text: /*
   * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #pragma once
  
  #include <AK/ByteBuffer.h>
  #include <AK/RefCounted.h>
  #include <AK/URL.h>
  #include <AK/Weakable.h>
  #include <LibWeb/Bindings/Wrappable.h>
  #include <LibWeb/DOM/EventTarget.h>
  #include <LibWeb/XHR/XMLHttpRequestEventTarget.h>
  
  namespace Web::XHR {
  
  class XMLHttpRequest final
      : public RefCounted<XMLHttpRequest>
      , public Weakable<XMLHttpRequest>
      , public XMLHttpRequestEventTarget {
  public:
      enum class ReadyState : u16 {
          Unsent = 0,
          Opened = 1,
          HeadersReceived = 2,
          Loading = 3,
          Done = 4,
      };
  
      using WrapperType = Bindings::XMLHttpRequestWrapper;
  
      static NonnullRefPtr<XMLHttpRequest> create(DOM::Window& window) { return adopt(*new XMLHttpRequest(window)); }
  
      virtual ~XMLHttpRequest() override;
  
      using RefCounted::ref;
      using RefCounted::unref;
  
      ReadyState ready_state() const { return m_ready_state; };
      String response_text() const;
      void open(const String& method, const String& url);
      void send();
  
      void set_request_header(const String& header, const String& value);
  
  private:
      virtual void ref_event_target() override { ref(); }
      virtual void unref_event_target() override { unref(); }
      virtual bool dispatch_event(NonnullRefPtr<DOM::Event>) override;
      virtual JS::Object* create_wrapper(JS::GlobalObject&) override;
  
      void set_ready_state(ReadyState);
      void fire_progress_event(const String&, u64, u64);
  
      explicit XMLHttpRequest(DOM::Window&);
  
      NonnullRefPtr<DOM::Window> m_window;
  
      ReadyState m_ready_state { ReadyState::Unsent };
      bool m_send { false };
  
      String m_method;
      URL m_url;
  
      HashMap<String, String, CaseInsensitiveStringTraits> m_request_headers;
  
      bool m_synchronous { false };
      bool m_upload_complete { false };
      bool m_upload_listener { false };
      bool m_timed_out { false };
  
      ByteBuffer m_response_object;
  };
  
  }
  