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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CSSCalcPrimitiveValueNode.h"
#include "CSSCalcCategoryMapping.h"
#include "CSSPrimitiveValue.h"
#include "CSSPrimitiveValueMappings.h"
#include "CalcExpressionLength.h"
#include "CalcExpressionNumber.h"
#include "CalculationValue.h"
#include "Logging.h"
#include <wtf/text/TextStream.h>
namespace WebCore {
Ref<CSSCalcPrimitiveValueNode> CSSCalcPrimitiveValueNode::create(Ref<CSSPrimitiveValue>&& value)
{
return adoptRef(*new CSSCalcPrimitiveValueNode(WTFMove(value)));
}
RefPtr<CSSCalcPrimitiveValueNode> CSSCalcPrimitiveValueNode::create(double value, CSSUnitType type)
{
if (!std::isfinite(value))
return nullptr;
return adoptRef(new CSSCalcPrimitiveValueNode(CSSPrimitiveValue::create(value, type)));
}
String CSSCalcPrimitiveValueNode::customCSSText() const
{
return m_value->cssText();
}
CSSUnitType CSSCalcPrimitiveValueNode::primitiveType() const
{
return m_value->primitiveType();
}
CSSCalcPrimitiveValueNode::CSSCalcPrimitiveValueNode(Ref<CSSPrimitiveValue>&& value)
: CSSCalcExpressionNode(calcUnitCategory(value->primitiveType()))
, m_value(WTFMove(value))
{
}
// FIXME: Use calcUnitCategory?
bool CSSCalcPrimitiveValueNode::isNumericValue() const
{
return m_value->isLength() || m_value->isNumber() || m_value->isInteger() || m_value->isPercentage() || m_value->isAngle()
|| m_value->isTime() || m_value->isResolution() || m_value->isFlex() || m_value->isFrequency();
}
bool CSSCalcPrimitiveValueNode::isNegative() const
{
return isNumericValue() && m_value->doubleValue() < 0.0;
}
void CSSCalcPrimitiveValueNode::negate()
{
ASSERT(isNumericValue());
m_value = CSSPrimitiveValue::create(0.0 - m_value->doubleValue(), m_value->primitiveType());
}
void CSSCalcPrimitiveValueNode::invert()
{
ASSERT(isNumericValue());
m_value = CSSPrimitiveValue::create(1.0 / m_value->doubleValue(), m_value->primitiveType());
}
void CSSCalcPrimitiveValueNode::add(const CSSCalcPrimitiveValueNode& node, UnitConversion unitConversion)
{
auto valueType = m_value->primitiveType();
switch (unitConversion) {
case UnitConversion::Invalid:
ASSERT_NOT_REACHED();
break;
case UnitConversion::Preserve:
ASSERT(node.primitiveType() == valueType);
m_value = CSSPrimitiveValue::create(m_value->doubleValue() + node.doubleValue(valueType), valueType);
break;
case UnitConversion::Canonicalize: {
auto canonicalType = canonicalUnitTypeForUnitType(valueType);
ASSERT(canonicalType != CSSUnitType::CSS_UNKNOWN);
double leftValue = m_value->doubleValue(canonicalType);
double rightValue = node.doubleValue(canonicalType);
m_value = CSSPrimitiveValue::create(leftValue + rightValue, canonicalType);
break;
}
}
}
void CSSCalcPrimitiveValueNode::multiply(double multiplier)
{
auto valueType = m_value->primitiveType();
ASSERT(hasDoubleValue(valueType));
m_value = CSSPrimitiveValue::create(m_value->doubleValue(valueType) * multiplier, valueType);
}
void CSSCalcPrimitiveValueNode::convertToUnitType(CSSUnitType unitType)
{
ASSERT(unitCategory(unitType) == unitCategory(m_value->primitiveType()));
double newValue = m_value->doubleValue(unitType);
m_value = CSSPrimitiveValue::create(newValue, unitType);
}
void CSSCalcPrimitiveValueNode::canonicalizeUnit()
{
auto category = calculationCategoryForCombination(m_value->primitiveType());
if (category == CalculationCategory::Other)
return;
