| // @flow | |
| export const fetchMoreOnInfiniteScrollLoad = ( | |
| scrollElement: any, | |
| infiniteScrollerClass: string | |
| ): boolean => { | |
| if (!scrollElement) return false; | |
| if (!window) return false; | |
| if (!infiniteScrollerClass) return false; | |
| let infiniteScroller = null; | |
| const nodes = document.getElementsByClassName(infiniteScrollerClass); | |
| if (!nodes || nodes.length === 0) return false; | |
| infiniteScroller = nodes[0]; | |
| const windowHeight = window.innerHeight; | |
| const scrollContainerHeight = scrollElement.clientHeight; | |
| const infiniteScrollHeight = infiniteScroller.clientHeight; | |
| if ( | |
| infiniteScrollHeight > windowHeight || | |
| infiniteScrollHeight > scrollContainerHeight | |
| ) { | |
| return false; | |
| } | |
| if (scrollContainerHeight > infiniteScrollHeight) { | |
| return true; | |
| } | |
| return false; | |
| }; | |