| /* |
| * Copyright (C) 2006 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. |
| */ |
| |
| #pragma once |
| |
| #include <cstdint> |
| #include <wtf/Assertions.h> |
| |
| namespace WebCore { |
| |
| enum class ScrollType : uint8_t { |
| User, |
| Programmatic |
| }; |
| |
| enum ScrollDirection : uint8_t { |
| ScrollUp, |
| ScrollDown, |
| ScrollLeft, |
| ScrollRight |
| }; |
| |
| enum ScrollLogicalDirection : uint8_t { |
| ScrollBlockDirectionBackward, |
| ScrollBlockDirectionForward, |
| ScrollInlineDirectionBackward, |
| ScrollInlineDirectionForward |
| }; |
| |
| enum class ScrollPositionClamp : uint8_t { |
| None, |
| ToContentEdges, |
| }; |
| |
| inline ScrollDirection logicalToPhysical(ScrollLogicalDirection direction, bool isVertical, bool isFlipped) |
| { |
| switch (direction) { |
| case ScrollBlockDirectionBackward: { |
| if (isVertical) { |
| if (!isFlipped) |
| return ScrollUp; |
| return ScrollDown; |
| } else { |
| if (!isFlipped) |
| return ScrollLeft; |
| return ScrollRight; |
| } |
| break; |
| } |
| case ScrollBlockDirectionForward: { |
| if (isVertical) { |
| if (!isFlipped) |
| return ScrollDown; |
| return ScrollUp; |
| } else { |
| if (!isFlipped) |
| return ScrollRight; |
| return ScrollLeft; |
| } |
| break; |
| } |
| case ScrollInlineDirectionBackward: { |
| if (isVertical) { |
| if (!isFlipped) |
| return ScrollLeft; |
| return ScrollRight; |
| } else { |
| if (!isFlipped) |
| return ScrollUp; |
| return ScrollDown; |
| } |
| break; |
| } |
| case ScrollInlineDirectionForward: { |
| if (isVertical) { |
| if (!isFlipped) |
| return ScrollRight; |
| return ScrollLeft; |
| } else { |
| if (!isFlipped) |
| return ScrollDown; |
| return ScrollUp; |
| } |
| break; |
| } |
| default: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| return ScrollUp; |
| } |
| |
| enum ScrollGranularity : uint8_t { |
| ScrollByLine, |
| ScrollByPage, |
| ScrollByDocument, |
| ScrollByPixel |
| }; |
| |
| enum ScrollElasticity : uint8_t { |
| ScrollElasticityAutomatic, |
| ScrollElasticityNone, |
| ScrollElasticityAllowed |
| }; |
| |
| enum ScrollbarOrientation : uint8_t { |
| HorizontalScrollbar, |
| VerticalScrollbar |
| }; |
| |
| enum ScrollbarMode : uint8_t { |
| ScrollbarAuto, |
| ScrollbarAlwaysOff, |
| ScrollbarAlwaysOn |
| }; |
| |
| enum ScrollbarControlSize : uint8_t { |
| RegularScrollbar, |
| SmallScrollbar |
| }; |
| |
| enum class ScrollbarExpansionState : uint8_t { |
| Regular, |
| Expanded |
| }; |
| |
| enum class ScrollEventAxis : uint8_t { |
| Horizontal, |
| Vertical |
| }; |
| |
| 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 : uint8_t { |
| ScrollbarButtonsNone, |
| ScrollbarButtonsSingle, |
| ScrollbarButtonsDoubleStart, |
| ScrollbarButtonsDoubleEnd, |
| ScrollbarButtonsDoubleBoth |
| }; |
| |
| enum class ScrollbarStyle : uint8_t { |
| AlwaysVisible, |
| Overlay |
| }; |
| |
| enum ScrollbarOverlayStyle: uint8_t { |
| ScrollbarOverlayStyleDefault, |
| ScrollbarOverlayStyleDark, |
| ScrollbarOverlayStyleLight |
| }; |
| |
| enum ScrollPinningBehavior : uint8_t { |
| DoNotPin, |
| PinToTop, |
| PinToBottom |
| }; |
| |
| enum class ScrollClamping : uint8_t { |
| Unclamped, |
| Clamped |
| }; |
| |
| enum ScrollBehaviorForFixedElements : uint8_t { |
| StickToDocumentBounds, |
| StickToViewportBounds |
| }; |
| |
| enum class ScrollbarButtonPressAction : uint8_t { |
| None, |
| CenterOnThumb, |
| StartDrag, |
| Scroll |
| }; |
| |
| enum class SelectionRevealMode : uint8_t { |
| Reveal, |
| RevealUpToMainFrame, // Scroll overflow and iframes, but not the main frame. |
| DoNotReveal |
| }; |
| |
| enum class ScrollPositioningBehavior : uint8_t { |
| None, |
| Moves, |
| Stationary |
| }; |
| |
| using ScrollbarControlState = unsigned; |
| using ScrollbarControlPartMask = unsigned; |
| using ScrollingNodeID = uint64_t; |
| |
| } // namespace WebCore |