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

react/features/base/redux/ReducerRegistry.ts

@@ -0,0 +1,62 @@
+import { Action, type Reducer, combineReducers } from 'redux';
+
+/**
+ * The type of the dictionary/map which associates a reducer (function) with the
+ * name of he Redux state property managed by the reducer.
+ */
+type NameReducerMap<S> = { [name: string]: Reducer<S, Action<any>>; };
+
+/**
+ * A registry for Redux reducers, allowing features to register themselves
+ * without needing to create additional inter-feature dependencies.
+ */
+class ReducerRegistry {
+    _elements: NameReducerMap<any>;
+
+    /**
+     * Creates a ReducerRegistry instance.
+     */
+    constructor() {
+        /**
+         * The set of registered reducers, keyed based on the field each reducer
+         * will manage.
+         *
+         * @private
+         * @type {NameReducerMap}
+         */
+        this._elements = {};
+    }
+
+    /**
+     * Combines all registered reducers into a single reducing function.
+     *
+     * @param {Object} [additional={}] - Any additional reducers that need to be
+     * included (such as reducers from third-party modules).
+     * @returns {Function}
+     */
+    combineReducers(additional: NameReducerMap<any> = {}) {
+        return combineReducers({
+            ...this._elements,
+            ...additional
+        });
+    }
+
+    /**
+     * Adds a reducer to the registry.
+     *
+     * The method is to be invoked only before {@link #combineReducers()}.
+     *
+     * @param {string} name - The field in the state object that will be managed
+     * by the provided reducer.
+     * @param {Reducer} reducer - A Redux reducer.
+     * @returns {void}
+     */
+    register<S>(name: string, reducer: Reducer<S, any>) {
+        this._elements[name] = reducer;
+    }
+}
+
+/**
+ * The public singleton instance of the ReducerRegistry class.
+ */
+export default new ReducerRegistry();