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/*
* Copyright (C) 2007-2021 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.
*/
#pragma once
#include "FontLoadRequest.h"
#include <JavaScriptCore/ArrayBufferView.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/AtomString.h>
namespace WebCore {
class CSSFontFace;
class CSSFontSelector;
class SharedBuffer;
class Document;
class Font;
class FontCreationContext;
class FontDescription;
class SVGFontFaceElement;
class WeakPtrImplWithEventTargetData;
struct FontCustomPlatformData;
class CSSFontFaceSource final : public FontLoadRequestClient {
WTF_MAKE_FAST_ALLOCATED;
public:
CSSFontFaceSource(CSSFontFace& owner, AtomString fontFaceName);
CSSFontFaceSource(CSSFontFace& owner, AtomString fontFaceName, SVGFontFaceElement&);
CSSFontFaceSource(CSSFontFace& owner, CSSFontSelector&, UniqueRef<FontLoadRequest>);
CSSFontFaceSource(CSSFontFace& owner, Ref<JSC::ArrayBufferView>&&);
virtual ~CSSFontFaceSource();
// => Success
// //
// Pending => Loading
// \\.
// => Failure
enum class Status {
Pending,
Loading,
Success,
Failure
};
Status status() const { return m_status; }
void opportunisticallyStartFontDataURLLoading();
void load(Document* = nullptr);
RefPtr<Font> font(const FontDescription&, bool syntheticBold, bool syntheticItalic, const FontCreationContext&);
FontLoadRequest* fontLoadRequest() const { return m_fontRequest.get(); }
bool requiresExternalResource() const { return m_fontRequest.get(); }
bool isSVGFontFaceSource() const;
private:
bool shouldIgnoreFontLoadCompletions() const;
void fontLoaded(FontLoadRequest&) override;
void setStatus(Status);
AtomString m_fontFaceName; // Font name for local fonts
CSSFontFace& m_face; // Our owning font face.
WeakPtr<CSSFontSelector> m_fontSelector; // For remote fonts, to orchestrate loading.
const std::unique_ptr<FontLoadRequest> m_fontRequest; // Also for remote fonts, a pointer to the resource request.
RefPtr<SharedBuffer> m_generatedOTFBuffer;
RefPtr<JSC::ArrayBufferView> m_immediateSource;
RefPtr<FontCustomPlatformData> m_immediateFontCustomPlatformData;
WeakPtr<SVGFontFaceElement, WeakPtrImplWithEventTargetData> m_svgFontFaceElement;
RefPtr<FontCustomPlatformData> m_inDocumentCustomPlatformData;
Status m_status { Status::Pending };
bool m_hasSVGFontFaceElement { false };
};
} // namespace WebCore
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