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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/ResourceClient.h"
#include "core/fetch/ResourcePtr.h"
#include "platform/Timer.h"
#include "platform/fonts/FontOrientation.h"
#include "wtf/OwnPtr.h"
namespace blink {
class ResourceFetcher;
class FontPlatformData;
class FontCustomPlatformData;
class FontResource final : public Resource {
public:
typedef ResourceClient ClientType;
FontResource(const ResourceRequest&);
virtual ~FontResource();
virtual void load(ResourceFetcher*, const ResourceLoaderOptions&) override;
virtual void didAddClient(ResourceClient*) override;
virtual void allClientsRemoved() override;
void beginLoadIfNeeded(ResourceFetcher* dl);
virtual bool stillNeedsLoad() const override { return m_state != LoadInitiated; }
bool exceedsFontLoadWaitLimit() const { return m_exceedsFontLoadWaitLimit; }
bool loadScheduled() const { return m_state != Unloaded; }
void didScheduleLoad();
void didUnscheduleLoad();
void setCORSFailed() { m_corsFailed = true; }
bool isCORSFailed() const { return m_corsFailed; }
bool ensureCustomFontData();
FontPlatformData platformDataFromCustomData(float size, bool bold, bool italic, FontOrientation = Horizontal);
protected:
virtual bool isSafeToUnlock() const override;
private:
virtual void checkNotify() override;
void fontLoadWaitLimitCallback(Timer<FontResource>*);
enum State { Unloaded, LoadScheduled, LoadInitiated };
OwnPtr<FontCustomPlatformData> m_fontData;
State m_state;
bool m_exceedsFontLoadWaitLimit;
bool m_corsFailed;
Timer<FontResource> m_fontLoadWaitLimitTimer;
friend class MemoryCache;
};
DEFINE_RESOURCE_TYPE_CASTS(Font);
class FontResourceClient : public ResourceClient {
public:
virtual ~FontResourceClient() { }
static ResourceClientType expectedType() { return FontType; }
virtual ResourceClientType resourceClientType() const override final { return expectedType(); }
virtual void fontLoaded(FontResource*) { }
virtual void didStartFontLoad(FontResource*) { }
virtual void fontLoadWaitLimitExceeded(FontResource*) { }
};
}
#endif
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