How can set an indeterminant progress bar ?

I have a progress bar setup like this
$$("data").showProgress({ type:"bottom", delay:3000, hide:false });
Is there any way I can show a in definite progress bar because I don’t know when the data is going to return? Any sort of progress bar which keeps showing progress until I decide to hide it.

Here’s a sample with possible implementations of the progress bar:

https://webix.com/snippet/a41a89af

You can control the speed or stop the progress at certain position (“Chunked” mode, one click == 1/5 of progress)

Thank you. But what I needed is progress bar which don’t have any termination see here
http://materializecss.com/preloader.html
the Indeterminate heading.

Unfortunately, all actual features are shown in the above snippet.
We will add this type of progress bar to our roadmap - most probably, it will be released in Webix 5.2+

can we keep progress bar inside element
https://snippet.webix.com/zfhxz8n8 I wantt to keep inside box