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outline/app/components/Layout/components/SidebarLink.js

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// @flow
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import React, { Component } from 'react';
import { observable, action } from 'mobx';
import { observer } from 'mobx-react';
import { NavLink } from 'react-router-dom';
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import { color, fontWeight } from 'shared/styles/constants';
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import styled from 'styled-components';
import Flex from 'shared/components/Flex';
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import CollapsedIcon from 'components/Icon/CollapsedIcon';
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const activeStyle = {
color: color.black,
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fontWeight: fontWeight.medium,
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};
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const StyledGoTo = styled(CollapsedIcon)`
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margin-bottom: -4px;
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margin-left: 1px;
margin-right: -3px;
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${({ expanded }) => !expanded && 'transform: rotate(-90deg);'}
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`;
const IconWrapper = styled.span`
margin-left: -4px;
margin-right: 4px;
height: 24px;
`;
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const StyledNavLink = styled(NavLink)`
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display: flex;
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width: 100%;
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position: relative;
overflow: hidden;
text-overflow: ellipsis;
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padding: 4px 0;
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margin-left: ${({ hasChildren }) => (hasChildren ? '-20px;' : '0')};
color: ${color.slateDark};
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font-size: 15px;
cursor: pointer;
&:hover {
color: ${color.text};
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}
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&.active {
svg {
fill: ${activeStyle.color}
}
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}
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`;
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const StyledDiv = StyledNavLink.withComponent('div');
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type Props = {
to?: string,
onClick?: SyntheticEvent => *,
children?: React$Element<*>,
icon?: React$Element<*>,
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expand?: boolean,
expandedContent?: React$Element<*>,
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};
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@observer class SidebarLink extends Component {
props: Props;
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@observable expanded: boolean = false;
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componentDidMount() {
if (this.props.expand) this.handleExpand();
}
componentDidReceiveProps(nextProps: Props) {
if (nextProps.expand) this.handleExpand();
}
@action handleClick = (event: SyntheticEvent) => {
event.preventDefault();
event.stopPropagation();
this.expanded = !this.expanded;
};
@action handleExpand = () => {
this.expanded = true;
};
render() {
const { icon, children, expandedContent, ...rest } = this.props;
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const Component = rest.to ? StyledNavLink : StyledDiv;
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return (
<Flex column>
<Component
exact
activeStyle={activeStyle}
hasChildren={expandedContent}
{...rest}
>
{icon && <IconWrapper>{icon}</IconWrapper>}
{expandedContent &&
<StyledGoTo expanded={this.expanded} onClick={this.handleClick} />}
<Content onClick={this.handleExpand}>{children}</Content>
</Component>
{this.expanded && expandedContent}
</Flex>
);
}
}
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const Content = styled.div`
width: 100%;
`;
export default SidebarLink;