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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/loader/cache/Resource.h"
#include "core/loader/cache/ResourceClient.h"
#include "core/platform/graphics/FontOrientation.h"
#include "core/platform/graphics/FontWidthVariant.h"
#include "wtf/OwnPtr.h"
namespace WebCore {
class ResourceFetcher;
class FontPlatformData;
class SVGDocument;
class SVGFontElement;
class FontCustomPlatformData;
class FontResource : public Resource {
public:
FontResource(const ResourceRequest&);
virtual ~FontResource();
virtual void load(ResourceFetcher*, const ResourceLoaderOptions&);
virtual void didAddClient(ResourceClient*);
virtual void allClientsRemoved();
void beginLoadIfNeeded(ResourceFetcher* dl);
bool stillNeedsLoad() const { return !m_loadInitiated; }
bool ensureCustomFontData();
FontPlatformData platformDataFromCustomData(float size, bool bold, bool italic, FontOrientation = Horizontal, FontWidthVariant = RegularWidth);
#if ENABLE(SVG_FONTS)
bool ensureSVGFontData();
SVGFontElement* getSVGFontById(const String&) const;
#endif
private:
virtual void checkNotify();
OwnPtr<FontCustomPlatformData> m_fontData;
bool m_loadInitiated;
#if ENABLE(SVG_FONTS)
RefPtr<WebCore::SVGDocument> m_externalSVGDocument;
#endif
friend class MemoryCache;
};
class FontResourceClient : public ResourceClient {
public:
virtual ~FontResourceClient() { }
static ResourceClientType expectedType() { return FontType; }
virtual ResourceClientType resourceClientType() const { return expectedType(); }
virtual void fontLoaded(FontResource*) { }
virtual void didStartFontLoad(FontResource*) { }
};
}
#endif
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