components/html_viewer/devtools_agent_impl.h

   1 // Copyright 2015 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 COMPONENTS_HTML_VIEWER_DEVTOOLS_AGENT_IMPL_H_
   6 #define COMPONENTS_HTML_VIEWER_DEVTOOLS_AGENT_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/macros.h"
  12 #include "components/devtools_service/public/interfaces/devtools_service.mojom.h"
  13 #include "third_party/WebKit/public/web/WebDevToolsAgentClient.h"
  14 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h"
  15
  16 namespace blink {
  17 class WebLocalFrame;
  18 }
  19
  20 namespace html_viewer {
  21
  22 class DevToolsAgentImpl : public devtools_service::DevToolsAgent,
  23                           public blink::WebDevToolsAgentClient {
  24  public:
  25   // |frame| must outlive this object.
  26   // This agent should restore its internal state using |state| if it is not
  27   // null.
  28   DevToolsAgentImpl(blink::WebLocalFrame* frame,
  29                     const std::string& id,
  30                     const std::string* state);
  31   ~DevToolsAgentImpl() override;
  32
  33   void BindToRequest(mojo::InterfaceRequest<DevToolsAgent> request);
  34
  35  private:
  36   // devtools_service::DevToolsAgent implementation.
  37   void SetClient(devtools_service::DevToolsAgentClientPtr client) override;
  38   void DispatchProtocolMessage(const mojo::String& message) override;
  39
  40   // blink::WebDevToolsAgentClient implementation.
  41   void sendProtocolMessage(int call_id,
  42                            const blink::WebString& response,
  43                            const blink::WebString& state);
  44
  45   void OnConnectionError();
  46
  47   blink::WebLocalFrame* const frame_;
  48   const std::string id_;
  49
  50   mojo::Binding<DevToolsAgent> binding_;
  51   devtools_service::DevToolsAgentClientPtr client_;
  52
  53   // If we restore the agent's internal state using serialized state data from a
  54   // previous agent, the agent may generate messages before |client_| is set.
  55   // In that case, we need to cache messages for the client.
  56   bool cache_until_client_ready_;
  57
  58   struct CachedClientMessage {
  59     int call_id;
  60     mojo::String response;
  61     mojo::String state;
  62   };
  63   std::vector<CachedClientMessage> cached_client_messages_;
  64
  65   DISALLOW_COPY_AND_ASSIGN(DevToolsAgentImpl);
  66 };
  67
  68 }  // namespace html_viewer
  69
  70 #endif  // COMPONENTS_HTML_VIEWER_DEVTOOLS_AGENT_IMPL_H_