chrome/browser/chromeos/extensions/file_manager/private_api_base.h

   1 // Copyright 2013 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 // This file contains base classes for fileManagerPrivate API.
   6
   7 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_PRIVATE_API_BASE_H_
   8 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_PRIVATE_API_BASE_H_
   9
  10 #include "base/time/time.h"
  11 #include "chrome/browser/extensions/chrome_extension_function.h"
  12
  13 namespace extensions {
  14
  15 // This class adds a logging feature to AsyncExtensionFunction. Logging is
  16 // done when sending the response to JavaScript, using drive::util::Log().
  17 // Async API functions of fileManagerPrivate should inherit this class.
  18 //
  19 // By default, logging is turned off, hence sub classes should call
  20 // set_log_on_completion(true) to enable it, if they want. However, even if
  21 // the logging is turned off, a warning is emitted when a function call is
  22 // very slow. See the implementation of SendResponse() for details.
  23 class LoggedAsyncExtensionFunction : public ChromeAsyncExtensionFunction {
  24  public:
  25   LoggedAsyncExtensionFunction();
  26
  27  protected:
  28   ~LoggedAsyncExtensionFunction() override;
  29
  30   // AsyncExtensionFunction overrides.
  31   void SendResponse(bool success) override;
  32
  33   // Sets the logging on completion flag. By default, logging is turned off.
  34   void set_log_on_completion(bool log_on_completion) {
  35     log_on_completion_ = log_on_completion;
  36   }
  37
  38  private:
  39   base::Time start_time_;
  40   bool log_on_completion_;
  41 };
  42
  43 }  // namespace extensions
  44
  45 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_PRIVATE_API_BASE_H_