Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibRequests/WebSocket.h

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2021, Dex♪ <dexes.ttp@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Badge.h>
+#include <AK/ByteBuffer.h>
+#include <AK/ByteString.h>
+#include <AK/Function.h>
+#include <AK/RefCounted.h>
+#include <AK/WeakPtr.h>
+#include <LibCore/Notifier.h>
+#include <LibIPC/Forward.h>
+
+namespace Requests {
+
+class RequestClient;
+
+class WebSocket : public RefCounted<WebSocket> {
+public:
+    struct CertificateAndKey {
+        ByteString certificate;
+        ByteString key;
+    };
+
+    struct Message {
+        ByteBuffer data;
+        bool is_text { false };
+    };
+
+    enum class Error {
+        CouldNotEstablishConnection,
+        ConnectionUpgradeFailed,
+        ServerClosedSocket,
+    };
+
+    enum class ReadyState {
+        Connecting = 0,
+        Open = 1,
+        Closing = 2,
+        Closed = 3,
+    };
+
+    static NonnullRefPtr<WebSocket> create_from_id(Badge<RequestClient>, RequestClient& client, i64 websocket_id)
+    {
+        return adopt_ref(*new WebSocket(client, websocket_id));
+    }
+
+    i64 id() const { return m_websocket_id; }
+
+    ReadyState ready_state();
+    void set_ready_state(ReadyState);
+
+    ByteString subprotocol_in_use();
+    void set_subprotocol_in_use(ByteString);
+
+    void send(ByteBuffer binary_or_text_message, bool is_text);
+    void send(StringView text_message);
+    void close(u16 code = 1005, ByteString reason = {});
+
+    Function<void()> on_open;
+    Function<void(Message)> on_message;
+    Function<void(Error)> on_error;
+    Function<void(u16 code, ByteString reason, bool was_clean)> on_close;
+    Function<CertificateAndKey()> on_certificate_requested;
+
+    void did_open(Badge<RequestClient>);
+    void did_receive(Badge<RequestClient>, ByteBuffer, bool);
+    void did_error(Badge<RequestClient>, i32);
+    void did_close(Badge<RequestClient>, u16, ByteString, bool);
+    void did_request_certificates(Badge<RequestClient>);
+
+private:
+    explicit WebSocket(RequestClient&, i64 websocket_id);
+    WeakPtr<RequestClient> m_client;
+    ReadyState m_ready_state { ReadyState::Connecting };
+    ByteString m_subprotocol;
+    i64 m_websocket_id { -1 };
+};
+
+}