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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef ContentData_h
#define ContentData_h
#include "CounterContent.h"
#include "StyleImage.h"
#include "RenderPtr.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
class Document;
class RenderObject;
class RenderStyle;
class ContentData {
WTF_MAKE_FAST_ALLOCATED;
public:
virtual ~ContentData() { }
virtual bool isCounter() const { return false; }
virtual bool isImage() const { return false; }
virtual bool isQuote() const { return false; }
virtual bool isText() const { return false; }
virtual RenderPtr<RenderObject> createContentRenderer(Document&, const RenderStyle&) const = 0;
std::unique_ptr<ContentData> clone() const;
ContentData* next() const { return m_next.get(); }
void setNext(std::unique_ptr<ContentData> next) { m_next = std::move(next); }
void setAltText(const String& alt) { m_altText = alt; }
const String& altText() const { return m_altText; }
virtual bool equals(const ContentData&) const = 0;
private:
virtual std::unique_ptr<ContentData> cloneInternal() const = 0;
std::unique_ptr<ContentData> m_next;
String m_altText;
};
class ImageContentData final : public ContentData {
public:
explicit ImageContentData(PassRefPtr<StyleImage> image)
: m_image(image)
{
}
const StyleImage* image() const { return m_image.get(); }
StyleImage* image() { return m_image.get(); }
void setImage(PassRefPtr<StyleImage> image) { m_image = image; }
virtual bool isImage() const override { return true; }
virtual RenderPtr<RenderObject> createContentRenderer(Document&, const RenderStyle&) const override;
virtual bool equals(const ContentData& data) const override
{
if (!data.isImage())
return false;
return *static_cast<const ImageContentData&>(data).image() == *image();
}
private:
virtual std::unique_ptr<ContentData> cloneInternal() const override
{
RefPtr<StyleImage> image = const_cast<StyleImage*>(this->image());
return std::make_unique<ImageContentData>(image.release());
}
RefPtr<StyleImage> m_image;
};
class TextContentData final : public ContentData {
public:
explicit TextContentData(const String& text)
: m_text(text)
{
}
const String& text() const { return m_text; }
void setText(const String& text) { m_text = text; }
virtual bool isText() const override { return true; }
virtual RenderPtr<RenderObject> createContentRenderer(Document&, const RenderStyle&) const override;
virtual bool equals(const ContentData& data) const override
{
if (!data.isText())
return false;
return static_cast<const TextContentData&>(data).text() == text();
}
private:
virtual std::unique_ptr<ContentData> cloneInternal() const override { return std::make_unique<TextContentData>(text()); }
String m_text;
};
class CounterContentData final : public ContentData {
public:
explicit CounterContentData(std::unique_ptr<CounterContent> counter)
: m_counter(std::move(counter))
{
}
const CounterContent* counter() const { return m_counter.get(); }
void setCounter(std::unique_ptr<CounterContent> counter) { m_counter = std::move(counter); }
virtual bool isCounter() const override { return true; }
virtual RenderPtr<RenderObject> createContentRenderer(Document&, const RenderStyle&) const override;
private:
virtual std::unique_ptr<ContentData> cloneInternal() const override
{
auto counterData = std::make_unique<CounterContent>(*counter());
return std::make_unique<CounterContentData>(std::move(counterData));
}
virtual bool equals(const ContentData& data) const override
{
if (!data.isCounter())
return false;
return *static_cast<const CounterContentData&>(data).counter() == *counter();
}
std::unique_ptr<CounterContent> m_counter;
};
class QuoteContentData final : public ContentData {
public:
explicit QuoteContentData(QuoteType quote)
: m_quote(quote)
{
}
QuoteType quote() const { return m_quote; }
void setQuote(QuoteType quote) { m_quote = quote; }
virtual bool isQuote() const override { return true; }
virtual RenderPtr<RenderObject> createContentRenderer(Document&, const RenderStyle&) const override;
virtual bool equals(const ContentData& data) const override
{
if (!data.isQuote())
return false;
return static_cast<const QuoteContentData&>(data).quote() == quote();
}
private:
virtual std::unique_ptr<ContentData> cloneInternal() const override { return std::make_unique<QuoteContentData>(quote()); }
QuoteType m_quote;
};
inline bool operator==(const ContentData& a, const ContentData& b)
{
return a.equals(b);
}
inline bool operator!=(const ContentData& a, const ContentData& b)
{
return !(a == b);
}
} // namespace WebCore
#endif // ContentData_h
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