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/*
* Copyright (C) 2016 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. ``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
* 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 CSSFontFaceSet_h
#define CSSFontFaceSet_h
#include "CSSFontFace.h"
#include <wtf/Vector.h>
namespace WebCore {
class FontFaceSet;
class CSSFontFaceSetClient {
public:
virtual ~CSSFontFaceSetClient() { }
virtual void faceFinished(CSSFontFace&, CSSFontFace::Status) = 0;
virtual void startedLoading() = 0;
virtual void completedLoading() = 0;
};
class CSSFontFaceSet final : public CSSFontFace::Client {
public:
CSSFontFaceSet(CSSFontFaceSetClient&);
~CSSFontFaceSet();
bool hasFace(const CSSFontFace&) const;
size_t faceCount() const { return m_faces.size(); }
void add(CSSFontFace&);
void remove(const CSSFontFace&);
const CSSFontFace& operator[](size_t i) const { return m_faces[i]; }
void load(const String& font, const String& text, ExceptionCode&);
bool check(const String& font, const String& text, ExceptionCode&);
enum class Status {
Loading,
Loaded
};
Status status() const { return m_status; }
Vector<std::reference_wrapper<CSSFontFace>> matchingFaces(const String& font, const String& text, ExceptionCode&);
private:
void incrementActiveCount();
void decrementActiveCount();
virtual void stateChanged(CSSFontFace&, CSSFontFace::Status oldState, CSSFontFace::Status newState) override;
Vector<Ref<CSSFontFace>> m_faces;
Status m_status { Status::Loaded };
CSSFontFaceSetClient& m_client;
unsigned m_activeCount { 0 };
};
}
#endif
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