| 1 | /*
|
|---|
| 2 | * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
|
|---|
| 3 | * Copyright (C) 2012-2020 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 | // SVG attributes are parsed in quirks mode but rules differ slightly.
|
|---|
| 40 | SVGAttributeMode,
|
|---|
| 41 | // @viewport rules are parsed in standards mode but CSSOM modifications (via StylePropertySet)
|
|---|
| 42 | // must call parseViewportProperties so needs a special mode.
|
|---|
| 43 | CSSViewportRuleMode,
|
|---|
| 44 | // User agent stylesheets are parsed in standards mode but also allows internal properties and values.
|
|---|
| 45 | UASheetMode,
|
|---|
| 46 | // WebVTT places limitations on external resources.
|
|---|
| 47 | WebVTTMode
|
|---|
| 48 | };
|
|---|
| 49 |
|
|---|
| 50 | inline bool isQuirksModeBehavior(CSSParserMode mode)
|
|---|
| 51 | {
|
|---|
| 52 | return mode == HTMLQuirksMode;
|
|---|
| 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 == 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 | switch (cssParserMode) {
|
|---|
| 79 | case UASheetMode:
|
|---|
| 80 | case HTMLStandardMode:
|
|---|
| 81 | case SVGAttributeMode:
|
|---|
| 82 | case WebVTTMode:
|
|---|
| 83 | return true;
|
|---|
| 84 | case HTMLQuirksMode:
|
|---|
| 85 | case CSSViewportRuleMode:
|
|---|
| 86 | return false;
|
|---|
| 87 | }
|
|---|
| 88 | ASSERT_NOT_REACHED();
|
|---|
| 89 | return false;
|
|---|
| 90 | }
|
|---|
| 91 |
|
|---|
| 92 | } // namespace WebCore
|
|---|
