jiti-meet/react/features/base/config/middleware.js

171 lines
5.5 KiB
JavaScript

// @flow
import { jitsiLocalStorage } from '@jitsi/js-utils';
import { APP_WILL_MOUNT } from '../app';
import { getFeatureFlag } from '../flags/functions';
import { addKnownDomains } from '../known-domains';
import { MiddlewareRegistry } from '../redux';
import { updateSettings } from '../settings';
import { parseURIString } from '../util';
import { SET_CONFIG, OVERWRITE_CONFIG } from './actionTypes';
import { updateConfig } from './actions';
import { _CONFIG_STORE_PREFIX } from './constants';
/**
* The middleware of the feature {@code base/config}.
*
* @param {Store} store - The redux store.
* @private
* @returns {Function}
*/
MiddlewareRegistry.register(store => next => action => {
switch (action.type) {
case APP_WILL_MOUNT:
return _appWillMount(store, next, action);
case SET_CONFIG:
return _setConfig(store, next, action);
case OVERWRITE_CONFIG:
return _updateSettings(store, next, action);
}
return next(action);
});
/**
* Notifies the feature {@code base/config} that the {@link APP_WILL_MOUNT}
* redux action is being {@code dispatch}ed in a specific redux 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} in the specified {@code store}.
* @param {Action} action - The redux action which is being {@code dispatch}ed
* in the specified {@code store}.
* @private
* @returns {*} The return value of {@code next(action)}.
*/
function _appWillMount(store, next, action) {
const result = next(action);
// It's an opportune time to transfer the feature base/config's knowledge
// about "known domains" (which is local to the feature) to the feature
// base/known-domains (which is global to the app).
//
// XXX Since the feature base/config predates the feature calendar-sync and,
// consequently, the feature known-domains, it's possible for the feature
// base/config to know of domains which the feature known-domains is yet to
// discover.
const prefix = `${_CONFIG_STORE_PREFIX}/`;
const knownDomains = [];
for (let i = 0; /* localStorage.key(i) */; ++i) {
const key = jitsiLocalStorage.key(i);
if (key) {
let baseURL;
if (key.startsWith(prefix)
&& (baseURL = key.substring(prefix.length))) {
const uri = parseURIString(baseURL);
let host;
uri && (host = uri.host) && knownDomains.push(host);
}
} else {
break;
}
}
knownDomains.length && store.dispatch(addKnownDomains(knownDomains));
return result;
}
/**
* Notifies the feature {@code base/config} that the {@link SET_CONFIG} redux
* action is being {@code dispatch}ed in a specific redux 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} in the specified {@code store}.
* @param {Action} action - The redux action which is being {@code dispatch}ed
* in the specified {@code store}.
* @private
* @returns {*} The return value of {@code next(action)}.
*/
function _setConfig({ dispatch, getState }, next, action) {
// The reducer is doing some alterations to the config passed in the action,
// so make sure it's the final state by waiting for the action to be
// reduced.
const result = next(action);
const state = getState();
// Update the config with user defined settings.
const settings = state['features/base/settings'];
const config = {};
if (typeof settings.disableP2P !== 'undefined') {
config.p2p = { enabled: !settings.disableP2P };
}
const resolutionFlag = getFeatureFlag(state, 'resolution');
if (typeof resolutionFlag !== 'undefined') {
config.resolution = resolutionFlag;
}
if (action.config.doNotFlipLocalVideo === true) {
dispatch(updateSettings({
localFlipX: false
}));
}
if (action.config.disableSelfView !== undefined) {
dispatch(updateSettings({
disableSelfView: action.config.disableSelfView
}));
}
dispatch(updateConfig(config));
// FIXME On Web we rely on the global 'config' variable which gets altered
// multiple times, before it makes it to the reducer. At some point it may
// not be the global variable which is being modified anymore due to
// different merge methods being used along the way. The global variable
// must be synchronized with the final state resolved by the reducer.
if (typeof window.config !== 'undefined') {
window.config = state['features/base/config'];
}
return result;
}
/**
* Updates settings based on some config values.
*
* @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} in the specified {@code store}.
* @param {Action} action - The redux action which is being {@code dispatch}ed
* in the specified {@code store}.
* @private
* @returns {*} The return value of {@code next(action)}.
*/
function _updateSettings({ dispatch }, next, action) {
const { config: { doNotFlipLocalVideo } } = action;
if (doNotFlipLocalVideo === true) {
dispatch(updateSettings({
localFlipX: false
}));
}
return next(action);
}