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 17class Profile; 18 19namespace extensions { 20class ExtensionRegistry; 21} 22 23namespace app_list { 24 25class RecommendedAppsObserver; 26 27// A class that maintains a list of recommended apps by watching changes 28// to app state. 29class 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