TimedItem.prototype _hasFutureEffect

[KevinDoughty]

Hello, I know this isn’t a diff, and the code might not be correct, but I am really looking forward to this one being completed. My stuff uses a lot of memory which otherwise does not get released. In TimedItem.prototype, something like this:

// Note that this restriction is currently incomplete - for example,
// Animations which are playing forwards and have a fill of backwards
// are not in effect unless current.
// TODO: Complete this restriction.
_hasFutureEffect: function() {
return this._isCurrent() || this.specified.fill === 'both' ||
(this.specified.fill === 'backwards' && !this._isCurrentDirectionForwards()) ||
(this.specified.fill === 'forwards' && this._isCurrentDirectionForwards());
},