From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001
From: Lorry Tar Creator <lorry-tar-importer@lorry>
Date: Tue, 27 Jun 2017 06:07:23 +0000
Subject: webkitgtk-2.16.5

---
 Source/WebCore/page/WheelEventTestTrigger.h | 65 +++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 Source/WebCore/page/WheelEventTestTrigger.h

(limited to 'Source/WebCore/page/WheelEventTestTrigger.h')

diff --git a/Source/WebCore/page/WheelEventTestTrigger.h b/Source/WebCore/page/WheelEventTestTrigger.h
new file mode 100644
index 000000000..c2b36ddcf
--- /dev/null
+++ b/Source/WebCore/page/WheelEventTestTrigger.h
@@ -0,0 +1,65 @@
+/*
+ * 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 <set>
+#include <wtf/HashMap.h>
+#include <wtf/Lock.h>
+#include <wtf/RunLoop.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(std::function<void()>);
+    WEBCORE_EXPORT void clearAllTestDeferrals();
+    
+    enum DeferTestTriggerReason {
+        RubberbandInProgress,
+        ScrollSnapInProgress,
+        ScrollingThreadSyncNeeded,
+        ContentScrollInProgress
+    };
+    typedef const void* ScrollableAreaIdentifier;
+    void WEBCORE_EXPORT deferTestsForReason(ScrollableAreaIdentifier, DeferTestTriggerReason);
+    void WEBCORE_EXPORT removeTestDeferralForReason(ScrollableAreaIdentifier, DeferTestTriggerReason);
+    void triggerTestTimerFired();
+
+private:
+    std::function<void()> m_testNotificationCallback;
+    RunLoop::Timer<WheelEventTestTrigger> m_testTriggerTimer;
+    mutable Lock m_testTriggerMutex;
+    WTF::HashMap<ScrollableAreaIdentifier, std::set<DeferTestTriggerReason>> m_deferTestTriggerReasons;
+};
+
+} // namespace WebCore
-- 
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