pp6q2gr5v/node_modules/connected-react-router/esm/ConnectedRouter.js

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import React, { PureComponent } from 'react';
import PropTypes from 'prop-types';
import { connect, ReactReduxContext } from 'react-redux';
import { Router } from 'react-router';
import { onLocationChanged as _onLocationChanged } from './actions';
import createSelectors from './selectors';

var createConnectedRouter = function createConnectedRouter(structure) {
  var _createSelectors = createSelectors(structure),
      getLocation = _createSelectors.getLocation;
  /*
   * ConnectedRouter listens to a history object passed from props.
   * When history is changed, it dispatches action to redux store.
   * Then, store will pass props to component to render.
   * This creates uni-directional flow from history->store->router->components.
   */


  var ConnectedRouter =
  /*#__PURE__*/
  function (_PureComponent) {
    _inherits(ConnectedRouter, _PureComponent);

    function ConnectedRouter(props) {
      var _this;

      _classCallCheck(this, ConnectedRouter);

      _this = _possibleConstructorReturn(this, _getPrototypeOf(ConnectedRouter).call(this, props));
      var store = props.store,
          history = props.history,
          onLocationChanged = props.onLocationChanged;
      _this.inTimeTravelling = false; // Subscribe to store changes to check if we are in time travelling

      _this.unsubscribe = store.subscribe(function () {
        // Extract store's location
        var _getLocation = getLocation(store.getState()),
            pathnameInStore = _getLocation.pathname,
            searchInStore = _getLocation.search,
            hashInStore = _getLocation.hash; // Extract history's location


        var _history$location = history.location,
            pathnameInHistory = _history$location.pathname,
            searchInHistory = _history$location.search,
            hashInHistory = _history$location.hash; // If we do time travelling, the location in store is changed but location in history is not changed

        if (pathnameInHistory !== pathnameInStore || searchInHistory !== searchInStore || hashInHistory !== hashInStore) {
          _this.inTimeTravelling = true; // Update history's location to match store's location

          history.push({
            pathname: pathnameInStore,
            search: searchInStore,
            hash: hashInStore
          });
        }
      });

      var handleLocationChange = function handleLocationChange(location, action) {
        var isFirstRendering = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

        // Dispatch onLocationChanged except when we're in time travelling
        if (!_this.inTimeTravelling) {
          onLocationChanged(location, action, isFirstRendering);
        } else {
          _this.inTimeTravelling = false;
        }
      }; // Listen to history changes


      _this.unlisten = history.listen(handleLocationChange); // Dispatch a location change action for the initial location.
      // This makes it backward-compatible with react-router-redux.
      // But, we add `isFirstRendering` to `true` to prevent double-rendering.

      handleLocationChange(history.location, history.action, true);
      return _this;
    }

    _createClass(ConnectedRouter, [{
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        this.unlisten();
        this.unsubscribe();
      }
    }, {
      key: "render",
      value: function render() {
        var _this$props = this.props,
            history = _this$props.history,
            children = _this$props.children;
        return React.createElement(Router, {
          history: history
        }, children);
      }
    }]);

    return ConnectedRouter;
  }(PureComponent);

  ConnectedRouter.propTypes = {
    store: PropTypes.shape({
      getState: PropTypes.func.isRequired,
      subscribe: PropTypes.func.isRequired
    }).isRequired,
    history: PropTypes.shape({
      action: PropTypes.string.isRequired,
      listen: PropTypes.func.isRequired,
      location: PropTypes.object.isRequired,
      push: PropTypes.func.isRequired
    }).isRequired,
    basename: PropTypes.string,
    children: PropTypes.oneOfType([PropTypes.func, PropTypes.node]),
    onLocationChanged: PropTypes.func.isRequired
  };

  var mapDispatchToProps = function mapDispatchToProps(dispatch) {
    return {
      onLocationChanged: function onLocationChanged(location, action, isFirstRendering) {
        return dispatch(_onLocationChanged(location, action, isFirstRendering));
      }
    };
  };

  var ConnectedRouterWithContext = function ConnectedRouterWithContext(props) {
    var Context = props.context || ReactReduxContext;

    if (Context == null) {
      throw 'Please upgrade to react-redux v6';
    }

    return React.createElement(Context.Consumer, null, function (_ref) {
      var store = _ref.store;
      return React.createElement(ConnectedRouter, _extends({
        store: store
      }, props));
    });
  };

  ConnectedRouterWithContext.propTypes = {
    context: PropTypes.object
  };
  return connect(null, mapDispatchToProps)(ConnectedRouterWithContext);
};

export default createConnectedRouter;