camera?

src/voice.rs

@@ -16,6 +16,7 @@ pub struct VoiceHub {
 #[derive(Clone)]
 struct ClientHandle {
     display_name: String,
+    is_sharing_video: bool,
     tx: mpsc::UnboundedSender<ServerEvent>,
 }
 
@@ -23,20 +24,34 @@ struct ClientHandle {
 pub struct VoiceParticipant {
     pub user_id: Uuid,
     pub display_name: String,
+    pub is_sharing_video: bool,
 }
 
 #[derive(Serialize, Clone)]
 #[serde(tag = "type", rename_all = "snake_case")]
 enum ServerEvent {
-    Peers { peers: Vec<VoiceParticipant> },
-    PeerJoined { user_id: Uuid, display_name: String },
-    PeerLeft { user_id: Uuid },
+    Peers {
+        peers: Vec<VoiceParticipant>,
+    },
+    PeerJoined {
+        user_id: Uuid,
+        display_name: String,
+    },
+    PeerLeft {
+        user_id: Uuid,
+    },
+    VideoStatusChanged {
+        user_id: Uuid,
+        is_sharing_video: bool,
+    },
     Signal {
         from_user_id: Uuid,
         kind: String,
         data: serde_json::Value,
     },
-    Error { message: String },
+    Error {
+        message: String,
+    },
 }
 
 #[derive(Deserialize)]
@@ -47,6 +62,9 @@ enum ClientEvent {
         kind: String,
         data: serde_json::Value,
     },
+    SetVideoStatus {
+        is_sharing_video: bool,
+    },
 }
 
 impl VoiceHub {
@@ -60,6 +78,7 @@ impl VoiceHub {
             .map(|(user_id, handle)| VoiceParticipant {
                 user_id: *user_id,
                 display_name: handle.display_name.clone(),
+                is_sharing_video: handle.is_sharing_video,
             })
             .collect()
     }
@@ -79,6 +98,7 @@ impl VoiceHub {
             .map(|(peer_id, peer)| VoiceParticipant {
                 user_id: *peer_id,
                 display_name: peer.display_name.clone(),
+                is_sharing_video: peer.is_sharing_video,
             })
             .collect::<Vec<_>>();
 
@@ -86,6 +106,7 @@ impl VoiceHub {
             user_id,
             ClientHandle {
                 display_name: display_name.clone(),
+                is_sharing_video: false,
                 tx,
             },
         );
@@ -119,7 +140,7 @@ impl VoiceHub {
         }
     }
 
-    async fn relay_signal(
+    pub async fn relay_signal(
         &self,
         room_id: Uuid,
         from_user_id: Uuid,
@@ -140,6 +161,26 @@ impl VoiceHub {
             });
         }
     }
+
+    pub async fn set_video_status(&self, room_id: Uuid, user_id: Uuid, is_sharing_video: bool) {
+        let mut rooms = self.rooms.write().await;
+        let Some(room) = rooms.get_mut(&room_id) else {
+            return;
+        };
+
+        if let Some(handle) = room.get_mut(&user_id) {
+            handle.is_sharing_video = is_sharing_video;
+
+            for (peer_id, peer) in room.iter() {
+                if *peer_id != user_id {
+                    let _ = peer.tx.send(ServerEvent::VideoStatusChanged {
+                        user_id,
+                        is_sharing_video,
+                    });
+                }
+            }
+        }
+    }
 }
 
 pub async fn handle_socket(state: AppState, socket: WebSocket, room_id: Uuid, user_id: Uuid) {
@@ -182,6 +223,12 @@ pub async fn handle_socket(state: AppState, socket: WebSocket, room_id: Uuid, us
                             .relay_signal(room_id, user_id, to_user_id, kind, data)
                             .await;
                     }
+                    Ok(ClientEvent::SetVideoStatus { is_sharing_video }) => {
+                        state
+                            .voice
+                            .set_video_status(room_id, user_id, is_sharing_video)
+                            .await;
+                    }
                     Err(err) => {
                         let _ = tx.send(ServerEvent::Error {
                             message: format!("invalid voice message: {err}"),

