extensions/renderer/logging_native_handler.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 EXTENSIONS_RENDERER_LOGGING_NATIVE_HANDLER_H_
   6 #define EXTENSIONS_RENDERER_LOGGING_NATIVE_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "extensions/renderer/object_backed_native_handler.h"
  11
  12 namespace extensions {
  13 class ScriptContext;
  14
  15 // Exposes logging.h macros to JavaScript bindings.
  16 class LoggingNativeHandler : public ObjectBackedNativeHandler {
  17  public:
  18   explicit LoggingNativeHandler(ScriptContext* context);
  19   virtual ~LoggingNativeHandler();
  20
  21   // Equivalent to CHECK(predicate) << message.
  22   //
  23   // void(predicate, message?)
  24   void Check(const v8::FunctionCallbackInfo<v8::Value>& args);
  25
  26   // Equivalent to DCHECK(predicate) << message.
  27   //
  28   // void(predicate, message?)
  29   void Dcheck(const v8::FunctionCallbackInfo<v8::Value>& args);
  30
  31   // Equivalent to DCHECK_IS_ON.
  32   //
  33   // bool()
  34   void DcheckIsOn(const v8::FunctionCallbackInfo<v8::Value>& args);
  35
  36   // Equivalent to LOG(INFO) << message.
  37   //
  38   // void(message)
  39   void Log(const v8::FunctionCallbackInfo<v8::Value>& args);
  40
  41   // Equivalent to LOG(WARNING) << message.
  42   //
  43   // void(message)
  44   void Warning(const v8::FunctionCallbackInfo<v8::Value>& args);
  45
  46   void ParseArgs(const v8::FunctionCallbackInfo<v8::Value>& args,
  47                  bool* check_value,
  48                  std::string* error_message);
  49
  50   std::string ToStringOrDefault(const v8::Handle<v8::String>& v8_string,
  51                                 const std::string& dflt);
  52 };
  53
  54 }  // namespace extensions
  55
  56 #endif  // EXTENSIONS_RENDERER_LOGGING_NATIVE_HANDLER_H_