/* * Copyright (C) 2018 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(LAYOUT_FORMATTING_CONTEXT) #include "FloatingState.h" #include "LayoutUnits.h" #include <wtf/IsoMalloc.h> namespace WebCore { namespace Layout { class FloatAvoider; class Box; class Container; class FloatingPair; class LayoutState; // FloatingContext is responsible for adjusting the position of a box in the current formatting context // by taking the floating boxes into account. class FloatingContext { WTF_MAKE_ISO_ALLOCATED(FloatingContext); public: FloatingContext(FloatingState&); FloatingState& floatingState() const { return m_floatingState; } Point positionForFloat(const Box&) const; Optional<Point> positionForFloatAvoiding(const Box&) const; Optional<Position> verticalPositionWithClearance(const Box&) const; private: LayoutState& layoutState() const { return m_floatingState.layoutState(); } void floatingPosition(FloatAvoider&) const; FloatingState& m_floatingState; }; } } #endif