fix(speaker-stats) decouple sort order from speaker stats (#12197)

react/features/speaker-stats/actionTypes.ts

@@ -29,6 +29,14 @@ export const INIT_UPDATE_STATS = 'INIT_UPDATE_STATS';
  */
 export const UPDATE_STATS = 'UPDATE_STATS';
 
+/**
+ * Action type to update the speaker stats order.
+ * {
+ *     type: UPDATE_SORTED_SPEAKER_STATS_IDS  
+ * }
+ */
+export const UPDATE_SORTED_SPEAKER_STATS_IDS = 'UPDATE_SORTED_SPEAKER_STATS_IDS'
+
 /**
  * Action type to initiate reordering of the stats.
  *

react/features/speaker-stats/actions.any.js

@@ -6,6 +6,7 @@ import {
     INIT_UPDATE_STATS,
     RESET_SEARCH_CRITERIA,
     TOGGLE_FACE_EXPRESSIONS,
+    UPDATE_SORTED_SPEAKER_STATS_IDS,
     UPDATE_STATS
 } from './actionTypes';
 
@@ -48,6 +49,19 @@ export function updateStats(stats: Object) {
     };
 }
 
+/**
+ * Updates the speaker stats order.
+ *
+ * @param {Object} participantIds - Participant ids.
+ * @returns {Object}
+ */
+export function updateSortedSpeakerStatsIds(participantIds: Array<string>) {
+    return {
+        type: UPDATE_SORTED_SPEAKER_STATS_IDS,
+        participantIds
+    };
+}
+
 /**
  * Initiates reordering of the stats.
  *

react/features/speaker-stats/components/AbstractSpeakerStatsList.js

@@ -21,7 +21,11 @@ const abstractSpeakerStatsList = (speakerStatsItem: Function, itemStyles?: Objec
     const dispatch = useDispatch();
     const { t } = useTranslation();
     const conference = useSelector(state => state['features/base/conference'].conference);
-    const { stats: speakerStats, showFaceExpressions } = useSelector(state => state['features/speaker-stats']);
+    const {
+        stats: speakerStats,
+        showFaceExpressions,
+        sortedSpeakerStatsIds
+    } = useSelector(state => state['features/speaker-stats']);
     const localParticipant = useSelector(getLocalParticipant);
     const { defaultRemoteDisplayName } = useSelector(
         state => state['features/base/config']) || {};
@@ -80,7 +84,10 @@ const abstractSpeakerStatsList = (speakerStatsItem: Function, itemStyles?: Objec
     }, [ faceExpressions ]);
 
     const localSpeakerStats = Object.keys(speakerStats).length === 0 ? getSpeakerStats() : speakerStats;
-    const userIds = Object.keys(localSpeakerStats).filter(id => localSpeakerStats[id] && !localSpeakerStats[id].hidden);
+    const localSortedSpeakerStatsIds
+        = sortedSpeakerStatsIds.length === 0 ? Object.keys(localSpeakerStats) : sortedSpeakerStatsIds;
+
+    const userIds = localSortedSpeakerStatsIds.filter(id => localSpeakerStats[id] && !localSpeakerStats[id].hidden);
 
     return userIds.map(userId => {
         const statsModel = localSpeakerStats[userId];

react/features/speaker-stats/functions.js

@@ -6,7 +6,6 @@ import {
     PARTICIPANT_ROLE,
     getParticipantById
 } from '../base/participants';
-import { objectSort } from '../base/util';
 
 /**
  * Checks if the speaker stats search is disabled.
@@ -63,19 +62,33 @@ export function getPendingReorder(state: Object) {
 }
 
 /**
- * Get sorted speaker stats based on a configuration setting.
+ * Get sorted speaker stats ids based on a configuration setting.
  *
  * @param {Object} state - The redux state.
  * @param {Object} stats - The current speaker stats.
- * @returns {Object} - Ordered speaker stats.
+ * @returns {Object} - Ordered speaker stats ids.
  * @public
  */
-export function getSortedSpeakerStats(state: Object, stats: Object) {
+export function getSortedSpeakerStatsIds(state: Object, stats: Object) {
     const orderConfig = getSpeakerStatsOrder(state);
 
     if (orderConfig) {
         const enhancedStats = getEnhancedStatsForOrdering(state, stats, orderConfig);
-        const sortedStats = objectSort(enhancedStats, (currentParticipant, nextParticipant) => {
+
+        return Object.entries(enhancedStats)
+            .sort(([ , a ], [ , b ]) => compareFn(a, b))
+            .map(el => el[0]);
+    }
+
+    /**
+     *
+     * Compares the order of two participants in the speaker stats list.
+     *
+     * @param {Object} currentParticipant - The first participant for comparison.
+     * @param {Object} nextParticipant - The second participant for comparison.
+     * @returns {number} - The sort order of the two participants.
+     */
+    function compareFn(currentParticipant, nextParticipant) {
         if (orderConfig.includes('hasLeft')) {
             if (nextParticipant.hasLeft() && !currentParticipant.hasLeft()) {
                 return -1;
@@ -110,9 +123,6 @@ export function getSortedSpeakerStats(state: Object, stats: Object) {
         }
 
         return result;
-        });
-
-        return sortedStats;
     }
 }
 

react/features/speaker-stats/middleware.js

@@ -13,8 +13,8 @@ import {
     INIT_UPDATE_STATS,
     RESET_SEARCH_CRITERIA
 } from './actionTypes';
-import { initReorderStats, updateStats } from './actions';
-import { filterBySearchCriteria, getPendingReorder, getSortedSpeakerStats, resetHiddenStats } from './functions';
+import { initReorderStats, updateSortedSpeakerStatsIds, updateStats } from './actions';
+import { filterBySearchCriteria, getPendingReorder, getSortedSpeakerStatsIds, resetHiddenStats } from './functions';
 
