1 /* 2 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef FontSelector_h 27 #define FontSelector_h 28 29 #include "wtf/Forward.h" 30 #include "wtf/PassRefPtr.h" 31 #include "wtf/RefCounted.h" 32 33 namespace WebCore { 34 35 class FontData; 36 class FontDescription; 37 class FontSelectorClient; 38 39 class FontSelector : public RefCounted<FontSelector> { 40 public: 41 virtual ~FontSelector() { } 42 virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString& familyName) = 0; 43 virtual void willUseFontData(const FontDescription&, const AtomicString& familyName) = 0; 44 45 virtual void fontCacheInvalidated() { } 46 47 virtual void registerForInvalidationCallbacks(FontSelectorClient*) = 0; 48 virtual void unregisterForInvalidationCallbacks(FontSelectorClient*) = 0; 49 50 virtual unsigned version() const = 0; 51 }; 52 53 class FontSelectorClient { 54 public: 55 virtual ~FontSelectorClient() { } 56 57 virtual void fontsNeedUpdate(FontSelector*) = 0; 58 }; 59 60 } // namespace WebCore 61 62 #endif // FontSelector_h 63
