I have a nav bar that when expanded transitions to use 50% of the screen, inside of this expanded nav element, is a search field component. The problem I'm facing is that the search field is appearing before the nav bar finishes expanding(which I know makes sense). I just can't figure how to fix that. Thanks in advance! This is the relevant code:
JSX:
const NavMobile = () => {
const [isExpanded, setIsExpanded] = useState(false);
const expandNav = () => {
document.getElementById("nav")?.classList.add("expanded");
setIsExpanded(true);
};
const closeNav = () => {
document.getElementById("nav")?.classList.remove("expanded");
setIsExpanded(false);
};
return (
<div id="nav" className="navWrapper">
<nav className="container">
<button
className="navButton"
style={{ display: isExpanded ? "none" : undefined }}
onClick={expandNav}
>
<i className="fa fa-search"></i> Search a service ...
</button>
{isExpanded ? (
<div className="expandedContainer">
<ServiceSearchFields />
</div>
) : null}
</nav>
</div>
);
};
SCSS:
.navWrapper {
transition: 1000ms;
box-shadow: 2px 4px 5px 0px rgba(0, 0, 0, 0.53);
height: 70px;
background-color: var(--mainColor);
display: flex;
margin: 0;
}
.expanded {
height: 35vh !important;
}
.expandedContainer {
height: 100%;
display: flex;
flex-direction: column;
justify-content: flex-start;
align-items: center;
gap: 15px;
}
It could be a good idea to use the 'transitionend' event listener attached to your wrapper. Sample: https://stackblitz.com/edit/react-5k1ssu Please check the example below:
import React, { useState, useRef, useEffect } from 'react';
import './style.css';
const NavMobile = () => {
const [isExpanded, setIsExpanded] = useState(false);
const [isSearchVisible, setIsSearchVisible] = useState(false);
const wrapper = useRef(null);
const expandNav = () => {
document.getElementById('nav')?.classList.add('expanded');
setIsExpanded(true);
};
const closeNav = () => {
document.getElementById('nav')?.classList.remove('expanded');
setIsExpanded(false);
};
const showSearch = () => {
setIsSearchVisible(true);
};
useEffect(() => {
if (!wrapper.current) return;
wrapper.current.addEventListener('transitionend', showSearch);
console.log(wrapper.current);
return () => {
wrapper.current.removeEventListener('transitionend', showSearch);
};
}, []);
return (
<div id="nav" ref={wrapper} className="navWrapper">
<nav className="container">
<button
className="navButton"
style={{ display: isExpanded ? 'none' : undefined }}
onClick={expandNav}
>
<i className="fa fa-search"></i> Search a service ...
</button>
{isExpanded ? (
<div className="expandedContainer">
{isSearchVisible && <div>Search</div>}
</div>
) : null}
</nav>
</div>
);
};
export default function App() {
return (
<div>
<NavMobile />
</div>
);
}.navWrapper {
transition: 1000ms;
box-shadow: 2px 4px 5px 0px rgba(0, 0, 0, 0.53);
height: 70px;
background-color: var(--mainColor);
display: flex;
margin: 0;
}
.expanded {
height: 35vh !important;
}
.expandedContainer {
height: 100%;
display: flex;
flex-direction: column;
justify-content: flex-start;
align-items: center;
gap: 15px;
}<div id="root"></div>