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/*
* Copyright (C) 2007, 2008 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 COMPUTER, 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 COMPUTER, 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 FontResource_h
#define FontResource_h
#include "core/fetch/Resource.h"
#include "core/fetch/ResourceClient.h"
#include "platform/Timer.h"
#include "platform/fonts/FontOrientation.h"
#include "wtf/OwnPtr.h"
namespace blink {
class FetchRequest;
class ResourceFetcher;
class FontPlatformData;
class FontCustomPlatformData;
class FontResourceClient;
class FontResource final : public Resource {
public:
using ClientType = FontResourceClient;
static PassRefPtrWillBeRawPtr<FontResource> fetch(FetchRequest&, ResourceFetcher*);
~FontResource() override;
void load(ResourceFetcher*) override;
void didAddClient(ResourceClient*) override;
void allClientsRemoved() override;
void beginLoadIfNeeded(ResourceFetcher* dl);
bool loadScheduled() const { return getStatus() == LoadStartScheduled; }
void didScheduleLoad();
void didUnscheduleLoad();
void setCORSFailed() override { m_corsFailed = true; }
bool isCORSFailed() const { return m_corsFailed; }
String otsParsingMessage() const { return m_otsParsingMessage; }
bool ensureCustomFontData();
FontPlatformData platformDataFromCustomData(float size, bool bold, bool italic, FontOrientation = FontOrientation::Horizontal);
protected:
bool isSafeToUnlock() const override;
private:
class FontResourceFactory : public ResourceFactory {
public:
FontResourceFactory()
: ResourceFactory(Resource::Font) { }
PassRefPtrWillBeRawPtr<Resource> create(const ResourceRequest& request, const ResourceLoaderOptions& options, const String& charset) const override
{
return adoptRefWillBeNoop(new FontResource(request, options));
}
};
FontResource(const ResourceRequest&, const ResourceLoaderOptions&);
void checkNotify() override;
void fontLoadShortLimitCallback(Timer<FontResource>*);
void fontLoadLongLimitCallback(Timer<FontResource>*);
enum LoadLimitState { UnderLimit, ShortLimitExceeded, LongLimitExceeded };
OwnPtr<FontCustomPlatformData> m_fontData;
String m_otsParsingMessage;
LoadLimitState m_loadLimitState;
bool m_corsFailed;
Timer<FontResource> m_fontLoadShortLimitTimer;
Timer<FontResource> m_fontLoadLongLimitTimer;
friend class MemoryCache;
};
DEFINE_RESOURCE_TYPE_CASTS(Font);
class FontResourceClient : public ResourceClient {
public:
~FontResourceClient() override {}
static bool isExpectedType(ResourceClient* client) { return client->getResourceClientType() == FontType; }
ResourceClientType getResourceClientType() const final { return FontType; }
virtual void fontLoaded(FontResource*) {}
virtual void didStartFontLoad(FontResource*) {}
virtual void fontLoadShortLimitExceeded(FontResource*) {}
virtual void fontLoadLongLimitExceeded(FontResource*) {}
};
} // namespace blink
#endif
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