diff options
-rw-r--r-- | FrontEnd/package-lock.json | 235 | ||||
-rw-r--r-- | FrontEnd/package.json | 2 | ||||
-rw-r--r-- | FrontEnd/src/app/utilities/useReverseScrollPositionRemember.ts | 62 | ||||
-rw-r--r-- | FrontEnd/src/app/views/timeline-common/TimelinePagedPostListView.tsx | 35 |
4 files changed, 109 insertions, 225 deletions
diff --git a/FrontEnd/package-lock.json b/FrontEnd/package-lock.json index 977a0c8e..d285d6b8 100644 --- a/FrontEnd/package-lock.json +++ b/FrontEnd/package-lock.json @@ -61,7 +61,7 @@ "@types/remarkable": "^2.0.1", "@types/webpack-env": "^1.16.0", "@types/xregexp": "^4.3.0", - "@typescript-eslint/eslint-plugin": "^4.22.0", + "@typescript-eslint/eslint-plugin": "^4.22.1", "@typescript-eslint/parser": "^4.22.1", "@yarnpkg/pnpify": "^2.4.0", "babel-loader": "^8.2.2", @@ -2282,13 +2282,13 @@ "dev": true }, "node_modules/@typescript-eslint/eslint-plugin": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.22.0.tgz", - "integrity": "sha512-U8SP9VOs275iDXaL08Ln1Fa/wLXfj5aTr/1c0t0j6CdbOnxh+TruXu1p4I0NAvdPBQgoPjHsgKn28mOi0FzfoA==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.22.1.tgz", + "integrity": "sha512-kVTAghWDDhsvQ602tHBc6WmQkdaYbkcTwZu+7l24jtJiYvm9l+/y/b2BZANEezxPDiX5MK2ZecE+9BFi/YJryw==", "dev": true, "dependencies": { - "@typescript-eslint/experimental-utils": "4.22.0", - "@typescript-eslint/scope-manager": "4.22.0", + "@typescript-eslint/experimental-utils": "4.22.1", + "@typescript-eslint/scope-manager": "4.22.1", "debug": "^4.1.1", "functional-red-black-tree": "^1.0.1", "lodash": "^4.17.15", @@ -2329,15 +2329,15 @@ } }, "node_modules/@typescript-eslint/experimental-utils": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-4.22.0.tgz", - "integrity": "sha512-xJXHHl6TuAxB5AWiVrGhvbGL8/hbiCQ8FiWwObO3r0fnvBdrbWEDy1hlvGQOAWc6qsCWuWMKdVWlLAEMpxnddg==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-4.22.1.tgz", + "integrity": "sha512-svYlHecSMCQGDO2qN1v477ax/IDQwWhc7PRBiwAdAMJE7GXk5stF4Z9R/8wbRkuX/5e9dHqbIWxjeOjckK3wLQ==", "dev": true, "dependencies": { "@types/json-schema": "^7.0.3", - "@typescript-eslint/scope-manager": "4.22.0", - "@typescript-eslint/types": "4.22.0", - "@typescript-eslint/typescript-estree": "4.22.0", + "@typescript-eslint/scope-manager": "4.22.1", + "@typescript-eslint/types": "4.22.1", + "@typescript-eslint/typescript-estree": "4.22.1", "eslint-scope": "^5.0.0", "eslint-utils": "^2.0.0" }, @@ -2379,7 +2379,7 @@ } } }, - "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/scope-manager": { + "node_modules/@typescript-eslint/scope-manager": { "version": "4.22.1", "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.22.1.tgz", "integrity": "sha512-d5bAiPBiessSmNi8Amq/RuLslvcumxLmyhf1/Xa9IuaoFJ0YtshlJKxhlbY7l2JdEk3wS0EnmnfeJWSvADOe0g==", @@ -2396,7 +2396,7 @@ "url": "https://opencollective.com/typescript-eslint" } }, - "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/types": { + "node_modules/@typescript-eslint/types": { "version": "4.22.1", "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.22.1.tgz", "integrity": "sha512-2HTkbkdAeI3OOcWbqA8hWf/7z9c6gkmnWNGz0dKSLYLWywUlkOAQ2XcjhlKLj5xBFDf8FgAOF5aQbnLRvgNbCw==", @@ -2409,7 +2409,7 @@ "url": "https://opencollective.com/typescript-eslint" } }, - "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/typescript-estree": { + "node_modules/@typescript-eslint/typescript-estree": { "version": "4.22.1", "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.22.1.tgz", "integrity": "sha512-p3We0pAPacT+onSGM+sPR+M9CblVqdA9F1JEdIqRVlxK5Qth4ochXQgIyb9daBomyQKAXbygxp1aXQRV0GC79A==", @@ -2436,95 +2436,6 @@ } } }, - "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/visitor-keys": { - "version": "4.22.1", - "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.1.tgz", - "integrity": "sha512-WPkOrIRm+WCLZxXQHCi+WG8T2MMTUFR70rWjdWYddLT7cEfb2P4a3O/J2U1FBVsSFTocXLCoXWY6MZGejeStvQ==", - "dev": true, - "dependencies": { - "@typescript-eslint/types": "4.22.1", - "eslint-visitor-keys": "^2.0.0" - }, - "engines": { - "node": "^8.10.0 || ^10.13.0 || >=11.10.1" - }, - "funding": { - "type": "opencollective", - "url": "https://opencollective.com/typescript-eslint" - } - }, - "node_modules/@typescript-eslint/parser/node_modules/semver": { - "version": "7.3.5", - "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz", - "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==", - "dev": true, - "dependencies": { - "lru-cache": "^6.0.0" - }, - "bin": { - "semver": "bin/semver.js" - }, - "engines": { - "node": ">=10" - } - }, - "node_modules/@typescript-eslint/scope-manager": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.22.0.tgz", - "integrity": "sha512-OcCO7LTdk6ukawUM40wo61WdeoA7NM/zaoq1/2cs13M7GyiF+T4rxuA4xM+6LeHWjWbss7hkGXjFDRcKD4O04Q==", - "dev": true, - "dependencies": { - "@typescript-eslint/types": "4.22.0", - "@typescript-eslint/visitor-keys": "4.22.0" - }, - "engines": { - "node": "^8.10.0 || ^10.13.0 || >=11.10.1" - }, - "funding": { - "type": "opencollective", - "url": "https://opencollective.com/typescript-eslint" - } - }, - "node_modules/@typescript-eslint/types": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.22.0.tgz", - "integrity": "sha512-sW/BiXmmyMqDPO2kpOhSy2Py5w6KvRRsKZnV0c4+0nr4GIcedJwXAq+RHNK4lLVEZAJYFltnnk1tJSlbeS9lYA==", - "dev": true, - "engines": { - "node": "^8.10.0 || ^10.13.0 || >=11.10.1" - }, - "funding": { - "type": "opencollective", - "url": "https://opencollective.com/typescript-eslint" - } - }, - "node_modules/@typescript-eslint/typescript-estree": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.22.0.tgz", - "integrity": "sha512-TkIFeu5JEeSs5ze/4NID+PIcVjgoU3cUQUIZnH3Sb1cEn1lBo7StSV5bwPuJQuoxKXlzAObjYTilOEKRuhR5yg==", - "dev": true, - "dependencies": { - "@typescript-eslint/types": "4.22.0", - "@typescript-eslint/visitor-keys": "4.22.0", - "debug": "^4.1.1", - "globby": "^11.0.1", - "is-glob": "^4.0.1", - "semver": "^7.3.2", - "tsutils": "^3.17.1" - }, - "engines": { - "node": "^10.12.0 || >=12.0.0" - }, - "funding": { - "type": "opencollective", - "url": "https://opencollective.com/typescript-eslint" - }, - "peerDependenciesMeta": { - "typescript": { - "optional": true - } - } - }, "node_modules/@typescript-eslint/typescript-estree/node_modules/semver": { "version": "7.3.5", "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz", @@ -2541,12 +2452,12 @@ } }, "node_modules/@typescript-eslint/visitor-keys": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.0.tgz", - "integrity": "sha512-nnMu4F+s4o0sll6cBSsTeVsT4cwxB7zECK3dFxzEjPBii9xLpq4yqqsy/FU5zMfan6G60DKZSCXAa3sHJZrcYw==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.1.tgz", + "integrity": "sha512-WPkOrIRm+WCLZxXQHCi+WG8T2MMTUFR70rWjdWYddLT7cEfb2P4a3O/J2U1FBVsSFTocXLCoXWY6MZGejeStvQ==", "dev": true, "dependencies": { - "@typescript-eslint/types": "4.22.0", + "@typescript-eslint/types": "4.22.1", "eslint-visitor-keys": "^2.0.0" }, "engines": { @@ -18068,13 +17979,13 @@ "dev": true }, "@typescript-eslint/eslint-plugin": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.22.0.tgz", - "integrity": "sha512-U8SP9VOs275iDXaL08Ln1Fa/wLXfj5aTr/1c0t0j6CdbOnxh+TruXu1p4I0NAvdPBQgoPjHsgKn28mOi0FzfoA==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.22.1.tgz", + "integrity": "sha512-kVTAghWDDhsvQ602tHBc6WmQkdaYbkcTwZu+7l24jtJiYvm9l+/y/b2BZANEezxPDiX5MK2ZecE+9BFi/YJryw==", "dev": true, "requires": { - "@typescript-eslint/experimental-utils": "4.22.0", - "@typescript-eslint/scope-manager": "4.22.0", + "@typescript-eslint/experimental-utils": "4.22.1", + "@typescript-eslint/scope-manager": "4.22.1", "debug": "^4.1.1", "functional-red-black-tree": "^1.0.1", "lodash": "^4.17.15", @@ -18095,15 +18006,15 @@ } }, "@typescript-eslint/experimental-utils": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-4.22.0.tgz", - "integrity": "sha512-xJXHHl6TuAxB5AWiVrGhvbGL8/hbiCQ8FiWwObO3r0fnvBdrbWEDy1hlvGQOAWc6qsCWuWMKdVWlLAEMpxnddg==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-4.22.1.tgz", + "integrity": "sha512-svYlHecSMCQGDO2qN1v477ax/IDQwWhc7PRBiwAdAMJE7GXk5stF4Z9R/8wbRkuX/5e9dHqbIWxjeOjckK3wLQ==", "dev": true, "requires": { "@types/json-schema": "^7.0.3", - "@typescript-eslint/scope-manager": "4.22.0", - "@typescript-eslint/types": "4.22.0", - "@typescript-eslint/typescript-estree": "4.22.0", + "@typescript-eslint/scope-manager": "4.22.1", + "@typescript-eslint/types": "4.22.1", + "@typescript-eslint/typescript-estree": "4.22.1", "eslint-scope": "^5.0.0", "eslint-utils": "^2.0.0" } @@ -18118,84 +18029,32 @@ "@typescript-eslint/types": "4.22.1", "@typescript-eslint/typescript-estree": "4.22.1", "debug": "^4.1.1" - }, - "dependencies": { - "@typescript-eslint/scope-manager": { - "version": "4.22.1", - "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.22.1.tgz", - "integrity": "sha512-d5bAiPBiessSmNi8Amq/RuLslvcumxLmyhf1/Xa9IuaoFJ0YtshlJKxhlbY7l2JdEk3wS0EnmnfeJWSvADOe0g==", - "dev": true, - "requires": { - "@typescript-eslint/types": "4.22.1", - "@typescript-eslint/visitor-keys": "4.22.1" - } - }, - "@typescript-eslint/types": { - "version": "4.22.1", - "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.22.1.tgz", - "integrity": "sha512-2HTkbkdAeI3OOcWbqA8hWf/7z9c6gkmnWNGz0dKSLYLWywUlkOAQ2XcjhlKLj5xBFDf8FgAOF5aQbnLRvgNbCw==", - "dev": true - }, - "@typescript-eslint/typescript-estree": { - "version": "4.22.1", - "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.22.1.tgz", - "integrity": "sha512-p3We0pAPacT+onSGM+sPR+M9CblVqdA9F1JEdIqRVlxK5Qth4ochXQgIyb9daBomyQKAXbygxp1aXQRV0GC79A==", - "dev": true, - "requires": { - "@typescript-eslint/types": "4.22.1", - "@typescript-eslint/visitor-keys": "4.22.1", - "debug": "^4.1.1", - "globby": "^11.0.1", - "is-glob": "^4.0.1", - "semver": "^7.3.2", - "tsutils": "^3.17.1" - } - }, - "@typescript-eslint/visitor-keys": { - "version": "4.22.1", - "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.1.tgz", - "integrity": "sha512-WPkOrIRm+WCLZxXQHCi+WG8T2MMTUFR70rWjdWYddLT7cEfb2P4a3O/J2U1FBVsSFTocXLCoXWY6MZGejeStvQ==", - "dev": true, - "requires": { - "@typescript-eslint/types": "4.22.1", - "eslint-visitor-keys": "^2.0.0" - } - }, - "semver": { - "version": "7.3.5", - "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz", - "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