feat: Show cc button for ongoing transcribed meetings for guests

react/features/subtitles/components/AbstractClosedCaptionButton.js

@@ -85,7 +85,12 @@ export class AbstractClosedCaptionButton
 export function _abstractMapStateToProps(state: Object, ownProps: Object) {
     const { _requestingSubtitles } = state['features/subtitles'];
     const { transcribingEnabled } = state['features/base/config'];
-    const { visible = Boolean(transcribingEnabled && isLocalParticipantModerator(state)) } = ownProps;
+    const { isTranscribing } = state['features/transcribing'];
+
+    // if the participant is moderator, it can enable transcriptions and if
+    // transcriptions are already started for the meeting, guests can just show them
+    const { visible = Boolean(transcribingEnabled
+        && (isLocalParticipantModerator(state) || isTranscribing)) } = ownProps;
 
     return {
         _requestingSubtitles,

react/features/subtitles/components/ClosedCaptionButton.native.js

@@ -31,14 +31,12 @@ class ClosedCaptionButton
  * @returns {Props}
  */
 export function mapStateToProps(state: Object, ownProps: Object) {
-    const { transcribingEnabled } = state['features/base/config'];
-    const { isGuest = true } = state['features/base/jwt'];
-    const enabled = getFeatureFlag(state, CLOSE_CAPTIONS_ENABLED, true) && transcribingEnabled && !isGuest;
-    const { visible = enabled } = ownProps;
+    const enabled = getFeatureFlag(state, CLOSE_CAPTIONS_ENABLED, true);
+    const abstractProps = _abstractMapStateToProps(state, ownProps);
 
     return {
-        ..._abstractMapStateToProps(state, ownProps),
-        visible
+        ...abstractProps,
+        visible: abstractProps.visible && enabled
     };
 }