static/app.js

@@ -15,9 +15,11 @@ const state = {
     joinedChannelId: null,
     localStream: null,
     rawStream: null,
+    videoStream: null,
     audioContext: null,
     peerConnections: new Map(),
     muted: false,
+    sharingVideo: false,
     iceServers: [{ urls: "stun:stun.l.google.com:19302" }],
   },
   voicePresencePollId: null,
@@ -59,8 +61,10 @@ const el = {
   // Voice Connection
   voiceConnection: document.getElementById("voice-connection"),
   vcChannelName: document.getElementById("vc-channel-name"),
+  voiceVideoBtn: document.getElementById("voice-video-btn"),
   voiceMuteBtn: document.getElementById("voice-mute-btn"),
   voiceLeaveBtn: document.getElementById("voice-leave-btn"),
+  videoGrid: document.getElementById("video-grid"),
 
   // Members
   memberList: document.getElementById("member-list"),
@@ -553,6 +557,41 @@ function stopAndClearAudioPipeline() {
   state.voice.audioContext = null;
 }
 
+function stopAndClearVideoPipeline() {
+  if (state.voice.videoStream) {
+    for (const track of state.voice.videoStream.getTracks()) track.stop();
+  }
+  state.voice.videoStream = null;
+  state.voice.sharingVideo = false;
+  document.getElementById(`video-${state.me.id}`)?.parentElement?.remove();
+  updateVideoGridVisibility();
+}
+
+function updateVideoGridVisibility() {
+  const hasVideos = el.videoGrid.children.length > 0;
+  if (hasVideos) {
+    el.videoGrid.classList.remove("hidden");
+  } else {
+    el.videoGrid.classList.add("hidden");
+  }
+}
+
+function renderVideo(peerId, displayName, stream) {
+  let videoEl = document.getElementById(`video-${peerId}`);
+  if (!videoEl) {
+    const container = document.createElement("div");
+    container.className = "video-item";
+    container.innerHTML = `
+      <video id="video-${peerId}" autoplay playsinline ${peerId === state.me.id ? "muted" : ""}></video>
+      <div class="video-label">${escapeHtml(displayName)}</div>
+    `;
+    el.videoGrid.appendChild(container);
+    videoEl = container.querySelector("video");
+  }
+  videoEl.srcObject = stream;
+  updateVideoGridVisibility();
+}
+
 async function buildAudioPipeline(rawStream) {
   const audioContext = new AudioContext();
   const source = audioContext.createMediaStreamSource(rawStream);
@@ -601,6 +640,12 @@ function ensurePeerConnection(peerId) {
     }
   }
 
+  if (state.voice.videoStream) {
+    for (const track of state.voice.videoStream.getTracks()) {
+      pc.addTrack(track, state.voice.videoStream);
+    }
+  }
+
   pc.onicecandidate = (event) => {
     if (!event.candidate || !state.voice.ws) return;
     state.voice.ws.send(JSON.stringify({
@@ -612,6 +657,7 @@ function ensurePeerConnection(peerId) {
   };
 
   pc.ontrack = (event) => {
+    if (event.track.kind === "audio") {
       let audio = document.getElementById(`audio-${peerId}`);
       if (!audio) {
         audio = document.createElement("audio");
@@ -621,6 +667,20 @@ function ensurePeerConnection(peerId) {
         document.body.appendChild(audio);
       }
       audio.srcObject = event.streams[0];
+    } else if (event.track.kind === "video") {
+      const peer = state.members.find(m => m.id === peerId) || { display_name: "Unknown" };
+      renderVideo(peerId, peer.display_name, event.streams[0]);
+    }
+  };
+
+  pc.onnegotiationneeded = async () => {
+    try {
+      if (shouldInitiateOffer(peerId)) {
+        await sendOffer(peerId);
+      }
+    } catch (err) {
+      console.error("negotiation failed", err);
+    }
   };
 
   state.voice.peerConnections.set(peerId, pc);
@@ -707,6 +767,11 @@ async function joinVoice() {
       document.getElementById(`audio-${msg.user_id}`)?.remove();
     } else if (msg.type === "signal") {
       await handleSignal(msg.from_user_id, msg.kind, msg.data);
+    } else if (msg.type === "video_status_changed") {
+      if (!msg.is_sharing_video) {
+        document.getElementById(`video-${msg.user_id}`)?.parentElement?.remove();
+        updateVideoGridVisibility();
+      }
     }
     refreshVoicePresence().catch(() => { });
   };
@@ -738,6 +803,45 @@ function toggleMute() {
   lucide.createIcons();
 }
 
