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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* DOM object representing values in DOM computed style */
#include "nsROCSSPrimitiveValue.h"
#include "nsPresContext.h"
#include "nsStyleUtil.h"
#include "nsIURI.h"
#include "nsError.h"
using namespace mozilla;
using namespace mozilla::dom;
nsROCSSPrimitiveValue::nsROCSSPrimitiveValue() : CSSValue(), mType(CSS_PX) {
mValue.mFloat = 0.0f;
}
nsROCSSPrimitiveValue::~nsROCSSPrimitiveValue() { Reset(); }
void nsROCSSPrimitiveValue::GetCssText(nsString& aCssText, ErrorResult& aRv) {
nsAutoString tmpStr;
aCssText.Truncate();
switch (mType) {
case CSS_PX: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
tmpStr.AppendLiteral("px");
break;
}
case CSS_STRING: {
tmpStr.Append(mValue.mString);
break;
}
case CSS_URI: {
if (mValue.mURI) {
nsAutoCString specUTF8;
nsresult rv = mValue.mURI->GetSpec(specUTF8);
if (NS_FAILED(rv)) {
aRv.ThrowInvalidStateError("Can't get URL string for url()");
return;
}
tmpStr.AssignLiteral("url(");
nsStyleUtil::AppendEscapedCSSString(NS_ConvertUTF8toUTF16(specUTF8),
tmpStr);
tmpStr.Append(')');
} else {
// http://dev.w3.org/csswg/css3-values/#attr defines
// 'about:invalid' as the default value for url attributes,
// so let's also use it here as the default computed value
// for invalid URLs.
tmpStr.AssignLiteral(u"url(about:invalid)");
}
break;
}
case CSS_PERCENTAGE: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat * 100, tmpStr);
tmpStr.Append(char16_t('%'));
break;
}
case CSS_NUMBER: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
break;
}
case CSS_NUMBER_INT32: {
tmpStr.AppendInt(mValue.mInt32);
break;
}
case CSS_NUMBER_UINT32: {
tmpStr.AppendInt(mValue.mUint32);
break;
}
case CSS_DEG: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
tmpStr.AppendLiteral("deg");
break;
}
case CSS_S: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
tmpStr.Append('s');
break;
}
case CSS_CM:
case CSS_MM:
case CSS_IN:
case CSS_PT:
case CSS_PC:
case CSS_UNKNOWN:
case CSS_EMS:
case CSS_EXS:
case CSS_MS:
case CSS_HZ:
case CSS_KHZ:
case CSS_DIMENSION:
NS_ERROR("We have a bogus value set. This should not happen");
aRv.ThrowInvalidAccessError("Unexpected value in computed style");
return;
}
aCssText.Assign(tmpStr);
}
uint16_t nsROCSSPrimitiveValue::CssValueType() const {
return CSSValue::CSS_PRIMITIVE_VALUE;
}
void nsROCSSPrimitiveValue::SetNumber(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_NUMBER;
}
void nsROCSSPrimitiveValue::SetNumber(int32_t aValue) {
Reset();
mValue.mInt32 = aValue;
mType = CSS_NUMBER_INT32;
}
void nsROCSSPrimitiveValue::SetNumber(uint32_t aValue) {
Reset();
mValue.mUint32 = aValue;
mType = CSS_NUMBER_UINT32;
}
void nsROCSSPrimitiveValue::SetPercent(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_PERCENTAGE;
}
void nsROCSSPrimitiveValue::SetDegree(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_DEG;
}
void nsROCSSPrimitiveValue::SetAppUnits(nscoord aValue) {
SetPixels(nsPresContext::AppUnitsToFloatCSSPixels(aValue));
}
void nsROCSSPrimitiveValue::SetPixels(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_PX;
}
void nsROCSSPrimitiveValue::SetAppUnits(float aValue) {
SetAppUnits(NSToCoordRound(aValue));
}
void nsROCSSPrimitiveValue::SetString(const nsACString& aString) {
Reset();
mValue.mString = ToNewUnicode(aString, mozilla::fallible);
if (mValue.mString) {
mType = CSS_STRING;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void nsROCSSPrimitiveValue::SetString(const nsAString& aString) {
Reset();
mValue.mString = ToNewUnicode(aString, mozilla::fallible);
if (mValue.mString) {
mType = CSS_STRING;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void nsROCSSPrimitiveValue::SetURI(nsIURI* aURI) {
Reset();
mValue.mURI = aURI;
NS_IF_ADDREF(mValue.mURI);
mType = CSS_URI;
}
void nsROCSSPrimitiveValue::SetTime(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_S;
}
void nsROCSSPrimitiveValue::Reset() {
switch (mType) {
case CSS_STRING:
NS_ASSERTION(mValue.mString, "Null string should never happen");
free(mValue.mString);
mValue.mString = nullptr;
break;
case CSS_URI:
NS_IF_RELEASE(mValue.mURI);
break;
}
mType = CSS_UNKNOWN;
}
uint16_t nsROCSSPrimitiveValue::PrimitiveType() {
// New value types were introduced but not added to CSS OM.
// Return CSS_UNKNOWN to avoid exposing CSS_TURN to content.
if (mType > CSS_RGBCOLOR) {
if (mType == CSS_NUMBER_INT32 || mType == CSS_NUMBER_UINT32) {
return CSS_NUMBER;
}
return CSS_UNKNOWN;
}
return mType;
}
|
