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
|
/* -*- 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/. */
#include "SVGAnimatedNumberPair.h"
#include "nsCharSeparatedTokenizer.h"
#include "SVGAttrTearoffTable.h"
#include "SVGNumberPairSMILType.h"
#include "mozilla/SMILValue.h"
#include "mozilla/SVGContentUtils.h"
#include "nsContentUtils.h"
using namespace mozilla::dom;
namespace mozilla {
//----------------------------------------------------------------------
// Helper class: AutoChangeNumberPairNotifier
// Stack-based helper class to pair calls to WillChangeNumberPair and
// DidChangeNumberPair.
class MOZ_RAII AutoChangeNumberPairNotifier {
public:
AutoChangeNumberPairNotifier(SVGAnimatedNumberPair* aNumberPair,
SVGElement* aSVGElement, bool aDoSetAttr = true)
: mNumberPair(aNumberPair),
mSVGElement(aSVGElement),
mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mNumberPair, "Expecting non-null numberPair");
MOZ_ASSERT(mSVGElement, "Expecting non-null element");
if (mDoSetAttr) {
mEmptyOrOldValue =
mSVGElement->WillChangeNumberPair(mNumberPair->mAttrEnum);
}
}
~AutoChangeNumberPairNotifier() {
if (mDoSetAttr) {
mSVGElement->DidChangeNumberPair(mNumberPair->mAttrEnum,
mEmptyOrOldValue);
}
if (mNumberPair->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
private:
SVGAnimatedNumberPair* const mNumberPair;
SVGElement* const mSVGElement;
nsAttrValue mEmptyOrOldValue;
bool mDoSetAttr;
};
static SVGAttrTearoffTable<SVGAnimatedNumberPair,
SVGAnimatedNumberPair::DOMAnimatedNumber>
sSVGFirstAnimatedNumberTearoffTable;
static SVGAttrTearoffTable<SVGAnimatedNumberPair,
SVGAnimatedNumberPair::DOMAnimatedNumber>
sSVGSecondAnimatedNumberTearoffTable;
static nsresult ParseNumberOptionalNumber(const nsAString& aValue,
float aValues[2]) {
nsCharSeparatedTokenizerTemplate<nsContentUtils::IsHTMLWhitespace,
nsTokenizerFlags::SeparatorOptional>
tokenizer(aValue, ',');
uint32_t i;
for (i = 0; i < 2 && tokenizer.hasMoreTokens(); ++i) {
if (!SVGContentUtils::ParseNumber(tokenizer.nextToken(), aValues[i])) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
}
if (i == 1) {
aValues[1] = aValues[0];
}
if (i == 0 || // Too few values.
tokenizer.hasMoreTokens() || // Too many values.
tokenizer.separatorAfterCurrentToken()) { // Trailing comma.
return NS_ERROR_DOM_SYNTAX_ERR;
}
return NS_OK;
}
nsresult SVGAnimatedNumberPair::SetBaseValueString(
const nsAString& aValueAsString, SVGElement* aSVGElement) {
float val[2];
nsresult rv = ParseNumberOptionalNumber(aValueAsString, val);
if (NS_FAILED(rv)) {
return rv;
}
// We don't need to call Will/DidChange* here - we're only called by
// SVGElement::ParseAttribute under Element::SetAttr,
// which takes care of notifying.