 MiddlewareRegistry.register(({ dispatch, getState }) => next => action => {
     const result = next(action);
@@ -35,8 +35,13 @@ MiddlewareRegistry.register(({ dispatch, getState }) => next => action => {
             const stats = filterBySearchCriteria(state, speakerStats);
             const pendingReorder = getPendingReorder(state);
 
-            dispatch(updateStats(pendingReorder ? getSortedSpeakerStats(state, stats) : stats));
+            if (pendingReorder) {
+                dispatch(updateSortedSpeakerStatsIds(getSortedSpeakerStatsIds(state, stats)));
             }
+
+            dispatch(updateStats(stats));
+        }
+
         break;
 
     case RESET_SEARCH_CRITERIA: {

react/features/speaker-stats/reducer.ts

@@ -7,6 +7,7 @@ import {
     INIT_SEARCH,
     RESET_SEARCH_CRITERIA,
     TOGGLE_FACE_EXPRESSIONS,
+    UPDATE_SORTED_SPEAKER_STATS_IDS,
     UPDATE_STATS
 } from './actionTypes';
 
@@ -20,7 +21,8 @@ const INITIAL_STATE = {
     isOpen: false,
     pendingReorder: true,
     criteria: null,
-    showFaceExpressions: false
+    showFaceExpressions: false,
+    sortedSpeakerStatsIds: []
 };
 
 export interface ISpeakerStatsState {
@@ -28,6 +30,7 @@ export interface ISpeakerStatsState {
     isOpen: boolean;
     pendingReorder: boolean;
     showFaceExpressions: boolean;
+    sortedSpeakerStatsIds: Array<string>;
     stats: Object;
 }
 
@@ -40,6 +43,8 @@ ReducerRegistry.register<ISpeakerStatsState>('features/speaker-stats',
         return _updateStats(state, action);
     case INIT_REORDER_STATS:
         return _initReorderStats(state);
+    case UPDATE_SORTED_SPEAKER_STATS_IDS:
+        return _updateSortedSpeakerStats(state, action);
     case RESET_SEARCH_CRITERIA:
         return _updateCriteria(state, { criteria: null });
     case TOGGLE_FACE_EXPRESSIONS: {
@@ -71,13 +76,7 @@ function _updateCriteria(state: ISpeakerStatsState, { criteria }: { criteria: st
 }
 
 /**
- * Reduces a specific Redux action UPDATE_STATS of the feature
- * speaker-stats.
- * The speaker stats order is based on the stats object properties.
- * When updating without reordering, the new stats object properties are reordered
- * as the last in state, otherwise the order would be lost on each update.
- * If there was already a pending reorder, the stats object properties already have
- * the correct order, so the property order is not changing.
+ * Reduces a specific Redux action UPDATE_STATS of the feature speaker-stats.
  *
  * @param {Object} state - The Redux state of the feature speaker-stats.
  * @param {Action} action - The Redux action UPDATE_STATS to reduce.
@@ -85,31 +84,26 @@ function _updateCriteria(state: ISpeakerStatsState, { criteria }: { criteria: st
  * @returns {Object} - The new state after the reduction of the specified action.
  */
 function _updateStats(state: ISpeakerStatsState, { stats }: { stats: any; }) {
-    const finalStats = state.pendingReorder ? stats : state.stats;
-
-    if (!state.pendingReorder) {
-        // Avoid reordering the speaker stats object properties
-        const finalKeys = Object.keys(stats);
-
-        finalKeys.forEach(newStatId => {
-            finalStats[newStatId] = _.clone(stats[newStatId]);
-        });
-
-        Object.keys(finalStats).forEach(key => {
-            if (!finalKeys.includes(key)) {
-                delete finalStats[key];
-            }
-        });
+    return {
+        ...state,
+        stats
+    };
 }
 
-    return _.assign(
-        {},
-        state,
-        {
-            stats: { ...finalStats },
+/**
+ * Reduces a specific Redux action UPDATE_SORTED_SPEAKER_STATS_IDS of the feature speaker-stats.
+ *
+ * @param {Object} state - The Redux state of the feature speaker-stats.
+ * @param {Action} action - The Redux action UPDATE_SORTED_SPEAKER_STATS_IDS to reduce.
+ * @private
+ * @returns {Object} The new state after the reduction of the specified action.
+ */
+function _updateSortedSpeakerStats(state: ISpeakerStatsState, { participantIds }: { participantIds: Array<string>; }) {
+    return {
+        ...state,
+        sortedSpeakerStatsIds: participantIds,
         pendingReorder: false
-        }
-    );
+    };
 }
 
 /**