shortcut_manager.cc revision 6d86b77056ed63eb6871182f42a9fd5f07550f90 
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#include "chrome/browser/apps/shortcut_manager.h"
6
7#include "base/bind.h"
8#include "base/command_line.h"
9#include "base/compiler_specific.h"
10#include "base/prefs/pref_service.h"
11#include "base/strings/string16.h"
12#include "base/strings/utf_string_conversions.h"
13#include "chrome/browser/browser_process.h"
14#include "chrome/browser/extensions/extension_service.h"
15#include "chrome/browser/extensions/extension_ui_util.h"
16#include "chrome/browser/profiles/profile.h"
17#include "chrome/browser/profiles/profile_info_cache.h"
18#include "chrome/browser/profiles/profile_manager.h"
19#include "chrome/browser/shell_integration.h"
20#include "chrome/browser/web_applications/web_app.h"
21#include "chrome/common/chrome_switches.h"
22#include "chrome/common/pref_names.h"
23#include "components/pref_registry/pref_registry_syncable.h"
24#include "content/public/browser/browser_thread.h"
25#include "extensions/browser/extension_registry.h"
26#include "extensions/browser/extension_system.h"
27#include "extensions/browser/extension_util.h"
28#include "extensions/common/extension_set.h"
29#include "extensions/common/one_shot_event.h"
30
31using extensions::Extension;
32
33namespace {
34
35// This version number is stored in local prefs to check whether app shortcuts
36// need to be recreated. This might happen when we change various aspects of app
37// shortcuts like command-line flags or associated icons, binaries, etc.
38#if defined(OS_MACOSX)
39const int kCurrentAppShortcutsVersion = 1;
40#else
41const int kCurrentAppShortcutsVersion = 0;
42#endif
43
44// Delay in seconds before running UpdateShortcutsForAllApps.
45const int kUpdateShortcutsForAllAppsDelay = 10;
46
47void CreateShortcutsForApp(Profile* profile, const Extension* app) {
48  web_app::ShortcutLocations creation_locations;
49
50  if (extensions::util::IsEphemeralApp(app->id(), profile)) {
51    // Ephemeral apps should not have visible shortcuts, but may still require
52    // platform-specific handling.
53    creation_locations.applications_menu_location =
54        web_app::APP_MENU_LOCATION_HIDDEN;
55  } else {
56    // Creates a shortcut for an app in the Chrome Apps subdir of the
57    // applications menu, if there is not already one present.
58    creation_locations.applications_menu_location =
59        web_app::APP_MENU_LOCATION_SUBDIR_CHROMEAPPS;
60  }
61
62  web_app::CreateShortcuts(
63      web_app::SHORTCUT_CREATION_AUTOMATED, creation_locations, profile, app);
64}
65
66void SetCurrentAppShortcutsVersion(PrefService* prefs) {
67  prefs->SetInteger(prefs::kAppShortcutsVersion, kCurrentAppShortcutsVersion);
68}
69
70}  // namespace
71
72// static
73void AppShortcutManager::RegisterProfilePrefs(
74    user_prefs::PrefRegistrySyncable* registry) {
75  // Indicates whether app shortcuts have been created.
76  registry->RegisterIntegerPref(
77      prefs::kAppShortcutsVersion, 0,
78      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
79}
80
81AppShortcutManager::AppShortcutManager(Profile* profile)
82    : profile_(profile),
83      is_profile_info_cache_observer_(false),
84      prefs_(profile->GetPrefs()),
85      extension_registry_observer_(this),
86      weak_ptr_factory_(this) {
87  // Use of g_browser_process requires that we are either on the UI thread, or
88  // there are no threads initialized (such as in unit tests).
89  DCHECK(!content::BrowserThread::IsThreadInitialized(
90             content::BrowserThread::UI) ||
91         content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
92
93  extension_registry_observer_.Add(
94      extensions::ExtensionRegistry::Get(profile_));
95  // Wait for extensions to be ready before running
96  // UpdateShortcutsForAllAppsIfNeeded.
97  extensions::ExtensionSystem::Get(profile)->ready().Post(
98      FROM_HERE,
99      base::Bind(&AppShortcutManager::UpdateShortcutsForAllAppsIfNeeded,
100                 weak_ptr_factory_.GetWeakPtr()));
101
102  ProfileManager* profile_manager = g_browser_process->profile_manager();
103  // profile_manager might be NULL in testing environments.
104  if (profile_manager) {
105    profile_manager->GetProfileInfoCache().AddObserver(this);
106    is_profile_info_cache_observer_ = true;
107  }
108}
109
110AppShortcutManager::~AppShortcutManager() {
111  if (g_browser_process && is_profile_info_cache_observer_) {
112    ProfileManager* profile_manager = g_browser_process->profile_manager();
113    // profile_manager might be NULL in testing environments or during shutdown.
114    if (profile_manager)
115      profile_manager->GetProfileInfoCache().RemoveObserver(this);
116  }
117}
118
119void AppShortcutManager::OnExtensionWillBeInstalled(
120    content::BrowserContext* browser_context,
121    const Extension* extension,
122    bool is_update,
123    bool from_ephemeral,
124    const std::string& old_name) {
125  if (!extension->is_app())
126    return;
127
128  // If the app is being updated, update any existing shortcuts but do not
129  // create new ones. If it is being installed, automatically create a
130  // shortcut in the applications menu (e.g., Start Menu).
131  if (is_update && !from_ephemeral) {
132    web_app::UpdateAllShortcuts(
133        base::UTF8ToUTF16(old_name), profile_, extension);
134  } else {
135    CreateShortcutsForApp(profile_, extension);
136  }
137}
138
139void AppShortcutManager::OnExtensionUninstalled(
140    content::BrowserContext* browser_context,
141    const Extension* extension) {
142  web_app::DeleteAllShortcuts(profile_, extension);
143}
144
145void AppShortcutManager::OnProfileWillBeRemoved(
146    const base::FilePath& profile_path) {
147  if (profile_path != profile_->GetPath())
148    return;
149  content::BrowserThread::PostTask(
150      content::BrowserThread::FILE, FROM_HERE,
151      base::Bind(&web_app::internals::DeleteAllShortcutsForProfile,
152                 profile_path));
153}
154
155void AppShortcutManager::UpdateShortcutsForAllAppsIfNeeded() {
156  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType))
157    return;
158
159  int last_version = prefs_->GetInteger(prefs::kAppShortcutsVersion);
160  if (last_version >= kCurrentAppShortcutsVersion)
161    return;
162
163  content::BrowserThread::PostDelayedTask(
164      content::BrowserThread::UI,
165      FROM_HERE,
166      base::Bind(&web_app::UpdateShortcutsForAllApps,
167                 profile_,
168                 base::Bind(&SetCurrentAppShortcutsVersion, prefs_)),
169      base::TimeDelta::FromSeconds(kUpdateShortcutsForAllAppsDelay));
170}
171