recommended_apps.h revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
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#ifndef CHROME_BROWSER_UI_APP_LIST_RECOMMENDED_APPS_H_
6#define CHROME_BROWSER_UI_APP_LIST_RECOMMENDED_APPS_H_
7
8#include <vector>
9
10#include "base/basictypes.h"
11#include "base/memory/ref_counted.h"
12#include "base/observer_list.h"
13#include "base/prefs/pref_change_registrar.h"
14#include "chrome/browser/extensions/install_observer.h"
15
16class Profile;
17
18namespace app_list {
19
20class RecommendedAppsObserver;
21
22// A class that maintains a list of recommended apps by watching changes
23// to app state.
24class RecommendedApps : public extensions::InstallObserver {
25 public:
26  typedef std::vector<scoped_refptr<const extensions::Extension> > Apps;
27
28  explicit RecommendedApps(Profile* profile);
29  virtual ~RecommendedApps();
30
31  void AddObserver(RecommendedAppsObserver* observer);
32  void RemoveObserver(RecommendedAppsObserver* observer);
33
34  const Apps& apps() const { return apps_; }
35
36 private:
37  void Update();
38
39  // extensions::InstallObserver overrides:
40  virtual void OnExtensionInstalled(
41      const extensions::Extension* extension) OVERRIDE;
42  virtual void OnExtensionLoaded(
43      const extensions::Extension* extension) OVERRIDE;
44  virtual void OnExtensionUnloaded(
45      const extensions::Extension* extension) OVERRIDE;
46  virtual void OnExtensionUninstalled(
47      const extensions::Extension* extension) OVERRIDE;
48
49  Profile* profile_;
50  PrefChangeRegistrar pref_change_registrar_;
51
52  Apps apps_;
53  ObserverList<RecommendedAppsObserver, true> observers_;
54
55  DISALLOW_COPY_AND_ASSIGN(RecommendedApps);
56};
57
58}  // namespace app_list
59
60#endif  // CHROME_BROWSER_UI_APP_LIST_RECOMMENDED_APPS_H_
61