119 lines
3.6 KiB
JavaScript
119 lines
3.6 KiB
JavaScript
import EmbarkJS from 'Embark/EmbarkJS';
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import React from 'react';
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import {Alert, Form, FormGroup, FormControl, Button} from 'react-bootstrap';
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class Whisper extends React.Component {
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constructor (props) {
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super(props);
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this.state = {
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listenTo: '',
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channel: '',
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message: '',
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subscribedChannels: [],
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messageList: [],
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logs: []
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};
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}
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handleChange (e, name) {
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this.state[name] = e.target.value;
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this.setState(this.state);
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}
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sendMessage (e) {
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e.preventDefault();
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EmbarkJS.Messages.sendMessage({topic: this.state.channel, data: this.state.message});
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this.addToLog("EmbarkJS.Messages.sendMessage({topic: '" + this.state.channel + "', data: '" + this.state.message + "'})");
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}
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listenToChannel (e) {
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e.preventDefault();
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const subscribedChannels = this.state.subscribedChannels;
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subscribedChannels.push(<span>Subscribed to <b>{this.state.listenTo}</b>. Now try sending a message</span>);
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this.setState({
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subscribedChannels
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});
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EmbarkJS.Messages.listenTo({topic: [this.state.listenTo]}, (error, message) => {
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const messageList = this.state.messageList;
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if (error) {
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messageList.push(<span className="alert-danger">Error: {error}</span>);
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} else {
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messageList.push(<span>Channel: <b>{message.topic}</b> | Message: <b>{message.data}</b></span>);
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}
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this.setState({
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messageList
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});
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});
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this.addToLog("EmbarkJS.Messages.listenTo({topic: ['" + this.state.listenTo + "']}).then(function(message) {})");
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}
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addToLog (txt) {
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this.state.logs.push(txt);
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this.setState({logs: this.state.logs});
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}
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render () {
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return (
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<React.Fragment>
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{
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!this.props.enabled ?
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<React.Fragment>
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<Alert bsStyle="warning">The node you are using does not support Whisper</Alert>
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<Alert bsStyle="warning">The node uses an unsupported version of Whisper</Alert>
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</React.Fragment> : ''
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}
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<h3>Listen To channel</h3>
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<Form inline>
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<FormGroup>
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<FormControl
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type="text"
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defaultValue={this.state.listenTo}
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placeholder="channel"
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onChange={e => this.handleChange(e, 'listenTo')}/>
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<Button bsStyle="primary" onClick={(e) => this.listenToChannel(e)}>Start Listening</Button>
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<div id="subscribeList">
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{this.state.subscribedChannels.map((item, i) => <p key={i}>{item}</p>)}
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</div>
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<p>messages received:</p>
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<div id="messagesList">
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{this.state.messageList.map((item, i) => <p key={i}>{item}</p>)}
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</div>
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</FormGroup>
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</Form>
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<h3>Send Message</h3>
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<Form inline>
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<FormGroup>
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<FormControl
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type="text"
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defaultValue={this.state.channel}
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placeholder="channel"
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onChange={e => this.handleChange(e, 'channel')}/>
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<FormControl
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type="text"
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defaultValue={this.state.message}
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placeholder="message"
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onChange={e => this.handleChange(e, 'message')}/>
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<Button bsStyle="primary" onClick={(e) => this.sendMessage(e)}>Send Message</Button>
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</FormGroup>
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</Form>
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<p>Javascript calls being made: </p>
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<div className="logs">
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<p>EmbarkJS.Messages.setProvider('whisper')</p>
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{
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this.state.logs.map((item, i) => <p key={i}>{item}</p>)
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}
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</div>
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</React.Fragment>
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);
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}
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}
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export default Whisper;
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