@aeternity/aepp-sdk/es/aepp-wallet-communication/wallet-detector.js

SDK for the æternity blockchain

import BrowserWindowMessageConnection from './connection/BrowserWindowMessage.js';
import { MESSAGE_DIRECTION, METHODS } from './schema.js';
import { UnsupportedPlatformError } from '../utils/errors.js';
/**
 * A function to detect available wallets
 * @category aepp wallet communication
 * @param connection - connection to use to detect wallets
 * @param onDetected - call-back function which trigger on new wallet
 * @returns a function to stop scanning
 */
export default (connection, onDetected) => {
  if (window == null) throw new UnsupportedPlatformError('Window object not found, you can run wallet detector only in browser');
  const wallets = {};
  connection.connect(({
    method,
    params
  }, origin, source) => {
    if (method !== METHODS.readyToConnect || wallets[params.id] != null) return;
    const wallet = {
      info: params,
      getConnection() {
        return new BrowserWindowMessageConnection({
          target: source,
          ...(params.type === 'extension' ? {
            sendDirection: MESSAGE_DIRECTION.to_waellet,
            receiveDirection: MESSAGE_DIRECTION.to_aepp,
            ...(window.origin !== 'null' && {
              origin: window.origin
            })
          } : {
            origin: params.origin
          })
        });
      }
    };
    wallets[wallet.info.id] = wallet;
    onDetected({
      wallets,
      newWallet: wallet
    });
  }, () => {});
  return () => connection.disconnect();
};
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