93 lines
2.5 KiB
JavaScript
93 lines
2.5 KiB
JavaScript
const url = require('url')
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const EventEmitter = require('events').EventEmitter
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const async = require('async')
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const Multiplex = require('multiplex')
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const Dnode = require('dnode')
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const Web3 = require('web3')
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const MetaMaskUi = require('metamask-ui')
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const MetaMaskUiCss = require('metamask-ui/css')
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const injectCss = require('inject-css')
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const PortStream = require('./lib/port-stream.js')
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const StreamProvider = require('./lib/stream-provider.js')
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// setup app
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var css = MetaMaskUiCss()
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injectCss(css)
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async.parallel({
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currentDomain: getCurrentDomain,
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accountManager: connectToAccountManager,
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}, setupApp)
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function connectToAccountManager(cb){
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// setup communication with background
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var pluginPort = chrome.runtime.connect({name: 'popup'})
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var portStream = new PortStream(pluginPort)
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// setup multiplexing
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var mx = Multiplex()
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portStream.pipe(mx).pipe(portStream)
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mx.on('error', function(err) {
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console.error(err)
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portStream.destroy()
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})
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portStream.on('error', function(err) {
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console.error(err)
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mx.destroy()
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})
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var dnodeStream = mx.createSharedStream('dnode')
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var providerStream = mx.createSharedStream('provider')
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linkDnode(dnodeStream, cb)
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linkWeb3(providerStream)
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}
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function linkWeb3(stream){
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var remoteProvider = new StreamProvider()
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remoteProvider.pipe(stream).pipe(remoteProvider)
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stream.on('error', console.error.bind(console))
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remoteProvider.on('error', console.error.bind(console))
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global.web3 = new Web3(remoteProvider)
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}
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function linkDnode(stream, cb){
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var eventEmitter = new EventEmitter()
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var background = Dnode({
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sendUpdate: function(state){
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eventEmitter.emit('update', state)
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},
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})
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stream.pipe(background).pipe(stream)
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background.once('remote', function(accountManager){
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// setup push events
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accountManager.on = eventEmitter.on.bind(eventEmitter)
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cb(null, accountManager)
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})
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}
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function getCurrentDomain(cb){
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chrome.tabs.query({active: true, currentWindow: true}, function(results){
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var activeTab = results[0]
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var currentUrl = activeTab && activeTab.url
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var currentDomain = url.parse(currentUrl).host
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if (!currentUrl) {
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return cb(null, '<unknown>')
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}
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cb(null, currentDomain)
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})
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}
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function setupApp(err, opts){
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if (err) {
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alert(err.stack)
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throw err
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return
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}
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var container = document.getElementById('app-content')
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var app = MetaMaskUi({
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container: container,
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accountManager: opts.accountManager,
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currentDomain: opts.currentDomain,
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})
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} |