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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 Atomi
cString& familyName) = 0; | |
43 virtual void willUseFontData(const FontDescription&, const AtomicString& fam
ilyName) = 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 | |
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