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
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include "AccAttributes.h"
#include "StyleInfo.h"
#include "mozilla/ToString.h"
#include "nsAtom.h"
using namespace mozilla::a11y;
bool AccAttributes::GetAttribute(nsAtom* aAttrName,
nsAString& aAttrValue) const {
if (auto value = mData.Lookup(aAttrName)) {
StringFromValueAndName(aAttrName, *value, aAttrValue);
return true;
}
return false;
}
void AccAttributes::StringFromValueAndName(nsAtom* aAttrName,
const AttrValueType& aValue,
nsAString& aValueString) {
aValueString.Truncate();
aValue.match(
[&aValueString](const bool& val) {
aValueString.Assign(val ? u"true" : u"false");
},
[&aValueString](const float& val) {
aValueString.AppendFloat(val * 100);
aValueString.Append(u"%");
},
[&aValueString](const double& val) { aValueString.AppendFloat(val); },
[&aValueString](const int32_t& val) { aValueString.AppendInt(val); },
[&aValueString](const RefPtr<nsAtom>& val) {
val->ToString(aValueString);
},
[&aValueString](const nsTArray<int32_t>& val) {
if (const size_t len = val.Length()) {
for (size_t i = 0; i < len - 1; i++) {
aValueString.AppendInt(val[i]);
aValueString.Append(u", ");
}
aValueString.AppendInt(val[len - 1]);
} else {
// The array is empty
NS_WARNING(
"Hmm, should we have used a DeleteEntry() for this instead?");
aValueString.Append(u"[ ]");
}
},
[&aValueString](const CSSCoord& val) {
aValueString.AppendFloat(val);
aValueString.Append(u"px");
},
[&aValueString](const FontSize& val) {
aValueString.AppendInt(val.mValue);
aValueString.Append(u"pt");
},
[&aValueString](const Color& val) {
StyleInfo::FormatColor(val.mValue, aValueString);
},
[&aValueString](const DeleteEntry& val) {
aValueString.Append(u"-delete-entry-");
},
[&aValueString](const UniquePtr<nsString>& val) {
aValueString.Assign(*val);
},
[&aValueString](const RefPtr<AccAttributes>& val) {
aValueString.Assign(u"AccAttributes{...}");
},
[&aValueString](const uint64_t& val) { aValueString.AppendInt(val); },
[&aValueString](const UniquePtr<AccGroupInfo>& val) {
aValueString.Assign(u"AccGroupInfo{...}");
},
[&aValueString](const UniquePtr<gfx::Matrix4x4>& val) {
aValueString.AppendPrintf("Matrix4x4=%s", ToString(*val).c_str());
},
[&aValueString](const nsTArray<uint64_t>& val) {
if (const size_t len = val.Length()) {
for (size_t i = 0; i < len - 1; i++) {
aValueString.AppendInt(val[i]);
aValueString.Append(u", ");
}
aValueString.AppendInt(val[len - 1]);
} else {
// The array is empty
NS_WARNING(
"Hmm, should we have used a DeleteEntry() for this instead?");
aValueString.Append(u"[ ]");
}
});
}
void AccAttributes::Update(AccAttributes* aOther) {
for (auto iter = aOther->mData.Iter(); !iter.Done(); iter.Next()) {
if (iter.Data().is<DeleteEntry>()) {
mData.Remove(iter.Key());
} else {
mData.InsertOrUpdate(iter.Key(), std::move(iter.Data()));
}
iter.Remove();
}
}
bool AccAttributes::Equal(const AccAttributes* aOther) const {
if (Count() != aOther->Count()) {
return false;
}
for (auto iter = mData.ConstIter(); !iter.Done(); iter.Next()) {
const auto otherEntry = aOther->mData.Lookup(iter.Key());
if (!otherEntry) {
return false;
}
if (iter.Data().is<UniquePtr<nsString>>()) {
// Because we store nsString in a UniquePtr, we must handle it specially
// so we compare the string and not the pointer.
if (!otherEntry->is<UniquePtr<nsString>>()) {
return false;
}
const auto& thisStr = iter.Data().as<UniquePtr<nsString>>();
const auto& otherStr = otherEntry->as<UniquePtr<nsString>>();
if (*thisStr != *otherStr) {
return false;
}
} else if (iter.Data() != otherEntry.Data()) {
return false;
}
}
return true;
}
void AccAttributes::CopyTo(AccAttributes* aDest) const {
for (auto iter = mData.ConstIter(); !iter.Done(); iter.Next()) {
iter.Data().match(
[&iter, &aDest](const bool& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[&iter, &aDest](const float& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[&iter, &aDest](const double& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[&iter, &aDest](const int32_t& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[&iter, &aDest](const RefPtr<nsAtom>& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[](const nsTArray<int32_t>& val) {
// We don't copy arrays.
