1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/css/properties/CSSPropertyLengthUtils.h"
#include "core/css/parser/CSSParserContext.h"
#include "core/css/parser/CSSPropertyParserHelpers.h"
#include "core/frame/UseCounter.h"
namespace blink {
namespace {
bool validWidthOrHeightKeyword(CSSValueID id, const CSSParserContext* context) {
if (id == CSSValueWebkitMinContent || id == CSSValueWebkitMaxContent ||
id == CSSValueWebkitFillAvailable || id == CSSValueWebkitFitContent ||
id == CSSValueMinContent || id == CSSValueMaxContent ||
id == CSSValueFitContent) {
if (context->isUseCounterRecordingEnabled()) {
UseCounter* useCounter = context->useCounter();
switch (id) {
case CSSValueWebkitMinContent:
useCounter->count(UseCounter::CSSValuePrefixedMinContent);
break;
case CSSValueWebkitMaxContent:
useCounter->count(UseCounter::CSSValuePrefixedMaxContent);
break;
case CSSValueWebkitFillAvailable:
useCounter->count(UseCounter::CSSValuePrefixedFillAvailable);
break;
case CSSValueWebkitFitContent:
useCounter->count(UseCounter::CSSValuePrefixedFitContent);
break;
default:
break;
}
}
return true;
}
return false;
}
} // namespace
CSSValue* CSSPropertyLengthUtils::consumeMaxWidthOrHeight(
CSSParserTokenRange& range,
const CSSParserContext* context,
CSSPropertyParserHelpers::UnitlessQuirk unitless) {
if (range.peek().id() == CSSValueNone ||
validWidthOrHeightKeyword(range.peek().id(), context))
return CSSPropertyParserHelpers::consumeIdent(range);
return CSSPropertyParserHelpers::consumeLengthOrPercent(
range, context->mode(), ValueRangeNonNegative, unitless);
}
CSSValue* CSSPropertyLengthUtils::consumeWidthOrHeight(
CSSParserTokenRange& range,
const CSSParserContext* context,
CSSPropertyParserHelpers::UnitlessQuirk unitless) {
if (range.peek().id() == CSSValueAuto ||
validWidthOrHeightKeyword(range.peek().id(), context))
return CSSPropertyParserHelpers::consumeIdent(range);
return CSSPropertyParserHelpers::consumeLengthOrPercent(
range, context->mode(), ValueRangeNonNegative, unitless);
}
} // namespace blink
|
