Passage à ASP.NET vNext

Yavsc/wwwroot/desktopCaptureExtension/background.js

@@ -0,0 +1,41 @@
+'use strict';
+
+var dataSources = ['screen', 'window'];
+var desktopMediaRequestId = '';
+
+chrome.runtime.onConnect.addListener(function(port) {
+  port.onMessage.addListener(function(msg) {
+    if (msg.type === 'SS_UI_REQUEST') {
+      requestScreenSharing(port, msg);
+    }
+
+    if (msg.type === 'SS_UI_CANCEL') {
+      cancelScreenSharing(msg);
+    }
+  });
+});
+
+function requestScreenSharing(port, msg) {
+  // https://developer.chrome.com/extensions/desktopCapture
+  // params:
+  //  - 'dataSources' Set of sources that should be shown to the user.
+  //  - 'targetTab' Tab for which the stream is created.
+  //  - 'streamId' String that can be passed to getUserMedia() API
+  desktopMediaRequestId =
+      chrome.desktopCapture.chooseDesktopMedia(dataSources, port.sender.tab,
+          function(streamId) {
+            if (streamId) {
+              msg.type = 'SS_DIALOG_SUCCESS';
+              msg.streamId = streamId;
+            } else {
+              msg.type = 'SS_DIALOG_CANCEL';
+            }
+            port.postMessage(msg);
+          });
+}
+
+function cancelScreenSharing() {
+  if (desktopMediaRequestId) {
+    chrome.desktopCapture.cancelChooseDesktopMedia(desktopMediaRequestId);
+  }
+}