MOZ_ASSERT_UNREACHABLE(
"Trying to copy an AccAttributes containing an array");
},
[&iter, &aDest](const CSSCoord& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[&iter, &aDest](const FontSize& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[&iter, &aDest](const Color& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[](const DeleteEntry& val) {
// We don't copy DeleteEntry.
MOZ_ASSERT_UNREACHABLE(
"Trying to copy an AccAttributes containing a DeleteEntry");
},
[&iter, &aDest](const UniquePtr<nsString>& val) {
aDest->SetAttributeStringCopy(iter.Key(), *val);
},
[](const RefPtr<AccAttributes>& val) {
// We don't copy nested AccAttributes.
MOZ_ASSERT_UNREACHABLE(
"Trying to copy an AccAttributes containing an AccAttributes");
},
[&iter, &aDest](const uint64_t& val) {
aDest->mData.InsertOrUpdate(iter.Key(), AsVariant(val));
},
[](const UniquePtr<AccGroupInfo>& val) {
MOZ_ASSERT_UNREACHABLE(
"Trying to copy an AccAttributes containing an AccGroupInfo");
},
[](const UniquePtr<gfx::Matrix4x4>& val) {
MOZ_ASSERT_UNREACHABLE(
"Trying to copy an AccAttributes containing a matrix");
},
[](const nsTArray<uint64_t>& val) {
// We don't copy arrays.
MOZ_ASSERT_UNREACHABLE(
"Trying to copy an AccAttributes containing an array");
});
}
}
#ifdef A11Y_LOG
void AccAttributes::DebugPrint(const char* aPrefix,
const AccAttributes& aAttributes) {
nsAutoString prettyString;
prettyString.AssignLiteral("{\n");
for (const auto& iter : aAttributes) {
nsAutoString name;
iter.NameAsString(name);
nsAutoString value;
iter.ValueAsString(value);
prettyString.AppendLiteral(" ");
prettyString.Append(name);
prettyString.AppendLiteral(": ");
prettyString.Append(value);
prettyString.AppendLiteral("\n");
}
prettyString.AppendLiteral("}");
printf("%s %s\n", aPrefix, NS_ConvertUTF16toUTF8(prettyString).get());
}
#endif
size_t AccAttributes::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) {
size_t size =
aMallocSizeOf(this) + mData.ShallowSizeOfExcludingThis(aMallocSizeOf);
for (auto iter : *this) {
size += iter.SizeOfExcludingThis(aMallocSizeOf);
}
return size;
}
size_t AccAttributes::Entry::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) {
size_t size = 0;
// We don't count the size of Name() since it's counted by the atoms table
// memory reporter.
if (mValue->is<nsTArray<int32_t>>()) {
size += mValue->as<nsTArray<int32_t>>().ShallowSizeOfExcludingThis(
aMallocSizeOf);
} else if (mValue->is<UniquePtr<nsString>>()) {
// String data will never be shared.
size += mValue->as<UniquePtr<nsString>>()->SizeOfIncludingThisIfUnshared(
aMallocSizeOf);
} else if (mValue->is<RefPtr<AccAttributes>>()) {
size +=
mValue->as<RefPtr<AccAttributes>>()->SizeOfIncludingThis(aMallocSizeOf);
} else if (mValue->is<UniquePtr<AccGroupInfo>>()) {
size += mValue->as<UniquePtr<AccGroupInfo>>()->SizeOfIncludingThis(
aMallocSizeOf);
} else if (mValue->is<UniquePtr<gfx::Matrix4x4>>()) {
size += aMallocSizeOf(mValue->as<UniquePtr<gfx::Matrix4x4>>().get());
} else if (mValue->is<nsTArray<uint64_t>>()) {
size += mValue->as<nsTArray<uint64_t>>().ShallowSizeOfExcludingThis(
aMallocSizeOf);
} else {
// This type is stored directly and already counted or is an atom and
// stored and counted in the atoms table.
// Assert that we have exhausted all the remaining variant types.
MOZ_ASSERT(mValue->is<RefPtr<nsAtom>>() || mValue->is<bool>() ||
mValue->is<float>() || mValue->is<double>() ||
mValue->is<int32_t>() || mValue->is<uint64_t>() ||
mValue->is<CSSCoord>() || mValue->is<FontSize>() ||
mValue->is<Color>() || mValue->is<DeleteEntry>());
}
return size;
}
|
