Webrtc client side (#4026)

* WebRTC Server side

* WebRTC client side

* Bug fixes and improvements

* Pushing UI improvements for webrtc (#3728)

* Pushing UI improvements for webrtc

* Updating webrtc css

* PLT-3943 WebRTC P1: bug fixes and improvements

* Video resolution set to std, reduce volume of ringtone and flip video horizontally

* Fix calling a user B while WebRTC RHS is still opened

* Leave RHS opened when call ends, Fix isBusy on popover and channel_header

* Fix pre-release feature, RHS & System Console

* PLT-3945 - Updating UI for webrtc (#3908)

* PLT-3943 Webrtc p1

* Add ongoing call indicator when RHS is opened

* UI updates to to webrtc notifcation (#3959)

webapp/components/user_settings/user_settings_advanced.jsx

@@ -33,7 +33,7 @@ export default class AdvancedSettingsDisplay extends React.Component {
     }
 
     getStateFromStores() {
-        const preReleaseFeaturesKeys = Object.keys(PreReleaseFeatures);
+        let preReleaseFeaturesKeys = Object.keys(PreReleaseFeatures);
         const advancedSettings = PreferenceStore.getCategory(Constants.Preferences.CATEGORY_ADVANCED_SETTINGS);
         const settings = {
             send_on_ctrl_enter: PreferenceStore.get(
@@ -55,6 +55,13 @@ export default class AdvancedSettingsDisplay extends React.Component {
 
         let enabledFeatures = 0;
         for (const [name, value] of advancedSettings) {
+            const webrtcEnabled = global.mm_config.EnableWebrtc === 'true' && global.mm_license.Webrtc === 'true' &&
+                global.mm_config.EnableDeveloper === 'true';
+
+            if (!webrtcEnabled) {
+                preReleaseFeaturesKeys = preReleaseFeaturesKeys.filter((f) => f !== 'WEBRTC_PREVIEW');
+            }
+
             for (const key of preReleaseFeaturesKeys) {
                 const feature = PreReleaseFeatures[key];
 
@@ -329,6 +336,13 @@ export default class AdvancedSettingsDisplay extends React.Component {
                     defaultMessage='Show experimental previews of link content, when available'
                 />
             );
+        case 'WEBRTC_PREVIEW':
+            return (
+                <FormattedMessage
+                    id='user.settings.advance.webrtc_preview'
+                    defaultMessage='Enable the ability to make and receive one-on-one WebRTC calls'
+                />
+            );
         default:
             return null;
         }