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

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// @flow
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import { setAudioOnly } from '../conference';
import { getLocalParticipant, participantUpdated } from '../participants';
import { MiddlewareRegistry } from '../redux';
import { SETTINGS_UPDATED } from './actionTypes';
/**
* The middleware of the feature base/settings. Distributes changes to the state
* of base/settings to the states of other features computed from the state of
* base/settings.
*
* @param {Store} store - The redux store.
* @returns {Function}
*/
MiddlewareRegistry.register(store => next => action => {
const result = next(action);
switch (action.type) {
case SETTINGS_UPDATED:
_maybeSetAudioOnly(store, action);
_updateLocalParticipant(store, action);
}
return result;
});
/**
* Maps the settings field names to participant names where they don't match.
* Currently there is only one such field, but may be extended in the future.
*
* @private
* @param {string} settingsField - The name of the settings field to map.
* @returns {string}
*/
function _mapSettingsFieldToParticipant(settingsField) {
switch (settingsField) {
case 'displayName':
return 'name';
}
return settingsField;
}
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/**
* Updates {@code startAudioOnly} flag if it's updated in the settings.
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*
* @param {Store} store - The redux store.
* @param {Object} action - The redux action.
* @private
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* @returns {void}
*/
function _maybeSetAudioOnly(
{ dispatch },
{ settings: { startAudioOnly } }) {
if (typeof startAudioOnly === 'boolean') {
dispatch(setAudioOnly(startAudioOnly, true));
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}
}
/**
* Updates the local participant according to settings changes.
*
* @param {Store} store - The redux store.
* @param {Object} action - The dispatched action.
* @private
* @returns {void}
*/
function _updateLocalParticipant({ dispatch, getState }, action) {
const { settings } = action;
const localParticipant = getLocalParticipant(getState());
const newLocalParticipant = {
...localParticipant
};
for (const key in settings) {
if (settings.hasOwnProperty(key)) {
newLocalParticipant[_mapSettingsFieldToParticipant(key)]
= settings[key];
}
}
dispatch(participantUpdated(newLocalParticipant));
}