4 files changed, 15 insertions, 0 deletions
diff --git a/Userland/Libraries/LibProtocol/WebSocket.cpp b/Userland/Libraries/LibProtocol/WebSocket.cpp
index fd85b64add..7d5b3cbe65 100644
--- a/Userland/Libraries/LibProtocol/WebSocket.cpp
+++ b/Userland/Libraries/LibProtocol/WebSocket.cpp
@@ -20,6 +20,11 @@ WebSocket::ReadyState WebSocket::ready_state()
     return (WebSocket::ReadyState)m_client->ready_state({}, *this);
 }
 
+DeprecatedString WebSocket::subprotocol_in_use()
+{
+    return m_client->subprotocol_in_use({}, *this);
+}
+
 void WebSocket::send(ByteBuffer binary_or_text_message, bool is_text)
 {
     m_client->send({}, *this, move(binary_or_text_message), is_text);
diff --git a/Userland/Libraries/LibProtocol/WebSocket.h b/Userland/Libraries/LibProtocol/WebSocket.h
index d323a9edcf..eb7d859cba 100644
--- a/Userland/Libraries/LibProtocol/WebSocket.h
+++ b/Userland/Libraries/LibProtocol/WebSocket.h
@@ -53,6 +53,8 @@ public:
 
     ReadyState ready_state();
 
+    DeprecatedString subprotocol_in_use();
+
     void send(ByteBuffer binary_or_text_message, bool is_text);
     void send(StringView text_message);
     void close(u16 code = 1005, DeprecatedString reason = {});
diff --git a/Userland/Libraries/LibProtocol/WebSocketClient.cpp b/Userland/Libraries/LibProtocol/WebSocketClient.cpp
index b96d04951b..03e65268a3 100644
--- a/Userland/Libraries/LibProtocol/WebSocketClient.cpp
+++ b/Userland/Libraries/LibProtocol/WebSocketClient.cpp
@@ -34,6 +34,13 @@ u32 WebSocketClient::ready_state(Badge<WebSocket>, WebSocket& connection)
     return IPCProxy::ready_state(connection.id());
 }
 
+DeprecatedString WebSocketClient::subprotocol_in_use(Badge<WebSocket>, WebSocket& connection)
+{
+    if (!m_connections.contains(connection.id()))
+        return DeprecatedString::empty();
+    return IPCProxy::subprotocol_in_use(connection.id());
+}
+
 void WebSocketClient::send(Badge<WebSocket>, WebSocket& connection, ByteBuffer data, bool is_text)
 {
     if (!m_connections.contains(connection.id()))
diff --git a/Userland/Libraries/LibProtocol/WebSocketClient.h b/Userland/Libraries/LibProtocol/WebSocketClient.h
index 60281c93c0..85d026ea6e 100644
--- a/Userland/Libraries/LibProtocol/WebSocketClient.h
+++ b/Userland/Libraries/LibProtocol/WebSocketClient.h
@@ -24,6 +24,7 @@ public:
     RefPtr<WebSocket> connect(const URL&, DeprecatedString const& origin = {}, Vector<DeprecatedString> const& protocols = {}, Vector<DeprecatedString> const& extensions = {}, HashMap<DeprecatedString, DeprecatedString> const& request_headers = {});
 
     u32 ready_state(Badge<WebSocket>, WebSocket&);
+    DeprecatedString subprotocol_in_use(Badge<WebSocket>, WebSocket&);
     void send(Badge<WebSocket>, WebSocket&, ByteBuffer, bool is_text);
     void close(Badge<WebSocket>, WebSocket&, u16 code, DeprecatedString reason);
     bool set_certificate(Badge<WebSocket>, WebSocket&, DeprecatedString, DeprecatedString);