snapshot of https://github.com/jitsi/jitsi-meet.git @ fd1749dd28f4138aa80234fc7f311b19aaffa0e7 (2026-09-15)

react/features/base/settings/middleware.web.ts

@@ -0,0 +1,85 @@
+import { IStore } from '../../app/types';
+import { PREJOIN_INITIALIZED } from '../../prejoin/actionTypes';
+import { getJwtName } from '../jwt/functions';
+import { MEDIA_TYPE } from '../media/constants';
+import MiddlewareRegistry from '../redux/MiddlewareRegistry';
+import { TRACK_ADDED } from '../tracks/actionTypes';
+import { ITrack } from '../tracks/types';
+
+import { updateSettings } from './actions';
+import logger from './logger';
+
+
+import './middleware.any';
+
+/**
+ * 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 PREJOIN_INITIALIZED:
+        _maybeUpdateDisplayName(store);
+        break;
+    case TRACK_ADDED:
+        _maybeUpdateDeviceId(store, action.track);
+        break;
+    }
+
+    return result;
+});
+
+/**
+ * Updates the display name to the one in JWT if there is one.
+ *
+ * @param {Store} store - The redux store.
+ * @private
+ * @returns {void}
+ */
+function _maybeUpdateDisplayName({ dispatch, getState }: IStore) {
+    const state = getState();
+    const hasJwt = Boolean(state['features/base/jwt'].jwt);
+
+    if (hasJwt) {
+        const displayName = getJwtName(state);
+
+        if (displayName) {
+            dispatch(updateSettings({
+                displayName
+            }));
+        }
+    }
+}
+
+/**
+ * Maybe update the camera or mic device id when local track is added or updated.
+ *
+ * @param {Store} store - The redux store.
+ * @param {ITrack} track - The potential local track.
+ * @private
+ * @returns {void}
+ */
+function _maybeUpdateDeviceId({ dispatch, getState }: IStore, track: ITrack) {
+    if (track.local) {
+        const { cameraDeviceId, micDeviceId } = getState()['features/base/settings'];
+        const deviceId = track.jitsiTrack.getDeviceId();
+
+        if (track.mediaType === MEDIA_TYPE.VIDEO && track.videoType === 'camera' && cameraDeviceId !== deviceId) {
+            dispatch(updateSettings({
+                cameraDeviceId: track.jitsiTrack.getDeviceId()
+            }));
+            logger.info(`switched local video device to: ${deviceId}`);
+        } else if (track.mediaType === MEDIA_TYPE.AUDIO && micDeviceId !== deviceId) {
+            dispatch(updateSettings({
+                micDeviceId: track.jitsiTrack.getDeviceId()
+            }));
+            logger.info(`switched local audio input device to: ${deviceId}`);
+        }
+    }
+}