Plumb phase/momentum for WheelEvent.

third_party/WebKit/Source/core/events/WheelEvent.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 16 matching lines @@
 
 #include "core/CoreExport.h"
 #include "core/events/MouseEvent.h"
 #include "core/events/WheelEventInit.h"
 #include "platform/geometry/FloatPoint.h"
 
 namespace blink {
 
 class PlatformWheelEvent;
 
+#if OS(MACOSX)
+// Note: do to the use of static_casts to convert this type to
+// WebMouseWheelEvent::Phase, and PlatformWheelEventPhase to WheelEventPhase,
+// the definition that follows must be kept in sync with that used for the
+// corresponding types.
+enum WheelEventPhase {
+    WheelEventPhaseNone        = 0,
+    WheelEventPhaseBegan       = 1 << 0,
+    WheelEventPhaseStationary  = 1 << 1,
+    WheelEventPhaseChanged     = 1 << 2,
+    WheelEventPhaseEnded       = 1 << 3,
+    WheelEventPhaseCancelled   = 1 << 4,
+    WheelEventPhaseMayBegin    = 1 << 5,
+};
+#endif
+
 class CORE_EXPORT WheelEvent final : public MouseEvent {
     DEFINE_WRAPPERTYPEINFO();
 public:
     enum { TickMultiplier = 120 };
 
     enum DeltaMode {
         kDomDeltaPixel = 0,
         kDomDeltaLine,
         kDomDeltaPage
     };
 
     static WheelEvent* create()
     {
         return new WheelEvent;
     }
 
     static WheelEvent* create(const PlatformWheelEvent& platformEvent, AbstractView*);
 
     static WheelEvent* create(const AtomicString& type, const WheelEventInit& initializer)
     {
         return new WheelEvent(type, initializer);
     }
 
     static WheelEvent* create(const FloatPoint& wheelTicks,
         const FloatPoint& rawDelta, unsigned deltaMode, AbstractView* view,
         const IntPoint& screenLocation, const IntPoint& windowLocation,
         PlatformEvent::Modifiers modifiers, unsigned short buttons, double platformTimeStamp,
-        int resendingPluginId, bool hasPreciseScrollingDeltas, RailsMode railsMode, bool cancelable)
+        int resendingPluginId, bool hasPreciseScrollingDeltas, RailsMode railsMode, bool cancelable
+#if OS(MACOSX)
+        , WheelEventPhase phase, WheelEventPhase momentumPhase, bool canRubberbandLeft, bool canRubberbandRight
+#endif
+        )
     {
         return new WheelEvent(wheelTicks, rawDelta, deltaMode, view,
             screenLocation, windowLocation, modifiers, buttons, platformTimeStamp,
-            resendingPluginId, hasPreciseScrollingDeltas, railsMode, cancelable);
+            resendingPluginId, hasPreciseScrollingDeltas, railsMode, cancelable
+#if OS(MACOSX)
+            , phase, momentumPhase, canRubberbandLeft, canRubberbandRight
+#endif
+            );
     }
 
     double deltaX() const { return m_deltaX; } // Positive when scrolling right.
     double deltaY() const { return m_deltaY; } // Positive when scrolling down.
     double deltaZ() const { return m_deltaZ; }
     int wheelDelta() const { return wheelDeltaY() ? wheelDeltaY() : wheelDeltaX(); } // Deprecated.
     int wheelDeltaX() const { return m_wheelDelta.x(); } // Deprecated, negative when scrolling right.
     int wheelDeltaY() const { return m_wheelDelta.y(); } // Deprecated, negative when scrolling down.
     unsigned deltaMode() const { return m_deltaMode; }
     float ticksX() const { return static_cast<float>(m_wheelDelta.x()) / TickMultiplier; }
     float ticksY() const { return static_cast<float>(m_wheelDelta.y()) / TickMultiplier; }
     int resendingPluginId() const { return m_resendingPluginId; }
     bool hasPreciseScrollingDeltas() const { return m_hasPreciseScrollingDeltas; }
     RailsMode getRailsMode() const { return m_railsMode; }
 
     const AtomicString& interfaceName() const override;
     bool isMouseEvent() const override;
     bool isWheelEvent() const override;
 
     EventDispatchMediator* createMediator() override;
 
+#if OS(MACOSX)
+    WheelEventPhase phase() const { return m_phase; }
+    WheelEventPhase momentumPhase() const { return m_momentumPhase; }
+    bool canRubberbandLeft() const { return m_canRubberbandLeft; }
+    bool canRubberbandRight() const { return m_canRubberbandRight; }
+#endif
+
     DECLARE_VIRTUAL_TRACE();
 
 private:
     WheelEvent();
     WheelEvent(const AtomicString&, const WheelEventInit&);
     WheelEvent(const FloatPoint& wheelTicks, const FloatPoint& rawDelta,
         unsigned, AbstractView*, const IntPoint& screenLocation, const IntPoint& windowLocation,
         PlatformEvent::Modifiers, unsigned short buttons, double platformTimeStamp,
         int resendingPluginId, bool hasPreciseScrollingDeltas, RailsMode, bool cancelable);
+#if OS(MACOSX)
+    WheelEvent(const FloatPoint& wheelTicks, const FloatPoint& rawDelta,
+        unsigned, AbstractView*, const IntPoint& screenLocation, const IntPoint& windowLocation,
+        PlatformEvent::Modifiers, unsigned short buttons, double platformTimeStamp,
+        int resendingPluginId, bool hasPreciseScrollingDeltas, RailsMode, bool cancelable,
+        WheelEventPhase phase, WheelEventPhase momentumPhase, bool canRubberbandLeft, bool canRubberbandRight
+    );
+#endif
 
     IntPoint m_wheelDelta;
     double m_deltaX;
     double m_deltaY;
     double m_deltaZ;
     unsigned m_deltaMode;
     int m_resendingPluginId;
     bool m_hasPreciseScrollingDeltas;
     RailsMode m_railsMode;
+#if OS(MACOSX)
+    WheelEventPhase m_phase;
+    WheelEventPhase m_momentumPhase;
+    bool m_canRubberbandLeft;
+    bool m_canRubberbandRight;
+#endif
 };
 
 DEFINE_EVENT_TYPE_CASTS(WheelEvent);
 
 } // namespace blink
 
 #endif // WheelEvent_h