chrome/browser/metrics/windowed_incognito_observer.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 CHROME_BROWSER_METRICS_WINDOWED_INCOGNITO_OBSERVER_H_
   6 #define CHROME_BROWSER_METRICS_WINDOWED_INCOGNITO_OBSERVER_H_
   7
   8 #include "base/macros.h"
   9 #include "chrome/browser/ui/browser_list_observer.h"
  10
  11 class Browser;
  12
  13 namespace metrics {
  14
  15 // This class watches for any incognito window being opened from the time it is
  16 // instantiated to the time it is destroyed.
  17 class WindowedIncognitoObserver : public chrome::BrowserListObserver {
  18  public:
  19   WindowedIncognitoObserver();
  20   ~WindowedIncognitoObserver() override;
  21
  22   // This method can be checked to see whether any incognito window has been
  23   // opened since the time this object was created.
  24   bool incognito_launched() const {
  25     return incognito_launched_;
  26   }
  27
  28  protected:
  29   // For testing.
  30   void set_incognito_launched(bool value) {
  31     incognito_launched_ = value;
  32   }
  33
  34  private:
  35   // chrome::BrowserListObserver implementation.
  36   void OnBrowserAdded(Browser* browser) override;
  37
  38   // Gets set if an incognito window was opened during the lifetime of the
  39   // object. Closing the window does not clear the flag.
  40   bool incognito_launched_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(WindowedIncognitoObserver);
  43 };
  44
  45 }  // namespace metrics
  46
  47 #endif  // CHROME_BROWSER_METRICS_WINDOWED_INCOGNITO_OBSERVER_H_