Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 171 insertions, 0 deletions

diff --git a/Source/WebCore/platform/PlatformWheelEvent.h b/Source/WebCore/platform/PlatformWheelEvent.h
new file mode 100644
index 0000000..6747392
--- /dev/null
+++ b/Source/WebCore/platform/PlatformWheelEvent.h
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2004, 2005, 2006, 2009 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR
+ * 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. 
+ */
+
+#ifndef PlatformWheelEvent_h
+#define PlatformWheelEvent_h
+
+#include "IntPoint.h"
+
+#if PLATFORM(GTK)
+typedef struct _GdkEventScroll GdkEventScroll;
+#endif
+
+#if PLATFORM(EFL)
+typedef struct _Evas_Event_Mouse_Wheel Evas_Event_Mouse_Wheel;
+#endif
+
+#if PLATFORM(QT)
+QT_BEGIN_NAMESPACE
+class QWheelEvent;
+class QGraphicsSceneWheelEvent;
+QT_END_NAMESPACE
+#endif
+
+#if PLATFORM(WIN)
+typedef struct HWND__* HWND;
+typedef unsigned WPARAM;
+typedef long LPARAM;
+#endif
+
+#if PLATFORM(WX)
+class wxMouseEvent;
+class wxPoint;
+#endif
+
+#if PLATFORM(HAIKU)
+class BMessage;
+#endif
+
+namespace WebCore {
+
+    class FloatPoint;
+    class FloatSize;
+
+    // Wheel events come in two flavors:
+    // The ScrollByPixelWheelEvent is a fine-grained event that specifies the precise number of pixels to scroll.  It is sent directly by MacBook touchpads on OS X,
+    // and synthesized in other cases where platforms generate line-by-line scrolling events.
+    // The ScrollByPageWheelEvent indicates that the wheel event should scroll an entire page.  In this case WebCore's built in paging behavior is used to page
+    // up and down (you get the same behavior as if the user was clicking in a scrollbar track to page up or page down).  Page scrolling only works in the vertical direction.
+    enum PlatformWheelEventGranularity { ScrollByPageWheelEvent, ScrollByPixelWheelEvent };
+    
+    class PlatformWheelEvent {
+    public:
+        PlatformWheelEvent()
+            : m_deltaX(0)
+            , m_deltaY(0)
+            , m_wheelTicksX(0)
+            , m_wheelTicksY(0)
+            , m_granularity(ScrollByPixelWheelEvent)
+            , m_isAccepted(false)
+            , m_shiftKey(false)
+            , m_ctrlKey(false)
+            , m_altKey(false)
+            , m_metaKey(false)
+        {
+        }
+
+        const IntPoint& pos() const { return m_position; } // PlatformWindow coordinates.
+        const IntPoint& globalPos() const { return m_globalPosition; } // Screen coordinates.
+
+        float deltaX() const { return m_deltaX; }
+        float deltaY() const { return m_deltaY; }
+
+        float wheelTicksX() const { return m_wheelTicksX; }
+        float wheelTicksY() const { return m_wheelTicksY; }
+
+        PlatformWheelEventGranularity granularity() const { return m_granularity; }
+
+        bool isAccepted() const { return m_isAccepted; }
+        bool shiftKey() const { return m_shiftKey; }
+        bool ctrlKey() const { return m_ctrlKey; }
+        bool altKey() const { return m_altKey; }
+        bool metaKey() const { return m_metaKey; }
+
+        int x() const { return m_position.x(); } // PlatformWindow coordinates.
+        int y() const { return m_position.y(); }
+        int globalX() const { return m_globalPosition.x(); } // Screen coordinates.
+        int globalY() const { return m_globalPosition.y(); }
+
+        void accept() { m_isAccepted = true; }
+        void ignore() { m_isAccepted = false; }
+
+        void turnVerticalTicksIntoHorizontal()
+        {
+            m_deltaX = m_deltaY;
+            m_deltaY = 0;
+
+            m_wheelTicksX = m_wheelTicksY;
+            m_wheelTicksY = 0;
+        }
+
+#if PLATFORM(GTK)
+        PlatformWheelEvent(GdkEventScroll*);
+#endif
+
+#if PLATFORM(EFL)
+        PlatformWheelEvent(const Evas_Event_Mouse_Wheel*);
+#endif
+
+#if PLATFORM(MAC) && defined(__OBJC__)
+        PlatformWheelEvent(NSEvent *, NSView *windowView);
+#endif
+
+#if PLATFORM(QT)
+        PlatformWheelEvent(QWheelEvent*);
+        PlatformWheelEvent(QGraphicsSceneWheelEvent*);
+        void applyDelta(int delta, Qt::Orientation);
+#endif
+
+#if PLATFORM(WIN)
+        PlatformWheelEvent(HWND, WPARAM, LPARAM, bool isMouseHWheel);
+        PlatformWheelEvent(HWND, const FloatSize& delta, const FloatPoint& location);
+#endif
+
+#if PLATFORM(WX)
+        PlatformWheelEvent(const wxMouseEvent&, const wxPoint&);
+#endif
+
+#if PLATFORM(HAIKU)
+        PlatformWheelEvent(BMessage*);
+#endif
+
+    protected:
+        IntPoint m_position;
+        IntPoint m_globalPosition;
+        float m_deltaX;
+        float m_deltaY;
+        float m_wheelTicksX;
+        float m_wheelTicksY;
+        PlatformWheelEventGranularity m_granularity;
+        bool m_isAccepted;
+        bool m_shiftKey;
+        bool m_ctrlKey;
+        bool m_altKey;
+        bool m_metaKey;
+    };
+
+} // namespace WebCore
+
+#endif // PlatformWheelEvent_h