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import * as _ from 'lodash';
import Menu from 'material-ui/Menu';
import Popover from 'material-ui/Popover';
import * as React from 'react';
import {colors} from 'ts/utils/colors';
const CHECK_CLOSE_POPOVER_INTERVAL_MS = 300;
const DEFAULT_STYLE = {
fontSize: 14,
};
interface DropDownMenuItemProps {
title: string;
subMenuItems: React.ReactNode[];
style?: React.CSSProperties;
menuItemStyle?: React.CSSProperties;
isNightVersion?: boolean;
}
interface DropDownMenuItemState {
isDropDownOpen: boolean;
anchorEl?: HTMLInputElement;
}
export class DropDownMenuItem extends React.Component<DropDownMenuItemProps, DropDownMenuItemState> {
public static defaultProps: Partial<DropDownMenuItemProps> = {
style: DEFAULT_STYLE,
menuItemStyle: DEFAULT_STYLE,
isNightVersion: false,
};
private isHovering: boolean;
private popoverCloseCheckIntervalId: number;
constructor(props: DropDownMenuItemProps) {
super(props);
this.state = {
isDropDownOpen: false,
};
}
public componentDidMount() {
this.popoverCloseCheckIntervalId = window.setInterval(() => {
this.checkIfShouldClosePopover();
}, CHECK_CLOSE_POPOVER_INTERVAL_MS);
}
public componentWillUnmount() {
window.clearInterval(this.popoverCloseCheckIntervalId);
}
public render() {
const colorStyle = this.props.isNightVersion ? 'white' : this.props.style.color;
return (
<div
style={{...this.props.style, color: colorStyle}}
onMouseEnter={this.onHover.bind(this)}
onMouseLeave={this.onHoverOff.bind(this)}
>
<div className="flex relative">
<div style={{paddingRight: 10}}>
{this.props.title}
</div>
<div className="absolute" style={{paddingLeft: 3, right: 3, top: -2}}>
<i className="zmdi zmdi-caret-right" style={{fontSize: 22}} />
</div>
</div>
<Popover
open={this.state.isDropDownOpen}
anchorEl={this.state.anchorEl}
anchorOrigin={{horizontal: 'middle', vertical: 'bottom'}}
targetOrigin={{horizontal: 'middle', vertical: 'top'}}
onRequestClose={this.closePopover.bind(this)}
useLayerForClickAway={false}
>
<div
onMouseEnter={this.onHover.bind(this)}
onMouseLeave={this.onHoverOff.bind(this)}
>
<Menu style={{color: colors.grey}}>
{this.props.subMenuItems}
</Menu>
</div>
</Popover>
</div>
);
}
private onHover(event: React.FormEvent<HTMLInputElement>) {
this.isHovering = true;
this.checkIfShouldOpenPopover(event);
}
private checkIfShouldOpenPopover(event: React.FormEvent<HTMLInputElement>) {
if (this.state.isDropDownOpen) {
return; // noop
}
this.setState({
isDropDownOpen: true,
anchorEl: event.currentTarget,
});
}
private onHoverOff(event: React.FormEvent<HTMLInputElement>) {
this.isHovering = false;
}
private checkIfShouldClosePopover() {
if (!this.state.isDropDownOpen || this.isHovering) {
return; // noop
}
this.closePopover();
}
private closePopover() {
this.setState({
isDropDownOpen: false,
});
}
}
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