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.
5 #include "chrome/browser/ui/app_list/recommended_apps.h"
10 #include "base/bind.h"
11 #include "chrome/browser/extensions/extension_ui_util.h"
12 #include "chrome/browser/profiles/profile.h"
13 #include "chrome/browser/ui/app_list/recommended_apps_observer.h"
14 #include "chrome/common/pref_names.h"
15 #include "extensions/browser/extension_prefs.h"
16 #include "extensions/browser/extension_registry.h"
17 #include "extensions/browser/pref_names.h"
18 #include "extensions/common/extension.h"
19 #include "extensions/common/extension_set.h"
26 AppSortInfo() : app(NULL) {}
27 AppSortInfo(const extensions::Extension* app,
28 const base::Time& last_launch_time)
29 : app(app), last_launch_time(last_launch_time) {}
31 const extensions::Extension* app;
32 base::Time last_launch_time;
35 bool AppLaunchedMoreRecent(const AppSortInfo& app1, const AppSortInfo& app2) {
36 return app1.last_launch_time > app2.last_launch_time;
41 RecommendedApps::RecommendedApps(Profile* profile)
42 : profile_(profile), extension_registry_observer_(this) {
43 extensions::ExtensionPrefs* prefs = extensions::ExtensionPrefs::Get(profile_);
44 pref_change_registrar_.Init(prefs->pref_service());
45 pref_change_registrar_.Add(extensions::pref_names::kExtensions,
46 base::Bind(&RecommendedApps::Update,
47 base::Unretained(this)));
48 extension_registry_observer_.Add(extensions::ExtensionRegistry::Get(profile));
52 RecommendedApps::~RecommendedApps() {
55 void RecommendedApps::AddObserver(RecommendedAppsObserver* observer) {
56 observers_.AddObserver(observer);
59 void RecommendedApps::RemoveObserver(RecommendedAppsObserver* observer) {
60 observers_.RemoveObserver(observer);
63 void RecommendedApps::Update() {
64 extensions::ExtensionPrefs* prefs = extensions::ExtensionPrefs::Get(profile_);
66 std::vector<AppSortInfo> sorted_apps;
67 const extensions::ExtensionSet& extensions =
68 extensions::ExtensionRegistry::Get(profile_)->enabled_extensions();
69 for (extensions::ExtensionSet::const_iterator app = extensions.begin();
70 app != extensions.end();
72 if (!extensions::ui_util::ShouldDisplayInAppLauncher(*app, profile_))
75 sorted_apps.push_back(
76 AppSortInfo(app->get(), prefs->GetLastLaunchTime((*app)->id())));
79 std::sort(sorted_apps.begin(), sorted_apps.end(), &AppLaunchedMoreRecent);
81 const size_t kMaxRecommendedApps = 4;
82 sorted_apps.resize(std::min(kMaxRecommendedApps, sorted_apps.size()));
85 for (size_t i = 0; i < sorted_apps.size(); ++i)
86 new_recommends.push_back(sorted_apps[i].app);
88 const bool changed = apps_.size() != new_recommends.size() ||
89 !std::equal(apps_.begin(), apps_.end(), new_recommends.begin());
91 apps_.swap(new_recommends);
93 RecommendedAppsObserver, observers_, OnRecommendedAppsChanged());
97 void RecommendedApps::OnExtensionWillBeInstalled(
98 content::BrowserContext* browser_context,
99 const extensions::Extension* extension,
102 const std::string& old_name) {
106 void RecommendedApps::OnExtensionLoaded(
107 content::BrowserContext* browser_context,
108 const extensions::Extension* extension) {
112 void RecommendedApps::OnExtensionUnloaded(
113 content::BrowserContext* browser_context,
114 const extensions::Extension* extension,
115 extensions::UnloadedExtensionInfo::Reason reason) {
119 void RecommendedApps::OnExtensionUninstalled(
120 content::BrowserContext* browser_context,
121 const extensions::Extension* extension,
122 extensions::UninstallReason reason) {
126 } // namespace app_list