/* static */ Maybe<ComputedTimingFunction>
TimingParams::ParseEasing(const nsAString& aEasing,
nsIDocument* aDocument,
ErrorResult& aRv)
{
MOZ_ASSERT(aDocument);
nsCSSValue value;
nsCSSParser parser;
parser.ParseLonghandProperty(eCSSProperty_animation_timing_function,
aEasing,
aDocument->GetDocumentURI(),
aDocument->GetDocumentURI(),
aDocument->NodePrincipal(),
value);
switch (value.GetUnit()) {
case eCSSUnit_List: {
const nsCSSValueList* list = value.GetListValue();
if (list->mNext) {
// don't support a list of timing functions
break;
}
switch (list->mValue.GetUnit()) {
case eCSSUnit_Enumerated:
// Return Nothing() if "linear" is passed in.
if (list->mValue.GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_LINEAR) {
return Nothing();
}
MOZ_FALLTHROUGH;
case eCSSUnit_Cubic_Bezier:
case eCSSUnit_Steps: {
nsTimingFunction timingFunction;
nsRuleNode::ComputeTimingFunction(list->mValue, timingFunction);
ComputedTimingFunction computedTimingFunction;
computedTimingFunction.Init(timingFunction);
return Some(computedTimingFunction);
}
default:
MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function list "
"item unit");
break;
}
break;
}
case eCSSUnit_Inherit:
case eCSSUnit_Initial:
case eCSSUnit_Unset:
case eCSSUnit_TokenStream:
case eCSSUnit_Null:
break;
default:
MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function unit");
break;
}
aRv.ThrowTypeError<dom::MSG_INVALID_EASING_ERROR>(aEasing);
return Nothing();
}
/* static */ Maybe<ComputedTimingFunction>
AnimationUtils::ParseEasing(const dom::Element* aTarget,
const nsAString& aEasing)
{
if (!aTarget) {
return Nothing();
}
nsIDocument* doc = aTarget->OwnerDoc();
nsCSSValue value;
nsCSSParser parser;
parser.ParseLonghandProperty(eCSSProperty_animation_timing_function,
aEasing,
doc->GetDocumentURI(),
doc->GetDocumentURI(),
doc->NodePrincipal(),
value);
switch (value.GetUnit()) {
case eCSSUnit_List: {
const nsCSSValueList* list = value.GetListValue();
if (list->mNext) {
// don't support a list of timing functions
break;
}
switch (list->mValue.GetUnit()) {
case eCSSUnit_Enumerated:
// Return Nothing() if "linear" is passed in.
if (list->mValue.GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_LINEAR) {
return Nothing();
}
// Fall through
case eCSSUnit_Cubic_Bezier:
case eCSSUnit_Steps: {
nsTimingFunction timingFunction;
nsRuleNode::ComputeTimingFunction(list->mValue, timingFunction);
ComputedTimingFunction computedTimingFunction;
computedTimingFunction.Init(timingFunction);
return Some(computedTimingFunction);
}
default:
MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function list "
"item unit");
break;
}
break;
}
case eCSSUnit_Null:
case eCSSUnit_Inherit:
case eCSSUnit_Initial:
case eCSSUnit_Unset:
case eCSSUnit_TokenStream:
break;
default:
MOZ_ASSERT_UNREACHABLE("unexpected animation-timing-function unit");
break;
}
return Nothing();
}
