jiti-meet/react/features/app/middleware.js

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import { SET_ROOM } from '../base/conference';
import {
CONNECTION_ESTABLISHED,
getURLWithoutParams,
SET_LOCATION_URL
} from '../base/connection';
import { MiddlewareRegistry } from '../base/redux';
MiddlewareRegistry.register(store => next => action => {
switch (action.type) {
case CONNECTION_ESTABLISHED:
return _connectionEstablished(store, next, action);
case SET_LOCATION_URL:
case SET_ROOM:
return _setLocationURLOrRoom(store, next, action);
}
return next(action);
});
/**
* Notifies the feature app that the action {@link CONNECTION_ESTABLISHED} is
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* being dispatched within a specific redux {@code store}.
*
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* @param {Store} store - The redux store in which the specified {@code action}
* is being dispatched.
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* @param {Dispatch} next - The redux {@code dispatch} function to dispatch the
* specified {@code action} to the specified {@code store}.
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* @param {Action} action - The redux action {@code CONNECTION_ESTABLISHED}
* which is being dispatched in the specified {@code store}.
* @private
* @returns {Object} The new state that is the result of the reduction of the
* specified {@code action}.
*/
function _connectionEstablished(store, next, action) {
const result = next(action);
// In the Web app we explicitly do not want to display the hash and
// query/search URL params. Unfortunately, window.location and, more
// importantly, its params are used not only in jitsi-meet but also in
// lib-jitsi-meet. Consequenlty, the time to remove the params is
// determined by when no one needs them anymore.
const { history, location } = window;
if (history
&& location
&& history.length
&& typeof history.replaceState === 'function') {
const replacement = getURLWithoutParams(location);
if (location !== replacement) {
history.replaceState(
history.state,
(document && document.title) || '',
replacement);
}
}
return result;
}
/**
* Navigates to a route in accord with a specific redux state.
*
* @param {Object} state - The redux state which determines/identifies the route
* to navigate to.
* @private
* @returns {void}
*/
function _navigate(state) {
const { app, getRouteToRender } = state['features/app'];
const routeToRender = getRouteToRender && getRouteToRender(state);
app._navigate(routeToRender);
}
/**
* Notifies the feature app that the action {@link SET_LOCATION_URL} or
* {@link SET_ROOM} is being dispatched within a specific redux {@code store}.
*
* @param {Store} store - The redux store in which the specified {@code action}
* is being dispatched.
* @param {Dispatch} next - The redux {@code dispatch} function to dispatch the
* specified {@code action} to the specified {@code store}.
* @param {Action} action - The redux action {@code SET_LOCATION_URL} or
* {@code SET_ROOM} which is being dispatched in the specified {@code store}.
* @private
* @returns {Object} The new state that is the result of the reduction of the
* specified {@code action}.
*/
function _setLocationURLOrRoom({ getState }, next, action) {
const result = next(action);
_navigate(getState());
return result;
}