+async function toggleVideo() {
+  if (state.voice.sharingVideo) {
+    stopAndClearVideoPipeline();
+    if (state.voice.ws) {
+      state.voice.ws.send(JSON.stringify({ type: "set_video_status", is_sharing_video: false }));
+    }
+    for (const pc of state.voice.peerConnections.values()) {
+      const senders = pc.getSenders();
+      const videoSender = senders.find(s => s.track && s.track.kind === "video");
+      if (videoSender) pc.removeTrack(videoSender);
+    }
+  } else {
+    try {
+      const stream = await navigator.mediaDevices.getUserMedia({ video: true });
+      state.voice.videoStream = stream;
+      state.voice.sharingVideo = true;
+      renderVideo(state.me.id, state.me.display_name, stream);
+
+      if (state.voice.ws) {
+        state.voice.ws.send(JSON.stringify({ type: "set_video_status", is_sharing_video: true }));
+      }
+
+      for (const pc of state.voice.peerConnections.values()) {
+        for (const track of stream.getTracks()) {
+          pc.addTrack(track, stream);
+        }
+      }
+    } catch (err) {
+      console.error("camera denied", err);
+      alert("Could not access camera.");
+      return;
+    }
+  }
+
+  el.voiceVideoBtn.innerHTML = state.voice.sharingVideo ? '<i data-lucide="video"></i>' : '<i data-lucide="video-off"></i>';
+  el.voiceVideoBtn.style.color = state.voice.sharingVideo ? 'var(--green)' : 'var(--text-muted)';
+  lucide.createIcons();
+}
+
 // --- Mobile Logic ---
 
 function toggleMobileMenu() {
@@ -911,6 +1015,7 @@ async function init() {
     } catch (err) { alert(err.message); }
   };
 
+  el.voiceVideoBtn.onclick = toggleVideo;
   el.voiceMuteBtn.onclick = toggleMute;
   el.voiceLeaveBtn.onclick = leaveVoice;
 

static/index.html

@@ -85,6 +85,7 @@
               <span id="vc-channel-name" class="vc-name">General</span>
             </div>
             <div class="vc-actions">
+              <button id="voice-video-btn" title="Turn on Camera"><i data-lucide="video-off"></i></button>
               <button id="voice-mute-btn" title="Mute"><i data-lucide="mic"></i></button>
               <button id="voice-leave-btn" title="Disconnect"><i data-lucide="phone-off"></i></button>
             </div>
@@ -121,6 +122,7 @@
         </button>
       </header>
 
+      <div id="video-grid" class="video-grid hidden"></div>
       <div id="message-list" class="message-list"></div>
 
       <div class="chat-input-wrapper">

static/styles.css

@@ -524,6 +524,47 @@ select {
   color: var(--text-normal);
 }
 
+/* Video Grid */
+.video-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
+  gap: 16px;
+  padding: 16px;
+  background: var(--bg-tertiary);
+  max-height: 60vh;
+  overflow-y: auto;
+  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
+}
+
+.video-grid.hidden {
+  display: none;
+}
+
+.video-item {
+  position: relative;
+  aspect-ratio: 16 / 9;
+  background: #000;
+  border-radius: 8px;
+  overflow: hidden;
+}
+
+.video-item video {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.video-item .video-label {
+  position: absolute;
+  bottom: 8px;
+  left: 8px;
+  background: rgba(0, 0, 0, 0.5);
+  color: #fff;
+  padding: 2px 8px;
+  border-radius: 4px;
+  font-size: 12px;
+}
+
 /* Chat Pane */
 .chat-pane {
   display: flex;