You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
2.8 KiB
122 lines
2.8 KiB
/*global Web3*/
|
|
|
|
// TODO:deprecate:2020
|
|
// Delete this file
|
|
|
|
import 'web3/dist/web3.min.js'
|
|
|
|
const shouldLogUsage = !([
|
|
'docs.metamask.io',
|
|
'metamask.github.io',
|
|
'metamask.io',
|
|
].includes(window.location.hostname))
|
|
|
|
export default function setupWeb3 (log) {
|
|
// export web3 as a global, checking for usage
|
|
let reloadInProgress = false
|
|
let lastTimeUsed
|
|
let lastSeenNetwork
|
|
let hasBeenWarned = false
|
|
|
|
const web3 = new Web3(window.ethereum)
|
|
web3.setProvider = function () {
|
|
log.debug('MetaMask - overrode web3.setProvider')
|
|
}
|
|
log.debug('MetaMask - injected web3')
|
|
|
|
Object.defineProperty(window.ethereum, '_web3Ref', {
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true,
|
|
value: web3.eth,
|
|
})
|
|
|
|
const web3Proxy = new Proxy(web3, {
|
|
get: (_web3, key) => {
|
|
|
|
// get the time of use
|
|
lastTimeUsed = Date.now()
|
|
|
|
// show warning once on web3 access
|
|
if (!hasBeenWarned) {
|
|
console.warn(`MetaMask: We will stop injecting web3 in Q4 2020.\nPlease see this article for more information: https://medium.com/metamask/no-longer-injecting-web3-js-4a899ad6e59e`)
|
|
hasBeenWarned = true
|
|
}
|
|
|
|
if (shouldLogUsage) {
|
|
window.ethereum.request({
|
|
method: 'metamask_logInjectedWeb3Usage',
|
|
params: [{ action: 'window.web3 get', name: key }],
|
|
})
|
|
}
|
|
|
|
// return value normally
|
|
return _web3[key]
|
|
},
|
|
set: (_web3, key, value) => {
|
|
|
|
if (shouldLogUsage) {
|
|
window.ethereum.request({
|
|
method: 'metamask_logInjectedWeb3Usage',
|
|
params: [{ action: 'window.web3 set', name: key }],
|
|
})
|
|
}
|
|
|
|
// set value normally
|
|
_web3[key] = value
|
|
},
|
|
})
|
|
|
|
Object.defineProperty(global, 'web3', {
|
|
enumerable: false,
|
|
writable: true,
|
|
configurable: true,
|
|
value: web3Proxy,
|
|
})
|
|
|
|
window.ethereum._publicConfigStore.subscribe((state) => {
|
|
// if the auto refresh on network change is false do not
|
|
// do anything
|
|
if (!window.ethereum.autoRefreshOnNetworkChange) {
|
|
return
|
|
}
|
|
|
|
// if reload in progress, no need to check reload logic
|
|
if (reloadInProgress) {
|
|
return
|
|
}
|
|
|
|
const currentNetwork = state.networkVersion
|
|
|
|
// set the initial network
|
|
if (!lastSeenNetwork) {
|
|
lastSeenNetwork = currentNetwork
|
|
return
|
|
}
|
|
|
|
// skip reload logic if web3 not used
|
|
if (!lastTimeUsed) {
|
|
return
|
|
}
|
|
|
|
// if network did not change, exit
|
|
if (currentNetwork === lastSeenNetwork) {
|
|
return
|
|
}
|
|
|
|
// initiate page reload
|
|
reloadInProgress = true
|
|
const timeSinceUse = Date.now() - lastTimeUsed
|
|
// if web3 was recently used then delay the reloading of the page
|
|
if (timeSinceUse > 500) {
|
|
triggerReset()
|
|
} else {
|
|
setTimeout(triggerReset, 500)
|
|
}
|
|
})
|
|
}
|
|
|
|
// reload the page
|
|
function triggerReset () {
|
|
global.location.reload()
|
|
}
|
|
|