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战友
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,22 +1,15 @@ | ||
| import * as React from 'react'; | ||
| import './App.css'; | ||
| import * as React from 'react' | ||
|
|
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| const logo = require('./logo.svg'); | ||
| import { Password } from './components/password' | ||
|
|
||
| class App extends React.Component<{}, null> { | ||
| render() { | ||
| return ( | ||
| <div className="App"> | ||
| <div className="App-header"> | ||
| <img src={logo} className="App-logo" alt="logo" /> | ||
| <h2>Welcome to React</h2> | ||
| </div> | ||
| <p className="App-intro"> | ||
| To get started, edit <code>src/App.tsx</code> and save to reload. | ||
| </p> | ||
| <div className='App'> | ||
| <Password passwordLength={6} /> | ||
| </div> | ||
| ); | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| export default App; | ||
| export default App |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| export * from './password.component' |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| .password-component | ||
|
|
||
| .item | ||
| width: 48px | ||
| height: 48px | ||
| border: 1px solid #666666 | ||
| border-radius: 4px | ||
| text-align center | ||
| margin: 10px | ||
| font-size: 30px | ||
| color: transparent | ||
| text-shadow: 0 0 0 black | ||
|
|
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| &::selection { | ||
| background: transparent | ||
| } | ||
|
|
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| &::-moz-selection { | ||
| background: transparent | ||
| } | ||
|
|
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| &::-webkit-selection { | ||
| background: transparent | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| import * as React from 'react' | ||
| import './password.component.styl' | ||
|
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| interface PasswordProps { | ||
| passwordLength: number | ||
| onConfirm?: (password: string) => void | ||
| } | ||
|
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| interface PasswordState { | ||
| valueArr: string[] | ||
| } | ||
|
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| export class Password extends React.Component<PasswordProps, PasswordState> { | ||
| private refArr: React.Ref<HTMLInputElement> | never[] = [] | ||
| private index: number = 0 | ||
|
|
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| constructor(props: any) { | ||
| super(props) | ||
| this.state = { | ||
| valueArr: [] | ||
| } | ||
| } | ||
|
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| componentDidMount() { | ||
| this.refArr[this.index].focus() | ||
| } | ||
|
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| handleChange = (e: React.ChangeEvent<HTMLInputElement>) => { | ||
| const { passwordLength } = this.props | ||
| const { valueArr } = this.state | ||
| const isNumber = /^[0-9]*$/ | ||
| const value = e.target.value | ||
| if (isNumber.test(value) && parseInt(value, 10) >= 0) { | ||
| valueArr[this.index] = value | ||
| if (value.length === 1 && this.index < passwordLength - 1) { | ||
| this.refArr[++this.index].focus() | ||
| } | ||
| } else { | ||
| valueArr[this.index] = '' | ||
| } | ||
| this.setState({ | ||
| ...this.state, | ||
| valueArr | ||
| }) | ||
|
|
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| const password = this.checkPassword(valueArr) | ||
| if (password) { | ||
| const { onConfirm } = this.props | ||
| if (onConfirm) { | ||
| onConfirm(password) | ||
| } | ||
| } | ||
| } | ||
|
|
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| checkPassword(valueArr: string[]) { | ||
| const { passwordLength } = this.props | ||
| let password = '' | ||
| if (valueArr.length < passwordLength) { | ||
| return false | ||
| } | ||
| valueArr.map((item) => { | ||
| if (item !== '') { | ||
| password += item | ||
| } | ||
| }) | ||
| if (password.length < length) { | ||
| return false | ||
| } | ||
| return password | ||
| } | ||
|
|
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| handlePress = (target: any) => { | ||
| const { passwordLength } = this.props | ||
| switch (target.keyCode) { | ||
| case 8: | ||
| // 返回 | ||
| const value = target.target.value | ||
| if (value === '' && this.index > 0) { | ||
| this.refArr[--this.index].focus() | ||
| } | ||
| break | ||
| case 37: | ||
| // 左移 | ||
| if (this.index > 0) { | ||
| this.refArr[--this.index].focus() | ||
| } else { | ||
| this.refArr[passwordLength - 1].focus() | ||
| this.index = passwordLength - 1 | ||
| } | ||
| break | ||
| case 39: | ||
| // 右移 | ||
| if (this.index < passwordLength - 1) { | ||
| this.refArr[++this.index].focus() | ||
| } else { | ||
| this.refArr[0].focus() | ||
| this.index = 0 | ||
| } | ||
| break | ||
| default: | ||
| break | ||
| } | ||
| } | ||
|
|
||
| handelFocus = (i: number) => { | ||
| this.index = i | ||
| this.refArr[i].select() | ||
| } | ||
|
|
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| setRef(index: number, ref: any) { | ||
| this.refArr[index] = ref | ||
| } | ||
|
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| render() { | ||
| const { passwordLength } = this.props | ||
| const { valueArr } = this.state | ||
| const inputs: JSX.Element[] = [] | ||
| for (let i = 0; i < passwordLength; i++) { | ||
| inputs.push( | ||
| <input | ||
| key={i} | ||
| ref={this.setRef.bind(this, i)} | ||
| className='item' | ||
| type='text' | ||
| maxLength={1} | ||
| onChange={this.handleChange} | ||
| onKeyUp={this.handlePress} | ||
| onFocus={this.handelFocus.bind(this, i)} | ||
| value={valueArr[i]} | ||
| /> | ||
| ) | ||
| } | ||
| return( | ||
| <div className='password-component'> | ||
| {inputs} | ||
| </div> | ||
| ) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,11 +1,11 @@ | ||
| import * as React from 'react'; | ||
| import * as ReactDOM from 'react-dom'; | ||
| import App from './App'; | ||
| import registerServiceWorker from './registerServiceWorker'; | ||
| import './index.css'; | ||
| import * as React from 'react' | ||
| import * as ReactDOM from 'react-dom' | ||
| import App from './App' | ||
| import registerServiceWorker from './registerServiceWorker' | ||
| import './index.css' | ||
|
|
||
| ReactDOM.render( | ||
| <App />, | ||
| document.getElementById('root') as HTMLElement | ||
| ); | ||
| registerServiceWorker(); | ||
| ) | ||
| registerServiceWorker() |
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