auto canonicalType = canonicalUnitTypeForCalculationCategory(category);
if (canonicalType == m_value->primitiveType())
return;
double newValue = m_value->doubleValue(canonicalType);
m_value = CSSPrimitiveValue::create(newValue, canonicalType);
}
std::unique_ptr<CalcExpressionNode> CSSCalcPrimitiveValueNode::createCalcExpression(const CSSToLengthConversionData& conversionData) const
{
switch (category()) {
case CalculationCategory::Number:
return makeUnique<CalcExpressionNumber>(m_value->floatValue());
case CalculationCategory::Length:
return makeUnique<CalcExpressionLength>(Length(m_value->computeLength<float>(conversionData), LengthType::Fixed));
case CalculationCategory::Percent:
case CalculationCategory::PercentLength: {
return makeUnique<CalcExpressionLength>(m_value->convertToLength<FixedFloatConversion | PercentConversion>(conversionData));
}
// Only types that could be part of a Length expression can be converted
// to a CalcExpressionNode. CalculationCategory::PercentNumber makes no sense as a Length.
case CalculationCategory::PercentNumber:
case CalculationCategory::Angle:
case CalculationCategory::Time:
case CalculationCategory::Frequency:
case CalculationCategory::Resolution:
case CalculationCategory::Other:
ASSERT_NOT_REACHED();
}
ASSERT_NOT_REACHED();
return nullptr;
}
double CSSCalcPrimitiveValueNode::doubleValue(CSSUnitType unitType) const
{
if (hasDoubleValue(unitType)) {
// FIXME: This should ASSERT(unitCategory(m_value->primitiveType()) == unitCategory(unitType)), but only when all callers are fixed (e.g. webkit.org/b/204826).
if (unitCategory(m_value->primitiveType()) != unitCategory(unitType)) {
LOG_WITH_STREAM(Calc, stream << "Calling doubleValue() with unit " << unitType << " on a node of unit type " << m_value->primitiveType() << " which is incompatible");
return 0;
}
return m_value->doubleValue(unitType);
}
ASSERT_NOT_REACHED();
return 0;
}
double CSSCalcPrimitiveValueNode::computeLengthPx(const CSSToLengthConversionData& conversionData) const
{
switch (category()) {
case CalculationCategory::Length:
return m_value->computeLength<double>(conversionData);
case CalculationCategory::Percent:
case CalculationCategory::Number:
return m_value->doubleValue();
case CalculationCategory::PercentLength:
case CalculationCategory::PercentNumber:
case CalculationCategory::Angle:
case CalculationCategory::Time:
case CalculationCategory::Frequency:
case CalculationCategory::Resolution:
case CalculationCategory::Other:
ASSERT_NOT_REACHED();
break;
}
ASSERT_NOT_REACHED();
return 0;
}
void CSSCalcPrimitiveValueNode::collectComputedStyleDependencies(ComputedStyleDependencies& dependencies) const
{
m_value->collectComputedStyleDependencies(dependencies);
}
bool CSSCalcPrimitiveValueNode::convertingToLengthRequiresNonNullStyle(int lengthConversion) const
{
return m_value->convertingToLengthRequiresNonNullStyle(lengthConversion);
}
bool CSSCalcPrimitiveValueNode::isZero() const
{
return !m_value->doubleValue();
}
bool CSSCalcPrimitiveValueNode::equals(const CSSCalcExpressionNode& other) const
{
if (type() != other.type())
return false;
return compareCSSValue(m_value, static_cast<const CSSCalcPrimitiveValueNode&>(other).m_value);
}
void CSSCalcPrimitiveValueNode::dump(TextStream& ts) const
{
ts << "value " << m_value->customCSSText() << " (category: " << category() << ", type: " << primitiveType() << ")";
}
}
|
