--- a/libervia/web/pages/calls/_browser/__init__.py	Thu Aug 17 16:23:01 2023 +0200
+++ b/libervia/web/pages/calls/_browser/__init__.py	Fri Aug 18 17:43:01 2023 +0200
@@ -34,11 +34,13 @@
 
 class CallUI:
     def __init__(self):
-        self.webrtc = WebRTC()
-        self.webrtc.screen_sharing_cb = self.on_sharing_screen
-        self.webrtc.on_connection_established_cb = self.on_connection_established
-        self.webrtc.on_reconnect_cb = self.on_reconnect
-        self.webrtc.on_connection_lost_cb = self.on_connection_lost
+        self.webrtc = WebRTC(
+            screen_sharing_cb=self.on_sharing_screen,
+            on_connection_established_cb=self.on_connection_established,
+            on_reconnect_cb=self.on_reconnect,
+            on_connection_lost_cb=self.on_connection_lost,
+            on_video_devices=self.on_video_devices,
+        )
         self.mode = "search"
         self._status = None
         self._callee = None
@@ -71,13 +73,14 @@
         )
         document["mute_audio_btn"].bind("click", self.toggle_audio_mute)
         document["mute_video_btn"].bind("click", self.toggle_video_mute)
-        self.share_desktop_btn_elt = document["share_desktop_btn"]
+        self.share_desktop_col_elt = document["share_desktop_column"]
         if hasattr(window.navigator.mediaDevices, "getDisplayMedia"):
-            self.share_desktop_btn_elt.classList.remove("is-hidden-touch")
+            self.share_desktop_col_elt.classList.remove("is-hidden-touch")
             # screen sharing is supported
-            self.share_desktop_btn_elt.bind("click", self.toggle_screen_sharing)
+            document["share_desktop_btn"].bind("click", self.toggle_screen_sharing)
         else:
-            self.share_desktop_btn_elt.classList.add("is-hidden")
+            self.share_desktop_col_elt.classList.add("is-hidden")
+        document["switch_camera_btn"].bind("click", self.on_switch_camera)
 
         # search
         self.search_elt = document["search"]
@@ -309,6 +312,13 @@
     def on_connection_lost(self):
         self.status = "connection-lost"
 
+    def on_video_devices(self, has_multiple_cameras: bool) -> None:
+        switch_camera_col_elt = document["switch_camera_column"]
+        if has_multiple_cameras:
+            switch_camera_col_elt.classList.remove("is-hidden", "is-hidden-desktop")
+        else:
+            switch_camera_col_elt.classList.add("is-hidden")
+
     async def make_call(self, audio: bool = True, video: bool = True) -> None:
         """Start a WebRTC call
 
@@ -444,7 +454,7 @@
         if not self.search_elt.value:
             return
         # clear the search field
-        self.search_elt.value = ''
+        self.search_elt.value = ""
         # and dispatch the input event so items are updated
         self.search_elt.dispatchEvent(window.Event.new("input"))
 
@@ -510,7 +520,7 @@
 
     def on_sharing_screen(self, sharing: bool) -> None:
         """Called when screen sharing state changes"""
-        share_desktop_btn_elt = self.share_desktop_btn_elt
+        share_desktop_btn_elt = document["share_desktop_btn"]
         if sharing:
             share_desktop_btn_elt.classList.add("is-danger")
             share_desktop_btn_elt.classList.remove(INACTIVE_CLASS, SCREEN_OFF_CLASS)
@@ -518,6 +528,9 @@
             share_desktop_btn_elt.classList.remove("is-danger")
             share_desktop_btn_elt.classList.add(INACTIVE_CLASS, SCREEN_OFF_CLASS)
 
+    def on_switch_camera(self, __) -> None:
+        aio.run(self.webrtc.switch_camera())
+
     def _on_entity_click(self, item: dict) -> None:
         aio.run(self.on_entity_click(item))