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
|
/* -*- 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 "SVGAnimatedPreserveAspectRatio.h"
#include "SMILEnumType.h"
#include "SVGAttrTearoffTable.h"
#include "mozAutoDocUpdate.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Maybe.h"
#include "mozilla/SMILValue.h"
#include "mozilla/SVGContentUtils.h"
#include "mozilla/dom/SVGAnimatedPreserveAspectRatioBinding.h"
using namespace mozilla::dom;
namespace mozilla {
////////////////////////////////////////////////////////////////////////
// SVGAnimatedPreserveAspectRatio class
NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(
DOMSVGAnimatedPreserveAspectRatio, mSVGElement)
JSObject* DOMSVGAnimatedPreserveAspectRatio::WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return SVGAnimatedPreserveAspectRatio_Binding::Wrap(aCx, this, aGivenProto);
}
/* Implementation */
//----------------------------------------------------------------------
// Helper class: AutoChangePreserveAspectRatioNotifier
// Stack-based helper class to pair calls to WillChangePreserveAspectRatio and
// DidChangePreserveAspectRatio.
class MOZ_RAII AutoChangePreserveAspectRatioNotifier {
public:
AutoChangePreserveAspectRatioNotifier(
SVGAnimatedPreserveAspectRatio* aPreserveAspectRatio,
SVGElement* aSVGElement, bool aDoSetAttr = true)
: mPreserveAspectRatio(aPreserveAspectRatio),
mSVGElement(aSVGElement),
mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mPreserveAspectRatio, "Expecting non-null preserveAspectRatio");
MOZ_ASSERT(mSVGElement, "Expecting non-null element");
if (mDoSetAttr) {
mUpdateBatch.emplace(aSVGElement->GetComposedDoc(), true);
mEmptyOrOldValue =
mSVGElement->WillChangePreserveAspectRatio(mUpdateBatch.ref());
}
}
~AutoChangePreserveAspectRatioNotifier() {
if (mDoSetAttr) {
mSVGElement->DidChangePreserveAspectRatio(mEmptyOrOldValue,
mUpdateBatch.ref());
}
if (mPreserveAspectRatio->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
private:
SVGAnimatedPreserveAspectRatio* const mPreserveAspectRatio;
SVGElement* const mSVGElement;
Maybe<mozAutoDocUpdate> mUpdateBatch;
nsAttrValue mEmptyOrOldValue;
bool mDoSetAttr;
};
MOZ_CONSTINIT static SVGAttrTearoffTable<SVGAnimatedPreserveAspectRatio,
DOMSVGAnimatedPreserveAspectRatio>
sSVGAnimatedPAspectRatioTearoffTable;
MOZ_CONSTINIT static SVGAttrTearoffTable<SVGAnimatedPreserveAspectRatio,
DOMSVGPreserveAspectRatio>
sBaseSVGPAspectRatioTearoffTable;
MOZ_CONSTINIT static SVGAttrTearoffTable<SVGAnimatedPreserveAspectRatio,
DOMSVGPreserveAspectRatio>
sAnimSVGPAspectRatioTearoffTable;
already_AddRefed<DOMSVGPreserveAspectRatio>
DOMSVGAnimatedPreserveAspectRatio::BaseVal() {
RefPtr<DOMSVGPreserveAspectRatio> domBaseVal =
sBaseSVGPAspectRatioTearoffTable.GetTearoff(mVal);
if (!domBaseVal) {
domBaseVal = new DOMSVGPreserveAspectRatio(mVal, mSVGElement, true);
sBaseSVGPAspectRatioTearoffTable.AddTearoff(mVal, domBaseVal);
}
return domBaseVal.forget();
}
DOMSVGPreserveAspectRatio::~DOMSVGPreserveAspectRatio() {
if (mIsBaseValue) {
sBaseSVGPAspectRatioTearoffTable.RemoveTearoff(mVal);
} else {
sAnimSVGPAspectRatioTearoffTable.RemoveTearoff(mVal);
}
}
already_AddRefed<DOMSVGPreserveAspectRatio>
DOMSVGAnimatedPreserveAspectRatio::AnimVal() {
RefPtr<DOMSVGPreserveAspectRatio> domAnimVal =
sAnimSVGPAspectRatioTearoffTable.GetTearoff(mVal);
if (!domAnimVal) {
domAnimVal = new DOMSVGPreserveAspectRatio(mVal, mSVGElement, false);
sAnimSVGPAspectRatioTearoffTable.AddTearoff(mVal, domAnimVal);
}
return domAnimVal.forget();
}
nsresult SVGAnimatedPreserveAspectRatio::SetBaseValueString(
const nsAString& aValueAsString, SVGElement* aSVGElement, bool aDoSetAttr) {
SVGPreserveAspectRatio val;
nsresult res = SVGPreserveAspectRatio::FromString(aValueAsString, &val);
if (NS_FAILED(res)) {
return res;
}
AutoChangePreserveAspectRatioNotifier notifier(this, aSVGElement, aDoSetAttr);
mBaseVal = val;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
return NS_OK;
}
void SVGAnimatedPreserveAspectRatio::GetBaseValueString(
nsAString& aValueAsString) const {
mBaseVal.ToString(aValueAsString);
}
void SVGAnimatedPreserveAspectRatio::SetBaseValue(
const SVGPreserveAspectRatio& aValue, SVGElement* aSVGElement) {
if (mIsBaseSet && mBaseVal == aValue) {
return;
}
AutoChangePreserveAspectRatioNotifier notifier(this, aSVGElement);
mBaseVal = aValue;
mIsBaseSet = true;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
}
static uint64_t PackPreserveAspectRatio(const SVGPreserveAspectRatio& par) {
// All preserveAspectRatio values are enum values (do not interpolate), so we
// can safely collate them and treat them as a single enum as for SMIL.
uint64_t packed = 0;
packed |= uint64_t(par.GetAlign()) << 8;
packed |= uint64_t(par.GetMeetOrSlice());
return packed;
}
void SVGAnimatedPreserveAspectRatio::SetAnimValue(uint64_t aPackedValue,
SVGElement* aSVGElement) {
if (mIsAnimated && PackPreserveAspectRatio(mAnimVal) == aPackedValue) {
return;
}
mAnimVal.SetAlign(uint16_t((aPackedValue & 0xff00) >> 8));
mAnimVal.SetMeetOrSlice(uint16_t(aPackedValue & 0xff));
mIsAnimated = true;
aSVGElement->DidAnimatePreserveAspectRatio();
}
already_AddRefed<DOMSVGAnimatedPreserveAspectRatio>
SVGAnimatedPreserveAspectRatio::ToDOMAnimatedPreserveAspectRatio(
SVGElement* aSVGElement) {
RefPtr<DOMSVGAnimatedPreserveAspectRatio> domAnimatedPAspectRatio =
sSVGAnimatedPAspectRatioTearoffTable.GetTearoff(this);
if (!domAnimatedPAspectRatio) {
domAnimatedPAspectRatio =
new DOMSVGAnimatedPreserveAspectRatio(this, aSVGElement);
sSVGAnimatedPAspectRatioTearoffTable.AddTearoff(this,
domAnimatedPAspectRatio);
}
return domAnimatedPAspectRatio.forget();
}
DOMSVGAnimatedPreserveAspectRatio::~DOMSVGAnimatedPreserveAspectRatio() {
sSVGAnimatedPAspectRatioTearoffTable.RemoveTearoff(mVal);
}
UniquePtr<SMILAttr> SVGAnimatedPreserveAspectRatio::ToSMILAttr(
SVGElement* aSVGElement) {
return MakeUnique<SMILPreserveAspectRatio>(this, aSVGElement);
}
// typedef for inner class, to make function signatures shorter below:
using SMILPreserveAspectRatio =
SVGAnimatedPreserveAspectRatio::SMILPreserveAspectRatio;
nsresult SMILPreserveAspectRatio::ValueFromString(
const nsAString& aStr, const SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
SVGPreserveAspectRatio par;
nsresult res = SVGPreserveAspectRatio::FromString(aStr, &par);
NS_ENSURE_SUCCESS(res, res);
SMILValue val(SMILEnumType::Singleton());
val.mU.mUint = PackPreserveAspectRatio(par);
aValue = val;
return NS_OK;
}
SMILValue SMILPreserveAspectRatio::GetBaseValue() const {
SMILValue val(SMILEnumType::Singleton());
val.mU.mUint = PackPreserveAspectRatio(mVal->GetBaseValue());
return val;
}
void SMILPreserveAspectRatio::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimatePreserveAspectRatio();
}
}
nsresult SMILPreserveAspectRatio::SetAnimValue(const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == SMILEnumType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == SMILEnumType::Singleton()) {
mVal->SetAnimValue(aValue.mU.mUint, mSVGElement);
}
return NS_OK;
}
} // namespace mozilla
|
