/* * Copyright (C) 2020 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 "LayoutInitialContainingBlock.h" #include <wtf/HashMap.h> #include <wtf/Vector.h> namespace WebCore { class RenderBlockFlow; namespace LayoutIntegration { class BoxTree { public: BoxTree(const RenderBlockFlow&); const Layout::InitialContainingBlock& rootLayoutBox() const { return m_root; } Layout::InitialContainingBlock& rootLayoutBox() { return m_root; } const Layout::Box* layoutBoxForRenderer(const RenderObject&) const; const RenderObject* rendererForLayoutBox(const Layout::Box&) const; private: void buildTree(const RenderBlockFlow&); Layout::InitialContainingBlock m_root; struct BoxAndRenderer { std::unique_ptr<const Layout::Box> box; const RenderObject* renderer { nullptr }; }; Vector<BoxAndRenderer, 1> m_boxes; mutable HashMap<const RenderObject*, const Layout::Box*> m_rendererToBoxMap; mutable HashMap<const Layout::Box*, const RenderObject*> m_boxToRendererMap; }; } } #endif