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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | <script lang="ts"> import { getRootObserver, type RootObserver } from "./observe"; import { setContext } from "svelte"; import key from "./key"; import { browser } from "$app/environment"; type RootOption = Element | undefined; export let root: RootOption | Promise<RootOption> = undefined; export let rootMargin: string | undefined = undefined; export let enabled = true; const getRootObserverPromise = async (): Promise<RootObserver | undefined> => { if (!browser) return undefined; if (!root) return getRootObserver({ rootMargin }); if (root instanceof Element) return getRootObserver({ root, rootMargin }); if (root instanceof Promise) return getRootObserver({ root: await root, rootMargin }); }; if (enabled && browser) { setContext<Promise<RootObserver | undefined>>(key, getRootObserverPromise()); } </script> <slot /> |