infinite-scrolling.r8l2n52tsk.js

js rosalindfranklin.edu collected 2026-10-01 10:32:32 UTC 917 bytes, 42 lines download raw bytes

1ï»¿export function initialize(lastIndicator, instance) {
2  const options = {
3    root: findClosestScrollContainer(lastIndicator),
4    rootMargin: "0px",
5    threshold: 0
6  }
7
8  const observer = new IntersectionObserver(async entries => {
9    for (const entry of entries) {
10      if (entry.isIntersecting) {
11        await instance.invokeMethodAsync("LoadMoreItems")
12      }
13    }
14  }, options)
15
16  observer.observe(lastIndicator)
17
18  return {
19    dispose: () => infiniteScollingDispose(observer),
20    onNewItems: () => {
21      observer.unobserve(lastIndicator)
22      observer.observe(lastIndicator)
23    }
24  }
25}
26
27function findClosestScrollContainer(element) {
28  while (element) {
29    const style = getComputedStyle(element)
30    if (style.overflowY !== "visible") {
31      return element
32    }
33
34    element = element.parentElement
35  }
36
37  return null
38}
39
40function infiniteScollingDispose(observer) {
41  observer.disconnect()
42}

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