75 lines
1.4 KiB
JavaScript
75 lines
1.4 KiB
JavaScript
import React from 'react';
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import PropTypes from 'prop-types';
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import { Animated } from 'react-native';
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export default class MessageBox extends React.PureComponent {
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static propTypes = {
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subview: PropTypes.object.isRequired,
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visible: PropTypes.bool.isRequired,
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messageboxHeight: PropTypes.number.isRequired
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}
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constructor(props) {
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super(props);
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this.animatedBottom = new Animated.Value(0);
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this.state = { render: false };
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}
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componentWillReceiveProps(nextProps) {
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if (this.props.visible === nextProps.visible) {
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return;
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}
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if (nextProps.visible) {
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return this.show();
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}
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this.hide();
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}
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show() {
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this.setState({ render: true });
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this.animatedBottom.setValue(0);
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Animated.timing(this.animatedBottom, {
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toValue: 1,
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duration: 300,
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useNativeDriver: true
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}).start();
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}
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hide() {
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Animated.timing(this.animatedBottom, {
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toValue: 0,
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duration: 300,
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useNativeDriver: true
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}).start();
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setTimeout(() => {
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this.setState({ render: false });
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}, 300);
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}
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render() {
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const bottom = this.animatedBottom.interpolate({
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inputRange: [0, 1],
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outputRange: [0, -this.props.messageboxHeight - 200]
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});
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if (!this.state.render) {
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return null;
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}
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return (
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<Animated.View
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style={{
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position: 'absolute',
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left: 0,
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right: 0,
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bottom: -200,
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zIndex: 1,
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transform: [{ translateY: bottom }]
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}}
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>
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{this.props.subview}
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</Animated.View>
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);
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}
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}
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