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 "base/scoped_observer.h" 15 #include "extensions/browser/extension_registry_observer.h" 16 17 class Profile; 18 19 namespace extensions { 20 class ExtensionRegistry; 21 } 22 23 namespace app_list { 24 25 class RecommendedAppsObserver; 26 27 // A class that maintains a list of recommended apps by watching changes 28 // to app state. 29 class RecommendedApps : public extensions::ExtensionRegistryObserver { 30 public: 31 typedef std::vector<scoped_refptr<const extensions::Extension> > Apps; 32 33 explicit RecommendedApps(Profile* profile); 34 virtual ~RecommendedApps(); 35 36 void AddObserver(RecommendedAppsObserver* observer); 37 void RemoveObserver(RecommendedAppsObserver* observer); 38 39 const Apps& apps() const { return apps_; } 40 41 private: 42 void Update(); 43 44 // extensions::ExtensionRegistryObserver overrides: 45 virtual void OnExtensionWillBeInstalled( 46 content::BrowserContext* browser_context, 47 const extensions::Extension* extension, 48 bool is_update, 49 bool from_ephemeral, 50 const std::string& old_name) OVERRIDE; 51 virtual void OnExtensionLoaded( 52 content::BrowserContext* browser_context, 53 const extensions::Extension* extension) OVERRIDE; 54 virtual void OnExtensionUnloaded( 55 content::BrowserContext* browser_context, 56 const extensions::Extension* extension, 57 extensions::UnloadedExtensionInfo::Reason reason) OVERRIDE; 58 virtual void OnExtensionUninstalled( 59 content::BrowserContext* browser_context, 60 const extensions::Extension* extension, 61 extensions::UninstallReason reason) OVERRIDE; 62 63 Profile* profile_; 64 PrefChangeRegistrar pref_change_registrar_; 65 66 Apps apps_; 67 ObserverList<RecommendedAppsObserver, true> observers_; 68 69 ScopedObserver<extensions::ExtensionRegistry, 70 extensions::ExtensionRegistryObserver> 71 extension_registry_observer_; 72 73 DISALLOW_COPY_AND_ASSIGN(RecommendedApps); 74 }; 75 76 } // namespace app_list 77 78 #endif // CHROME_BROWSER_UI_APP_LIST_RECOMMENDED_APPS_H_ 79