feat(external-api) add command for setting camera facing mode

conference.js

@@ -441,7 +441,7 @@ export default {
 
         // Always get a handle on the audio input device so that we have statistics (such as "No audio input" or
         // "Are you trying to speak?" ) even if the user joins the conference muted.
-        const initialDevices = config.disableInitialGUM ? [] : [ MEDIA_TYPE.AUDIO ];
+        const initialDevices = config.startSilent || config.disableInitialGUM ? [] : [ MEDIA_TYPE.AUDIO ];
         const requestedAudio = !config.disableInitialGUM;
         let requestedVideo = false;
 

lang/main.json

@@ -269,6 +269,8 @@
         "addMeetingNote": "Add a note about this meeting",
         "addOptionalNote": "Add a note (optional):",
         "allow": "Allow",
+        "allowToggleCameraDialog": "Do you allow {{initiatorName}} to toggle your camera facing mode?",
+        "allowToggleCameraTitle": "Allow toggle camera?",
         "alreadySharedVideoMsg": "Another participant is already sharing a video. This conference allows only one shared video at a time.",
         "alreadySharedVideoTitle": "Only one shared video is allowed at a time",
         "applicationWindow": "Application window",

modules/API/API.js

@@ -50,8 +50,8 @@ import {
 } from '../../react/features/base/participants/functions';
 import { updateSettings } from '../../react/features/base/settings/actions';
 import { getDisplayName } from '../../react/features/base/settings/functions.web';
-import { toggleCamera } from '../../react/features/base/tracks/actions.any';
-import { isToggleCameraEnabled } from '../../react/features/base/tracks/functions';
+import { setCameraFacingMode } from '../../react/features/base/tracks/actions.web';
+import { CAMERA_FACING_MODE_MESSAGE } from '../../react/features/base/tracks/constants';
 import {
     autoAssignToBreakoutRooms,
     closeBreakoutRoom,
@@ -395,12 +395,8 @@ function initCommands() {
             sendAnalytics(createApiEvent('film.strip.resize'));
             APP.store.dispatch(resizeFilmStrip(options.width));
         },
-        'toggle-camera': () => {
-            if (!isToggleCameraEnabled(APP.store.getState())) {
-                return;
-            }
-
-            APP.store.dispatch(toggleCamera());
+        'toggle-camera': facingMode => {
+            APP.store.dispatch(setCameraFacingMode(facingMode));
         },
         'toggle-camera-mirror': () => {
             const state = APP.store.getState();
@@ -529,6 +525,18 @@ function initCommands() {
                 logger.error('Failed sending endpoint text message', err);
             }
         },
+        'send-camera-facing-mode-message': (to, facingMode) => {
+            if (!to) {
+                logger.warn('Participant id not set');
+
+                return;
+            }
+
+            APP.conference.sendEndpointMessage(to, {
+                name: CAMERA_FACING_MODE_MESSAGE,
+                facingMode
+            });
+        },
         'overwrite-names': participantList => {
             logger.debug('Overwrite names command received');
 

modules/API/external/external_api.js

@@ -54,6 +54,7 @@ const commands = {
     removeBreakoutRoom: 'remove-breakout-room',
     resizeFilmStrip: 'resize-film-strip',
     resizeLargeVideo: 'resize-large-video',
+    sendCameraFacingMode: 'send-camera-facing-mode-message',
     sendChatMessage: 'send-chat-message',
     sendEndpointTextMessage: 'send-endpoint-text-message',
     sendParticipantToRoom: 'send-participant-to-room',
@@ -112,6 +113,7 @@ const events = {
     'data-channel-opened': 'dataChannelOpened',
     'device-list-changed': 'deviceListChanged',
     'display-name-change': 'displayNameChange',
+    'dominant-speaker-changed': 'dominantSpeakerChanged',
     'email-change': 'emailChange',
     'error-occurred': 'errorOccurred',
     'endpoint-text-message-received': 'endpointTextMessageReceived',
@@ -153,7 +155,6 @@ const events = {
     'video-mute-status-changed': 'videoMuteStatusChanged',
     'video-quality-changed': 'videoQualityChanged',
     'screen-sharing-status-changed': 'screenSharingStatusChanged',
-    'dominant-speaker-changed': 'dominantSpeakerChanged',
     'subject-change': 'subjectChange',
     'suspend-detected': 'suspendDetected',
     'tile-view-changed': 'tileViewChanged',

react/features/base/tracks/actions.web.ts

@@ -13,18 +13,23 @@ import { toggleScreenshotCaptureSummary } from '../../screenshot-capture/actions
 import { isScreenshotCaptureEnabled } from '../../screenshot-capture/functions';
 import { AudioMixerEffect } from '../../stream-effects/audio-mixer/AudioMixerEffect';
 import { getCurrentConference } from '../conference/functions';
+import { openDialog } from '../dialog/actions';
 import { JitsiTrackErrors, JitsiTrackEvents } from '../lib-jitsi-meet';
 import { setScreenshareMuted } from '../media/actions';
 import { MEDIA_TYPE, VIDEO_TYPE } from '../media/constants';
 
 import {
     addLocalTrack,
-    replaceLocalTrack
+    replaceLocalTrack,
+    toggleCamera
 } from './actions.any';
+import AllowToggleCameraDialog from './components/web/AllowToggleCameraDialog';
 import {
     createLocalTracksF,
     getLocalDesktopTrack,
-    getLocalJitsiAudioTrack
+    getLocalJitsiAudioTrack,
+    getLocalVideoTrack,
+    isToggleCameraEnabled
 } from './functions';
 import { IShareOptions, IToggleScreenSharingOptions } from './types';
 
