react-just-parallax
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    3.1.14 • Public • Published

    React Just Parallax

    React Just Parallax

    React library for scroll and mousemove parallax effect
    Open source, production-ready


    React Just Parallax is an open source, production-ready library that's designed for all creative developers and more.

    • Written in TypeScript
    • Super lightweight
    • Easy to use
    • blazing fast

    📦 NPM Link

    📜 Examples

    ⚖️ License

    • React Just Parallax is MIT licensed.

    ✍🏻 Author

    🐇 Quick start

    npm install react-just-parallax
    
    import { MouseParallax, ScrollParallax } from "react-just-parallax";
    
    export const MyComponent = () => (
      <>
        <MouseParallax>
          <p>I'm reacting to mouse move</p>
        </MouseParallax>
    
        <ScrollParallax>
          <p>I'm reacting to scroll</p>
        </ScrollParallax>
      </>
    );

    Props for MouseParallax

    Name Type Default Description
    strength number 0.14 Parallax offset multiplier. Moving mouse by 10 pixels will move element position by 10px * strength
    lerpEase number 0.06 Determines how quick the interpolation between offset values occurs (the higher the quicker)
    isAbsolutelyPositioned boolean false If the element you want to use parallax on is positioned absolutely, set this prop to true
    zIndex number | null null Specify element's outer container z-index (useful while using isAbsolutelyPositioned prop)
    shouldPause boolean true Stops element from reacting to scroll and interpolating offset if it is out of view
    enableOnTouchDevice boolean false Turns on/off parallax effect on touch devices
    scrollContainerRef React.MutableRefObject | null null Use when element is situated in scrollable element other than window
    parallaxContainerRef React.MutableRefObject | null null By default, element reacts to mousemove on window. You can specify any other container using this prop to make element react only within given container
    shouldResetPosition boolean false Resets element's position if cursor leaves window or leaves parallaxContainerRef

    Props for ScrollParallax

    Name Type Default Description
    strength number 0.14 Parallax offset multiplier. Scrolling by 10 pixels will move element position by 10px * strength
    lerpEase number 0.06 Determines how quick the interpolation between offset values occurs (the higher the quicker)
    isAbsolutelyPositioned boolean false If the element you want to use parallax on is positioned absolutely, set this prop to true
    zIndex number | null null Specify element's outer container z-index (useful while using isAbsolutelyPositioned prop)
    shouldPause boolean true Stops element from reacting to scroll and interpolating offset if it is out of view
    enableOnTouchDevice boolean true Turns on/off parallax effect on touch devices
    isHorizontal boolean false Enable if using horizontal scrolling
    scrollContainerRef React.MutableRefObject | null null Use when element is situated in scrollable element other than window

    Recalculating values on demand for ScrollParallax

    It's sometimes necessary to update values such as element's position or sizes on demand, for example if the DOM structure changes.

    Library can't know of this kind of changes so it is not able to handle it by itself, and that's when we need to use ScrollParallaxHandle to update them manually.

    import { ScrollParallax, ScrollParallaxHandle } from "react-just-parallax";
    
    export const MyComponent = () => {
      const [display, setDisplay] = useState(true);
      const scrollParallaxRef = useRef<ScrollParallaxHandle | null>(null);
    
      useEffect(() => {
        scrollParallaxRef.current?.updateValues();
      }, [display]);
    
      return (
        <>
          <ScrollParallax ref={scrollParallaxRef}>
            <p>I'm reacting to scroll</p>
          </ScrollParallax>
    
          {display && (
            <button onClick={() => setDisplay((false)}>
              Disappear me
            </button>
          )}
        </>
      );
    };

    Install

    npm i react-just-parallax

    DownloadsWeekly Downloads

    381

    Version

    3.1.14

    License

    MIT

    Unpacked Size

    112 kB

    Total Files

    23

    Last publish

    Collaborators

    • michalzalobny