jiti-meet/react/features/video-layout/middleware.any.ts

130 lines
4.0 KiB
TypeScript

import { IStore } from '../app/types';
import { getCurrentConference } from '../base/conference/functions';
import { PARTICIPANT_LEFT, PIN_PARTICIPANT } from '../base/participants/actionTypes';
import { pinParticipant } from '../base/participants/actions';
import { getParticipantById, getPinnedParticipant } from '../base/participants/functions';
import MiddlewareRegistry from '../base/redux/MiddlewareRegistry';
import StateListenerRegistry from '../base/redux/StateListenerRegistry';
import { SET_DOCUMENT_EDITING_STATUS } from '../etherpad/actionTypes';
import { isStageFilmstripEnabled } from '../filmstrip/functions';
import { isFollowMeActive } from '../follow-me/functions';
import { SET_TILE_VIEW } from './actionTypes';
import { setTileView } from './actions';
import { getAutoPinSetting, updateAutoPinnedParticipant } from './functions';
import './subscriber';
let previousTileViewEnabled: boolean | undefined;
/**
* Middleware which intercepts actions and updates tile view related state.
*
* @param {Store} store - The redux store.
* @returns {Function}
*/
MiddlewareRegistry.register(store => next => action => {
// we want to extract the leaving participant and check its type before actually the participant being removed.
let shouldUpdateAutoPin = false;
switch (action.type) {
case PARTICIPANT_LEFT: {
if (!getAutoPinSetting() || isFollowMeActive(store)) {
break;
}
shouldUpdateAutoPin = Boolean(getParticipantById(store.getState(), action.participant.id)?.fakeParticipant);
break;
}
}
const result = next(action);
switch (action.type) {
// Actions that temporarily clear the user preferred state of tile view,
// then re-set it when needed.
case PIN_PARTICIPANT: {
const pinnedParticipant = action.participant?.id;
if (pinnedParticipant) {
_storeTileViewStateAndClear(store);
} else {
_restoreTileViewState(store);
}
break;
}
case SET_DOCUMENT_EDITING_STATUS:
if (action.editing) {
_storeTileViewStateAndClear(store);
} else {
_restoreTileViewState(store);
}
break;
// Things to update when tile view state changes
case SET_TILE_VIEW: {
const state = store.getState();
const stageFilmstrip = isStageFilmstripEnabled(state);
if (action.enabled && !stageFilmstrip && getPinnedParticipant(state)) {
store.dispatch(pinParticipant(null));
}
break;
}
}
if (shouldUpdateAutoPin) {
const screenShares = store.getState()['features/video-layout'].remoteScreenShares || [];
updateAutoPinnedParticipant(screenShares, store);
}
return result;
});
/**
* Set up state change listener to perform maintenance tasks when the conference
* is left or failed.
*/
StateListenerRegistry.register(
state => getCurrentConference(state),
(conference, { dispatch }, previousConference) => {
if (conference !== previousConference) {
// conference changed, left or failed...
// Clear tile view state.
dispatch(setTileView());
}
});
/**
* Restores tile view state, if it wasn't updated since then.
*
* @param {Object} store - The Redux Store.
* @returns {void}
*/
function _restoreTileViewState({ dispatch, getState }: IStore) {
const { tileViewEnabled } = getState()['features/video-layout'];
if (tileViewEnabled === undefined && previousTileViewEnabled !== undefined) {
dispatch(setTileView(previousTileViewEnabled));
}
previousTileViewEnabled = undefined;
}
/**
* Stores the current tile view state and clears it.
*
* @param {Object} store - The Redux Store.
* @returns {void}
*/
function _storeTileViewStateAndClear({ dispatch, getState }: IStore) {
const { tileViewEnabled } = getState()['features/video-layout'];
if (tileViewEnabled !== undefined) {
previousTileViewEnabled = tileViewEnabled;
dispatch(setTileView(undefined));
}
}