163 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			163 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import { PureComponent, createRef } from 'react';
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import classNames from 'classnames';
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import { AnimatedNumber } from './animated_number';
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import type { IconProp } from './icon';
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import { Icon } from './icon';
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interface Props {
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  className?: string;
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  title: string;
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  icon: string;
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  iconComponent: IconProp;
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  onClick?: React.MouseEventHandler<HTMLButtonElement>;
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  onMouseDown?: React.MouseEventHandler<HTMLButtonElement>;
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  onKeyDown?: React.KeyboardEventHandler<HTMLButtonElement>;
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  onKeyPress?: React.KeyboardEventHandler<HTMLButtonElement>;
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  active: boolean;
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  expanded?: boolean;
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  style?: React.CSSProperties;
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  activeStyle?: React.CSSProperties;
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  disabled: boolean;
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  inverted?: boolean;
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  animate: boolean;
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  overlay: boolean;
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  tabIndex: number;
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  counter?: number;
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  href?: string;
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  ariaHidden: boolean;
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}
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interface States {
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  activate: boolean;
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  deactivate: boolean;
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}
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export class IconButton extends PureComponent<Props, States> {
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  buttonRef = createRef<HTMLButtonElement>();
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  static defaultProps = {
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    active: false,
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    disabled: false,
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    animate: false,
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    overlay: false,
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    tabIndex: 0,
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    ariaHidden: false,
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  };
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  state = {
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    activate: false,
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    deactivate: false,
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  };
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  UNSAFE_componentWillReceiveProps(nextProps: Props) {
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    if (!nextProps.animate) return;
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    if (this.props.active && !nextProps.active) {
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      this.setState({ activate: false, deactivate: true });
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    } else if (!this.props.active && nextProps.active) {
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      this.setState({ activate: true, deactivate: false });
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    }
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  }
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  handleClick: React.MouseEventHandler<HTMLButtonElement> = (e) => {
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    e.preventDefault();
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    if (!this.props.disabled && this.props.onClick != null) {
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      this.props.onClick(e);
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    }
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  };
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  handleKeyPress: React.KeyboardEventHandler<HTMLButtonElement> = (e) => {
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    if (this.props.onKeyPress && !this.props.disabled) {
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      this.props.onKeyPress(e);
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    }
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  };
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  handleMouseDown: React.MouseEventHandler<HTMLButtonElement> = (e) => {
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    if (!this.props.disabled && this.props.onMouseDown) {
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      this.props.onMouseDown(e);
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    }
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  };
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  handleKeyDown: React.KeyboardEventHandler<HTMLButtonElement> = (e) => {
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    if (!this.props.disabled && this.props.onKeyDown) {
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      this.props.onKeyDown(e);
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    }
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  };
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  render() {
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    const style = {
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      ...this.props.style,
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      ...(this.props.active ? this.props.activeStyle : {}),
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    };
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    const {
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      active,
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      className,
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      disabled,
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      expanded,
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      icon,
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      iconComponent,
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      inverted,
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      overlay,
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      tabIndex,
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      title,
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      counter,
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      href,
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      ariaHidden,
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    } = this.props;
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    const { activate, deactivate } = this.state;
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    const classes = classNames(className, 'icon-button', {
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      active,
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      disabled,
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      inverted,
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      activate,
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      deactivate,
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      overlayed: overlay,
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      'icon-button--with-counter': typeof counter !== 'undefined',
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    });
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    let contents = (
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      <>
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        <Icon id={icon} icon={iconComponent} aria-hidden='true' />{' '}
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        {typeof counter !== 'undefined' && (
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          <span className='icon-button__counter'>
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            <AnimatedNumber value={counter} />
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          </span>
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        )}
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      </>
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    );
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    if (href != null) {
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      contents = (
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        <a href={href} target='_blank' rel='noopener noreferrer'>
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          {contents}
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        </a>
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      );
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    }
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    return (
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      <button
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        type='button'
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        aria-label={title}
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        aria-expanded={expanded}
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        aria-hidden={ariaHidden}
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        title={title}
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        className={classes}
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        onClick={this.handleClick}
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        onMouseDown={this.handleMouseDown}
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        onKeyDown={this.handleKeyDown}
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        onKeyPress={this.handleKeyPress}
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        style={style}
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        tabIndex={tabIndex}
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        disabled={disabled}
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        ref={this.buttonRef}
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      >
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        {contents}
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      </button>
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    );
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  }
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}
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