102 lines
2.3 KiB
JavaScript
102 lines
2.3 KiB
JavaScript
import React, { Component } from 'react';
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import GenericTouchable, { TOUCHABLE_STATE } from './GenericTouchable';
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import { StyleSheet, View } from 'react-native';
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import PropTypes from 'prop-types';
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/**
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* TouchableHighlight follows RN's implementation
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*/
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export default class TouchableHighlight extends Component {
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static defaultProps = {
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...GenericTouchable.defaultProps,
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activeOpacity: 0.85,
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delayPressOut: 100,
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underlayColor: 'black',
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};
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static propTypes = {
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...GenericTouchable.publicPropTypes,
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activeOpacity: PropTypes.number,
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underlayColor: PropTypes.string,
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style: PropTypes.any,
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onShowUnderlay: PropTypes.func,
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onHideUnderlay: PropTypes.func,
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};
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constructor(props) {
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super(props);
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this.state = {
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extraChildStyle: null,
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extraUnderlayStyle: null,
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};
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}
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// Copied from RN
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showUnderlay = () => {
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if (!this.hasPressHandler()) {
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return;
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}
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this.setState({
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extraChildStyle: {
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opacity: this.props.activeOpacity,
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},
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extraUnderlayStyle: {
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backgroundColor: this.props.underlayColor,
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},
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});
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this.props.onShowUnderlay && this.props.onShowUnderlay();
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};
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hasPressHandler = () =>
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this.props.onPress ||
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this.props.onPressIn ||
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this.props.onPressOut ||
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this.props.onLongPress;
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hideUnderlay = () => {
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this.setState({
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extraChildStyle: null,
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extraUnderlayStyle: null,
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});
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this.props.onHideUnderlay && this.props.onHideUnderlay();
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};
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renderChildren() {
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if (!this.props.children) {
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return <View />;
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}
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const child = React.Children.only(this.props.children);
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return React.cloneElement(child, {
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style: StyleSheet.compose(
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child.props.style,
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this.state.extraChildStyle
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),
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});
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}
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onStateChange = (from, to) => {
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if (to === TOUCHABLE_STATE.BEGAN) {
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this.showUnderlay();
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} else if (
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to === TOUCHABLE_STATE.UNDETERMINED ||
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to === TOUCHABLE_STATE.MOVED_OUTSIDE
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) {
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this.hideUnderlay();
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}
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};
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render() {
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const { style = {}, ...rest } = this.props;
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const { extraUnderlayStyle } = this.state;
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return (
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<GenericTouchable
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{...rest}
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style={[style, extraUnderlayStyle]}
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onStateChange={this.onStateChange}>
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{this.renderChildren()}
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</GenericTouchable>
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);
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}
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}
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