diff -r 000000000000 -r 4f2f89ce4247 WebCore/platform/Cursor.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/Cursor.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,522 @@
+/*
+ * Copyright (C) 2010 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 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 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. 
+ */
+
+#include "config.h"
+#include "Cursor.h"
+
+#include "Image.h"
+
+namespace WebCore {
+
+IntPoint determineHotSpot(Image* image, const IntPoint& specifiedHotSpot)
+{
+    // Hot spot must be inside cursor rectangle.
+    IntRect imageRect = image->rect();
+    if (imageRect.contains(specifiedHotSpot))
+        return specifiedHotSpot;
+
+    // If hot spot is not specified externally, it can be extracted from some image formats (e.g. .cur).
+    IntPoint intrinsicHotSpot;
+    bool imageHasIntrinsicHotSpot = image->getHotSpot(intrinsicHotSpot);
+    if (imageHasIntrinsicHotSpot && imageRect.contains(intrinsicHotSpot))
+        return intrinsicHotSpot;
+
+    return IntPoint();
+}
+
+const Cursor& Cursor::fromType(Cursor::Type type)
+{
+    switch (type) {
+    case Cursor::Pointer:
+        return pointerCursor();
+    case Cursor::Cross:
+        return crossCursor();
+    case Cursor::Hand:
+        return handCursor();
+    case Cursor::IBeam:
+        return iBeamCursor();
+    case Cursor::Wait:
+        return waitCursor();
+    case Cursor::Help:
+        return helpCursor();
+    case Cursor::EastResize:
+        return eastResizeCursor();
+    case Cursor::NorthResize:
+        return northResizeCursor();
+    case Cursor::NorthEastResize:
+        return northEastResizeCursor();
+    case Cursor::NorthWestResize:
+        return northWestResizeCursor();
+    case Cursor::SouthResize:
+        return southResizeCursor();
+    case Cursor::SouthEastResize:
+        return southEastResizeCursor();
+    case Cursor::SouthWestResize:
+        return southWestResizeCursor();
+    case Cursor::WestResize:
+        return westResizeCursor();
+    case Cursor::NorthSouthResize:
+        return northSouthResizeCursor();
+    case Cursor::EastWestResize:
+        return eastWestResizeCursor();
+    case Cursor::NorthEastSouthWestResize:
+        return northEastSouthWestResizeCursor();
+    case Cursor::NorthWestSouthEastResize:
+        return northWestSouthEastResizeCursor();
+    case Cursor::ColumnResize:
+        return columnResizeCursor();
+    case Cursor::RowResize:
+        return rowResizeCursor();
+    case Cursor::MiddlePanning:
+        return middlePanningCursor();
+    case Cursor::EastPanning:
+        return eastPanningCursor();
+    case Cursor::NorthPanning:
+        return northPanningCursor();
+    case Cursor::NorthEastPanning:
+        return northEastPanningCursor();
+    case Cursor::NorthWestPanning:
+        return northWestPanningCursor();
+    case Cursor::SouthPanning:
+        return southPanningCursor();
+    case Cursor::SouthEastPanning:
+        return southEastPanningCursor();
+    case Cursor::SouthWestPanning:
+        return southWestPanningCursor();
+    case Cursor::WestPanning:
+        return westPanningCursor();
+    case Cursor::Move:
+        return moveCursor();
+    case Cursor::VerticalText:
+        return verticalTextCursor();
+    case Cursor::Cell:
+        return cellCursor();
+    case Cursor::ContextMenu:
+        return contextMenuCursor();
+    case Cursor::Alias:
+        return aliasCursor();
+    case Cursor::Progress:
+        return progressCursor();
+    case Cursor::NoDrop:
+        return noDropCursor();
+    case Cursor::Copy:
+        return copyCursor();
+    case Cursor::None:
+        return noneCursor();
+    case Cursor::NotAllowed:
+        return notAllowedCursor();
+    case Cursor::ZoomIn:
+        return zoomInCursor();
+    case Cursor::ZoomOut:
+        return zoomOutCursor();
+    case Cursor::Grab:
+        return grabCursor();
+    case Cursor::Grabbing:
+        return grabbingCursor();
+    case Cursor::Custom:
+        ASSERT_NOT_REACHED();
+    }
+    return pointerCursor();
+}
+
+const char* nameForCursorType(Cursor::Type type)
+{
+    switch (type) {
+    case Cursor::Pointer:
+        return "Pointer";
+    case Cursor::Cross:
+        return "Cross";
+    case Cursor::Hand:
+        return "Hand";
+    case Cursor::IBeam:
+        return "IBeam";
+    case Cursor::Wait:
+        return "Wait";
+    case Cursor::Help:
+        return "Help";
+    case Cursor::EastResize:
+        return "EastResize";
+    case Cursor::NorthResize:
+        return "NorthResize";
+    case Cursor::NorthEastResize:
+        return "NorthEastResize";
+    case Cursor::NorthWestResize:
+        return "NorthWestResize";
+    case Cursor::SouthResize:
+        return "SouthResize";
+    case Cursor::SouthEastResize:
+        return "SouthEastResize";
+    case Cursor::SouthWestResize:
+        return "SouthWestResize";
+    case Cursor::WestResize:
+        return "WestResize";
+    case Cursor::NorthSouthResize:
+        return "NorthSouthResize";
+    case Cursor::EastWestResize:
+        return "EastWestResize";
+    case Cursor::NorthEastSouthWestResize:
+        return "NorthEastSouthWestResize";
+    case Cursor::NorthWestSouthEastResize:
+        return "NorthWestSouthEastResize";
+    case Cursor::ColumnResize:
+        return "ColumnResize";
+    case Cursor::RowResize:
+        return "RowResize";
+    case Cursor::MiddlePanning:
+        return "MiddlePanning";
+    case Cursor::EastPanning:
+        return "EastPanning";
+    case Cursor::NorthPanning:
+        return "NorthPanning";
+    case Cursor::NorthEastPanning:
+        return "NorthEastPanning";
+    case Cursor::NorthWestPanning:
+        return "NorthWestPanning";
+    case Cursor::SouthPanning:
+        return "SouthPanning";
+    case Cursor::SouthEastPanning:
+        return "SouthEastPanning";
+    case Cursor::SouthWestPanning:
+        return "SouthWestPanning";
+    case Cursor::WestPanning:
+        return "WestPanning";
