react-native-svg/elements/Pattern.js

import React, { Component } from "react";
import PropTypes from 'prop-types';
import { requireNativeComponent } from "react-native";
import { numberProp } from '../lib/props';
import PATTERN_UNITS from '../lib/PATTERN_UNITS';
import { PatternAttributes } from '../lib/attributes';
import extractTransform from '../lib/extract/extractTransform';
import extractViewBox from "react-native-svg/lib/extract/extractViewBox";

export default class extends Component {
    static displayName = 'Pattern';
    static propTypes = {
        id: PropTypes.string.isRequired,
        x: numberProp,
        y: numberProp,
        width: numberProp,
        height: numberProp,
        patternTransform: PropTypes.string,
        patternUnits: PropTypes.oneOf(['userSpaceOnUse', 'objectBoundingBox']),
        patternContentUnits: PropTypes.oneOf([
            'userSpaceOnUse',
            'objectBoundingBox',
        ]),
        viewBox: PropTypes.string,
        preserveAspectRatio: PropTypes.string
    };

    render() {
        const { props } = this;
        const {
            patternTransform,
            transform,
            id,
            x,
            y,
            width,
            height,
            patternUnits,
            patternContentUnits,
            children,
            viewBox,
            preserveAspectRatio,
        } = props;

        let extractedTransform;
        if (patternTransform) {
            extractedTransform = extractTransform(patternTransform);
        } else if (transform) {
            extractedTransform = extractTransform(transform);
        } else {
            extractedTransform = extractTransform(props);
        }

        return (
            <RNSVGPattern
                name={id}
                x={`${x}`}
                y={`${y}`}
                patternwidth={`${width}`}
                patternheight={`${height}`}
                matrix={extractedTransform}
                patternTransform={extractedTransform}
                patternUnits={PATTERN_UNITS[patternUnits] || 0}
                patternContentUnits={patternContentUnits ? PATTERN_UNITS[patternContentUnits] : 1}
                {...extractViewBox({ viewBox, preserveAspectRatio })}
            >
                {children}
            </RNSVGPattern>
        );
    }
}

const RNSVGPattern = requireNativeComponent('RNSVGPattern', null, {
    nativeOnly: PatternAttributes,
});