/* * Copyright (C) 2014-2016 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. AND ITS CONTRIBUTORS ``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 ITS 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 #if ENABLE(CSS_SCROLL_SNAP) #include "LengthBox.h" #include "LengthSize.h" #include "RenderStyleConstants.h" #include #include namespace WebCore { struct ScrollSnapType { ScrollSnapAxis axis { ScrollSnapAxis::Both }; ScrollSnapStrictness strictness { ScrollSnapStrictness::None }; }; inline bool operator==(const ScrollSnapType& a, const ScrollSnapType& b) { return a.axis == b.axis && a.strictness == b.strictness; } inline bool operator!=(const ScrollSnapType& a, const ScrollSnapType& b) { return !(a == b); } class StyleScrollSnapPort : public RefCounted { public: static Ref create() { return adoptRef(*new StyleScrollSnapPort); } Ref copy() const; ScrollSnapType type; LengthBox scrollPadding { 0, 0, 0, 0 }; private: StyleScrollSnapPort(); StyleScrollSnapPort(const StyleScrollSnapPort&); }; inline bool operator==(const StyleScrollSnapPort& a, const StyleScrollSnapPort& b) { return a.type == b.type && a.scrollPadding == b.scrollPadding; } inline bool operator!=(const StyleScrollSnapPort& a, const StyleScrollSnapPort& b) { return !(a == b); } struct ScrollSnapAlign { ScrollSnapAxisAlignType x { ScrollSnapAxisAlignType::None }; ScrollSnapAxisAlignType y { ScrollSnapAxisAlignType::None }; }; inline bool operator==(const ScrollSnapAlign& a, const ScrollSnapAlign& b) { return a.x == b.x && a.y == b.y; } inline bool operator!=(const ScrollSnapAlign& a, const ScrollSnapAlign& b) { return !(a == b); } class StyleScrollSnapArea : public RefCounted { public: static Ref create() { return adoptRef(*new StyleScrollSnapArea); } Ref copy() const; bool hasSnapPosition() const { return alignment.x != ScrollSnapAxisAlignType::None || alignment.y != ScrollSnapAxisAlignType::None; } ScrollSnapAlign alignment; LengthBox scrollSnapMargin { 0, 0, 0, 0 }; private: StyleScrollSnapArea(); StyleScrollSnapArea(const StyleScrollSnapArea&); }; inline bool operator==(const StyleScrollSnapArea& a, const StyleScrollSnapArea& b) { return a.alignment == b.alignment && a.scrollSnapMargin == b.scrollSnapMargin; } inline bool operator!=(const StyleScrollSnapArea& a, const StyleScrollSnapArea& b) { return !(a == b); } } // namespace WebCore #endif // ENABLE(CSS_SCROLL_SNAP)