/* * Copyright (C) 2015 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include <functional> #include <wtf/Function.h> #include <wtf/HashMap.h> #include <wtf/Lock.h> #include <wtf/RunLoop.h> #include <wtf/StdSet.h> #include <wtf/ThreadSafeRefCounted.h> namespace WebCore { class WheelEventTestTrigger : public ThreadSafeRefCounted<WheelEventTestTrigger> { WTF_MAKE_NONCOPYABLE(WheelEventTestTrigger); WTF_MAKE_FAST_ALLOCATED; public: WheelEventTestTrigger(); WEBCORE_EXPORT void setTestCallbackAndStartNotificationTimer(WTF::Function<void()>&&); WEBCORE_EXPORT void clearAllTestDeferrals(); enum DeferTestTriggerReason { RubberbandInProgress, ScrollSnapInProgress, ScrollingThreadSyncNeeded, ContentScrollInProgress }; using DeferTestTriggerReasonSet = StdSet<DeferTestTriggerReason>; typedef const void* ScrollableAreaIdentifier; void WEBCORE_EXPORT deferTestsForReason(ScrollableAreaIdentifier, DeferTestTriggerReason); void WEBCORE_EXPORT removeTestDeferralForReason(ScrollableAreaIdentifier, DeferTestTriggerReason); void triggerTestTimerFired(); private: WTF::Function<void()> m_testNotificationCallback; RunLoop::Timer<WheelEventTestTrigger> m_testTriggerTimer; mutable Lock m_testTriggerMutex; WTF::HashMap<ScrollableAreaIdentifier, DeferTestTriggerReasonSet> m_deferTestTriggerReasons; }; } // namespace WebCore