Fix mirror casting

ext/src/main.ts

@@ -440,7 +440,9 @@ browser.menus.onClicked.addListener(async (info, tab) => {
 
                 await browser.tabs.executeScript(tab.id, {
                     code: `
-                        var selectedMedia = "${info.pageUrl ? "tab" : "screen"}";
+                        var selectedMedia = ${info.pageUrl
+                            ? ReceiverSelectorMediaType.Tab
+                            : ReceiverSelectorMediaType.Screen};
                         var FX_CAST_RECEIVER_APP_ID = "${options.mirroringAppId}";
                     `
                   , frameId
@@ -595,9 +597,7 @@ async function onConnectShim (port: browser.runtime.Port) {
 
         port.postMessage({
             subject: "shim:/selectReceiverEnd"
-          , data: {
-                receiver: ev.detail.receiver
-            }
+          , data: ev.detail
         });
     }
 

ext/src/mirroringCast.js

@@ -1,5 +1,8 @@
 "use strict";
 
+import { ReceiverSelectorMediaType }
+        from "./receiverSelectorManager/ReceiverSelectorManager":
+
 let chrome;
 let logMessage;
 
@@ -70,7 +73,7 @@ async function onRequestSessionSuccess (session_, selectedMedia) {
     });
 
     switch (selectedMedia) {
-        case "tab":
+        case ReceiverSelectorMediaType.Tab:
             interval = setInterval(() => {
                 ctx.clearRect(0, 0, canvas.width, canvas.height);
                 ctx.drawWindow(
@@ -85,7 +88,7 @@ async function onRequestSessionSuccess (session_, selectedMedia) {
             pc.addStream(canvas.captureStream());
             break;
 
-        case "screen":
+        case ReceiverSelectorMediaType.Screen:
             const stream = await navigator.mediaDevices.getUserMedia({
                 video: { mediaSource: "window" }
             });