poanetwork
/
poa-dapps-voting
mirror of https://github.com/poanetwork/poa-dapps-voting.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Select the network from metamask when first visiting (#212) 

* select the network from metamask when first visiting

* Keep netId in browser's storage and use it when page first loading if possible

Co-authored-by: varasev <33550681+varasev@users.noreply.github.com>
This commit is contained in:
Max Alekseenko 2019-12-30 13:45:14 +03:00 committed by varasev
parent 0d04cebeb5
commit b314def1a9
2 changed files with 29 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/index.js
View File

@ -37,7 +37,7 @@ class AppMainRouter extends Component {
}
initChain = () => {
const netId = window.localStorage.netId
const netId = window.sessionStorage.netId
getWeb3(netId, this.onAccountChange)
.then(async web3Config => {
await this.initialize(web3Config)
@ -103,6 +103,7 @@ class AppMainRouter extends Component {
onNetworkChange = e => {
commonStore.showLoading(getNetworkBranch(e.value))
window.localStorage.netId = e.value
window.sessionStorage.netId = e.value
contractsStore.resetContracts()
ballotsStore.reset()
this.initChain()

29
src/utils/getWeb3.js
View File

@ -4,9 +4,8 @@ import { constants } from './constants'
const defaultNetId = helpers.netIdByBranch(constants.CORE)
export default async function getWeb3(netId = defaultNetId, onAccountChange) {
export default async function getWeb3(netId, onAccountChange) {
let web3 = null
netId = Number(netId)
// Checking if Web3 has been injected by the browser (Mist/MetaMask)
if (window.ethereum) {
@ -23,6 +22,32 @@ export default async function getWeb3(netId = defaultNetId, onAccountChange) {
console.log('Injected web3 detected.')
}
if (!netId) {
// Load for the first time in the current browser's session
if (web3) {
// MetaMask (or another plugin) is injected
netId = await web3.eth.net.getId()
if (!(netId in constants.NETWORKS)) {
// If plugin's netId is unsupported, try to use
// the previously chosen netId
netId = window.localStorage.netId
}
} else {
// MetaMask (or another plugin) is not injected,
// so try to use the previously chosen netId
netId = window.localStorage.netId
}
if (!(netId in constants.NETWORKS)) {
// If plugin's netId and/or previously chosen netId are not supported,
// fallback to default netId
netId = defaultNetId
}
window.localStorage.netId = netId
window.sessionStorage.netId = netId
}
netId = Number(netId)
const network = constants.NETWORKS[netId]
const injectedWeb3 = web3 !== null
let netIdName = network.NAME