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const url = require('url')
const EventEmitter = require('events').EventEmitter
const async = require('async')
const Dnode = require('dnode')
const Web3 = require('web3')
const MetaMaskUi = require('../../ui')
const MetaMaskUiCss = require('../../ui/css')
const injectCss = require('inject-css')
const PortStream = require('./lib/port-stream.js')
const StreamProvider = require('web3-stream-provider')
const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
// setup app
var css = MetaMaskUiCss()
injectCss(css)
async.parallel({
currentDomain: getCurrentDomain,
accountManager: connectToAccountManager,
}, setupApp)
function connectToAccountManager (cb) {
// setup communication with background
var pluginPort = chrome.runtime.connect({name: 'popup'})
var portStream = new PortStream(pluginPort)
// setup multiplexing
var mx = setupMultiplex(portStream)
// connect features
setupControllerConnection(mx.createStream('controller'), cb)
setupWeb3Connection(mx.createStream('provider'))
}
function setupWeb3Connection (stream) {
var remoteProvider = new StreamProvider()
remoteProvider.pipe(stream).pipe(remoteProvider)
stream.on('error', console.error.bind(console))
remoteProvider.on('error', console.error.bind(console))
global.web3 = new Web3(remoteProvider)
}
function setupControllerConnection (stream, cb) {
var eventEmitter = new EventEmitter()
var background = Dnode({
sendUpdate: function (state) {
eventEmitter.emit('update', state)
},
})
stream.pipe(background).pipe(stream)
background.once('remote', function (accountManager) {
// setup push events
accountManager.on = eventEmitter.on.bind(eventEmitter)
cb(null, accountManager)
})
}
function getCurrentDomain (cb) {
chrome.tabs.query({active: true, currentWindow: true}, function (results) {
var activeTab = results[0]
var currentUrl = activeTab && activeTab.url
var currentDomain = url.parse(currentUrl).host
if (!currentUrl) {
return cb(null, '<unknown>')
}
cb(null, currentDomain)
})
}
function clearNotifications(){
chrome.notifications.getAll(function (object) {
for (let notification in object){
chrome.notifications.clear(notification)
}
})
}
function setupApp (err, opts) {
if (err) {
alert(err.stack)
throw err
}
clearNotifications()
var container = document.getElementById('app-content')
MetaMaskUi({
container: container,
accountManager: opts.accountManager,
currentDomain: opts.currentDomain,
networkVersion: opts.networkVersion,
})
}
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