From c81dfffe0076c94dc61397fd17677cb24f67cdf2 Mon Sep 17 00:00:00 2001 From: crupest Date: Sun, 24 Apr 2022 19:56:15 +0800 Subject: ... --- FrontEnd/src/utilities/hooks.ts | 11 +++++ FrontEnd/src/utilities/hooks/mediaQuery.ts | 5 ++ FrontEnd/src/utilities/hooks/useClickOutside.ts | 38 +++++++++++++++ .../hooks/useReverseScrollPositionRemember.ts | 56 ++++++++++++++++++++++ FrontEnd/src/utilities/hooks/useScrollToTop.ts | 43 +++++++++++++++++ FrontEnd/src/utilities/mediaQuery.ts | 5 -- FrontEnd/src/utilities/useClickOutside.ts | 38 --------------- .../utilities/useReverseScrollPositionRemember.ts | 56 ---------------------- FrontEnd/src/utilities/useScrollToTop.ts | 43 ----------------- 9 files changed, 153 insertions(+), 142 deletions(-) create mode 100644 FrontEnd/src/utilities/hooks.ts create mode 100644 FrontEnd/src/utilities/hooks/mediaQuery.ts create mode 100644 FrontEnd/src/utilities/hooks/useClickOutside.ts create mode 100644 FrontEnd/src/utilities/hooks/useReverseScrollPositionRemember.ts create mode 100644 FrontEnd/src/utilities/hooks/useScrollToTop.ts delete mode 100644 FrontEnd/src/utilities/mediaQuery.ts delete mode 100644 FrontEnd/src/utilities/useClickOutside.ts delete mode 100644 FrontEnd/src/utilities/useReverseScrollPositionRemember.ts delete mode 100644 FrontEnd/src/utilities/useScrollToTop.ts (limited to 'FrontEnd/src/utilities') diff --git a/FrontEnd/src/utilities/hooks.ts b/FrontEnd/src/utilities/hooks.ts new file mode 100644 index 00000000..c499b36b --- /dev/null +++ b/FrontEnd/src/utilities/hooks.ts @@ -0,0 +1,11 @@ +import useClickOutside from "./hooks/useClickOutside"; +import useReverseScrollPositionRemember from "./hooks/useReverseScrollPositionRemember"; +import useScrollToTop from "./hooks/useScrollToTop"; +import { useIsSmallScreen } from "./hooks/mediaQuery"; + +export { + useClickOutside, + useReverseScrollPositionRemember, + useScrollToTop, + useIsSmallScreen, +}; diff --git a/FrontEnd/src/utilities/hooks/mediaQuery.ts b/FrontEnd/src/utilities/hooks/mediaQuery.ts new file mode 100644 index 00000000..ad55c3c0 --- /dev/null +++ b/FrontEnd/src/utilities/hooks/mediaQuery.ts @@ -0,0 +1,5 @@ +import { useMediaQuery } from "react-responsive"; + +export function useIsSmallScreen(): boolean { + return useMediaQuery({ maxWidth: 576 }); +} diff --git a/FrontEnd/src/utilities/hooks/useClickOutside.ts b/FrontEnd/src/utilities/hooks/useClickOutside.ts new file mode 100644 index 00000000..4b2f0e5c --- /dev/null +++ b/FrontEnd/src/utilities/hooks/useClickOutside.ts @@ -0,0 +1,38 @@ +import React from "react"; + +export default function useClickOutside( + element: HTMLElement | null | undefined, + onClickOutside: () => void, + nextTick?: boolean +): void { + const onClickOutsideRef = React.useRef<() => void>(onClickOutside); + + React.useEffect(() => { + onClickOutsideRef.current = onClickOutside; + }, [onClickOutside]); + + React.useEffect(() => { + if (element != null) { + const handler = (event: MouseEvent): void => { + let e: HTMLElement | null = event.target as HTMLElement; + while (e) { + if (e == element) { + return; + } + e = e.parentElement; + } + onClickOutsideRef.current(); + }; + if (nextTick) { + setTimeout(() => { + document.addEventListener("click", handler); + }); + } else { + document.addEventListener("click", handler); + } + return () => { + document.removeEventListener("click", handler); + }; + } + }, [element, nextTick]); +} diff --git a/FrontEnd/src/utilities/hooks/useReverseScrollPositionRemember.ts