/* * Copyright (C) 2009 Google 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: * * * 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 "RenderBlockFlow.h" #include "RenderInline.h" namespace WebCore { // Following the HTML 5 spec, the box object model for a <ruby> element allows several runs of ruby // bases with their respective ruby texts looks as follows: // // 1 RenderRuby object, corresponding to the whole <ruby> HTML element // 1+ RenderRubyRun (anonymous) // 0 or 1 RenderRubyText - shuffled to the front in order to re-use existing block layouting // 0-n inline object(s) // 0 or 1 RenderRubyBase - contains the inline objects that make up the ruby base // 1-n inline object(s) // // Note: <rp> elements are defined as having 'display:none' and thus normally are not assigned a renderer. // // Generated :before/:after content is shunted into anonymous inline blocks // <ruby> when used as 'display:inline' class RenderRubyAsInline final : public RenderInline { public: RenderRubyAsInline(Element&, RenderStyle&&); virtual ~RenderRubyAsInline(); void addChild(RenderObject* child, RenderObject* beforeChild = 0) override; void removeChild(RenderObject& child) override; protected: void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override; private: bool isRubyInline() const final { return true; } const char* renderName() const override { return "RenderRuby (inline)"; } bool createsAnonymousWrapper() const override { return true; } }; // <ruby> when used as 'display:block' or 'display:inline-block' class RenderRubyAsBlock final : public RenderBlockFlow { public: RenderRubyAsBlock(Element&, RenderStyle&&); virtual ~RenderRubyAsBlock(); Element& element() const { return downcast<Element>(nodeForNonAnonymous()); } void addChild(RenderObject* child, RenderObject* beforeChild = 0) override; void removeChild(RenderObject& child) override; protected: void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override; private: bool isRubyBlock() const final { return true; } const char* renderName() const override { return "RenderRuby (block)"; } bool createsAnonymousWrapper() const override { return true; } void removeLeftoverAnonymousBlock(RenderBlock*) override { ASSERT_NOT_REACHED(); } }; inline bool isRuby(const RenderObject& renderer) { return (is<RenderRubyAsInline>(renderer) || is<RenderRubyAsBlock>(renderer)); } inline bool isRuby(const RenderObject* renderer) { return (renderer && isRuby(*renderer)); } } // namespace WebCore SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyAsInline, isRubyInline()) SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderRubyAsBlock, isRubyBlock())