simple token UI

This commit is contained in:
Ricardo Guilherme Schmidt 2018-05-13 01:31:01 -03:00
parent 611649fbd7
commit 62bf93868c
5 changed files with 333 additions and 0 deletions

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import EmbarkJS from 'Embark/EmbarkJS';
import ERC20Token from 'Embark/contracts/ERC20Token';
import React from 'react';
import { Form, FormGroup, FormControl, HelpBlock, Button } from 'react-bootstrap';
class ERC20TokenUI extends React.Component {
constructor(props) {
super(props);
this.state = {
balanceOf: 0,
transferTo: "",
transferAmount: 0,
logs: []
}
}
contractAddress(e){
e.preventDefault();
var tokenAddress = e.target.value;
ERC20Token.options.address = tokenAddress;
}
update_transferTo(e){
this.setState({transferTo: e.target.value});
}
update_transferAmount(e){
this.setState({transferAmount: e.target.value});
}
transfer(e){
var to = this.state.transferTo;
var amount = this.state.transferAmount;
var tx = ERC20Token.methods.transfer(to, amount).send({from: web3.eth.defaultAccount});
this._addToLog(ERC20Token.options.address+".transfer(" + to + ", "+amount+")");
}
approve(e){
var to = this.state.transferTo;
var amount = this.state.transferAmount;
var tx = ERC20Token.methods.approve(to, amount).send({from: web3.eth.defaultAccount});
this._addToLog(ERC20Token.options.address+".approve(" + to + ", "+amount+")");
}
balanceOf(e){
e.preventDefault();
var who = e.target.value;
if (EmbarkJS.isNewWeb3()) {
ERC20Token.methods.balanceOf(who).call()
.then(_value => this.setState({balanceOf: _value}))
} else {
ERC20Token.balanceOf(who)
.then(_value => this.x({balanceOf: _value}));
}
this._addToLog(ERC20Token.options.address+".balanceOf(" + who + ")");
}
_addToLog(txt){
this.state.logs.push(txt);
this.setState({logs: this.state.logs});
}
render(){
return (<React.Fragment>
<h2> Set token contract address</h2>
<Form inline>
<FormGroup>
<FormControl
type="text"
onChange={(e) => this.contractAddress(e)} />
</FormGroup>
</Form>
<h3> Read account token balance</h3>
<Form inline>
<FormGroup>
<label>
Of:
<FormControl
type="text"
defaultValue={this.state.accountB}
onChange={(e) => this.balanceOf(e)} />
</label>
<label>
<HelpBlock><span className="balanceOf">{this.state.balanceOf}</span></HelpBlock>
</label>
</FormGroup>
</Form>
<h3> Transfer/Approve token balance</h3>
<Form inline>
<FormGroup>
<label>
To:
<FormControl
type="text"
defaultValue={this.state.transferTo}
onChange={(e) => this.update_transferTo(e) } />
</label>
<label>
Amount:
<FormControl
type="text"
defaultValue={this.state.transferAmount}
onChange={(e) => this.update_transferAmount(e) } />
</label>
<Button bsStyle="primary" onClick={(e) => this.transfer(e)}>Transfer</Button>
<Button bsStyle="primary" onClick={(e) => this.approve(e)}>Approve</Button>
</FormGroup>
</Form>
<h3> Contract Calls </h3>
<p>Javascript calls being made: </p>
<div className="logs">
{
this.state.logs.map((item, i) => <p key={i}>{item}</p>)
}
</div>
</React.Fragment>
);
}
}
export default ERC20TokenUI;

