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
|
/* -*- 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 "SVGAnimatedBoolean.h"
#include "DOMSVGAnimatedBoolean.h"
#include "nsError.h"
#include "SMILBoolType.h"
#include "SVGAttrTearoffTable.h"
#include "mozilla/SMILValue.h"
using namespace mozilla::dom;
namespace mozilla {
/* Implementation */
//----------------------------------------------------------------------
// Helper class: AutoChangeBooleanNotifier
// Stack-based helper class to ensure DidChangeBoolean is called.
class MOZ_RAII AutoChangeBooleanNotifier {
public:
AutoChangeBooleanNotifier(SVGAnimatedBoolean* aBoolean,
SVGElement* aSVGElement, bool aDoSetAttr = true)
: mBoolean(aBoolean), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
MOZ_ASSERT(mBoolean, "Expecting non-null boolean");
MOZ_ASSERT(mSVGElement, "Expecting non-null element");
}
~AutoChangeBooleanNotifier() {
if (mDoSetAttr) {
mSVGElement->DidChangeBoolean(mBoolean->mAttrEnum);
}
if (mBoolean->mIsAnimated) {
mSVGElement->AnimationNeedsResample();
}
}
private:
SVGAnimatedBoolean* const mBoolean;
SVGElement* const mSVGElement;
bool mDoSetAttr;
};
static inline SVGAttrTearoffTable<SVGAnimatedBoolean, DOMSVGAnimatedBoolean>&
SVGAnimatedBooleanTearoffTable() {
static SVGAttrTearoffTable<SVGAnimatedBoolean, DOMSVGAnimatedBoolean>
sSVGAnimatedBooleanTearoffTable;
return sSVGAnimatedBooleanTearoffTable;
}
static bool GetValueFromString(const nsAString& aValueAsString, bool& aValue) {
if (aValueAsString.EqualsLiteral("true")) {
aValue = true;
return true;
}
if (aValueAsString.EqualsLiteral("false")) {
aValue = false;
return true;
}
return false;
}
static nsresult GetValueFromAtom(const nsAtom* aValueAsAtom, bool* aValue) {
if (aValueAsAtom == nsGkAtoms::_true) {
*aValue = true;
return NS_OK;
}
if (aValueAsAtom == nsGkAtoms::_false) {
*aValue = false;
return NS_OK;
}
return NS_ERROR_DOM_SYNTAX_ERR;
}
nsresult SVGAnimatedBoolean::SetBaseValueAtom(const nsAtom* aValue,
SVGElement* aSVGElement) {
bool val = false;
nsresult rv = GetValueFromAtom(aValue, &val);
if (NS_FAILED(rv)) {
return rv;
}
// We don't need to call DidChange* here - we're only called by
// SVGElement::ParseAttribute under Element::SetAttr,
// which takes care of notifying.
AutoChangeBooleanNotifier notifier(this, aSVGElement, false);
mBaseVal = val;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
return NS_OK;
}
nsAtom* SVGAnimatedBoolean::GetBaseValueAtom() const {
return mBaseVal ? nsGkAtoms::_true : nsGkAtoms::_false;
}
void SVGAnimatedBoolean::SetBaseValue(bool aValue, SVGElement* aSVGElement) {
if (aValue == mBaseVal) {
return;
}
AutoChangeBooleanNotifier notifier(this, aSVGElement);
mBaseVal = aValue;
if (!mIsAnimated) {
mAnimVal = mBaseVal;
}
}
void SVGAnimatedBoolean::SetAnimValue(bool aValue, SVGElement* aSVGElement) {
if (mIsAnimated && mAnimVal == aValue) {
return;
}
mAnimVal = aValue;
mIsAnimated = true;
aSVGElement->DidAnimateBoolean(mAttrEnum);
}
already_AddRefed<DOMSVGAnimatedBoolean>
SVGAnimatedBoolean::ToDOMAnimatedBoolean(SVGElement* aSVGElement) {
RefPtr<DOMSVGAnimatedBoolean> domAnimatedBoolean =
SVGAnimatedBooleanTearoffTable().GetTearoff(this);
if (!domAnimatedBoolean) {
domAnimatedBoolean = new DOMSVGAnimatedBoolean(this, aSVGElement);
SVGAnimatedBooleanTearoffTable().AddTearoff(this, domAnimatedBoolean);
}
return domAnimatedBoolean.forget();
}
DOMSVGAnimatedBoolean::~DOMSVGAnimatedBoolean() {
SVGAnimatedBooleanTearoffTable().RemoveTearoff(mVal);
}
UniquePtr<SMILAttr> SVGAnimatedBoolean::ToSMILAttr(SVGElement* aSVGElement) {
return MakeUnique<SMILBool>(this, aSVGElement);
}
nsresult SVGAnimatedBoolean::SMILBool::ValueFromString(
const nsAString& aStr, const SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
bool value;
if (!GetValueFromString(aStr, value)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
SMILValue val(SMILBoolType::Singleton());
val.mU.mBool = value;
aValue = val;
aPreventCachingOfSandwich = false;
return NS_OK;
}
SMILValue SVGAnimatedBoolean::SMILBool::GetBaseValue() const {
SMILValue val(SMILBoolType::Singleton());
val.mU.mBool = mVal->mBaseVal;
return val;
}
void SVGAnimatedBoolean::SMILBool::ClearAnimValue() {
if (mVal->mIsAnimated) {
mVal->mIsAnimated = false;
mVal->mAnimVal = mVal->mBaseVal;
mSVGElement->DidAnimateBoolean(mVal->mAttrEnum);
}
}
nsresult SVGAnimatedBoolean::SMILBool::SetAnimValue(const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == SMILBoolType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == SMILBoolType::Singleton()) {
mVal->SetAnimValue(uint16_t(aValue.mU.mBool), mSVGElement);
}
return NS_OK;
}
} // namespace mozilla
|