AutoChangeNumberPairNotifier notifier(this, aSVGElement, false);
mBaseVal[0] = val[0];
mBaseVal[1] = val[1];
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal[0] = mBaseVal[0];
mAnimVal[1] = mBaseVal[1];
}
return NS_OK;
}
void SVGAnimatedNumberPair::GetBaseValueString(
nsAString& aValueAsString) const {
aValueAsString.Truncate();
aValueAsString.AppendFloat(mBaseVal[0]);
if (mBaseVal[0] != mBaseVal[1]) {
aValueAsString.AppendLiteral(", ");
aValueAsString.AppendFloat(mBaseVal[1]);
}
}
void SVGAnimatedNumberPair::SetBaseValue(float aValue, PairIndex aPairIndex,
SVGElement* aSVGElement) {
uint32_t index = (aPairIndex == eFirst ? 0 : 1);
if (mIsBaseSet && mBaseVal[index] == aValue) {
return;
}
AutoChangeNumberPairNotifier notifier(this, aSVGElement);
mBaseVal[index] = aValue;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal[index] = aValue;
}
}
void SVGAnimatedNumberPair::SetBaseValues(float aValue1, float aValue2,
SVGElement* aSVGElement) {
if (mIsBaseSet && mBaseVal[0] == aValue1 && mBaseVal[1] == aValue2) {
return;
}
AutoChangeNumberPairNotifier notifier(this, aSVGElement);
mBaseVal[0] = aValue1;
mBaseVal[1] = aValue2;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal[0] = aValue1;
mAnimVal[1] = aValue2;
}
}
void SVGAnimatedNumberPair::SetAnimValue(const float aValue[2],
SVGElement* aSVGElement) {
if (mIsAnimated && mAnimVal[0] == aValue[0] && mAnimVal[1] == aValue[1]) {
return;
}
mAnimVal[0] = aValue[0];
mAnimVal[1] = aValue[1];
mIsAnimated = true;
aSVGElement->DidAnimateNumberPair(mAttrEnum);
}
already_AddRefed<DOMSVGAnimatedNumber>
SVGAnimatedNumberPair::ToDOMAnimatedNumber(PairIndex aIndex,
SVGElement* aSVGElement) {
RefPtr<DOMAnimatedNumber> domAnimatedNumber =
aIndex == eFirst ? sSVGFirstAnimatedNumberTearoffTable.GetTearoff(this)
: sSVGSecondAnimatedNumberTearoffTable.GetTearoff(this);
if (!domAnimatedNumber) {
domAnimatedNumber = new DOMAnimatedNumber(this, aIndex, aSVGElement);
if (aIndex == eFirst) {
sSVGFirstAnimatedNumberTearoffTable.AddTearoff(this, domAnimatedNumber);
} else {
sSVGSecondAnimatedNumberTearoffTable.AddTearoff(this, domAnimatedNumber);
}
}
return domAnimatedNumber.forget();
}
SVGAnimatedNumberPair::DOMAnimatedNumber::~DOMAnimatedNumber() {
if (mIndex == eFirst) {
sSVGFirstAnimatedNumberTearoffTable.RemoveTearoff(mVal);
} else {
sSVGSecondAnimatedNumberTearoffTable.RemoveTearoff(mVal);
}
}
UniquePtr<SMILAttr> SVGAnimatedNumberPair::ToSMILAttr(SVGElement* aSVGElement) {
return MakeUnique<SMILNumberPair>(this, aSVGElement);
}
nsresult SVGAnimatedNumberPair::SMILNumberPair::ValueFromString(
const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
float values[2];
nsresult rv = ParseNumberOptionalNumber(aStr, values);
if (NS_FAILED(rv)) {
return rv;
}
SMILValue val(&SVGNumberPairSMILType::sSingleton);
val.mU.mNumberPair[0] = values[0];
val.mU.mNumberPair[1] = values[1];
aValue = val;
return NS_OK;
}
SMILValue SVGAnimatedNumberPair::SMILNumberPair::GetBaseValue() const {
SMILValue val(&SVGNumberPairSMILType::sSingleton);
val.mU.mNumberPair[0] = mVal->mBaseVal[0];
val.mU.mNumberPair[1] = mVal->mBaseVal[1];
return val;
}
void SVGAnimatedNumberPair::SMILNumberPair::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal[0] = mVal->mBaseVal[0];
mVal->mAnimVal[1] = mVal->mBaseVal[1];
mSVGElement->DidAnimateNumberPair(mVal->mAttrEnum);
}
}
nsresult SVGAnimatedNumberPair::SMILNumberPair::SetAnimValue(
const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == &SVGNumberPairSMILType::sSingleton,
"Unexpected type to assign animated value");
if (aValue.mType == &SVGNumberPairSMILType::sSingleton) {
mVal->SetAnimValue(aValue.mU.mNumberPair, mSVGElement);
}
return NS_OK;
}
} // namespace mozilla
|
