bool LessThan(SimpleTextTrackEvent* aOne, SimpleTextTrackEvent* aTwo) const
{
if (aOne->mTime < aTwo->mTime) {
return true;
} else if (aOne->mTime > aTwo->mTime) {
return false;
}
int32_t positionOne = TrackChildPosition(aOne);
int32_t positionTwo = TrackChildPosition(aTwo);
if (positionOne < positionTwo) {
return true;
} else if (positionOne > positionTwo) {
return false;
}
if (aOne->mName.EqualsLiteral("enter") ||
aTwo->mName.EqualsLiteral("exit")) {
return true;
}
return false;
}
bool CompareTextTracks::LessThan(TextTrack* aOne, TextTrack* aTwo) const {
// Protect against nullptr TextTrack objects; treat them as
// sorting toward the end.
if (!aOne) {
return false;
}
if (!aTwo) {
return true;
}
TextTrackSource sourceOne = aOne->GetTextTrackSource();
TextTrackSource sourceTwo = aTwo->GetTextTrackSource();
if (sourceOne != sourceTwo) {
return sourceOne == TextTrackSource::Track ||
(sourceOne == AddTextTrack && sourceTwo == MediaResourceSpecific);
}
switch (sourceOne) {
case Track: {
int32_t positionOne = TrackChildPosition(aOne);
int32_t positionTwo = TrackChildPosition(aTwo);
// If either position one or positiontwo are -1 then something has gone
// wrong. In this case we should just put them at the back of the list.
return positionOne != -1 && positionTwo != -1 &&
positionOne < positionTwo;
}
case AddTextTrack:
// For AddTextTrack sources the tracks will already be in the correct
// relative order in the source array. Assume we're called in iteration
// order and can therefore always report aOne < aTwo to maintain the
// original temporal ordering.
return true;
case MediaResourceSpecific:
// No rules for Media Resource Specific tracks yet.
break;
}
return true;
}
