From e0df45630f1641ed8453d41fa25fdaba84db9d35 Mon Sep 17 00:00:00 2001
From: Ruben Rodriguez <ruben@gnu.org>
Date: Wed, 10 Mar 2021 15:47:43 -0500
Subject: [PATCH] Fix failure when no webcam is present

---
 front/src/WebRtc/MediaManager.ts | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

diff --git a/front/src/WebRtc/MediaManager.ts b/front/src/WebRtc/MediaManager.ts
index 9e85c6a..27732ff 100644
--- a/front/src/WebRtc/MediaManager.ts
+++ b/front/src/WebRtc/MediaManager.ts
@@ -113,22 +113,24 @@ export class MediaManager {
     getCamera() {
         let promise = null;
         try {
-            promise = navigator.mediaDevices.getUserMedia(this.constraintsMedia)
-                .then((stream: MediaStream) => {
-                    this.localStream = stream;
-                    this.myCamVideo.srcObject = this.localStream;
+            promise = navigator.mediaDevices.enumerateDevices()
+                .then(devices => {
+                    let cams = devices.filter(device => device.kind == "videoinput");
+                    if (cams.length == 0){
+                        this.constraintsMedia.video = false;
+                        document.getElementsByClassName("btn-video")[0].style.display = "none";
+                        document.getElementById("div-myCamVideo").style.display = "none";
+                    }
+                    return navigator.mediaDevices.getUserMedia(this.constraintsMedia).then((stream: MediaStream) => {
+                        this.localStream = stream;
+                        this.myCamVideo.srcObject = this.localStream;
+                        return stream;
+                    }).catch((err) => {
+                        console.info(`error get media {video: ${this.constraintsMedia.video}},{audio: ${this.constraintsMedia.audio}}`,err);
+                        this.localStream = null;
+                    })
+                })
 
-                    //TODO resize remote cam
-                    /*console.log(this.localStream.getTracks());
-                    let videoMediaStreamTrack =  this.localStream.getTracks().find((media : MediaStreamTrack) => media.kind === "video");
-                    let {width, height} = videoMediaStreamTrack.getSettings();
-                    console.info(`${width}x${height}`); // 6*/
-
-                    return stream;
-                }).catch((err) => {
-                    console.info(`error get media {video: ${this.constraintsMedia.video}},{audio: ${this.constraintsMedia.audio}}`,err);
-                    this.localStream = null;
-                });
         } catch (e) {
             promise = Promise.reject(false);
         }
-- 
2.25.1