| /* |
| * 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 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 CSSFontSelector_h |
| #define CSSFontSelector_h |
| |
| #include "core/css/CSSSegmentedFontFaceCache.h" |
| #include "core/fetch/ResourcePtr.h" |
| #include "platform/Timer.h" |
| #include "platform/fonts/FontSelector.h" |
| #include "wtf/Forward.h" |
| #include "wtf/HashMap.h" |
| #include "wtf/HashSet.h" |
| |
| namespace WebCore { |
| |
| class CSSFontFace; |
| class CSSFontFaceRule; |
| class CSSSegmentedFontFace; |
| class FontResource; |
| class Document; |
| class FontDescription; |
| class StyleRuleFontFace; |
| |
| class FontLoader { |
| public: |
| explicit FontLoader(ResourceFetcher*); |
| |
| void addFontToBeginLoading(FontResource*); |
| void loadPendingFonts(); |
| |
| void clearResourceFetcher(); |
| |
| private: |
| void beginLoadTimerFired(Timer<FontLoader>*); |
| |
| Timer<FontLoader> m_beginLoadingTimer; |
| Vector<ResourcePtr<FontResource> > m_fontsToBeginLoading; |
| ResourceFetcher* m_resourceFetcher; |
| }; |
| |
| class CSSFontSelector : public FontSelector { |
| public: |
| static PassRefPtr<CSSFontSelector> create(Document* document) |
| { |
| return adoptRef(new CSSFontSelector(document)); |
| } |
| virtual ~CSSFontSelector(); |
| |
| virtual unsigned version() const OVERRIDE { return m_cssSegmentedFontFaceCache.version(); } |
| |
| virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&); |
| CSSSegmentedFontFace* getFontFace(const FontDescription&, const AtomicString& family); |
| virtual void willUseFontData(const FontDescription&, const AtomicString& family) OVERRIDE; |
| |
| void clearDocument(); |
| |
| void addFontFaceRule(const StyleRuleFontFace*); |
| void removeFontFaceRule(const StyleRuleFontFace*); |
| |
| void fontLoaded(); |
| virtual void fontCacheInvalidated(); |
| |
| virtual void registerForInvalidationCallbacks(FontSelectorClient*); |
| virtual void unregisterForInvalidationCallbacks(FontSelectorClient*); |
| |
| Document* document() const { return m_document; } |
| |
| void beginLoadingFontSoon(FontResource*); |
| void loadPendingFonts(); |
| |
| private: |
| explicit CSSFontSelector(Document*); |
| |
| void dispatchInvalidationCallbacks(); |
| |
| Document* m_document; |
| // FIXME: Move to Document or StyleEngine. |
| CSSSegmentedFontFaceCache m_cssSegmentedFontFaceCache; |
| HashSet<FontSelectorClient*> m_clients; |
| |
| FontLoader m_fontLoader; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // CSSFontSelector_h |