removeChild(Object& object)
     }
     m_children = std::move(newList);
 }
+
+void Object::onTimer(TimerEvent&)
+{
+}
+
+#ifdef USE_SDL
+static dword sdlTimerCallback(dword interval, void* param)
+{
+    EventLoop::main().postEvent(static_cast<Object*>(param), make<TimerEvent>());
+    return interval;
+}
+#endif
+
+void Object::startTimer(int ms)
+{
+    if (m_timerID) {
+        printf("Object{%p} already has a timer!\n", this);
+        ASSERT_NOT_REACHED();
+    }
+#if USE_SDL
+    m_timerID = SDL_AddTimer(ms, sdlTimerCallback, this);
+#endif
+}
+
+void Object::stopTimer()
+{
+    if (!m_timerID)
+        return;
+    SDL_RemoveTimer(m_timerID);
+    m_timerID = 0;
+}
+