b/FrontEnd/src/utilities/hooks/useReverseScrollPositionRemember.ts new file mode 100644 index 00000000..6fdd4b43 --- /dev/null +++ b/FrontEnd/src/utilities/hooks/useReverseScrollPositionRemember.ts @@ -0,0 +1,56 @@ +import React from "react"; + +let on = false; + +let rememberedReversePosition = getReverseScrollPosition(); + +export function getReverseScrollPosition(): number { + if (document.documentElement.scrollHeight <= window.innerHeight) { + return 0; + } else { + return ( + document.documentElement.scrollHeight - + document.documentElement.scrollTop - + window.innerHeight + ); + } +} + +export function scrollToReverseScrollPosition(reversePosition: number): void { + if (document.documentElement.scrollHeight <= window.innerHeight) return; + + const old = document.documentElement.style.scrollBehavior; + document.documentElement.style.scrollBehavior = "auto"; + + const newPosition = + document.documentElement.scrollHeight - + window.innerHeight - + reversePosition; + + window.scrollTo(0, newPosition); + + document.documentElement.style.scrollBehavior = old; +} + +const scrollListener = (): void => { + rememberedReversePosition = getReverseScrollPosition(); +}; + +const resizeObserver = new ResizeObserver(() => { + scrollToReverseScrollPosition(rememberedReversePosition); +}); + +export default function useReverseScrollPositionRemember(): void { + React.useEffect(() => { + if (on) return; + on = true; + window.addEventListener("scroll", scrollListener); + resizeObserver.observe(document.documentElement); + + return () => { + resizeObserver.disconnect(); + window.removeEventListener("scroll", scrollListener); + on = false; + }; + }, []); +} diff --git a/FrontEnd/src/utilities/hooks/useScrollToTop.ts b/FrontEnd/src/utilities/hooks/useScrollToTop.ts new file mode 100644 index 00000000..95c8b7b9 --- /dev/null +++ b/FrontEnd/src/utilities/hooks/useScrollToTop.ts @@ -0,0 +1,43 @@ +import React from "react"; +import { fromEvent } from "rxjs"; +import { filter, throttleTime } from "rxjs/operators"; + +function useScrollToTop( + handler: () => void, + enable = true, + option = { + maxOffset: 5, + throttle: 1000, + } +): void { + const handlerRef = React.useRef<(() => void) | null>(null); + + React.useEffect(() => { + handlerRef.current = handler; + + return () => { + handlerRef.current = null; + }; + }, [handler]); + + React.useEffect(() => { + const subscription = fromEvent(window, "scroll") + .pipe( + filter(() => { + return window.scrollY <= option.maxOffset; + }), + throttleTime(option.throttle) + ) + .subscribe(() => { + if (enable) { + handlerRef.current?.(); + } + }); + + return () => { + subscription.unsubscribe(); + }; + }, [enable, option.maxOffset, option.throttle]); +} + +export default useScrollToTop; diff --git a/FrontEnd/src/utilities/mediaQuery.ts b/FrontEnd/src/utilities/mediaQuery.ts deleted file mode 100644 index ad55c3c0..00000000 --- a/FrontEnd/src/utilities/mediaQuery.ts +++ /dev/null @@ -1,5 +0,0 @@ -import { useMediaQuery } from "react-responsive"; - -export function useIsSmallScreen(): boolean { - return useMediaQuery({ maxWidth: 576 }); -} diff --git a/FrontEnd/src/utilities/useClickOutside.ts b/FrontEnd/src/utilities/useClickOutside.ts deleted file mode 100644 index 4b2f0e5c..00000000 --- a/FrontEnd/src/utilities/useClickOutside.ts +++ /dev/null @@ -1,38 +0,0 @@ -import React from "react"; - -export default function useClickOutside( - element: HTMLElement | null | undefined, - onClickOutside: () => void, - nextTick?: boolean -): void { - const