openethereum/js/src/inject.js

88 lines
2.4 KiB
JavaScript

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import Api from '@parity/api';
import qs from 'query-string';
import Web3 from 'web3';
function initProvider () {
const path = window.location.pathname.split('/');
const query = qs.parse(window.location.search);
let appId = path[1] || query.appId;
if (appId === 'dapps') {
appId = path[2];
}
const ethereum = new Api.Provider.PostMessage(appId);
console.log(`Requesting API communications token for ${appId}`);
ethereum
.requestNewToken()
.then((tokenId) => {
console.log(`Received API communications token ${tokenId}`);
})
.catch((error) => {
console.error('Unable to retrieve communications token', error);
});
window.ethereum = ethereum;
window.isParity = true;
return ethereum;
}
function initWeb3 (ethereum) {
// FIXME: Use standard provider for web3
const provider = new Api.Provider.SendAsync(ethereum);
const web3 = new Web3(provider);
if (!web3.currentProvider) {
web3.currentProvider = provider;
}
// set default account
web3.eth.getAccounts((error, accounts) => {
if (error || !accounts || !accounts[0]) {
return;
}
web3.eth.defaultAccount = accounts[0];
});
window.web3 = web3;
}
function initParity (ethereum) {
const api = new Api(ethereum);
window.parity = Object.assign({}, window.parity || {}, {
Api,
api
});
}
if (typeof window !== 'undefined' && !window.isParity) {
const ethereum = initProvider();
initWeb3(ethereum);
initParity(ethereum);
console.warn('Deprecation: Dapps should only used the exposed EthereumProvider on `window.ethereum`, the use of `window.parity` and `window.web3` will be removed in future versions of this injector');
}