1 /*
2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
4  * All rights reserved.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB.  If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_FILTER_OPERATION_RESOLVER_H_
24 #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_FILTER_OPERATION_RESOLVER_H_
25 
26 #include "third_party/blink/renderer/core/css/css_to_length_conversion_data.h"
27 #include "third_party/blink/renderer/core/css_value_keywords.h"
28 #include "third_party/blink/renderer/core/style/filter_operations.h"
29 #include "third_party/blink/renderer/platform/heap/handle.h"
30 
31 namespace blink {
32 
33 class CSSFunctionValue;
34 class CSSValue;
35 class StyleResolverState;
36 
37 class CORE_EXPORT FilterOperationResolver {
38   STATIC_ONLY(FilterOperationResolver);
39 
40  public:
41   static FilterOperation::OperationType FilterOperationForType(CSSValueID);
42   static FilterOperations CreateFilterOperations(StyleResolverState&,
43                                                  const CSSValue&);
44   static FilterOperations CreateOffscreenFilterOperations(const CSSValue&,
45                                                           const Font&);
46   static double ResolveNumericArgumentForFunction(
47       const CSSFunctionValue& filter);
48 };
49 
50 }  // namespace blink
51 
52 #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_FILTER_OPERATION_RESOLVER_H_
53