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

react/features/video-layout/reducer.ts

@@ -0,0 +1,63 @@
+import ReducerRegistry from '../base/redux/ReducerRegistry';
+
+import {
+    SET_CAR_MODE,
+    SET_TILE_VIEW,
+    VIRTUAL_SCREENSHARE_REMOTE_PARTICIPANTS_UPDATED
+} from './actionTypes';
+
+const DEFAULT_STATE = {
+    /**
+     * Whether we are in carmode.
+     *
+     * @public
+     * @type {boolean}
+     */
+    carMode: false,
+
+    remoteScreenShares: [],
+
+    /**
+     * The indicator which determines whether the video layout should display
+     * video thumbnails in a tiled layout.
+     *
+     * Note: undefined means that the user hasn't requested anything in particular yet, so
+     * we use our auto switching rules.
+     *
+     * @public
+     * @type {boolean}
+     */
+    tileViewEnabled: undefined
+};
+
+export interface IVideoLayoutState {
+    carMode: boolean;
+    remoteScreenShares: string[];
+    tileViewEnabled?: boolean;
+}
+
+const STORE_NAME = 'features/video-layout';
+
+ReducerRegistry.register<IVideoLayoutState>(STORE_NAME, (state = DEFAULT_STATE, action): IVideoLayoutState => {
+    switch (action.type) {
+    case VIRTUAL_SCREENSHARE_REMOTE_PARTICIPANTS_UPDATED:
+        return {
+            ...state,
+            remoteScreenShares: action.participantIds
+        };
+
+    case SET_CAR_MODE:
+        return {
+            ...state,
+            carMode: action.enabled
+        };
+
+    case SET_TILE_VIEW:
+        return {
+            ...state,
+            tileViewEnabled: action.enabled
+        };
+    }
+
+    return state;
+});