/* * Copyright (C) 2011 Google Inc. All rights reserved. * Copyright (C) 2013 Igalia S.L. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT * OWNER 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 <wtf/StdSet.h> namespace WebCore { class RenderBox; class RenderObject; class OrderIterator { public: friend class OrderIteratorPopulator; explicit OrderIterator(RenderBox&); RenderBox* currentChild() const { return m_currentChild; } RenderBox* first(); RenderBox* next(); bool shouldSkipChild(const RenderObject&) const; private: void reset(); RenderBox& m_containerBox; RenderBox* m_currentChild; using OrderValues = StdSet<int>; OrderValues m_orderValues; OrderValues::const_iterator m_orderValuesIterator; bool m_isReset { false }; }; class OrderIteratorPopulator { public: explicit OrderIteratorPopulator(OrderIterator& iterator) : m_iterator(iterator) { m_iterator.m_orderValues.clear(); } ~OrderIteratorPopulator(); bool collectChild(const RenderBox&); private: OrderIterator& m_iterator; }; } // namespace WebCore