void
Layer::SetAnimations(const AnimationArray& aAnimations)
{
mAnimations = aAnimations;
mAnimationData.Clear();
for (uint32_t i = 0; i < mAnimations.Length(); i++) {
AnimData* data = mAnimationData.AppendElement();
InfallibleTArray<nsAutoPtr<css::ComputedTimingFunction> >& functions = data->mFunctions;
nsTArray<AnimationSegment> segments = mAnimations.ElementAt(i).segments();
for (uint32_t j = 0; j < segments.Length(); j++) {
TimingFunction tf = segments.ElementAt(j).sampleFn();
css::ComputedTimingFunction* ctf = new css::ComputedTimingFunction();
switch (tf.type()) {
case TimingFunction::TCubicBezierFunction: {
CubicBezierFunction cbf = tf.get_CubicBezierFunction();
ctf->Init(nsTimingFunction(cbf.x1(), cbf.y1(), cbf.x2(), cbf.y2()));
break;
}
default: {
NS_ASSERTION(tf.type() == TimingFunction::TStepFunction,
"Function must be bezier or step");
StepFunction sf = tf.get_StepFunction();
nsTimingFunction::Type type = sf.type() == 1 ? nsTimingFunction::StepStart
: nsTimingFunction::StepEnd;
ctf->Init(nsTimingFunction(type, sf.steps()));
break;
}
}
functions.AppendElement(ctf);
}
// Precompute the nsStyleAnimation::Values that we need if this is a transform
// animation.
InfallibleTArray<nsStyleAnimation::Value>& startValues = data->mStartValues;
InfallibleTArray<nsStyleAnimation::Value>& endValues = data->mEndValues;
for (uint32_t j = 0; j < mAnimations[i].segments().Length(); j++) {
const AnimationSegment& segment = mAnimations[i].segments()[j];
nsStyleAnimation::Value* startValue = startValues.AppendElement();
nsStyleAnimation::Value* endValue = endValues.AppendElement();
if (segment.endState().type() == Animatable::TArrayOfTransformFunction) {
const InfallibleTArray<TransformFunction>& startFunctions =
segment.startState().get_ArrayOfTransformFunction();
startValue->SetAndAdoptCSSValueListValue(CreateCSSValueList(startFunctions),
nsStyleAnimation::eUnit_Transform);
const InfallibleTArray<TransformFunction>& endFunctions =
segment.endState().get_ArrayOfTransformFunction();
endValue->SetAndAdoptCSSValueListValue(CreateCSSValueList(endFunctions),
nsStyleAnimation::eUnit_Transform);
} else {
NS_ASSERTION(segment.endState().type() == Animatable::Tfloat,
"Unknown Animatable type");
startValue->SetFloatValue(segment.startState().get_float());
endValue->SetFloatValue(segment.endState().get_float());
}
}
}
Mutated();
}
/* static */
Maybe<ComputedTimingFunction>
AnimationUtils::TimingFunctionToComputedTimingFunction(
const TimingFunction& aTimingFunction) {
switch (aTimingFunction.type()) {
case TimingFunction::Tnull_t:
return Nothing();
case TimingFunction::TCubicBezierFunction: {
CubicBezierFunction cbf = aTimingFunction.get_CubicBezierFunction();
return Some(ComputedTimingFunction::CubicBezier(cbf.x1(), cbf.y1(),
cbf.x2(), cbf.y2()));
}
case TimingFunction::TStepFunction: {
StepFunction sf = aTimingFunction.get_StepFunction();
StyleStepPosition pos = static_cast<StyleStepPosition>(sf.type());
return Some(ComputedTimingFunction::Steps(sf.steps(), pos));
}
default:
MOZ_ASSERT_UNREACHABLE("Function must be null, bezier, step or frames");
break;
}
return Nothing();
}