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authorcrupest <crupest@outlook.com>2023-08-26 23:49:28 +0800
committercrupest <crupest@outlook.com>2023-08-26 23:49:28 +0800
commit256cc9592a3f31fc392e1ccdb699aa206b7b47ce (patch)
treefdca6f8b1cdbd5ed264a1af9e48496685f4e9a95 /FrontEnd/src/utilities/hooks/useScrollToBottom.ts
parentf5dfd52f6efece2f4cad227044ecf4dd66301bbc (diff)
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Diffstat (limited to 'FrontEnd/src/utilities/hooks/useScrollToBottom.ts')
-rw-r--r--FrontEnd/src/utilities/hooks/useScrollToBottom.ts45
1 files changed, 0 insertions, 45 deletions
diff --git a/FrontEnd/src/utilities/hooks/useScrollToBottom.ts b/FrontEnd/src/utilities/hooks/useScrollToBottom.ts
deleted file mode 100644
index 216746f4..00000000
--- a/FrontEnd/src/utilities/hooks/useScrollToBottom.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import { useRef, useEffect } from "react";
-import { fromEvent } from "rxjs";
-import { filter, throttleTime } from "rxjs/operators";
-
-function useScrollToBottom(
- handler: () => void,
- enable = true,
- option = {
- maxOffset: 5,
- throttle: 1000,
- }
-): void {
- const handlerRef = useRef<(() => void) | null>(null);
-
- useEffect(() => {
- handlerRef.current = handler;
-
- return () => {
- handlerRef.current = null;
- };
- }, [handler]);
-
- useEffect(() => {
- const subscription = fromEvent(window, "scroll")
- .pipe(
- filter(
- () =>
- window.scrollY >=
- document.body.scrollHeight - window.innerHeight - option.maxOffset
- ),
- throttleTime(option.throttle)
- )
- .subscribe(() => {
- if (enable) {
- handlerRef.current?.();
- }
- });
-
- return () => {
- subscription.unsubscribe();
- };
- }, [enable, option.maxOffset, option.throttle]);
-}
-
-export default useScrollToBottom;