104 lines
3.2 KiB
JavaScript
104 lines
3.2 KiB
JavaScript
import React from 'react';
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import ReactDOM from 'react-dom';
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import {Tabs, Tab} from 'react-bootstrap';
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import EmbarkJS from 'Embark/EmbarkJS';
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import Blockchain from './components/blockchain';
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import Whisper from './components/whisper';
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import Storage from './components/storage';
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import ENS from './components/ens';
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import './dapp.css';
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class App extends React.Component {
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constructor(props) {
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super(props);
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this.handleSelect = this.handleSelect.bind(this);
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this.state = {
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error: null,
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activeKey: 1,
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whisperEnabled: false,
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storageEnabled: false,
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blockchainEnabled: false
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};
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}
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componentDidMount() {
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EmbarkJS.onReady((err) => {
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this.setState({blockchainEnabled: true});
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if (err) {
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// If err is not null then it means something went wrong connecting to ethereum
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// you can use this to ask the user to enable metamask for e.g
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return this.setState({error: err.message || err});
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}
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if (EmbarkJS.isNewWeb3()) {
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EmbarkJS.Messages.Providers.whisper.getWhisperVersion((err, _version) => {
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if (err) {
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return console.log(err);
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}
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this.setState({whisperEnabled: true});
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});
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} else {
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if (EmbarkJS.Messages.providerName === 'whisper') {
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EmbarkJS.Messages.getWhisperVersion((err, _version) => {
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if (err) {
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return console.log(err);
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}
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this.setState({whisperEnabled: true});
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});
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}
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}
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EmbarkJS.Storage.isAvailable().then((result) => {
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this.setState({storageEnabled: result});
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}).catch(() => {
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this.setState({storageEnabled: false});
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});
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});
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}
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_renderStatus(title, available) {
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let className = available ? 'pull-right status-online' : 'pull-right status-offline';
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return <React.Fragment>
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{title}
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<span className={className}></span>
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</React.Fragment>;
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}
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handleSelect(key) {
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this.setState({ activeKey: key });
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}
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render() {
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const ensEnabled = EmbarkJS.Names.currentNameSystems && EmbarkJS.Names.isAvailable();
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if (this.state.error) {
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return (<div>
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<div>Something went wrong connecting to ethereum. Please make sure you have a node running or are using metamask to connect to the ethereum network:</div>
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<div>{this.state.error}</div>
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</div>);
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}
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return (<div>
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<h3>Embark - Usage Example</h3>
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<Tabs onSelect={this.handleSelect} activeKey={this.state.activeKey} id="uncontrolled-tab-example">
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<Tab eventKey={1} title={this._renderStatus('Blockchain', this.state.blockchainEnabled)}>
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<Blockchain/>
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</Tab>
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<Tab eventKey={2} title={this._renderStatus('Decentralized Storage', this.state.storageEnabled)}>
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<Storage enabled={this.state.storageEnabled}/>
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</Tab>
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<Tab eventKey={3} title={this._renderStatus('P2P communication (Whisper)', this.state.whisperEnabled)}>
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<Whisper enabled={this.state.whisperEnabled}/>
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</Tab>
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<Tab eventKey={4} title={this._renderStatus('Naming (ENS)', ensEnabled)}>
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<ENS enabled={ensEnabled}/>
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</Tab>
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</Tabs>
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</div>);
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}
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}
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ReactDOM.render(<App></App>, document.getElementById('app'));
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