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Example: Override Navbar with sticky position #81

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Example: Override Navbar with sticky position #81

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171 changes: 171 additions & 0 deletions _override/NavBar.tsx
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import * as React from 'react';
import styled from 'styled-components';

import { Flex, Link, SearchBox } from '@redocly/ui';

export default function NavBar(props) {
const { items, logo } = props;

const [isMobileMenuOpened, setMobileMenuOpened] = React.useState(false);
const [pageIsScrolled, setPageIsScrolled] = React.useState(false);
const toggleMobileMenu = () => setMobileMenuOpened(!isMobileMenuOpened);
const hideMobileMenu = () => setMobileMenuOpened(false);

React.useEffect(() => {
const handleScroll = () => setPageIsScrolled(window.scrollY > 10);

document.addEventListener('scroll', handleScroll);

return () => document.removeEventListener('scroll', handleScroll);
}, []);

const navItems = items
.filter(item => item.type !== 'search')
.map((item, index) => {
return (
<NavItem key={index} onClick={hideMobileMenu}>
<Link to={item.link}>{item.label}</Link>
</NavItem>
);
});

return (
<NavWrapper scrolled={pageIsScrolled ? 1 : 0}>
<Flex
maxWidth={{ xs: '100%', large: '1400px' }}
alignItems='center'
justifyContent='space-between'
width='100%'
mx='auto'>
<img src={logo} alt='' height='50' />
<NavItems>
{navItems}
<SearchBox pathPrefix={props.pathPrefix} />
</NavItems>
</Flex>
<NavControls>
<MobileMenuIcon onClick={toggleMobileMenu} />
</NavControls>
<MobileMenu isShown={isMobileMenuOpened}>
<CloseIcon onClick={hideMobileMenu} />
{navItems}
<SearchBox />
</MobileMenu>
</NavWrapper>
);
}

const NavItem = styled.li`
padding: 10px 0;
`;

const NavWrapper = styled.nav<{ scrolled: boolean }>`
padding: 15px 20px;
display: flex;
position: sticky;
z-index: 50;
transition: all 0.25s ease;
background-color: #227a88;

@media only screen and (min-width: ${({ theme }) => theme.breakpoints.large}) {
padding: 10px 15px;
box-shadow: ${({ scrolled }) => (scrolled ? '0px 1px 0px 0px rgba(225,225,225,0.2)' : 'none')};
top: 0;
left: 0;
right: 0;
}
`;

const NavItems = styled.ul`
display: none;
margin: 0 0 0 40px;
padding: 0;
align-items: center;
justify-content: start;

& li {
list-style: none;
margin-right: 20px;

& a {
color: #ffffff;
text-decoration: none;
}
}

@media only screen and (min-width: ${({ theme }) => theme.breakpoints.medium}) {
display: flex;
}
`;

export const MobileMenu = styled.ul<{ isShown: boolean }>`
background: ${props => props.theme.colors.primary.main};
list-style: none;
padding: 50px 40px;
margin: 0;
position: absolute;
border-top: 1px solid transparent;
z-index: 100;
color: ${props => props.theme.colors.primary.contrastText};
top: 0;
right: 0;
left: 0;
bottom: 0;
font-size: 1.1875rem;
box-shadow: 0px 10px 100px 0px rgba(35, 35, 35, 0.1);
text-align: left;

display: none;

@media only screen and (max-width: ${({ theme }) => theme.breakpoints.medium}) {
position: fixed;
display: ${props => (props.isShown ? 'flex' : 'none')};
flex-direction: column;
overflow-y: auto;
}

& li {
list-style: none;
margin-right: 20px;

& a {
color: #ffffff;
text-decoration: none;
}
}
`;

export const NavControls = styled.div`
padding: 10px;
display: flex;
align-items: center;
flex: 1;
justify-content: flex-end;
@media only screen and (min-width: ${({ theme }) => theme.breakpoints.medium}) {
display: none;
}
`;

export const MobileMenuIcon = styled.span`
width: 1.25em;
height: 1.25em;
display: inline-block;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' version='1.1' x='0' y='0' viewBox='0 0 396.7 396.7' xml:space='preserve'%3E%3Cpath fill='white' d='M17 87.8h362.7c9.4 0 17-7.6 17-17s-7.6-17-17-17H17c-9.3 0-17 7.7-17 17C0 80.2 7.7 87.8 17 87.8zM17 215.3h362.7c9.4 0 17-7.6 17-17s-7.6-17-17-17H17c-9.3 0-17 7.7-17 17S7.7 215.3 17 215.3zM17 342.8h362.7c9.4 0 17-7.6 17-17s-7.6-17-17-17H17c-9.3 0-17 7.7-17 17S7.7 342.8 17 342.8z'/%3E%3C/svg%3E");
cursor: pointer;

@media only screen and (min-width: ${({ theme }) => theme.breakpoints.medium}) {
display: none;
}
`;

export const CloseIcon = styled.i`
cursor: pointer;
position: absolute;
right: 20px;
top: 25px;
width: 15px;
height: 15px;
background-repeat: no-repeat;
background-size: 15px 15px;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' version='1.1' viewBox='0 0 15.6 15.6' enable-background='new 0 0 15.642 15.642'%3E%3Cpath fill-rule='evenodd' fill='white' d='M8.9 7.8l6.5-6.5c0.3-0.3 0.3-0.8 0-1.1 -0.3-0.3-0.8-0.3-1.1 0L7.8 6.8 1.3 0.2c-0.3-0.3-0.8-0.3-1.1 0 -0.3 0.3-0.3 0.8 0 1.1l6.5 6.5L0.2 14.4c-0.3 0.3-0.3 0.8 0 1.1 0.1 0.1 0.3 0.2 0.5 0.2s0.4-0.1 0.5-0.2l6.5-6.5 6.5 6.5c0.1 0.1 0.3 0.2 0.5 0.2 0.2 0 0.4-0.1 0.5-0.2 0.3-0.3 0.3-0.8 0-1.1L8.9 7.8z'/%3E%3C/svg%3E");
`;