react-native-vector-icons/lib/icon-button.js

import isString from 'lodash/isString';
import omit from 'lodash/omit';
import pick from 'lodash/pick';

import React, {
  Component,
} from 'react';

import PropTypes from 'prop-types';

import {
  StyleSheet,
  Text,
  TouchableHighlight,
  View,
} from './react-native';

const styles = StyleSheet.create({
  container: {
    flexDirection: 'row',
    justifyContent: 'flex-start',
    alignItems: 'center',
    padding: 8,
  },
  touchable: {
    overflow: 'hidden',
  },
  icon: {
    marginRight: 10,
  },
  text: {
    fontWeight: '600',
    backgroundColor: 'transparent',
  },
});

const IOS7_BLUE = '#007AFF';

export default function createIconButtonComponent(Icon) {
  return class IconButton extends Component {
    static propTypes = {
      ...View.propTypes,
      backgroundColor: PropTypes.string,
      borderRadius: PropTypes.number,
      color: PropTypes.string,
      size: PropTypes.number,
    };

    static defaultProps = {
      backgroundColor: IOS7_BLUE,
      borderRadius: 5,
      color: 'white',
      size: 20,
    };

    render() {
      const { style, iconStyle, children, ...restProps } = this.props;

      const iconProps = pick(restProps, Object.keys(Text.propTypes), 'style', 'name', 'size', 'color');
      const touchableProps = pick(restProps, Object.keys(TouchableHighlight.propTypes));
      const props = omit(
        restProps,
        Object.keys(iconProps),
        Object.keys(touchableProps),
        'iconStyle',
        'borderRadius',
        'backgroundColor',
      );
      iconProps.style = (iconStyle ? [styles.icon, iconStyle] : styles.icon);

      const colorStyle = pick(this.props, 'color');
      const blockStyle = pick(this.props, 'backgroundColor', 'borderRadius');

      return (
        <TouchableHighlight style={[styles.touchable, blockStyle]} {...touchableProps}>
          <View
            style={[styles.container, blockStyle, style]}
            {...props}
          >
            <Icon {...iconProps} />
            {isString(children)
              ? (<Text style={[styles.text, colorStyle]}>{children}</Text>)
              : children
            }
          </View>
        </TouchableHighlight>
      );
    }
  };
}