content/public/browser/devtools_frontend_host.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_
   6 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_
   7
   8 #include <string>
   9
  10 #include "content/common/content_export.h"
  11
  12 namespace content {
  13
  14 class RenderFrameHost;
  15
  16 // This class dispatches messages between DevTools frontend and Delegate
  17 // which is implemented by the embedder.
  18 // This allows us to avoid exposing DevTools frontend messages through
  19 // the content public API.
  20 class DevToolsFrontendHost {
  21  public:
  22   // Delegate actually handles messages from frontend.
  23   class Delegate {
  24    public:
  25     virtual ~Delegate() {}
  26
  27     // Message is coming from frontend to the embedder.
  28     virtual void HandleMessageFromDevToolsFrontend(
  29         const std::string& message) = 0;
  30
  31     // Message is coming from frontend to the backend.
  32     // TODO(dgozman): remove this by making one of the possible messages
  33     // passed via the method above.
  34     virtual void HandleMessageFromDevToolsFrontendToBackend(
  35         const std::string& message) = 0;
  36   };
  37
  38   // Creates a new DevToolsFrontendHost for RenderFrameHost where DevTools
  39   // frontend is loaded.
  40   CONTENT_EXPORT static DevToolsFrontendHost* Create(
  41       RenderFrameHost* frontend_main_frame,
  42       Delegate* delegate);
  43
  44   CONTENT_EXPORT virtual ~DevToolsFrontendHost() {}
  45 };
  46
  47 }  // namespace content
  48
  49 #endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_FRONTEND_HOST_H_