109 lines
2.7 KiB
TypeScript
109 lines
2.7 KiB
TypeScript
import React, { Component } from 'react';
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import classnames from 'classnames';
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import DropdownShell from './DropdownShell';
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interface Option<T> {
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name: any;
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value: T;
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color?: string;
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hidden: boolean | undefined;
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}
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interface Props<T> {
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value: T;
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options: Option<T>[];
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label?: string;
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ariaLabel: string;
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extra?: any;
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size?: string;
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color?: string;
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menuAlign?: string;
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disabled?: boolean;
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onChange(value: T): void;
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}
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export default class ColorDropdown<T> extends Component<Props<T>, {}> {
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private dropdownShell: DropdownShell | null;
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public render() {
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const { ariaLabel, disabled, color, size } = this.props;
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return (
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<DropdownShell
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renderLabel={this.renderLabel}
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renderOptions={this.renderOptions}
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size={size}
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color={color}
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ariaLabel={ariaLabel}
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ref={el => (this.dropdownShell = el)}
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disabled={disabled}
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/>
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);
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}
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private renderLabel = () => {
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const label = this.props.label ? `${this.props.label}:` : '';
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const activeOption = this.getActiveOption();
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return (
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<span>
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{label} {activeOption ? activeOption.name : '-'}
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</span>
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);
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};
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private renderOptions = () => {
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const { options, value, menuAlign, extra } = this.props;
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const listItems = options
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.filter(opt => !opt.hidden)
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.reduce((prev: any[], opt) => {
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const prevOpt = prev.length ? prev[prev.length - 1] : null;
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if (prevOpt && !prevOpt.divider && prevOpt.color !== opt.color) {
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prev.push({ divider: true });
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}
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prev.push(opt);
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return prev;
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}, []);
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const menuClass = classnames({
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'dropdown-menu': true,
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[`dropdown-menu-${menuAlign || ''}`]: !!menuAlign
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});
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return (
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<ul className={menuClass}>
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{listItems.map((option, i) => {
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if (option.divider) {
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return <li key={i} role="separator" className="divider" />;
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} else {
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return (
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<li key={i} style={{ borderLeft: `2px solid ${option.color}` }}>
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<a
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className={option.value === value ? 'active' : ''}
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onClick={this.onChange.bind(null, option.value)}
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>
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{option.name}
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</a>
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</li>
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);
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}
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})}
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{extra && <li key="separator" role="separator" className="divider" />}
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{extra}
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</ul>
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);
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};
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private onChange = (value: any) => {
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this.props.onChange(value);
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if (this.dropdownShell) {
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this.dropdownShell.close();
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}
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};
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private getActiveOption() {
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return this.props.options.find(opt => opt.value === this.props.value);
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}
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}
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