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26 #ifndef RunLoopObserver_h
27 #define RunLoopObserver_h
29 #include <CoreFoundation/CoreFoundation.h>
31 #include <wtf/Noncopyable.h>
32 #include <wtf/RetainPtr.h>
36 class RunLoopObserver {
37 WTF_MAKE_NONCOPYABLE(RunLoopObserver);
39 typedef std::function<void ()> RunLoopObserverCallback;
41 RunLoopObserver(CFIndex order, RunLoopObserverCallback callback)
43 , m_callback(callback)
46 WEBCORE_EXPORT ~RunLoopObserver();
48 WEBCORE_EXPORT void schedule(CFRunLoopRef = nullptr, CFRunLoopActivity = kCFRunLoopBeforeWaiting | kCFRunLoopExit);
49 WEBCORE_EXPORT void invalidate();
51 bool isScheduled() const { return m_runLoopObserver; }
53 enum class WellKnownRunLoopOrders : CFIndex {
54 CoreAnimationCommit = 2000000
58 void runLoopObserverFired();
61 static void runLoopObserverFired(CFRunLoopObserverRef, CFRunLoopActivity, void* context);
64 RunLoopObserverCallback m_callback;
65 RetainPtr<CFRunLoopObserverRef> m_runLoopObserver;
68 } // namespace WebCore
70 #endif // RunLoopObserver_h