catstodon/app/javascript/mastodon/components/dropdown_menu.js

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import React from 'react';
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import Dropdown, { DropdownTrigger, DropdownContent } from 'react-simple-dropdown';
import PropTypes from 'prop-types';
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class DropdownMenu extends React.PureComponent {
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static propTypes = {
icon: PropTypes.string.isRequired,
items: PropTypes.array.isRequired,
size: PropTypes.number.isRequired,
direction: PropTypes.string,
ariaLabel: PropTypes.string
};
static defaultProps = {
ariaLabel: "Menu"
};
state = {
direction: 'left'
};
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setRef = (c) => {
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this.dropdown = c;
}
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handleClick = (i, e) => {
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const { action } = this.props.items[i];
if (typeof action === 'function') {
e.preventDefault();
action();
this.dropdown.hide();
}
}
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renderItem = (item, i) => {
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if (item === null) {
return <li key={ 'sep' + i } className='dropdown__sep' />;
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}
const { text, action, href = '#' } = item;
return (
<li className='dropdown__content-list-item' key={ text + i }>
<a href={href} target='_blank' rel='noopener' onClick={this.handleClick.bind(this, i)} className='dropdown__content-list-link'>
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{text}
</a>
</li>
);
}
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render () {
const { icon, items, size, direction, ariaLabel } = this.props;
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const directionClass = (direction === "left") ? "dropdown__left" : "dropdown__right";
return (
<Dropdown ref={this.setRef}>
<DropdownTrigger className='icon-button' style={{ fontSize: `${size}px`, width: `${size}px`, lineHeight: `${size}px` }} aria-label={ariaLabel}>
<i className={ `fa fa-fw fa-${icon} dropdown__icon` } aria-hidden={true} />
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</DropdownTrigger>
<DropdownContent className={directionClass}>
<ul className='dropdown__content-list'>
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{items.map(this.renderItem)}
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</ul>
</DropdownContent>
</Dropdown>
);
}
}
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export default DropdownMenu;