mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-10-24 12:23:39 +02:00
50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
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const EventEmitter = require('events')
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module.exports = class serviceWorkerController extends EventEmitter{
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constructor (opts) {
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super()
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this.fileName = opts.fileName
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this.registerOpts = opts.registerOpts
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this.serviceWorker = navigator.serviceWorker
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}
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startWorker () {
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// check to see if their is a preregistered service worker
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if (!this.serviceWorker.controller) {
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return Promise.resolve(this.registerWorker())
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} else {
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return Promise.resolve(this.serviceWorker.ready)
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}
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}
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registerWorker () {
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return this.serviceWorker.register(this.fileName, this.registerOpts)
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.then(sw => {
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return sw
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})
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}
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syncSW (registeredSW) {
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return registeredSW.sync.register('sync')
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.then(() => {
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console.log('sync')
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})
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}
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sendMessage (message) {
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const self = this
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return new Promise((resolve, reject) => {
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var messageChannel = new MessageChannel()
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messageChannel.port1.onmessage = (event) => {
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if (event.data.err) {
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reject(event.data.error)
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} else {
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resolve(event.data.data)
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}
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}
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self.serviceWorker.controller.postMessage(message, [messageChannel.port2])
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})
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}
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}
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