DevTools: Protocol handler generator for content

content/browser/devtools/protocol/devtools_protocol_client.h

+// Copyright 2014 The Chromium 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 CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_PROTOCOL_CLIENT_H_
+#define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_PROTOCOL_CLIENT_H_
+
+#include "content/browser/devtools/devtools_protocol.h"
+
+namespace content {
+
+class DevToolsProtocolClient {
+ public:
+  typedef base::Callback<void(const std::string& event,
+                              base::DictionaryValue* params)> EventCallback;
+
+  typedef base::Callback<void(scoped_refptr<DevToolsProtocol::Response>)>
+      ResponseCallback;
+
+  enum ResponseStatus {
+    RESPONSE_STATUS_FALLTHROUGH,
+    RESPONSE_STATUS_OK,
+    RESPONSE_STATUS_INVALID_PARAMS,
+    RESPONSE_STATUS_INTERNAL_ERROR,
+    RESPONSE_STATUS_SERVER_ERROR,
+  };
+
+  struct Response {
+   public:
+    static Response FallThrough();
+    static Response OK();
+    static Response InvalidParams(const std::string& message);
+    static Response InternalError(const std::string& message);
+    static Response ServerError(const std::string& message);
+
+    ResponseStatus status() const;
+    const std::string& message() const;
+
+   private:
+    Response();
+
+    ResponseStatus status_;
+    std::string message_;
+  };
+
+  void SendInvalidParamsResponse(
+      scoped_refptr<DevToolsProtocol::Command> command,
+      const std::string& message);
+  void SendInternalErrorResponse(
+      scoped_refptr<DevToolsProtocol::Command> command,
+      const std::string& message);
+  void SendServerErrorResponse(
+      scoped_refptr<DevToolsProtocol::Command> command,
+      const std::string& message);
+
+ protected:
+  DevToolsProtocolClient(const EventCallback& event_callback,
+                         const ResponseCallback& response_callback);
+
+  virtual ~DevToolsProtocolClient();
+
+  void SendNotification(const std::string& method,
+                        base::DictionaryValue* params);
+
+  void SendAsyncResponse(scoped_refptr<DevToolsProtocol::Response> response);
+
+ private:
+  EventCallback event_callback_;
+  ResponseCallback response_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(DevToolsProtocolClient);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_PROTOCOL_CLIENT_H_