==", - "dev": true, - "requires": { - "lru-cache": "^6.0.0" - } - } } }, "@typescript-eslint/scope-manager": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.22.0.tgz", - "integrity": "sha512-OcCO7LTdk6ukawUM40wo61WdeoA7NM/zaoq1/2cs13M7GyiF+T4rxuA4xM+6LeHWjWbss7hkGXjFDRcKD4O04Q==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.22.1.tgz", + "integrity": "sha512-d5bAiPBiessSmNi8Amq/RuLslvcumxLmyhf1/Xa9IuaoFJ0YtshlJKxhlbY7l2JdEk3wS0EnmnfeJWSvADOe0g==", "dev": true, "requires": { - "@typescript-eslint/types": "4.22.0", - "@typescript-eslint/visitor-keys": "4.22.0" + "@typescript-eslint/types": "4.22.1", + "@typescript-eslint/visitor-keys": "4.22.1" } }, "@typescript-eslint/types": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.22.0.tgz", - "integrity": "sha512-sW/BiXmmyMqDPO2kpOhSy2Py5w6KvRRsKZnV0c4+0nr4GIcedJwXAq+RHNK4lLVEZAJYFltnnk1tJSlbeS9lYA==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.22.1.tgz", + "integrity": "sha512-2HTkbkdAeI3OOcWbqA8hWf/7z9c6gkmnWNGz0dKSLYLWywUlkOAQ2XcjhlKLj5xBFDf8FgAOF5aQbnLRvgNbCw==", "dev": true }, "@typescript-eslint/typescript-estree": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.22.0.tgz", - "integrity": "sha512-TkIFeu5JEeSs5ze/4NID+PIcVjgoU3cUQUIZnH3Sb1cEn1lBo7StSV5bwPuJQuoxKXlzAObjYTilOEKRuhR5yg==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.22.1.tgz", + "integrity": "sha512-p3We0pAPacT+onSGM+sPR+M9CblVqdA9F1JEdIqRVlxK5Qth4ochXQgIyb9daBomyQKAXbygxp1aXQRV0GC79A==", "dev": true, "requires": { - "@typescript-eslint/types": "4.22.0", - "@typescript-eslint/visitor-keys": "4.22.0", + "@typescript-eslint/types": "4.22.1", + "@typescript-eslint/visitor-keys": "4.22.1", "debug": "^4.1.1", "globby": "^11.0.1", "is-glob": "^4.0.1", @@ -18215,12 +18074,12 @@ } }, "@typescript-eslint/visitor-keys": { - "version": "4.22.0", - "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.0.tgz", - "integrity": "sha512-nnMu4F+s4o0sll6cBSsTeVsT4cwxB7zECK3dFxzEjPBii9xLpq4yqqsy/FU5zMfan6G60DKZSCXAa3sHJZrcYw==", + "version": "4.22.1", + "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.1.tgz", + "integrity": "sha512-WPkOrIRm+WCLZxXQHCi+WG8T2MMTUFR70rWjdWYddLT7cEfb2P4a3O/J2U1FBVsSFTocXLCoXWY6MZGejeStvQ==", "dev": true, "requires": { - "@typescript-eslint/types": "4.22.0", + "@typescript-eslint/types": "4.22.1", "eslint-visitor-keys": "^2.0.0" } }, diff --git a/FrontEnd/package.json b/FrontEnd/package.json index 4f12336b..bb059000 100644 --- a/FrontEnd/package.json +++ b/FrontEnd/package.json @@ -76,7 +76,7 @@ "@types/remarkable": "^2.0.1",
"@types/webpack-env": "^1.16.0",
"@types/xregexp": "^4.3.0",
- "@typescript-eslint/eslint-plugin": "^4.22.0",
+ "@typescript-eslint/eslint-plugin": "^4.22.1",
"@typescript-eslint/parser": "^4.22.1",
"@yarnpkg/pnpify": "^2.4.0",
"babel-loader": "^8.2.2",
diff --git a/FrontEnd/src/app/utilities/useReverseScrollPositionRemember.ts b/FrontEnd/src/app/utilities/useReverseScrollPositionRemember.ts index 67c7c458..742751eb 100644 --- a/FrontEnd/src/app/utilities/useReverseScrollPositionRemember.ts +++ b/FrontEnd/src/app/utilities/useReverseScrollPositionRemember.ts @@ -1,39 +1,47 @@ import React from "react"; let on = false; +let recordDisabled = false; + +function getScrollPosition(): number { + if (document.documentElement.scrollHeight <= window.innerHeight) { + return 0; + } else { + return ( + document.documentElement.scrollHeight - + document.documentElement.scrollTop - + window.innerHeight + ); + } +} + +let scrollPosition = getScrollPosition(); + +function scrollToRecordPosition(): void { + if (document.documentElement.scrollHeight <= window.innerHeight) return; + document.documentElement.scrollTop = + document.documentElement.scrollHeight - window.innerHeight - scrollPosition; +} + +const scrollListener = (): void => { + if (recordDisabled) return; + scrollPosition = getScrollPosition(); +}; + +const resizeObserver = new ResizeObserver(() => { + scrollToRecordPosition(); +}); + +export function setRecordDisabled(disabled: boolean): void { + recordDisabled = disabled; + if (!disabled) scrollToRecordPosition(); +} export default function useReverseScrollPositionRemember(): void { React.useEffect(() => { if (on) return; on = true; - - function getScrollPosition(): number { - if (document.documentElement.scrollHeight <= window.innerHeight) { - return 0; - } else { - return ( - document.documentElement.scrollHeight - - document.documentElement.scrollTop - - window.innerHeight - ); - } - } - - let scrollPosition = getScrollPosition(); - const scrollListener = (): void => { - scrollPosition = getScrollPosition(); - }; - window.addEventListener("scroll", scrollListener); - - const resizeObserver = new ResizeObserver(() => { - if (document.documentElement.scrollHeight <= window.innerHeight) return; - document.documentElement.scrollTop = - document.documentElement.scrollHeight - - window.innerHeight - - scrollPosition; - }); - resizeObserver.observe(document.documentElement); return () => { diff --git a/FrontEnd/src/app/views/timeline-common/TimelinePagedPostListView.tsx b/FrontEnd/src/app/views/timeline-common/TimelinePagedPostListView.tsx index b44a8ef6..ee52f4c0 100644 --- a/FrontEnd/src/app/views/timeline-common/TimelinePagedPostListView.tsx +++ b/FrontEnd/src/app/views/timeline-common/TimelinePagedPostListView.tsx @@ -1,8 +1,11 @@ import React from "react"; +import { fromEvent } from "rxjs"; +import { filter, throttleTime } from "rxjs/operators"; import { HttpTimelinePostInfo } from "@/http/timeline"; import TimelinePostListView from "./TimelinePostListView"; +import { setRecordDisabled } from "@/utilities/useReverseScrollPositionRemember"; export interface TimelinePagedPostListViewProps { className?: string; @@ -24,18 +27,32 @@ const TimelinePagedPostListView: React.FC<TimelinePagedPostListViewProps> = ( : posts.slice(-lastViewCount); }, [posts, lastViewCount]); + const scrollTopHandler = React.useRef<() => void>(); + React.useEffect(() => { - if (lastViewCount < posts.length) { - const listener = (): void => { - if (window.scrollY === 0 && lastViewCount < posts.length) { - setLastViewCount(lastViewCount + 10); - } - }; - window.addEventListener("scroll", listener); - return () => window.removeEventListener("scroll", listener); - } + scrollTopHandler.current = () => { + if (lastViewCount < posts.length) { + setRecordDisabled(true); + setLastViewCount(lastViewCount + 10); + setTimeout(() => { + setRecordDisabled(false); + }, 500); + } + }; }, [lastViewCount, posts]); + React.useEffect(() => { + const subscription = fromEvent(window, "scroll") + .pipe( + filter(() => window.scrollY === 0), + throttleTime(800) + ) + .subscribe(() => { + scrollTopHandler.current?.(); + }); + return () => subscription.unsubscribe(); + }, []); + return ( <TimelinePostListView className={className} |