@@ -263,3 +268,52 @@ async function _toggleScreenSharing(
         APP.API.notifyScreenSharingStatusChanged(enable, screensharingDetails);
     }
 }
+
+/**
+ * Sets the camera facing mode(environment/user). If facing mode not provided, it will do a toggle.
+ *
+ * @param {string | undefined} facingMode - The selected facing mode.
+ * @returns {void}
+ */
+export function setCameraFacingMode(facingMode: string | undefined) {
+    return async (dispatch: IStore['dispatch'], getState: IStore['getState']) => {
+        const state = getState();
+
+        if (!isToggleCameraEnabled(state)) {
+            return;
+        }
+
+        if (!facingMode) {
+            dispatch(toggleCamera());
+
+            return;
+        }
+
+        const tracks = state['features/base/tracks'];
+        const localVideoTrack = getLocalVideoTrack(tracks)?.jitsiTrack;
+
+        if (!tracks || !localVideoTrack) {
+            return;
+        }
+
+        const currentFacingMode = localVideoTrack.getCameraFacingMode();
+
+        if (currentFacingMode !== facingMode) {
+            dispatch(toggleCamera());
+        }
+    };
+}
+
+/**
+ * Signals to open the permission dialog for toggling camera remotely.
+ *
+ * @param {Function} onAllow - Callback to be executed if permission to toggle camera was granted.
+ * @param {string} initiatorId - The participant id of the requester.
+ * @returns {Object} - The open dialog action.
+ */
+export function openAllowToggleCameraDialog(onAllow: Function, initiatorId: string) {
+    return openDialog(AllowToggleCameraDialog, {
+        onAllow,
+        initiatorId
+    });
+}

react/features/base/tracks/components/web/AllowToggleCameraDialog.tsx

@@ -0,0 +1,44 @@
+import React from 'react';
+import { WithTranslation } from 'react-i18next';
+import { useSelector } from 'react-redux';
+
+import { IReduxState } from '../../../../app/types';
+import { translate } from '../../../i18n/functions';
+import { getParticipantDisplayName } from '../../../participants/functions';
+import Dialog from '../../../ui/components/web/Dialog';
+
+
+interface IProps extends WithTranslation {
+
+    /**
+     * The participant id of the toggle camera requester.
+     */
+    initiatorId: string;
+
+    /**
+     * Function to be invoked after permission to toggle camera granted.
+     */
+    onAllow: () => void;
+}
+
+/**
+ * Dialog to allow toggling camera remotely.
+ *
+ * @returns {JSX.Element} - The allow toggle camera dialog.
+ */
+const AllowToggleCameraDialog = ({ onAllow, t, initiatorId }: IProps): JSX.Element => {
+    const initiatorName = useSelector((state: IReduxState) => getParticipantDisplayName(state, initiatorId));
+
+    return (
+        <Dialog
+            ok = {{ translationKey: 'dialog.allow' }}
+            onSubmit = { onAllow }
+            titleKey = 'dialog.allowToggleCameraTitle'>
+            <div>
+                { t('dialog.allowToggleCameraDialog', { initiatorName }) }
+            </div>
+        </Dialog>
+    );
+};
+
+export default translate(AllowToggleCameraDialog);

react/features/base/tracks/constants.ts

@@ -0,0 +1,4 @@
+/**
+ * The payload name for remotely setting the camera facing mode message.
+ */
+export const CAMERA_FACING_MODE_MESSAGE = 'camera-facing-mode-message';

react/features/conference/middleware.native.ts

@@ -0,0 +1 @@
+import './middleware.any';

react/features/conference/middleware.web.ts

@@ -0,0 +1,45 @@
+
+import { CONFERENCE_JOINED } from '../base/conference/actionTypes';
+import { IJitsiConference } from '../base/conference/reducer';
+import { JitsiConferenceEvents } from '../base/lib-jitsi-meet';
+import MiddlewareRegistry from '../base/redux/MiddlewareRegistry';
+import { openAllowToggleCameraDialog, setCameraFacingMode } from '../base/tracks/actions.web';
+import { CAMERA_FACING_MODE_MESSAGE } from '../base/tracks/constants';
+
+import './middleware.any';
+
+MiddlewareRegistry.register(_store => next => action => {
+    switch (action.type) {
+    case CONFERENCE_JOINED: {
+        _addSetCameraFacingModeListener(action.conference);
+        break;
+    }
+    }
+
+    return next(action);
+});
+
+/**
+ * Registers listener for {@link JitsiConferenceEvents.ENDPOINT_MESSAGE_RECEIVED} that
+ * will perform various chat related activities.
+ *
+ * @param {IJitsiConference} conference - The conference.
+ * @returns {void}
+ */
+function _addSetCameraFacingModeListener(conference: IJitsiConference) {
+    conference.on(
+        JitsiConferenceEvents.ENDPOINT_MESSAGE_RECEIVED,
+        (...args: any) => {
+            if (args && args.length >= 2) {
+                const [ sender, eventData ] = args;
+
+                if (eventData.name === CAMERA_FACING_MODE_MESSAGE) {
+                    APP.store.dispatch(openAllowToggleCameraDialog(
+                        /* onAllow */ () => APP.store.dispatch(setCameraFacingMode(eventData.facingMode)),
+                        /* initiatorId */ sender._id
+                    ));
+                }
+            }
+        }
+    );
+}