Fix mirror sender and use getDisplayMedia

ext/src/global.d.ts

@@ -29,13 +29,17 @@ declare interface HTMLCanvasElement {
 }
 
 declare interface MediaTrackConstraints {
-    mediaSource: "screen" | "window";
+    cursor: "always" | "motion" | "never";
 }
 
 declare interface RTCPeerConnection {
     addStream (mediaStream: MediaStream): void;
 }
 
+declare interface MediaDevices {
+     getDisplayMedia(constraints: MediaStreamConstraints): Promise<MediaStream>;
+}
+
 
 interface CloneIntoOptions {
     cloneFunctions?: boolean;

ext/src/main.ts

@@ -646,39 +646,8 @@ async function onConnectShim (port: browser.runtime.Port) {
         : ReceiverSelectorType.Popup);
 
 
-    // Media type for initial opener sender
-    let openerMediaType: ReceiverSelectorMediaType;
-
     function onReceiverSelectorSelected (
             ev: ReceiverSelectorSelectedEvent) {
-
-        /**
-         * If the media type returned from the selector has been
-         * changed, we need to cancel the current sender and switch
-         * it out for the right one.
-         *
-         * TODO: Seamlessly connect selector to the new sender
-         */
-        if (ev.detail.mediaType !== openerMediaType) {
-            onReceiverSelectorCancelled();
-
-            switch (ev.detail.mediaType) {
-                case ReceiverSelectorMediaType.App: {
-                    // TODO: Keep track of page apps
-                    break;
-                }
-
-                case ReceiverSelectorMediaType.Screen:
-                case ReceiverSelectorMediaType.Tab: {
-                    loadMirrorCastSender(tabId, frameId, ev.detail.mediaType);
-                    break;
-                }
-            }
-
-            return;
-        }
-
-
         port.postMessage({
             subject: "shim:/selectReceiverEnd"
           , data: ev.detail
@@ -781,10 +750,9 @@ async function onConnectShim (port: browser.runtime.Port) {
             }
 
             case "main:/selectReceiverBegin": {
-                openerMediaType = message.data.defaultMediaType;
                 receiverSelector.open(
                         Array.from(statusBridgeReceivers.values())
-                      , openerMediaType);
+                      , message.data.defaultMediaType);
                 break;
             }
 

ext/src/senders/mirroringCast.ts

@@ -119,8 +119,9 @@ async function onRequestSessionSuccess (
 
         case ReceiverSelectorMediaType.Screen: {
 
-            const stream = await navigator.mediaDevices.getUserMedia({
+            const stream = await navigator.mediaDevices.getDisplayMedia({
-                video: { mediaSource: "screen" }
+                video: { cursor: "motion" }
+              , audio: false
             });
 
             peerConnection.addStream(stream);

ext/src/shim/cast/index.ts

@@ -262,7 +262,7 @@ onMessage(async message => {
 
                             sessionSuccessCallback(
                                     session
-                                  , message.data.selectedMedia);
+                                  , message.data.mediaType);
                         }));
             }