src/chrome/browser/ui/app_list/recommended_apps.h

   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   ~RecommendedApps() override;
  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   void OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
  46                                   const extensions::Extension* extension,
  47                                   bool is_update,
  48                                   bool from_ephemeral,
  49                                   const std::string& old_name) override;
  50   void OnExtensionLoaded(content::BrowserContext* browser_context,
  51                          const extensions::Extension* extension) override;
  52   void OnExtensionUnloaded(
  53       content::BrowserContext* browser_context,
  54       const extensions::Extension* extension,
  55       extensions::UnloadedExtensionInfo::Reason reason) override;
  56   void OnExtensionUninstalled(content::BrowserContext* browser_context,
  57                               const extensions::Extension* extension,
  58                               extensions::UninstallReason reason) override;
  59
  60   Profile* profile_;
  61   PrefChangeRegistrar pref_change_registrar_;
  62
  63   Apps apps_;
  64   ObserverList<RecommendedAppsObserver, true> observers_;
  65
  66   ScopedObserver<extensions::ExtensionRegistry,
  67                  extensions::ExtensionRegistryObserver>
  68       extension_registry_observer_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(RecommendedApps);
  71 };
  72
  73 }  // namespace app_list
  74
  75 #endif  // CHROME_BROWSER_UI_APP_LIST_RECOMMENDED_APPS_H_