@shopgate/engage/components/ScrollHeader/index.js

Shopgate's ENGAGE library.

function _defineProperty(obj,key,value){if(key in obj){Object.defineProperty(obj,key,{value:value,enumerable:true,configurable:true,writable:true});}else{obj[key]=value;}return obj;}function _slicedToArray(arr,i){return _arrayWithHoles(arr)||_iterableToArrayLimit(arr,i)||_nonIterableRest();}function _nonIterableRest(){throw new TypeError("Invalid attempt to destructure non-iterable instance");}function _iterableToArrayLimit(arr,i){var _arr=[];var _n=true;var _d=false;var _e=undefined;try{for(var _i=arr[Symbol.iterator](),_s;!(_n=(_s=_i.next()).done);_n=true){_arr.push(_s.value);if(i&&_arr.length===i)break;}}catch(err){_d=true;_e=err;}finally{try{if(!_n&&_i["return"]!=null)_i["return"]();}finally{if(_d)throw _e;}}return _arr;}function _arrayWithHoles(arr){if(Array.isArray(arr))return arr;}import React,{useState}from'react';import PropTypes from'prop-types';import classNames from'classnames';import{useScrollDirectionChange}from'@shopgate/engage/core/hooks';import{root,scrolledIn,scrolledOut,transition}from"./style";/**
 * Scroll Header component
 * @param {Object} props props
 * @returns {JSX}
 */function ScrollHeader(_ref){var className=_ref.className,children=_ref.children,hideOnScroll=_ref.hideOnScroll,scrollOffset=_ref.scrollOffset;var _useState=useState(false),_useState2=_slicedToArray(_useState,2),shouldHideHeader=_useState2[0],setShouldHideHeader=_useState2[1];useScrollDirectionChange({enabled:hideOnScroll,offset:scrollOffset,onScrollDown:function onScrollDown(){setShouldHideHeader(true);},onScrollUp:function onScrollUp(){setShouldHideHeader(false);}});return React.createElement("div",{className:classNames(root,transition,className,_defineProperty(_defineProperty({},scrolledIn,!shouldHideHeader),scrolledOut,shouldHideHeader))},children);}ScrollHeader.defaultProps={className:null,hideOnScroll:true,scrollOffset:100};export default ScrollHeader;