Last active
October 21, 2018 21:27
-
-
Save v1vendi/e075500ff1e6be582378a3c425f79837 to your computer and use it in GitHub Desktop.
React components for a page that does http request itself without redux
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<title>Parcel demo</title> | |
<!-- <link rel=stylesheet href=./style.css /> --> | |
<style> | |
body { | |
max-width: 500px; | |
margin: auto; | |
} | |
#modal_holder:empty { | |
display: none; | |
} | |
#modal_holder:not(:empty) { | |
position: absolute; | |
top: 0; | |
left: 0; | |
width: 100%; | |
height: 100%; | |
background: rgba(0,0,0,.3); | |
display: flex; | |
justify-content: center; | |
flex-direction: column; | |
align-items: center; | |
} | |
#modal_holder .dialog { | |
background: white; | |
border: 1px solid #333; | |
padding: 2em; | |
} | |
li { | |
margin: 5px 0; | |
list-style-type: none; | |
} | |
button { | |
margin-left: 1em; | |
} | |
</style> | |
<h1>Some page</h1> | |
<main id=main></main> | |
<div id=modal_holder></div> | |
<script src=./index.js /> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import '@babel/polyfill' | |
import React from 'react' | |
import ReactDOM from 'react-dom' | |
async function sleep(ms) { | |
return new Promise(resolve => setTimeout(resolve, ms)) | |
} | |
const SomeAPI = { | |
async fetch() { | |
await sleep(3000) | |
// throw <span>{'Error while fetching'}</span> | |
return [{ | |
name: 'Item X', | |
id: 'x_id', | |
}, { | |
name: 'Item Y', | |
id: 'y_id', | |
}] | |
}, | |
async post(id, param=null) { | |
await sleep(3000) | |
throw ( | |
<span> | |
Error while posting for <b>{id}</b> | |
</span> | |
) | |
let message = `called post action for ${id}` | |
if (param) message += ` with param ${param}` | |
console.log(message) | |
} | |
} | |
class SomeComponent extends React.Component { | |
state = { | |
loading: false, | |
error: false, | |
data: [], | |
} | |
componentDidMount() { | |
this.load() | |
} | |
async load() { | |
this.setState({ | |
loading: true, | |
}) | |
try { | |
const data = await SomeAPI.fetch() | |
this.setState({ | |
loading: false, | |
data, | |
}) | |
} catch(error) { | |
this.setState({ | |
loading: false, | |
error | |
}) | |
} | |
} | |
renderItem(item) { | |
return ( | |
<li key={item.id}> | |
{item.name} | |
<ActionButton {...item} /> | |
</li> | |
) | |
} | |
render() { | |
if (this.state.loading) return 'Fetching data' | |
if (this.state.error) return this.state.error | |
return ( | |
<ul> | |
{this.state.data.map(this.renderItem)} | |
</ul> | |
) | |
} | |
} | |
class ActionButton extends React.Component { | |
state = { | |
loading: false, | |
} | |
async handleClick() { | |
this.setState({ | |
loading: true | |
}) | |
try { | |
let result | |
// result = await ModalManager.render(ConfirmationModal, this.props) // ConfirmationModal, FormModal | |
await SomeAPI.post(this.props.id, result) | |
} catch (error) { | |
this.setState({ | |
error, | |
}) | |
// await ModalManager.render(ErrorModal, { | |
// message: reason | |
// }) | |
} finally { | |
this.setState({ | |
loading: false, | |
}) | |
ModalManager.close() | |
} | |
} | |
render() { | |
let body = `Post for ${this.props.id}` | |
if (this.state.loading) body = `Posting for ${this.props.name}...` | |
if (this.state.error) body = this.state.error | |
return ( | |
<button onClick={() => this.handleClick()} disabled={this.state.loading || this.state.error}> | |
{body} | |
</button> | |
) | |
} | |
} | |
class ConfirmationModal extends React.Component { | |
state = { | |
loading: false | |
} | |
submit() { | |
this.setState({ | |
loading: true, | |
}) | |
this.props.onSubmit() | |
} | |
decline() { | |
this.props.onDecline('You did not want to') | |
} | |
render() { | |
return ( | |
<div> | |
<h1>Do some action with {this.props.name}?</h1> | |
<footer> | |
<button onClick={() => this.submit()}> | |
{this.state.loading ? 'Posting...' : 'Submit'} | |
</button> | |
<button onClick={() => this.decline()}> | |
Cancel | |
</button> | |
</footer> | |
</div> | |
) | |
} | |
} | |
class FormModal extends React.Component { | |
state = { | |
...ConfirmationModal.state, | |
value: '', | |
} | |
submit() { | |
this.setState({ | |
loading: true, | |
}) | |
this.props.onSubmit(this.state.value) | |
} | |
decline() { | |
this.props.onDecline('You did not want to') | |
} | |
render() { | |
return ( | |
<div> | |
<h1>Do some action with {this.props.name}</h1> | |
<label>Set some param:</label> | |
| |
<input | |
value={this.state.value} | |
onChange={evt => this.setState({ value: evt.target.value })} | |
/> | |
<button onClick={() => this.submit()}> | |
{this.state.loading ? 'Posting...' : 'Submit'} | |
</button> | |
<button onClick={() => this.decline()}> | |
Cancel | |
</button> | |
</div> | |
) | |
} | |
} | |
class ErrorModal extends React.Component { | |
render() { | |
return ( | |
<div> | |
<p>{this.props.message}</p> | |
<button onClick={this.props.onSubmit}> | |
Close | |
</button> | |
</div> | |
) | |
} | |
} | |
const ModalManager = { | |
render(Component, props) { | |
return new Promise((resolve, reject) => { | |
const modal = ( | |
<div className='dialog'> | |
<Component | |
{...props} | |
onSubmit={resolve} | |
onDecline={reject} | |
/> | |
</div> | |
) | |
ReactDOM.render(modal, document.getElementById('modal_holder')) | |
}) | |
}, | |
close() { | |
ReactDOM.render(null, document.getElementById('modal_holder')) | |
} | |
} | |
ReactDOM.render( | |
<SomeComponent />, | |
document.getElementById('main') | |
) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
{ | |
"main": "index.html", | |
"scripts": { | |
"start": "parcel index.html" | |
}, | |
"author": "i_komsa@wargaming.net", | |
"babel": { | |
"presets": [ | |
"@babel/env", | |
"@babel/preset-react" | |
], | |
"plugins": [ | |
"@babel/plugin-proposal-class-properties" | |
] | |
}, | |
"browserslist": ["chrome 68"], | |
"dependencies": { | |
"@babel/cli": "^7.1.0", | |
"@babel/core": "^7.1.0", | |
"@babel/plugin-proposal-class-properties": "^7.1.0", | |
"@babel/polyfill": "^7.0.0", | |
"@babel/preset-env": "^7.1.0", | |
"@babel/preset-react": "^7.0.0", | |
"parcel-bundler": "^1.10.1", | |
"babel-plugin-async-to-promises": "^1.0.5", | |
"react": "^16.5.2", | |
"react-dom": "^16.5.2" | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment