Awesome GitHub RepositoriesScroll Event Controllers

This project is a cross-platform mobile carousel component for creating swipeable image and content sliders. It functions as a virtualized list component that maintains performance by removing off-screen elements and utilizes a native-driver animation library to map scroll offsets to style properties on the native thread for lag-free transitions. The library provides a parallax image gallery capable of shifting images relative to scroll progress to create a sense of depth. It also features a layout system that supports right-to-left orientations for languages such as Arabic and Hebrew. Capab

elevator.js is a lightweight JavaScript library that adds a playful, elevator-themed scroll-to-top button to a webpage. When clicked, it smoothly animates the page back to the top while playing a looping elevator music track in the background, masking the transition and adding a whimsical touch to the user experience. The library goes beyond a simple scroll-to-top button by offering configurable scroll duration, the ability to scroll to any specified DOM element with optional vertical padding, and callback hooks that fire user-defined functions at the start and end of the animation. This allo

react-waypoint este o componentă React și un instrument de urmărire a viewport-ului care execută funcții bazate pe vizibilitatea unui nod DOM într-o zonă scrollabilă. Acesta monitorizează când elementele intră sau părăsesc viewport-ul browserului sau un container de scroll specificat pentru a declanșa callback-uri. Proiectul permite implementarea scroll-ului infinit, încărcarea leneșă a activelor și animații declanșate la scroll. Permite definirea containerelor de scroll personalizate și configurarea limitelor viewport-ului folosind offset-uri pentru a determina exact când se declanșează evenimentele. Instrumentul oferă urmărirea poziției elementelor și monitorizarea vizibilității atât pentru scroll vertical, cât și orizontal. Include controlul sensibilității declanșatorului și limitarea ratei evenimentelor (throttling) pentru a gestiona execuția callback-urilor în timpul scroll-ului rapid.

react-waypoint este un set de componente și wrappere React concepute pentru a executa callback-uri atunci când anumite elemente DOM intră sau ies din zona vizibilă a ecranului. Acesta funcționează ca un tracker de vizibilitate a viewport-ului care monitorizează când elementele traversează limite spațiale predefinite. Proiectul oferă o componentă de declanșare la scroll și un wrapper de evenimente care permit configurații de offset personalizate pentru a ține cont de elementele UI fixe. Aceste instrumente pot fi configurate să utilizeze un nod DOM specific sau fereastra globală ca strămoș scrollabil pentru calculele de vizibilitate. Biblioteca acoperă mai multe tipare de implementare, inclusiv scroll infinit, încărcarea leneșă (lazy loading) a conținutului și animații declanșate la scroll. Gestionează aceste acțiuni prin monitorizarea vizibilității elementelor și declanșarea funcțiilor bazate pe intersecția dintre bounding box-ul unui element și viewport-ul curent.

ScrollTrigger is a JavaScript library and DOM scroll event manager designed to execute callbacks and toggle CSS classes when elements enter or exit the browser viewport. It functions as a high-level interface for the Intersection Observer API and a system for initiating visual transitions and asynchronous tasks based on an element's position relative to the viewport. The tool allows for the definition of precise trigger points using pixel or percentage offsets to control exactly when events fire. It manages scroll-driven visual animations and lazy loading implementations by tracking visibilit

FloatingActionButton is a scroll-driven UI controller and mobile-first interface element. It provides a circular button that floats above content and toggles its visibility based on scroll direction to maximize available screen space. The component functions as a CSS-animated UI element, utilizing stylesheet transitions to handle the visual sliding and fading of the interface controls. It is designed for mobile interfaces to provide quick access to primary actions without obscuring page content. The system manages visibility by monitoring scroll events on a designated DOM container and detec

This project is a frontend component designed to manage dynamic content loading and scroll-based interactions within web applications. It provides a reusable interface for handling data injection as users navigate through scrollable areas, ensuring that content updates occur automatically based on scroll position or manual user triggers. The component distinguishes itself by supporting both standard downward infinite scrolling and inverse scrolling, which allows for the natural expansion of content history in chat-like interfaces. It offers developers full control over the visual presentation

This library provides a set of React components designed to improve initial page load performance by deferring the rendering of images and other elements until they enter the browser viewport. By managing content visibility and asset delivery, it reduces unnecessary network data usage and accelerates page rendering. The project distinguishes itself through its use of the browser-native intersection observer to track element visibility, which eliminates the need for manual scroll calculations. It further optimizes performance by consolidating event listeners into a single parent component, min

React Parallax is a React animation component library that creates multi-speed scrolling background depth effects. It computes relative scroll positions within viewports to translate raw page offsets into normalized animation progress values, applying hardware-accelerated translation and scaling styles to DOM nodes for smooth visual movement. The library supports rendering background images and arbitrary visual elements that shift positions at different speeds relative to foreground content. It provides dynamic Gaussian blur filter transitions that interpolate based on current scroll velocity