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import EmbarkJS from 'Embark/EmbarkJS';
import TestToken from 'Embark/contracts/TestToken';
import React from 'react';
import { Form, FormGroup, FormControl, HelpBlock, Button } from 'react-bootstrap';
class TestTokenUI extends React.Component {
constructor(props) {
super(props);
this.state = {
amountToMint: 100,
accountBalance: 0,
accountB: web3.eth.defaultAccount,
balanceOf: 0,
logs: []
}
}
handleMintAmountChange(e){
this.setState({amountToMint: e.target.value});
}
mint(e){
e.preventDefault();
var value = parseInt(this.state.amountToMint, 10);
// If web3.js 1.0 is being used
if (EmbarkJS.isNewWeb3()) {
TestToken.methods.mint(value).send({from: web3.eth.defaultAccount});
this._addToLog("TestToken.methods.mint("+value+").send({from: " + web3.eth.defaultAccount + "})");
} else {
TestToken.mint(value);
this._addToLog("#blockchain", "TestToken.mint(" + value + ")");
}
}
getBalance(e){
e.preventDefault();
if (EmbarkJS.isNewWeb3()) {
TestToken.methods.balanceOf(web3.eth.defaultAccount).call()
.then(_value => this.setState({accountBalance: _value}))
} else {
TestToken.balanceOf(web3.eth.defaultAccount)
.then(_value => this.x({valueGet: _value}))
}
this._addToLog(TestToken.options.address + ".balanceOf(" + web3.eth.defaultAccount + ")");
}
_addToLog(txt){
this.state.logs.push(txt);
this.setState({logs: this.state.logs});
}
render(){
return (<React.Fragment>
<h3> 1. Mint Test Token</h3>
<Form inline>
<FormGroup>
<FormControl
type="text"
defaultValue={this.state.amountToMint}
onChange={(e) => this.handleMintAmountChange(e)} />
<Button bsStyle="primary" onClick={(e) => this.mint(e)}>Mint</Button>
</FormGroup>
</Form>
<h3> 2. Read your account token balance </h3>
<Form inline>
<FormGroup>
<HelpBlock>Your test token balance is <span className="accountBalance">{this.state.accountBalance}</span></HelpBlock>
<Button bsStyle="primary" onClick={(e) => this.getBalance(e)}>Get Balance</Button>
</FormGroup>
</Form>
<h3> 3. Contract Calls </h3>
<p>Javascript calls being made: </p>
<div className="logs">
{
this.state.logs.map((item, i) => <p key={i}>{item}</p>)
}
</div>
</React.Fragment>
);
}
}
export default TestTokenUI;

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app/dapp.css Normal file
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div {
margin: 15px;
}
.logs {
background-color: black;
font-size: 14px;
color: white;
font-weight: bold;
padding: 10px;
border-radius: 8px;
}
.tab-content {
border-left: 1px solid #ddd;
border-right: 1px solid #ddd;
border-bottom: 1px solid #ddd;
padding: 10px;
margin: 0px;
}
.nav-tabs {
margin-bottom: 0;
}
.status-offline {
vertical-align: middle;
margin-left: 5px;
margin-top: 4px;
width: 12px;
height: 12px;
background: red;
-moz-border-radius: 10px;
-webkit-border-radius: 10px;
border-radius: 10px;
}
.status-online {
vertical-align: middle;
margin-left: 5px;
margin-top: 4px;
width: 12px;
height: 12px;
background: mediumseagreen;
-moz-border-radius: 10px;
-webkit-border-radius: 10px;
border-radius: 10px;
}
input.form-control {
margin: 5px;
}

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app/dapp.js Normal file
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import React from 'react';
import ReactDOM from 'react-dom';
import { Tabs, Tab } from 'react-bootstrap';
import EmbarkJS from 'Embark/EmbarkJS';
import TestTokenUI from './components/testtoken';
import ERC20TokenUI from './components/erc20token';
import './dapp.css';
class App extends React.Component {
constructor(props) {
super(props);
}
componentDidMount(){
__embarkContext.execWhenReady(() => {
});
}
_renderStatus(title, available){
let className = available ? 'pull-right status-online' : 'pull-right status-offline';
return <React.Fragment>
{title}
<span className={className}></span>
</React.Fragment>;
}
render(){
return (<div><h3>Status.im Contracts</h3>
<Tabs defaultActiveKey={1} id="uncontrolled-tab-example">
<Tab eventKey={1} title="TestToken">
<TestTokenUI />
</Tab>
<Tab eventKey={2} title="ERC20Token">
<ERC20TokenUI />
</Tab>
</Tabs>
</div>);
}
}
ReactDOM.render(<App></App>, document.getElementById('app'));

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app/index.html Normal file
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<html>
<head>
<title>Status.im - Contracts</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body class="container">
<div id="app">
</div>
<script src="js/dapp.js"></script>
</body>
</html>