Convert resetAnimValToBaseVal take a reference to a SVGAnimatedType
[WebKit-https.git] / Source / WebCore / svg / SVGAnimatedLength.cpp
1 /*
2  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
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19
20 #include "config.h"
21 #include "SVGAnimatedLength.h"
22
23 #include "SVGAnimateElementBase.h"
24 #include "SVGAnimatedNumber.h"
25 #include <wtf/NeverDestroyed.h>
26
27 namespace WebCore {
28
29 SVGAnimatedLengthAnimator::SVGAnimatedLengthAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
30     : SVGAnimatedTypeAnimator(AnimatedLength, animationElement, contextElement)
31     , m_lengthMode(SVGLength::lengthModeForAnimatedLengthAttribute(animationElement->attributeName()))
32 {
33 }
34
35 static inline SVGLength& sharedSVGLength(SVGLengthMode mode, const String& valueAsString)
36 {
37     static NeverDestroyed<SVGLength> sharedLength;
38     sharedLength.get().setValueAsString(valueAsString, mode, ASSERT_NO_EXCEPTION);
39     return sharedLength;
40 }
41
42 std::unique_ptr<SVGAnimatedType> SVGAnimatedLengthAnimator::constructFromString(const String& string)
43 {
44     return SVGAnimatedType::createLength(std::make_unique<SVGLength>(m_lengthMode, string));
45 }
46
47 std::unique_ptr<SVGAnimatedType> SVGAnimatedLengthAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
48 {
49     return SVGAnimatedType::createLength(constructFromBaseValue<SVGAnimatedLength>(animatedTypes));
50 }
51
52 void SVGAnimatedLengthAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
53 {
54     stopAnimValAnimationForType<SVGAnimatedLength>(animatedTypes);
55 }
56
57 void SVGAnimatedLengthAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType& type)
58 {
59     resetFromBaseValue<SVGAnimatedLength>(animatedTypes, type, &SVGAnimatedType::length);
60 }
61
62 void SVGAnimatedLengthAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes)
63 {
64     animValWillChangeForType<SVGAnimatedLength>(animatedTypes);
65 }
66
67 void SVGAnimatedLengthAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes)
68 {
69     animValDidChangeForType<SVGAnimatedLength>(animatedTypes);
70 }
71
72 void SVGAnimatedLengthAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
73 {
74     ASSERT(from->type() == AnimatedLength);
75     ASSERT(from->type() == to->type());
76
77     SVGLengthContext lengthContext(m_contextElement);
78     const SVGLength& fromLength = from->length();
79     SVGLength& toLength = to->length();
80
81     toLength.setValue(toLength.value(lengthContext) + fromLength.value(lengthContext), lengthContext, ASSERT_NO_EXCEPTION);
82 }
83
84 static SVGLength parseLengthFromString(SVGAnimationElement* animationElement, const String& string)
85 {
86     return sharedSVGLength(SVGLength::lengthModeForAnimatedLengthAttribute(animationElement->attributeName()), string);
87 }
88
89 void SVGAnimatedLengthAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated)
90 {
91     ASSERT(m_animationElement);
92     ASSERT(m_contextElement);
93
94     SVGLength fromSVGLength = m_animationElement->animationMode() == ToAnimation ? animated->length() : from->length();
95     SVGLength toSVGLength = to->length();
96     const SVGLength& toAtEndOfDurationSVGLength = toAtEndOfDuration->length();
97     SVGLength& animatedSVGLength = animated->length();
98
99     // Apply CSS inheritance rules.
100     m_animationElement->adjustForInheritance<SVGLength>(parseLengthFromString, m_animationElement->fromPropertyValueType(), fromSVGLength, m_contextElement);
101     m_animationElement->adjustForInheritance<SVGLength>(parseLengthFromString, m_animationElement->toPropertyValueType(), toSVGLength, m_contextElement);
102
103     SVGLengthContext lengthContext(m_contextElement);
104     float animatedNumber = animatedSVGLength.value(lengthContext);
105     SVGLengthType unitType = percentage < 0.5 ? fromSVGLength.unitType() : toSVGLength.unitType();
106     m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromSVGLength.value(lengthContext), toSVGLength.value(lengthContext), toAtEndOfDurationSVGLength.value(lengthContext), animatedNumber);
107
108     animatedSVGLength.setValue(lengthContext, animatedNumber, m_lengthMode, unitType, ASSERT_NO_EXCEPTION);
109 }
110
111 float SVGAnimatedLengthAnimator::calculateDistance(const String& fromString, const String& toString)
112 {
113     ASSERT(m_animationElement);
114     ASSERT(m_contextElement);
115     SVGLengthMode lengthMode = SVGLength::lengthModeForAnimatedLengthAttribute(m_animationElement->attributeName());
116     SVGLength from = SVGLength(lengthMode, fromString);
117     SVGLength to = SVGLength(lengthMode, toString);
118     SVGLengthContext lengthContext(m_contextElement);
119     return fabsf(to.value(lengthContext) - from.value(lengthContext));
120 }
121
122 }