allow media stream

crates/tauri-runtime-cef/src/cef_impl.rs

@@ -512,6 +512,50 @@ wrap_keyboard_handler! {
   }
 }
 
+wrap_permission_handler! {
+  struct BrowserPermissionHandler {}
+
+  impl PermissionHandler {
+    fn on_request_media_access_permission(
+      &self,
+      _browser: Option<&mut Browser>,
+      _frame: Option<&mut Frame>,
+      _requesting_origin: Option<&CefString>,
+      requested_permissions: u32,
+      callback: Option<&mut MediaAccessCallback>,
+    ) -> ::std::os::raw::c_int {
+      let Some(callback) = callback else {
+        return 0;
+      };
+      // Allow microphone and camera when requested
+      let allowed = requested_permissions & (sys::cef_media_access_permission_types_t::CEF_MEDIA_PERMISSION_DEVICE_AUDIO_CAPTURE as u32 | sys::cef_media_access_permission_types_t::CEF_MEDIA_PERMISSION_DEVICE_VIDEO_CAPTURE as u32);
+      if allowed != 0 {
+        callback.cont(requested_permissions);
+        return 1;
+      }
+      0
+    }
+
+    fn on_show_permission_prompt(
+      &self,
+      _browser: Option<&mut Browser>,
+      _prompt_id: u64,
+      _requesting_origin: Option<&CefString>,
+      requested_permissions: u32,
+      callback: Option<&mut PermissionPromptCallback>,
+    ) -> ::std::os::raw::c_int {
+      let Some(callback) = callback else {
+        return 0;
+      };
+      // Allow permission prompt (e.g. microphone/camera)
+      callback.cont(PermissionRequestResult::from(
+        cef::sys::cef_permission_request_result_t::CEF_PERMISSION_RESULT_ACCEPT,
+      ));
+      1
+    }
+  }
+}
+
 wrap_download_handler! {
   struct BrowserDownloadHandler {
     download_handler: Arc<tauri_runtime::webview::DownloadHandler>,
@@ -769,6 +813,10 @@ wrap_client! {
     fn keyboard_handler(&self) -> Option<KeyboardHandler> {
       Some(BrowserKeyboardHandler::new(self.devtools_enabled))
     }
+
+    fn permission_handler(&self) -> Option<PermissionHandler> {
+      Some(BrowserPermissionHandler::new())
+    }
   }
 }
 

crates/tauri-runtime-cef/src/lib.rs

@@ -1927,7 +1927,7 @@ impl<T: UserEvent> CefRuntime<T> {
       next_window_event_id: Default::default(),
     };
 
-    let command_line_args: Vec<(String, Option<String>)> = runtime_args
+    let mut command_line_args: Vec<(String, Option<String>)> = runtime_args
       .platform_specific_attributes
       .into_iter()
       .filter_map(|arg| match arg {
@@ -1935,6 +1935,13 @@ impl<T: UserEvent> CefRuntime<T> {
       })
       .flatten()
       .collect();
+    // Enable media stream so that getUserMedia (mic/camera) can trigger permission requests
+    if !command_line_args
+      .iter()
+      .any(|(k, _)| k == "enable-media-stream")
+    {
+      command_line_args.push(("enable-media-stream".to_string(), None));
+    }
 
     let mut app = cef_impl::TauriApp::new(
       cef_context.clone(),