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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 #include "athena/activity/public/activity_manager.h"
      6 
      7 #include <vector>
      8 
      9 #include "base/macros.h"
     10 #include "base/observer_list.h"
     11 #include "ui/views/widget/widget_observer.h"
     12 
     13 namespace athena {
     14 
     15 class ActivityManagerObserver;
     16 
     17 class ActivityManagerImpl : public ActivityManager,
     18                             public views::WidgetObserver {
     19  public:
     20   ActivityManagerImpl();
     21   virtual ~ActivityManagerImpl();
     22 
     23   int num_activities() const { return activities_.size(); }
     24 
     25   // ActivityManager:
     26   virtual void AddActivity(Activity* activity) OVERRIDE;
     27   virtual void RemoveActivity(Activity* activity) OVERRIDE;
     28   virtual void UpdateActivity(Activity* activity) OVERRIDE;
     29   virtual Activity* GetActivityForWindow(aura::Window* window) OVERRIDE;
     30   virtual void AddObserver(ActivityManagerObserver* observer) OVERRIDE;
     31   virtual void RemoveObserver(ActivityManagerObserver* observer) OVERRIDE;
     32 
     33   // views::WidgetObserver
     34   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
     35 
     36  private:
     37   std::vector<Activity*> activities_;
     38 
     39   ObserverList<ActivityManagerObserver> observers_;
     40 
     41   DISALLOW_COPY_AND_ASSIGN(ActivityManagerImpl);
     42 };
     43 
     44 }  // namespace athena
     45