163 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			163 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import React from 'react';
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import PropTypes from 'prop-types';
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import classNames from 'classnames';
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import Icon from 'mastodon/components/icon';
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import AnimatedNumber from 'mastodon/components/animated_number';
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export default class IconButton extends React.PureComponent {
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  static propTypes = {
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    className: PropTypes.string,
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    title: PropTypes.string.isRequired,
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    icon: PropTypes.string.isRequired,
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    onClick: PropTypes.func,
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    onMouseDown: PropTypes.func,
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    onKeyDown: PropTypes.func,
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    onKeyPress: PropTypes.func,
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    size: PropTypes.number,
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    active: PropTypes.bool,
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    pressed: PropTypes.bool,
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    expanded: PropTypes.bool,
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    style: PropTypes.object,
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    activeStyle: PropTypes.object,
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    disabled: PropTypes.bool,
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    inverted: PropTypes.bool,
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    animate: PropTypes.bool,
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    overlay: PropTypes.bool,
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    tabIndex: PropTypes.string,
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    counter: PropTypes.number,
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    obfuscateCount: PropTypes.bool,
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    href: PropTypes.string,
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  };
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  static defaultProps = {
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    size: 18,
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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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  };
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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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  componentWillReceiveProps (nextProps) {
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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 = (e) =>  {
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    e.preventDefault();
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    if (!this.props.disabled) {
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      this.props.onClick(e);
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    }
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  }
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  handleKeyPress = (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 = (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 = (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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      fontSize: `${this.props.size}px`,
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      width: `${this.props.size * 1.28571429}px`,
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      height: `${this.props.size * 1.28571429}px`,
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      lineHeight: `${this.props.size}px`,
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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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      inverted,
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      overlay,
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      pressed,
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      tabIndex,
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      title,
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      counter,
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      obfuscateCount,
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      href,
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    } = this.props;
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    const {
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      activate,
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      deactivate,
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    } = 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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    if (typeof counter !== 'undefined') {
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      style.width = 'auto';
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    }
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    let contents = (
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      <React.Fragment>
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        <Icon id={icon} fixedWidth aria-hidden='true' /> {typeof counter !== 'undefined' && <span className='icon-button__counter'><AnimatedNumber value={counter} obfuscate={obfuscateCount} /></span>}
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      </React.Fragment>
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    );
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    if (href) {
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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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        aria-label={title}
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        aria-pressed={pressed}
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        aria-expanded={expanded}
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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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      >
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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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