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

react/features/speaker-stats/reducer.ts

@@ -0,0 +1,188 @@
+import { assign } from 'lodash-es';
+
+import ReducerRegistry from '../base/redux/ReducerRegistry';
+import { FaceLandmarks } from '../face-landmarks/types';
+
+import {
+    ADD_TO_OFFSET,
+    ADD_TO_OFFSET_LEFT,
+    ADD_TO_OFFSET_RIGHT,
+    INIT_REORDER_STATS,
+    INIT_SEARCH,
+    RESET_SEARCH_CRITERIA,
+    SET_PANNING,
+    SET_TIMELINE_BOUNDARY,
+    TOGGLE_FACE_EXPRESSIONS,
+    UPDATE_SORTED_SPEAKER_STATS_IDS,
+    UPDATE_STATS
+} from './actionTypes';
+
+/**
+ * The initial state of the feature speaker-stats.
+ *
+ * @type {Object}
+ */
+const INITIAL_STATE = {
+    stats: {},
+    isOpen: false,
+    pendingReorder: true,
+    criteria: null,
+    showFaceExpressions: false,
+    sortedSpeakerStatsIds: [],
+    timelineBoundary: null,
+    offsetLeft: 0,
+    offsetRight: 0,
+    timelinePanning: {
+        active: false,
+        x: 0
+    }
+};
+
+export interface ISpeaker {
+    addFaceLandmarks: (faceLandmarks: FaceLandmarks) => void;
+    displayName?: string;
+    getDisplayName: () => string;
+    getFaceLandmarks: () => FaceLandmarks[];
+    getTotalDominantSpeakerTime: () => number;
+    getUserId: () => string;
+    hasLeft: () => boolean;
+    hidden?: boolean;
+    isDominantSpeaker: () => boolean;
+    isLocalStats: () => boolean;
+    isModerator?: boolean;
+    markAsHasLeft: () => boolean;
+    setDisplayName: (newName: string) => void;
+    setDominantSpeaker: (isNowDominantSpeaker: boolean, silence: boolean) => void;
+    setFaceLandmarks: (faceLandmarks: FaceLandmarks[]) => void;
+}
+
+export interface ISpeakerStats {
+    [key: string]: ISpeaker;
+}
+
+export interface ISpeakerStatsState {
+    criteria: string | null;
+    isOpen: boolean;
+    offsetLeft: number;
+    offsetRight: number;
+    pendingReorder: boolean;
+    showFaceExpressions: boolean;
+    sortedSpeakerStatsIds: Array<string>;
+    stats: ISpeakerStats;
+    timelineBoundary: number | null;
+    timelinePanning: {
+        active: boolean;
+        x: number;
+    };
+}
+
+ReducerRegistry.register<ISpeakerStatsState>('features/speaker-stats',
+(state = INITIAL_STATE, action): ISpeakerStatsState => {
+    switch (action.type) {
+    case INIT_SEARCH:
+        return _updateCriteria(state, action);
+    case UPDATE_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: {
+        return {
+            ...state,
+            showFaceExpressions: !state.showFaceExpressions
+        };
+    }
+    case ADD_TO_OFFSET: {
+        return {
+            ...state,
+            offsetLeft: state.offsetLeft + action.value,
+            offsetRight: state.offsetRight + action.value
+        };
+    }
+    case ADD_TO_OFFSET_RIGHT: {
+        return {
+            ...state,
+            offsetRight: state.offsetRight + action.value
+        };
+    }
+    case ADD_TO_OFFSET_LEFT: {
+        return {
+            ...state,
+            offsetLeft: state.offsetLeft + action.value
+        };
+    }
+    case SET_TIMELINE_BOUNDARY: {
+        return {
+            ...state,
+            timelineBoundary: action.boundary
+        };
+    }
+    case SET_PANNING: {
+        return {
+            ...state,
+            timelinePanning: action.panning
+        };
+    }
+    }
+
+    return state;
+});
+
+/**
+ * Reduces a specific Redux action INIT_SEARCH of the feature
+ * speaker-stats.
+ *
+ * @param {Object} state - The Redux state of the feature speaker-stats.
+ * @param {Action} action - The Redux action INIT_SEARCH to reduce.
+ * @private
+ * @returns {Object} The new state after the reduction of the specified action.
+ */
+function _updateCriteria(state: ISpeakerStatsState, { criteria }: { criteria: string | null; }) {
+    return assign({}, state, { criteria });
+}
+
+/**
+ * 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.
+ * @private
+ * @returns {Object} - The new state after the reduction of the specified action.
+ */
+function _updateStats(state: ISpeakerStatsState, { stats }: { stats: any; }) {
+    return {
+        ...state,
+        stats
+    };
+}
+
+/**
+ * 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
+    };
+}
+
+/**
+ * Reduces a specific Redux action INIT_REORDER_STATS of the feature
+ * speaker-stats.
+ *
+ * @param {Object} state - The Redux state of the feature speaker-stats.
+ * @private
+ * @returns {Object} The new state after the reduction of the specified action.
+ */
+function _initReorderStats(state: ISpeakerStatsState) {
+    return assign({}, state, { pendingReorder: true });
+}