void
nsSMILAnimationFunction::UnsetKeyTimes()
{
mKeyTimes.Clear();
SetKeyTimesErrorFlag(PR_FALSE);
mHasChanged = PR_TRUE;
}
void
nsSMILAnimationFunction::UnsetKeyTimes()
{
mKeyTimes.Clear();
SetKeyTimesErrorFlag(false);
mHasChanged = true;
}
/**
* Performs checks for the keyTimes attribute required by the SMIL spec but
* which depend on other attributes and therefore needs to be updated as
* dependent attributes are set.
*/
void
nsSMILAnimationFunction::CheckKeyTimes(PRUint32 aNumValues)
{
if (!HasAttr(nsGkAtoms::keyTimes))
return;
// attribute is ignored for calcMode = paced
if (GetCalcMode() == CALC_PACED) {
SetKeyTimesErrorFlag(PR_FALSE);
return;
}
if (mKeyTimes.Length() < 1) {
// keyTimes isn't set or failed preliminary checks
SetKeyTimesErrorFlag(PR_TRUE);
return;
}
// no. keyTimes == no. values
if ((mKeyTimes.Length() != aNumValues && !IsToAnimation()) ||
(IsToAnimation() && mKeyTimes.Length() != 2)) {
SetKeyTimesErrorFlag(PR_TRUE);
return;
}
// special handling if there is only one keyTime. The spec doesn't say what to
// do in this case so we allow the keyTime to be either 0 or 1.
if (mKeyTimes.Length() == 1) {
double time = mKeyTimes[0];
SetKeyTimesErrorFlag(!(time == 0.0 || time == 1.0));
return;
}
// According to the spec, the first value should be 0 and for linear or spline
// calcMode's the last value should be 1, but then an example is give with
// a spline calcMode and keyTimes "0.0; 0.7". So we don't bother checking
// the end-values here but just allow bad specs.
SetKeyTimesErrorFlag(PR_FALSE);
}
/**
* Performs checks for the keyTimes attribute required by the SMIL spec but
* which depend on other attributes and therefore needs to be updated as
* dependent attributes are set.
*/
void
nsSMILAnimationFunction::CheckKeyTimes(uint32_t aNumValues)
{
if (!HasAttr(nsGkAtoms::keyTimes))
return;
nsSMILCalcMode calcMode = GetCalcMode();
// attribute is ignored for calcMode = paced
if (calcMode == CALC_PACED) {
SetKeyTimesErrorFlag(false);
return;
}
uint32_t numKeyTimes = mKeyTimes.Length();
if (numKeyTimes < 1) {
// keyTimes isn't set or failed preliminary checks
SetKeyTimesErrorFlag(true);
return;
}
// no. keyTimes == no. values
// For to-animation the number of values is considered to be 2.
bool matchingNumOfValues =
numKeyTimes == (IsToAnimation() ? 2 : aNumValues);
if (!matchingNumOfValues) {
SetKeyTimesErrorFlag(true);
return;
}
// first value must be 0
if (mKeyTimes[0] != 0.0) {
SetKeyTimesErrorFlag(true);
return;
}
// last value must be 1 for linear or spline calcModes
if (calcMode != CALC_DISCRETE && numKeyTimes > 1 &&
mKeyTimes[numKeyTimes - 1] != 1.0) {
SetKeyTimesErrorFlag(true);
return;
}
SetKeyTimesErrorFlag(false);
}