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32 #include "core/animation/AnimatableImage.h"
34 #include "core/css/CSSImageValue.h"
35 #include "core/rendering/style/StyleGeneratedImage.h"
36 #include "wtf/MathExtras.h"
40 // FIXME: Once cross-fade works on generated image types, remove this method.
41 bool AnimatableImage::usesDefaultInterpolationWith(const AnimatableValue* value) const
43 RefPtr<CSSValue> fromValue = toCSSValue();
44 if (fromValue->isImageGeneratorValue())
46 if (!fromValue->isImageValue() && !m_image->isImageResource())
48 const AnimatableImage* image = toAnimatableImage(value);
49 RefPtr<CSSValue> toValue = image->toCSSValue();
50 if (toValue->isImageGeneratorValue())
52 if (!toValue->isImageValue() && !image->m_image->isImageResource())
57 PassRefPtr<AnimatableValue> AnimatableImage::interpolateTo(const AnimatableValue* value, double fraction) const
59 if (fraction <= 0 || fraction >= 1)
60 return defaultInterpolateTo(this, value, fraction);
61 RefPtr<CSSValue> fromValue = toCSSValue();
62 // FIXME: Once cross-fade works on generated image types, remove this check.
63 if (fromValue->isImageGeneratorValue())
64 return defaultInterpolateTo(this, value, fraction);
65 if (!fromValue->isImageValue() && !fromValue->isImageGeneratorValue()) {
66 if (!m_image->isImageResource())
67 return defaultInterpolateTo(this, value, fraction);
68 ImageResource* resource = static_cast<ImageResource*>(m_image->data());
69 fromValue = CSSImageValue::create(resource->url(), m_image.get());
71 const AnimatableImage* image = toAnimatableImage(value);
72 RefPtr<CSSValue> toValue = image->toCSSValue();
73 // FIXME: Once cross-fade works on generated image types, remove this check.
74 if (toValue->isImageGeneratorValue())
75 return defaultInterpolateTo(this, value, fraction);
76 if (!toValue->isImageValue() && !toValue->isImageGeneratorValue()) {
77 if (!image->m_image->isImageResource())
78 return defaultInterpolateTo(this, value, fraction);
79 ImageResource* resource = static_cast<ImageResource*>(image->m_image->data());
80 toValue = CSSImageValue::create(resource->url(), image->m_image.get());
82 RefPtr<CSSCrossfadeValue> crossfadeValue = CSSCrossfadeValue::create(fromValue, toValue);
83 crossfadeValue->setPercentage(CSSPrimitiveValue::create(fraction, CSSPrimitiveValue::CSS_NUMBER));
84 return create(StyleGeneratedImage::create(crossfadeValue.get()).get());
87 PassRefPtr<AnimatableValue> AnimatableImage::addWith(const AnimatableValue* value) const
89 // FIXME: Correct procedure is defined here: http://dev.w3.org/fxtf/web-animations/#the--image--type
90 return defaultAddWith(this, value);
93 bool AnimatableImage::equalTo(const AnimatableValue* value) const
95 return StyleImage::imagesEquivalent(m_image.get(), toAnimatableImage(value)->m_image.get());