1 | /* |
2 | * Copyright (C) 2015 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 INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #if ENABLE(CONTENT_EXTENSIONS) |
29 | |
30 | #include "DFABytecodeInterpreter.h" |
31 | #include "StyleSheetContents.h" |
32 | #include <wtf/Ref.h> |
33 | #include <wtf/RefCounted.h> |
34 | #include <wtf/RefPtr.h> |
35 | |
36 | namespace WebCore { |
37 | |
38 | namespace ContentExtensions { |
39 | |
40 | class CompiledContentExtension; |
41 | |
42 | class ContentExtension : public RefCounted<ContentExtension> { |
43 | public: |
44 | enum class ShouldCompileCSS { No, Yes }; |
45 | static Ref<ContentExtension> create(const String& identifier, Ref<CompiledContentExtension>&&, ShouldCompileCSS = ShouldCompileCSS::Yes); |
46 | |
47 | const String& identifier() const { return m_identifier; } |
48 | const CompiledContentExtension& compiledExtension() const { return m_compiledExtension.get(); } |
49 | StyleSheetContents* globalDisplayNoneStyleSheet(); |
50 | const DFABytecodeInterpreter::Actions& topURLActions(const URL& topURL); |
51 | const Vector<uint32_t>& universalActionsWithoutConditions() { return m_universalActionsWithoutConditions; } |
52 | const Vector<uint32_t>& universalActionsWithConditions(const URL& topURL); |
53 | |
54 | private: |
55 | ContentExtension(const String& identifier, Ref<CompiledContentExtension>&&, ShouldCompileCSS); |
56 | uint32_t findFirstIgnorePreviousRules() const; |
57 | |
58 | String m_identifier; |
59 | Ref<CompiledContentExtension> m_compiledExtension; |
60 | |
61 | RefPtr<StyleSheetContents> m_globalDisplayNoneStyleSheet; |
62 | void compileGlobalDisplayNoneStyleSheet(); |
63 | |
64 | URL m_cachedTopURL; |
65 | void populateConditionCacheIfNeeded(const URL& topURL); |
66 | DFABytecodeInterpreter::Actions m_cachedTopURLActions; |
67 | Vector<uint32_t> m_cachedUniversalConditionedActions; |
68 | |
69 | Vector<uint32_t> m_universalActionsWithoutConditions; |
70 | Vector<uint64_t> m_universalActionsWithConditions; |
71 | }; |
72 | |
73 | } // namespace ContentExtensions |
74 | } // namespace WebCore |
75 | |
76 | #endif // ENABLE(CONTENT_EXTENSIONS) |
77 | |