+    case Cursor::Move:
+        return "Move";
+    case Cursor::VerticalText:
+        return "VerticalText";
+    case Cursor::Cell:
+        return "Cell";
+    case Cursor::ContextMenu:
+        return "ContextMenu";
+    case Cursor::Alias:
+        return "Alias";
+    case Cursor::Progress:
+        return "Progress";
+    case Cursor::NoDrop:
+        return "NoDrop";
+    case Cursor::Copy:
+        return "Copy";
+    case Cursor::None:
+        return "None";
+    case Cursor::NotAllowed:
+        return "NotAllowed";
+    case Cursor::ZoomIn:
+        return "ZoomIn";
+    case Cursor::ZoomOut:
+        return "ZoomOut";
+    case Cursor::Grab:
+        return "Grab";
+    case Cursor::Grabbing:
+        return "Grabbing";
+    case Cursor::Custom:
+        return "Custom";
+    }
+
+    return "ERROR";
+}
+
+#if USE(LAZY_NATIVE_CURSOR)
+
+Cursor::Cursor(Image* image, const IntPoint& hotSpot)
+    : m_type(Custom)
+    , m_image(image)
+    , m_hotSpot(determineHotSpot(image, hotSpot))
+    , m_platformCursor(0)
+{
+}
+
+Cursor::Cursor(Type type)
+    : m_type(type)
+    , m_platformCursor(0)
+{
+}
+
+PlatformCursor Cursor::platformCursor() const
+{
+    ensurePlatformCursor();
+    return m_platformCursor;
+}
+
+const Cursor& pointerCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Pointer));
+    return c;
+}
+
+const Cursor& crossCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Cross));
+    return c;
+}
+
+const Cursor& handCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Hand));
+    return c;
+}
+
+const Cursor& moveCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Move));
+    return c;
+}
+
+const Cursor& verticalTextCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::VerticalText));
+    return c;
+}
+
+const Cursor& cellCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Cell));
+    return c;
+}
+
+const Cursor& contextMenuCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ContextMenu));
+    return c;
+}
+
+const Cursor& aliasCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Alias));
+    return c;
+}
+
+const Cursor& zoomInCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ZoomIn));
+    return c;
+}
+
+const Cursor& zoomOutCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ZoomOut));
+    return c;
+}
+
+const Cursor& copyCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Copy));
+    return c;
+}
+
+const Cursor& noneCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::None));
+    return c;
+}
+
+const Cursor& progressCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Progress));
+    return c;
+}
+
+const Cursor& noDropCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NoDrop));
+    return c;
+}
+
+const Cursor& notAllowedCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NotAllowed));
+    return c;
+}
+
+const Cursor& iBeamCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::IBeam));
+    return c;
+}
+
+const Cursor& waitCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Wait));
+    return c;
+}
+
+const Cursor& helpCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Help));
+    return c;
+}
+
+const Cursor& eastResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::EastResize));
+    return c;
+}
+
+const Cursor& northResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthResize));
+    return c;
+}
+
+const Cursor& northEastResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthEastResize));
+    return c;
+}
+
+const Cursor& northWestResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestResize));
+    return c;
+}
+
+const Cursor& southResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthResize));
+    return c;
+}
+
+const Cursor& southEastResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthEastResize));
+    return c;
+}
+
+const Cursor& southWestResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthWestResize));
+    return c;
+}
+
+const Cursor& westResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::WestResize));
+    return c;
+}
+
+const Cursor& northSouthResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthSouthResize));
+    return c;
+}
+
+const Cursor& eastWestResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::EastWestResize));
+    return c;
+}
+
+const Cursor& northEastSouthWestResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthEastSouthWestResize));
+    return c;
+}
+
+const Cursor& northWestSouthEastResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestSouthEastResize));
+    return c;
+}
+
+const Cursor& columnResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::ColumnResize));
+    return c;
+}
+
+const Cursor& rowResizeCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::RowResize));
+    return c;
+}
+
+const Cursor& middlePanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::MiddlePanning));
+    return c;
+}
+    
+const Cursor& eastPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::EastPanning));
+    return c;
+}
+    
+const Cursor& northPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthPanning));
+    return c;
+}
+    
+const Cursor& northEastPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthEastPanning));
+    return c;
+}
+    
+const Cursor& northWestPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::NorthWestPanning));
+    return c;
+}
+    
+const Cursor& southPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthPanning));
+    return c;
+}
+    
+const Cursor& southEastPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthEastPanning));
+    return c;
+}
+    
+const Cursor& southWestPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::SouthWestPanning));
+    return c;
+}
+    
+const Cursor& westPanningCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::WestPanning));
+    return c;
+}
+
+const Cursor& grabCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Grab));
+    return c;
+}
+
+const Cursor& grabbingCursor()
+{
+    DEFINE_STATIC_LOCAL(Cursor, c, (Cursor::Grabbing));
+    return c;
+}
+
+#endif
+
+} // namespace WebCore