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

react/features/power-monitor/middleware.ts

@@ -0,0 +1,68 @@
+// @ts-expect-error
+import { PostMessageTransportBackend, Transport } from '../../../modules/transport';
+import {
+    CONFERENCE_JOINED,
+    CONFERENCE_LEFT
+} from '../base/conference/actionTypes';
+import MiddlewareRegistry from '../base/redux/MiddlewareRegistry';
+import { destroyLocalTracks } from '../base/tracks/actions';
+
+import { SUSPEND_DETECTED } from './actionTypes';
+import {
+    setTransport,
+    suspendDetected
+} from './actions';
+
+MiddlewareRegistry.register(store => next => action => {
+    const result = next(action);
+    const { dispatch, getState } = store;
+
+    switch (action.type) {
+    case CONFERENCE_JOINED: {
+
+        // listens for messages about suspend from power-monitor
+        const transport = new Transport({
+            backend: new PostMessageTransportBackend({
+                postisOptions: { scope: 'jitsi-power-monitor' }
+            })
+        });
+
+        transport.on('event', (event: { event: string; name: string; }) => {
+            if (event && event.name === 'power-monitor' && event.event === 'suspend') {
+
+                dispatch(suspendDetected());
+
+                return true;
+            }
+
+            return false;
+        });
+
+        dispatch(setTransport(transport));
+        break;
+    }
+
+    case CONFERENCE_LEFT: {
+        const { transport } = getState()['features/power-monitor'];
+
+        if (transport) {
+            transport.dispose();
+        }
+
+        dispatch(setTransport());
+        break;
+    }
+
+    case SUSPEND_DETECTED: {
+        dispatch(destroyLocalTracks());
+
+        // FIXME: when refactoring conference.js
+        APP.conference.onSuspendDetected();
+
+        APP.API.notifySuspendDetected();
+        break;
+    }
+    }
+
+    return result;
+});