124 lines
3.3 KiB
JavaScript
124 lines
3.3 KiB
JavaScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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import PropTypes from 'prop-types';
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import React from 'react';
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import {TextInput} from 'react-native';
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// A component that can be used to make partially-controlled inputs that can be updated
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// by changing the value prop without lagging the UI.
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//
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// We're using this in place of a connected TextInput due to changes made in RN v0.54
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// that break input in Chinese and Japanese when using a connected TextInput. See
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// https://github.com/facebook/react-native/issues/18403 for more information.
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//
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// In addition to that, there's also an ugly hack to change the key on the TextInput
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// when this is triggered because that same version made setNativeProps work inconsistently.
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// See https://github.com/facebook/react-native/issues/18272 for more information on that.
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export default class QuickTextInput extends React.PureComponent {
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static propTypes = {
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onChangeText: PropTypes.func,
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/**
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* The string value displayed in this input
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*/
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value: PropTypes.string.isRequired,
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};
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static defaultProps = {
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delayInputUpdate: false,
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value: '',
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};
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constructor(props) {
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super(props);
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this.storedValue = props.value;
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this.state = {
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key: 0,
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};
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}
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componentDidMount() {
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this.updateInputFromProps();
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}
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UNSAFE_componentWillReceiveProps(nextProps) { // eslint-disable-line camelcase
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// This will force the base TextInput to re-render if the value is changing
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// from something other than the user typing in it. This does however cause
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// the TextInput to flicker when this happens.
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if (nextProps.value !== this.storedValue) {
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this.setState({
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key: this.state.key + 1,
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});
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}
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this.hadFocus = this.input.isFocused();
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}
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componentDidUpdate(prevProps, prevState) {
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if (this.props.value !== this.storedValue) {
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this.updateInputFromProps();
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}
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if (prevState.key !== this.state.key && this.hadFocus) {
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this.input.focus();
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}
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}
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updateInputFromProps = () => {
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if (!this.input) {
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return;
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}
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this.input.setNativeProps({text: this.props.value});
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this.storedValue = this.props.value;
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}
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setNativeProps(nativeProps) {
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this.input.setNativeProps(nativeProps);
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}
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isFocused() {
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return this.input.isFocused();
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}
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focus() {
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this.input.focus();
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}
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blur() {
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this.input.blur();
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}
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handleChangeText = (value) => {
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this.storedValue = value;
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if (this.props.onChangeText) {
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this.props.onChangeText(value);
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}
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}
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setInput = (input) => {
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this.input = input;
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}
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render() {
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const props = {...this.props};
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// Specifying a value or defaultValue cause the issues noted above
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Reflect.deleteProperty(props, 'value');
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Reflect.deleteProperty(props, 'defaultValue');
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return (
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<TextInput
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{...props}
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key={this.state.key}
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onChangeText={this.handleChangeText}
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ref={this.setInput}
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/>
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);
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}
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}
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