lbry-desktop/src/renderer/component/header/index.js

import React from "react";
import { formatCredits } from "util/formatCredits";
import { connect } from "react-redux";
import {
  selectIsBackDisabled,
  selectIsForwardDisabled,
} from "redux/selectors/navigation";
import { selectBalance } from "redux/selectors/wallet";
import {
  doNavigate,
  doHistoryBack,
  doHistoryForward,
} from "redux/actions/navigation";
import Header from "./view";
import { selectIsUpgradeAvailable } from "redux/selectors/app";
import { doDownloadUpgrade } from "redux/actions/app";

const select = state => ({
  isBackDisabled: selectIsBackDisabled(state),
  isForwardDisabled: selectIsForwardDisabled(state),
  isUpgradeAvailable: selectIsUpgradeAvailable(state),
  balance: formatCredits(selectBalance(state) || 0, 2),
});

const perform = dispatch => ({
  navigate: path => dispatch(doNavigate(path)),
  back: () => dispatch(doHistoryBack()),
  forward: () => dispatch(doHistoryForward()),
  downloadUpgrade: () => dispatch(doDownloadUpgrade()),
});

export default connect(select, perform)(Header);