Infinite scroll up/down parameterization

[digreamon]

I have came up with an idea of parameterization of the scrolling functionality.

1. add scrollMode to options. It should be set to one of the following:
   • "next" -- detect only downwards scrolling;
   • "prev" -- detect only upwards scrolling;
   • null -- detect both downwards and upwards scrolling;
2. change logic of the detectScrollDirection function:
   1. remove javascript this.didScroll = true; before the if-block;
   2. add javascript this.didScroll = this.options.scrollMode ? this.options.scrollMode === this.scrollDirection : true; after if-block;

This will set didScroll to false in case of unneeded scroll event

[clamoris]

+1

[dellert]

Is this functionality appears ?

[sherinjose]

This was an awesome functionality from you @digreamon . Well done :)