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/*
* 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.
*/
#ifndef LayoutRuby_h
#define LayoutRuby_h
#include "core/layout/LayoutBlockFlow.h"
#include "core/layout/LayoutInline.h"
namespace blink {
// 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 LayoutRuby object, corresponding to the whole <ruby> HTML element
// 1+ LayoutRubyRun (anonymous)
// 0 or 1 LayoutRubyText - shuffled to the front in order to re-use existing block layouting
// 0-n inline object(s)
// 0 or 1 LayoutRubyBase - 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 layoutObject.
//
// Generated :before/:after content is shunted into anonymous inline blocks
// <ruby> when used as 'display:inline'
class LayoutRubyAsInline final : public LayoutInline {
public:
LayoutRubyAsInline(Element*);
~LayoutRubyAsInline() override;
void addChild(LayoutObject* child, LayoutObject* beforeChild = nullptr) override;
void removeChild(LayoutObject* child) override;
const char* name() const override { return "LayoutRuby (inline)"; }
protected:
void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;
private:
bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRuby || LayoutInline::isOfType(type); }
bool createsAnonymousWrapper() const override { return true; }
};
// <ruby> when used as 'display:block' or 'display:inline-block'
class LayoutRubyAsBlock final : public LayoutBlockFlow {
public:
LayoutRubyAsBlock(Element*);
~LayoutRubyAsBlock() override;
void addChild(LayoutObject* child, LayoutObject* beforeChild = nullptr) override;
void removeChild(LayoutObject* child) override;
const char* name() const override { return "LayoutRuby (block)"; }
protected:
void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;
private:
bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRuby || LayoutBlockFlow::isOfType(type); }
bool createsAnonymousWrapper() const override { return true; }
void removeLeftoverAnonymousBlock(LayoutBlock*) override { ASSERT_NOT_REACHED(); }
};
} // namespace blink
#endif // LayoutRuby_h
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