// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that can
// be found in the LICENSE file.

#ifndef CEF_LIBCEF_RENDERER_FRAME_IMPL_H_
#define CEF_LIBCEF_RENDERER_FRAME_IMPL_H_
#pragma once

#include <string>
#include "include/cef_frame.h"
#include "include/cef_v8.h"

namespace base {
class ListValue;
}

namespace blink {
class WebLocalFrame;
class WebURLLoaderFactory;
}  // namespace blink

namespace IPC {
class Message;
}

class GURL;

class CefBrowserImpl;
class CefResponseManager;
struct CefMsg_LoadRequest_Params;
struct Cef_Request_Params;
struct Cef_Response_Params;

// Implementation of CefFrame. CefFrameImpl objects are owned by the
// CefBrowerImpl and will be detached when the browser is notified that the
// associated renderer WebFrame will close.
class CefFrameImpl : public CefFrame {
 public:
  CefFrameImpl(CefBrowserImpl* browser,
               blink::WebLocalFrame* frame,
               int64_t frame_id);
  ~CefFrameImpl() override;

  // CefFrame implementation.
  bool IsValid() override;
  void Undo() override;
  void Redo() override;
  void Cut() override;
  void Copy() override;
  void Paste() override;
  void Delete() override;
  void SelectAll() override;
  void ViewSource() override;
  void GetSource(CefRefPtr<CefStringVisitor> visitor) override;
  void GetText(CefRefPtr<CefStringVisitor> visitor) override;
  void LoadRequest(CefRefPtr<CefRequest> request) override;
  void LoadURL(const CefString& url) override;
  void LoadString(const CefString& string, const CefString& url) override;
  void ExecuteJavaScript(const CefString& jsCode,
                         const CefString& scriptUrl,
                         int startLine) override;
  bool IsMain() override;
  bool IsFocused() override;
  CefString GetName() override;
  int64 GetIdentifier() override;
  CefRefPtr<CefFrame> GetParent() override;
  CefString GetURL() override;
  CefRefPtr<CefBrowser> GetBrowser() override;
  CefRefPtr<CefV8Context> GetV8Context() override;
  void VisitDOM(CefRefPtr<CefDOMVisitor> visitor) override;
  CefRefPtr<CefURLRequest> CreateURLRequest(
      CefRefPtr<CefRequest> request,
      CefRefPtr<CefURLRequestClient> client) override;
  void SendProcessMessage(CefProcessId target_process,
                          CefRefPtr<CefProcessMessage> message) override;

  // Used by CefRenderURLRequest.
  blink::WebURLLoaderFactory* GetURLLoaderFactory();

  // Forwarded from CefRenderFrameObserver.
  void OnAttached();
  bool OnMessageReceived(const IPC::Message& message);
  void OnDidFinishLoad();
  void OnFocused();
  void OnDraggableRegionsChanged();
  void OnDetached();

  blink::WebLocalFrame* web_frame() const { return frame_; }

 private:
  void ExecuteCommand(const std::string& command);

  // Avoids unnecessary string type conversions.
  void SendProcessMessage(CefProcessId target_process,
                          const std::string& name,
                          base::ListValue* arguments,
                          bool user_initiated);

  // Send a message to the RenderFrame associated with this frame.
  void Send(IPC::Message* message);

  // OnMessageReceived message handlers.
  void OnRequest(const Cef_Request_Params& params);
  void OnResponse(const Cef_Response_Params& params);
  void OnResponseAck(int request_id);
  void OnDidStopLoading();
  void OnLoadRequest(const CefMsg_LoadRequest_Params& params);

  CefBrowserImpl* browser_;
  blink::WebLocalFrame* frame_;
  const int64 frame_id_;

  std::unique_ptr<blink::WebURLLoaderFactory> url_loader_factory_;

  // Manages response registrations.
  std::unique_ptr<CefResponseManager> response_manager_;

  IMPLEMENT_REFCOUNTING(CefFrameImpl);
  DISALLOW_COPY_AND_ASSIGN(CefFrameImpl);
};

#endif  // CEF_LIBCEF_RENDERER_FRAME_IMPL_H_