MyCrypto/common/components/ui/ColorDropdown.tsx

127 lines
3.2 KiB
TypeScript

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