import { combineReducers } from 'redux'; import { CONFERENCE_FAILED, CONFERENCE_LEFT } from '../conference/actionTypes'; import { ReducerRegistry } from '../redux'; import { TRACK_REMOVED } from '../tracks/actionTypes'; import { SET_AUDIO_AVAILABLE, SET_AUDIO_MUTED, SET_CAMERA_FACING_MODE, SET_VIDEO_AVAILABLE, SET_VIDEO_MUTED, STORE_VIDEO_TRANSFORM, TOGGLE_CAMERA_FACING_MODE } from './actionTypes'; import { CAMERA_FACING_MODE } from './constants'; /** * Media state object for local audio. * * @typedef {Object} AudioMediaState * @property {boolean} muted=false - Audio muted state. */ // FIXME Technically, _AUDIO_INITIAL_MEDIA_STATE is a constant internal to the // feature base/media and used in multiple files so it should be in // constants.js. Practically though, AudioMediaState would then be used in // multiple files as well so I don't know where and how to move it. /** * Initial state for local audio. * * @type {AudioMediaState} */ export const _AUDIO_INITIAL_MEDIA_STATE = { available: true, muted: false }; /** * Reducer for audio media state. * * @param {AudioMediaState} state - Media state of local audio. * @param {Object} action - Action object. * @param {string} action.type - Type of action. * @private * @returns {AudioMediaState} */ function _audio(state = _AUDIO_INITIAL_MEDIA_STATE, action) { switch (action.type) { case SET_AUDIO_AVAILABLE: return { ...state, available: action.available }; case SET_AUDIO_MUTED: return { ...state, muted: action.muted }; default: return state; } } /** * Media state object for local video. * * @typedef {Object} VideoMediaState * @property {CAMERA_FACING_MODE} facingMode='user' - Camera facing mode. * @property {boolean} muted=false - Video muted state. */ // FIXME Technically, _VIDEO_INITIAL_MEDIA_STATE is a constant internal to the // feature base/media and used in multiple files so it should be in // constants.js. Practically though, VideoMediaState would then be used in // multiple files as well so I don't know where and how to move it. /** * Initial state for video. * * @type {VideoMediaState} */ export const _VIDEO_INITIAL_MEDIA_STATE = { available: true, facingMode: CAMERA_FACING_MODE.USER, muted: 0, /** * The video {@link Transform}s applied to {@code MediaStream}s by * {@code id} i.e. "pinch to zoom". */ transforms: {} }; /** * Reducer for camera media state. * * @param {VideoMediaState} state - Media state of local video. * @param {Object} action - Action object. * @param {string} action.type - Type of action. * @private * @returns {VideoMediaState} */ function _video(state = _VIDEO_INITIAL_MEDIA_STATE, action) { switch (action.type) { case CONFERENCE_FAILED: case CONFERENCE_LEFT: return _clearAllVideoTransforms(state); case SET_CAMERA_FACING_MODE: return { ...state, facingMode: action.cameraFacingMode }; case SET_VIDEO_AVAILABLE: return { ...state, available: action.available }; case SET_VIDEO_MUTED: return { ...state, muted: action.muted }; case STORE_VIDEO_TRANSFORM: return _storeVideoTransform(state, action); case TOGGLE_CAMERA_FACING_MODE: { let cameraFacingMode = state.facingMode; cameraFacingMode = cameraFacingMode === CAMERA_FACING_MODE.USER ? CAMERA_FACING_MODE.ENVIRONMENT : CAMERA_FACING_MODE.USER; return { ...state, facingMode: cameraFacingMode }; } case TRACK_REMOVED: return _trackRemoved(state, action); default: return state; } } /** * Listen for various actions related to media devices. * * @param {Object} state - State of media devices. * @param {Object} action - Action object. * @param {string} action.type - Type of action. * @param {Object} action.media - Information about media devices to be * modified. * @returns {Object} */ ReducerRegistry.register('features/base/media', combineReducers({ audio: _audio, video: _video })); /** * Removes all stored video {@link Transform}s. * * @param {Object} state - The {@code video} state of the feature base/media. * @private * @returns {Object} */ function _clearAllVideoTransforms(state) { return { ...state, transforms: _VIDEO_INITIAL_MEDIA_STATE.transforms }; } /** * Stores the last applied transform to a stream. * * @param {Object} state - The {@code video} state of the feature base/media. * @param {Object} action - The redux action {@link STORE_VIDEO_TRANSFORM}. * @private * @returns {Object} */ function _storeVideoTransform(state, { streamId, transform }) { return { ...state, transforms: { ...state.transforms, [streamId]: transform } }; } /** * Removes the stored video {@link Transform} associated with a * {@code MediaStream} when its respective track is removed. * * @param {Object} state - The {@code video} state of the feature base/media. * @param {Object} action - The redux action {@link TRACK_REMOVED}. * @private * @returns {Object} */ function _trackRemoved(state, { track: { jitsiTrack } }) { if (jitsiTrack) { const streamId = jitsiTrack.getStreamId(); if (streamId && streamId in state.transforms) { const nextTransforms = { ...state.transforms }; delete nextTransforms[streamId]; return { ...state, transforms: nextTransforms }; } } return state; }