1 | /* |
2 | * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. |
3 | * Copyright (C) 2012 Apple Inc. All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * 1. Redistributions of source code must retain the above |
10 | * copyright notice, this list of conditions and the following |
11 | * disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above |
13 | * copyright notice, this list of conditions and the following |
14 | * disclaimer in the documentation and/or other materials |
15 | * provided with the distribution. |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY |
18 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
20 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
21 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
22 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
23 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
24 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
26 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
27 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
28 | * SUCH DAMAGE. |
29 | */ |
30 | |
31 | #pragma once |
32 | |
33 | namespace WebCore { |
34 | |
35 | // Must not grow beyond 3 bits, due to packing in StyleProperties. |
36 | enum CSSParserMode { |
37 | HTMLStandardMode, |
38 | HTMLQuirksMode, |
39 | // HTML attributes are parsed in quirks mode but also allows internal properties and values. |
40 | HTMLAttributeMode, |
41 | // SVG attributes are parsed in quirks mode but rules differ slightly. |
42 | SVGAttributeMode, |
43 | // @viewport rules are parsed in standards mode but CSSOM modifications (via StylePropertySet) |
44 | // must call parseViewportProperties so needs a special mode. |
45 | CSSViewportRuleMode, |
46 | // User agent stylesheets are parsed in standards mode but also allows internal properties and values. |
47 | UASheetMode |
48 | }; |
49 | |
50 | inline bool isQuirksModeBehavior(CSSParserMode mode) |
51 | { |
52 | return mode == HTMLQuirksMode || mode == HTMLAttributeMode; |
53 | } |
54 | |
55 | inline bool isUASheetBehavior(CSSParserMode mode) |
56 | { |
57 | return mode == UASheetMode; |
58 | } |
59 | |
60 | inline bool isUnitLessValueParsingEnabledForMode(CSSParserMode mode) |
61 | { |
62 | return mode == HTMLAttributeMode || mode == SVGAttributeMode; |
63 | } |
64 | |
65 | inline bool isCSSViewportParsingEnabledForMode(CSSParserMode mode) |
66 | { |
67 | return mode == CSSViewportRuleMode; |
68 | } |
69 | |
70 | // FIXME-NEWPARSER: Next two functions should be removed eventually. |
71 | inline CSSParserMode strictToCSSParserMode(bool inStrictMode) |
72 | { |
73 | return inStrictMode ? HTMLStandardMode : HTMLQuirksMode; |
74 | } |
75 | |
76 | inline bool isStrictParserMode(CSSParserMode cssParserMode) |
77 | { |
78 | return cssParserMode == UASheetMode || cssParserMode == HTMLStandardMode || cssParserMode == SVGAttributeMode; |
79 | } |
80 | |
81 | } // namespace WebCore |
82 | |