Move ScrollTypes.h from Source/core/platform to Source/platform/scroll.

Source/platform/scroll/ScrollTypes.h

+/*
+ * Copyright (C) 2006 Apple Computer, 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 ScrollTypes_h
+#define ScrollTypes_h
+
+#include "wtf/Assertions.h"
+
+namespace WebCore {
+
+enum ScrollDirection {
+    ScrollUp,
+    ScrollDown,
+    ScrollLeft,
+    ScrollRight
+};
+
+enum ScrollLogicalDirection {
+    ScrollBlockDirectionBackward,
+    ScrollBlockDirectionForward,
+    ScrollInlineDirectionBackward,
+    ScrollInlineDirectionForward
+};
+
+
+inline ScrollDirection logicalToPhysical(ScrollLogicalDirection direction, bool isVertical, bool isFlipped)
+{
+    switch (direction) {
+    case ScrollBlockDirectionBackward: {
+        if (isVertical) {
+            if (!isFlipped)
+                return ScrollUp;
+            return ScrollDown;
+        }
+        if (!isFlipped)
+            return ScrollLeft;
+        return ScrollRight;
+    }
+    case ScrollBlockDirectionForward: {
+        if (isVertical) {
+            if (!isFlipped)
+                return ScrollDown;
+            return ScrollUp;
+        }
+        if (!isFlipped)
+            return ScrollRight;
+        return ScrollLeft;
+    }
+    case ScrollInlineDirectionBackward: {
+        if (isVertical) {
+            if (!isFlipped)
+                return ScrollLeft;
+            return ScrollRight;
+        }
+        if (!isFlipped)
+            return ScrollUp;
+        return ScrollDown;
+    }
+    case ScrollInlineDirectionForward: {
+        if (isVertical) {
+            if (!isFlipped)
+                return ScrollRight;
+            return ScrollLeft;
+        }
+        if (!isFlipped)
+            return ScrollDown;
+        return ScrollUp;
+    }
+    default:
+        ASSERT_NOT_REACHED();
+        break;
+    }
+    return ScrollUp;
+}
+
+enum ScrollGranularity {
+    ScrollByLine,
+    ScrollByPage,
+    ScrollByDocument,
+    ScrollByPixel,
+    ScrollByPrecisePixel
+};
+
+enum ScrollElasticity {
+    ScrollElasticityAutomatic,
+    ScrollElasticityNone,
+    ScrollElasticityAllowed
+};
+
+enum ScrollbarOrientation { HorizontalScrollbar, VerticalScrollbar };
+
+enum ScrollbarMode { ScrollbarAuto, ScrollbarAlwaysOff, ScrollbarAlwaysOn };
+
+enum ScrollbarControlSize { RegularScrollbar, SmallScrollbar };
+
+typedef unsigned ScrollbarControlState;
+
+enum ScrollbarControlStateMask {
+    ActiveScrollbarState = 1,
+    EnabledScrollbarState = 1 << 1,
+    PressedScrollbarState = 1 << 2
+};
+
+enum ScrollbarPart {
+    NoPart = 0,
+    BackButtonStartPart = 1,
+    ForwardButtonStartPart = 1 << 1,
+    BackTrackPart = 1 << 2,
+    ThumbPart = 1 << 3,
+    ForwardTrackPart = 1 << 4,
+    BackButtonEndPart = 1 << 5,
+    ForwardButtonEndPart = 1 << 6,
+    ScrollbarBGPart = 1 << 7,
+    TrackBGPart = 1 << 8,
+    AllParts = 0xffffffff
+};
+
+enum ScrollbarButtonsPlacement {
+    ScrollbarButtonsNone,
+    ScrollbarButtonsSingle,
+    ScrollbarButtonsDoubleStart,
+    ScrollbarButtonsDoubleEnd,
+    ScrollbarButtonsDoubleBoth
+};
+
+enum ScrollbarOverlayStyle {
+    ScrollbarOverlayStyleDefault,
+    ScrollbarOverlayStyleDark,
+    ScrollbarOverlayStyleLight
+};
+
+typedef unsigned ScrollbarControlPartMask;
+
+}
+
+#endif