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

react/features/screen-share/functions.ts

@@ -0,0 +1,58 @@
+import { IReduxState } from '../app/types';
+import { isWindows } from '../base/environment/environment';
+import { isMobileBrowser } from '../base/environment/utils';
+import { browser } from '../base/lib-jitsi-meet';
+import { getLocalDesktopTrack } from '../base/tracks/functions';
+
+/**
+ * Is the current screen sharing session audio only.
+ *
+ * @param {IReduxState} state - The state of the application.
+ * @returns {boolean}
+ */
+export function isAudioOnlySharing(state: IReduxState) {
+    return isScreenAudioShared(state) && !isScreenVideoShared(state);
+}
+
+/**
+ * State of audio sharing.
+ *
+ * @param {IReduxState} state - The state of the application.
+ * @returns {boolean}
+ */
+export function isScreenAudioShared(state: IReduxState) {
+    return state['features/screen-share'].isSharingAudio;
+}
+
+/**
+ * Returns the visibility of the audio only screen share button. Currently only chrome browser and electron on
+ * windows supports this functionality.
+ *
+ * @returns {boolean}
+ */
+export function isScreenAudioSupported() {
+    return (!isMobileBrowser() && browser.isChromiumBased()) || (browser.isElectron() && isWindows());
+}
+
+/**
+ * Is any screen media currently being shared, audio or video.
+ *
+ * @param {IReduxState} state - The state of the application.
+ * @returns {boolean}
+ */
+export function isScreenMediaShared(state: IReduxState) {
+    return isScreenAudioShared(state) || isScreenVideoShared(state);
+}
+
+/**
+ * Is screen sharing currently active.
+ *
+ * @param {IReduxState} state - The state of the application.
+ * @returns {boolean}
+ */
+export function isScreenVideoShared(state: IReduxState) {
+    const tracks = state['features/base/tracks'];
+    const localScreenshare = getLocalDesktopTrack(tracks);
+
+    return localScreenshare?.jitsiTrack && !localScreenshare.jitsiTrack.isMuted();
+}