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React 清除浏览器记住密码框组件

最近项目中有一个需求:清除浏览器记住密码。故写了这么个组件。

import React from 'react';
import { Input } from 'antd';
class PasswordInput extends React.Component {
static getDerivedStateFromProps(nextProps) {
if ('value' in nextProps) {
return {
...(nextProps.value || {}),
};
}
return null;
}
constructor(props) {
super(props);
const value = props.value;
this.state = {
showValue: value,
value,
};
}
componentWillReceiveProps(newProps) {
if (newProps.value === '') {
this.setState({ value: '', showValue: '' });
}
}
handleChange = (e) => {
let newValue;
const value = e.target.value;
const currValue = value[value.length - 1]; // 当前值
const showValue = new Array(value.length + 1).join('*');
const oldValue = this.state.value;
if (currValue !== '*') {
newValue = oldValue.substr(0, showValue.length - 1) + currValue;
} else {
newValue = oldValue.substr(0, showValue.length);
}
this.setState({ value: newValue, showValue });
this.triggerChange(newValue);
}
triggerChange = (changedValue) => {
const onChange = this.props.onChange;
if (onChange) {
onChange(changedValue);
}
}
render() {
return (<span>
<Input
value={this.state.showValue}
type="text"
onChange={this.handleChange}
/>
</span>);
}
}
export default PasswordInput;

 

炫意HTML5 » React 清除浏览器记住密码框组件

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