react-navigation/website/src/BrowserAppContainer.js

import React from 'react';
import PropTypes from 'prop-types';

import { NavigationActions, addNavigationHelpers } from 'react-navigation';

function getAction(router, path, params) {
  const action = router.getActionForPathAndParams(path, params);
  if (action) {
    return action;
  }
  return NavigationActions.navigate({
    params: { path },
    routeName: 'NotFound',
  });
}

export default NavigationAwareView => {
  const initialAction = getAction(
    NavigationAwareView.router,
    window.location.pathname.substr(1)
  );
  const initialState = NavigationAwareView.router.getStateForAction(
    initialAction
  );
  console.log({ initialAction, initialState });

  class NavigationContainer extends React.Component {
    state = initialState;
    componentDidMount() {
      const navigation = addNavigationHelpers({
        state: this.state.routes[this.state.index],
        dispatch: this.dispatch,
      });
      document.title = NavigationAwareView.router.getScreenOptions(
        navigation
      ).title;
      window.onpopstate = e => {
        e.preventDefault();
        const action = getAction(
          NavigationAwareView.router,
          window.location.pathname.substr(1)
        );
        if (action) this.dispatch(action);
      };
    }
    componentWillUpdate(props, state) {
      const {
        path,
        params,
      } = NavigationAwareView.router.getPathAndParamsForState(state);
      const maybeHash = params && params.hash ? `#${params.hash}` : '';
      const uri = `/${path}${maybeHash}`;
      if (window.location.pathname !== uri) {
        window.history.pushState({}, state.title, uri);
      }
      const navigation = addNavigationHelpers({
        state: state.routes[state.index],
        dispatch: this.dispatch,
      });
      document.title = NavigationAwareView.router.getScreenOptions(
        navigation
      ).title;
    }
    componentDidUpdate() {
      const { params } = NavigationAwareView.router.getPathAndParamsForState(
        this.state
      );
      if (params && params.hash) {
        document.getElementById(params.hash).scrollIntoView();
      }
    }
    dispatch = action => {
      const state = NavigationAwareView.router.getStateForAction(
        action,
        this.state
      );

      if (!state) {
        console.log('Dispatched action did not change state: ', { action });
      } else if (console.group) {
        console.group('Navigation Dispatch: ');
        console.log('Action: ', action);
        console.log('New State: ', state);
        console.log('Last State: ', this.state);
        console.groupEnd();
      } else {
        console.log('Navigation Dispatch: ', {
          action,
          newState: state,
          lastState: this.state,
        });
      }

      if (!state) {
        return true;
      }

      if (state !== this.state) {
        this.setState(state);
        return true;
      }
      return false;
    };
    render() {
      return (
        <NavigationAwareView
          navigation={addNavigationHelpers({
            state: this.state,
            dispatch: this.dispatch,
          })}
        />
      );
    }
    getURIForAction = action => {
      const state =
        NavigationAwareView.router.getStateForAction(action, this.state) ||
        this.state;
      const { path } = NavigationAwareView.router.getPathAndParamsForState(
        state
      );
      return `/${path}`;
    };
    getActionForPathAndParams = (path, params) => {
      return NavigationAwareView.router.getActionForPathAndParams(path, params);
    };
    static childContextTypes = {
      getActionForPathAndParams: PropTypes.func.isRequired,
      getURIForAction: PropTypes.func.isRequired,
      dispatch: PropTypes.func.isRequired,
    };
    getChildContext() {
      return {
        getActionForPathAndParams: this.getActionForPathAndParams,
        getURIForAction: this.getURIForAction,
        dispatch: this.dispatch,
      };
    }
  }
  return NavigationContainer;
};