onClickOutsideRef = React.useRef<() => void>(onClickOutside); - - React.useEffect(() => { - onClickOutsideRef.current = onClickOutside; - }, [onClickOutside]); - - React.useEffect(() => { - if (element != null) { - const handler = (event: MouseEvent): void => { - let e: HTMLElement | null = event.target as HTMLElement; - while (e) { - if (e == element) { - return; - } - e = e.parentElement; - } - onClickOutsideRef.current(); - }; - if (nextTick) { - setTimeout(() => { - document.addEventListener("click", handler); - }); - } else { - document.addEventListener("click", handler); - } - return () => { - document.removeEventListener("click", handler); - }; - } - }, [element, nextTick]); -} diff --git a/FrontEnd/src/utilities/useReverseScrollPositionRemember.ts b/FrontEnd/src/utilities/useReverseScrollPositionRemember.ts deleted file mode 100644 index 6fdd4b43..00000000 --- a/FrontEnd/src/utilities/useReverseScrollPositionRemember.ts +++ /dev/null @@ -1,56 +0,0 @@ -import React from "react"; - -let on = false; - -let rememberedReversePosition = getReverseScrollPosition(); - -export function getReverseScrollPosition(): number { - if (document.documentElement.scrollHeight <= window.innerHeight) { - return 0; - } else { - return ( - document.documentElement.scrollHeight - - document.documentElement.scrollTop - - window.innerHeight - ); - } -} - -export function scrollToReverseScrollPosition(reversePosition: number): void { - if (document.documentElement.scrollHeight <= window.innerHeight) return; - - const old = document.documentElement.style.scrollBehavior; - document.documentElement.style.scrollBehavior = "auto"; - - const newPosition = - document.documentElement.scrollHeight - - window.innerHeight - - reversePosition; - - window.scrollTo(0, newPosition); - - document.documentElement.style.scrollBehavior = old; -} - -const scrollListener = (): void => { - rememberedReversePosition = getReverseScrollPosition(); -}; - -const resizeObserver = new ResizeObserver(() => { - scrollToReverseScrollPosition(rememberedReversePosition); -}); - -export default function useReverseScrollPositionRemember(): void { - React.useEffect(() => { - if (on) return; - on = true; - window.addEventListener("scroll", scrollListener); - resizeObserver.observe(document.documentElement); - - return () => { - resizeObserver.disconnect(); - window.removeEventListener("scroll", scrollListener); - on = false; - }; - }, []); -} diff --git a/FrontEnd/src/utilities/useScrollToTop.ts b/FrontEnd/src/utilities/useScrollToTop.ts deleted file mode 100644 index 95c8b7b9..00000000 --- a/FrontEnd/src/utilities/useScrollToTop.ts +++ /dev/null @@ -1,43 +0,0 @@ -import React from "react"; -import { fromEvent } from "rxjs"; -import { filter, throttleTime } from "rxjs/operators"; - -function useScrollToTop( - handler: () => void, - enable = true, - option = { - maxOffset: 5, - throttle: 1000, - } -): void { - const handlerRef = React.useRef<(() => void) | null>(null); - - React.useEffect(() => { - handlerRef.current = handler; - - return () => { - handlerRef.current = null; - }; - }, [handler]); - - React.useEffect(() => { - const subscription = fromEvent(window, "scroll") - .pipe( - filter(() => { - return window.scrollY <= option.maxOffset; - }), - throttleTime(option.throttle) - ) - .subscribe(() => { - if (enable) { - handlerRef.current?.(); - } - }); - - return () => { - subscription.unsubscribe(); - }; - }, [enable, option.maxOffset, option.throttle]); -} - -export default useScrollToTop; -- cgit v1.2.3