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      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 EXTENSIONS_RENDERER_API_ACTIVITY_LOGGER_H_
      6 #define EXTENSIONS_RENDERER_API_ACTIVITY_LOGGER_H_
      7 
      8 #include <string>
      9 
     10 #include "extensions/common/features/feature.h"
     11 #include "extensions/renderer/object_backed_native_handler.h"
     12 #include "v8/include/v8.h"
     13 
     14 namespace extensions {
     15 
     16 // Used to log extension API calls and events that are implemented with custom
     17 // bindings.The actions are sent via IPC to extensions::ActivityLog for
     18 // recording and display.
     19 class APIActivityLogger : public ObjectBackedNativeHandler {
     20  public:
     21   explicit APIActivityLogger(ScriptContext* context);
     22 
     23  private:
     24   // Used to distinguish API calls & events from each other in LogInternal.
     25   enum CallType { APICALL, EVENT };
     26 
     27   // This is ultimately invoked in bindings.js with JavaScript arguments.
     28   //    arg0 - extension ID as a string
     29   //    arg1 - API call name as a string
     30   //    arg2 - arguments to the API call
     31   //    arg3 - any extra logging info as a string (optional)
     32   static void LogAPICall(const v8::FunctionCallbackInfo<v8::Value>& args);
     33 
     34   // This is ultimately invoked in bindings.js with JavaScript arguments.
     35   //    arg0 - extension ID as a string
     36   //    arg1 - Event name as a string
     37   //    arg2 - Event arguments
     38   //    arg3 - any extra logging info as a string (optional)
     39   static void LogEvent(const v8::FunctionCallbackInfo<v8::Value>& args);
     40 
     41   // LogAPICall and LogEvent are really the same underneath except for
     42   // how they are ultimately dispatched to the log.
     43   static void LogInternal(const CallType call_type,
     44                           const v8::FunctionCallbackInfo<v8::Value>& args);
     45 
     46   DISALLOW_COPY_AND_ASSIGN(APIActivityLogger);
     47 };
     48 
     49 }  // namespace extensions
     50 
     51 #endif  // EXTENSIONS_RENDERER_API_ACTIVITY_LOGGER_H_
     52