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/*
* Copyright (C) 2021 Metrological Group B.V.
* Copyright (C) 2021 Igalia S.L.
* Copyright (C) 2007, 2008, 2011 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. AND ITS 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 APPLE INC. OR ITS 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 "CachedResourceHandle.h"
#include "Document.h"
#include "Timer.h"
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
#include <wtf/WeakRef.h>
namespace WebCore {
class CachedFont;
class DocumentFontLoader {
WTF_MAKE_TZONE_ALLOCATED(DocumentFontLoader);
public:
DocumentFontLoader(Document&);
~DocumentFontLoader();
void ref() const;
void deref() const;
CachedFont* cachedFont(URL&&, bool, bool, LoadedFromOpaqueSource);
void beginLoadingFontSoon(CachedFont&);
void loadPendingFonts();
void stopLoadingAndClearFonts();
void suspendFontLoading();
void resumeFontLoading();
private:
void fontLoadingTimerFired();
WeakRef<Document, WeakPtrImplWithEventTargetData> m_document;
Timer m_fontLoadingTimer;
Vector<CachedResourceHandle<CachedFont>> m_fontsToBeginLoading;
bool m_isFontLoadingSuspended { false };
bool m_isStopped { false };
};
} // namespace WebCore
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