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getParent method?

swampthang test
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Go to solution Solved by GreenSock,

Warning: Please note

This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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I know there's a getChildren() method for TimelineMax but I have a situation where I need to check to see if a child timeline has been added to a parent timeline. Would be great if I could do something like getParent() and then check against what I know to be the master timeline - as opposed to getting the children of a master timeline and having to look through it to see if the child is there.


I know that every timeline created is added to a global timeline until it gets added to a specific parent timeline so the .timeline property is never empty. 


Would like to do something like:

var tw,
    tl = new TimelineMax(),
    masterTL = new TimelineMax();

function doTween() {
  resetTween(tw); // reset tween function
  tw = TweenMax.to(element, 1, {x: 0, y:0});
  var master = tl.getParent(); // THIS IS WHAT I'D LOVE TO SEE!
  if(!master == masterTL) {

Is there a cleaner, better way to accomplish this?



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btw, this is how I'm handling it in my app for now and it seems to work fine but not sure how reliable this is.

var kids = masterTL.getChildren(false); // just get top-level timelines that are in the masterTL

if(kids.length == 0) {
} else {
  var isThere = false;
  for ( kid in kids ) {
    if(kid == tl) {
      isThere = true;
  if(!isThere) {
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Since getChildren() returns an array you can do a simple indexOf() in order to check if the instance is in the parent timeline already:

var master = new TimelineMax({paused:true}),
    child1 = new TimelineMax({paused:true}),
    child2 = new TimelineMax({paused:true}),
    child3 = new TimelineMax({paused:true}),

  .add(child1, 1)
  .add(child2, 2);

// get childs
children = master.getChildren();

console.log( children.indexOf(child1) );// return 0
console.log( children.indexOf(child2) );// return 1
console.log( children.indexOf(child3) );// return -1 doesn't exists in the array


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  • Solution

I might be missing something, but wouldn't it be as easy as tl.timeline? Remember, every animation has a parent "timeline" (well, except the root timelines) and you can access that via the "timeline" property (that's read-only). 


So in your pseudo code, it would look like: 

var master = tl.getParent(); //BAD
if (!master == masterTL) {

var master = tl.timeline; //GOOD
if (!master == masterTL) {
  • Like 3
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