mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-12 12:47:14 +01:00
3a6cc3c8fd
We want to give devs some time to digest [this blog post](https://medium.com/metamask/breaking-change-no-longer-reloading-pages-on-network-change-4a3e1fd2f5e7) before we making a breaking change to our platform. Makes it easy to re-implement the change.
99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
/*global Web3*/
|
|
cleanContextForImports()
|
|
require('web3/dist/web3.min.js')
|
|
const log = require('loglevel')
|
|
const LocalMessageDuplexStream = require('post-message-stream')
|
|
const setupDappAutoReload = require('./lib/auto-reload.js')
|
|
const MetamaskInpageProvider = require('./lib/inpage-provider.js')
|
|
restoreContextAfterImports()
|
|
|
|
log.setDefaultLevel(process.env.METAMASK_DEBUG ? 'debug' : 'warn')
|
|
|
|
//
|
|
// setup plugin communication
|
|
//
|
|
|
|
// setup background connection
|
|
var metamaskStream = new LocalMessageDuplexStream({
|
|
name: 'inpage',
|
|
target: 'contentscript',
|
|
})
|
|
|
|
// compose the inpage provider
|
|
var inpageProvider = new MetamaskInpageProvider(metamaskStream)
|
|
|
|
//
|
|
// setup web3
|
|
//
|
|
|
|
if (typeof window.web3 !== 'undefined') {
|
|
throw new Error(`MetaMask detected another web3.
|
|
MetaMask will not work reliably with another web3 extension.
|
|
This usually happens if you have two MetaMasks installed,
|
|
or MetaMask and another web3 extension. Please remove one
|
|
and try again.`)
|
|
}
|
|
var web3 = new Web3(inpageProvider)
|
|
web3.setProvider = function () {
|
|
log.debug('MetaMask - overrode web3.setProvider')
|
|
}
|
|
log.debug('MetaMask - injected web3')
|
|
|
|
setupDappAutoReload(web3, inpageProvider.publicConfigStore)
|
|
|
|
// export global web3, with usage-detection and deprecation warning
|
|
|
|
/* TODO: Uncomment this area once auto-reload.js has been deprecated:
|
|
let hasBeenWarned = false
|
|
global.web3 = new Proxy(web3, {
|
|
get: (_web3, key) => {
|
|
// show warning once on web3 access
|
|
if (!hasBeenWarned && key !== 'currentProvider') {
|
|
console.warn('MetaMask: web3 will be deprecated in the near future in favor of the ethereumProvider \nhttps://github.com/MetaMask/faq/blob/master/detecting_metamask.md#web3-deprecation')
|
|
hasBeenWarned = true
|
|
}
|
|
// return value normally
|
|
return _web3[key]
|
|
},
|
|
set: (_web3, key, value) => {
|
|
// set value normally
|
|
_web3[key] = value
|
|
},
|
|
})
|
|
*/
|
|
|
|
// set web3 defaultAccount
|
|
inpageProvider.publicConfigStore.subscribe(function (state) {
|
|
web3.eth.defaultAccount = state.selectedAddress
|
|
})
|
|
|
|
// need to make sure we aren't affected by overlapping namespaces
|
|
// and that we dont affect the app with our namespace
|
|
// mostly a fix for web3's BigNumber if AMD's "define" is defined...
|
|
var __define
|
|
|
|
/**
|
|
* Caches reference to global define object and deletes it to
|
|
* avoid conflicts with other global define objects, such as
|
|
* AMD's define function
|
|
*/
|
|
function cleanContextForImports () {
|
|
__define = global.define
|
|
try {
|
|
global.define = undefined
|
|
} catch (_) {
|
|
console.warn('MetaMask - global.define could not be deleted.')
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Restores global define object from cached reference
|
|
*/
|
|
function restoreContextAfterImports () {
|
|
try {
|
|
global.define = __define
|
|
} catch (_) {
|
|
console.warn('MetaMask - global.define could not be overwritten.')
|
|
}
|
|
}
|