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/RefCounted.h> 31 32 namespace WebCore { 33 34 class FontData; 35 class FontDescription; 36 class FontSelectorClient; 37 38 class FontSelector : public RefCounted<FontSelector> { 39 public: ~FontSelector()40 virtual ~FontSelector() { } 41 virtual FontData* getFontData(const FontDescription&, const AtomicString& familyName) = 0; 42 fontCacheInvalidated()43 virtual void fontCacheInvalidated() { } 44 45 virtual void registerForInvalidationCallbacks(FontSelectorClient*) = 0; 46 virtual void unregisterForInvalidationCallbacks(FontSelectorClient*) = 0; 47 }; 48 49 class FontSelectorClient { 50 public: ~FontSelectorClient()51 virtual ~FontSelectorClient() { } 52 53 virtual void fontsNeedUpdate(FontSelector*) = 0; 54 }; 55 56 } // namespace WebCore 57 58 #endif // FontSelector_h 59