Track when profiles are last used.

chrome/browser/profiles/profile_info_cache.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/profiles/profile_info_cache.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/format_macros.h"
 #include "base/i18n/case_conversion.h"
@@ skipping 35 matching lines @@
 const char kAvatarIconKey[] = "avatar_icon";
 const char kAuthCredentialsKey[] = "local_auth_credentials";
 const char kUseGAIAPictureKey[] = "use_gaia_picture";
 const char kBackgroundAppsKey[] = "background_apps";
 const char kHasMigratedToGAIAInfoKey[] = "has_migrated_to_gaia_info";
 const char kGAIAPictureFileNameKey[] = "gaia_picture_file_name";
 const char kIsManagedKey[] = "is_managed";
 const char kSigninRequiredKey[] = "signin_required";
 const char kManagedUserId[] = "managed_user_id";
 const char kProfileIsEphemeral[] = "is_ephemeral";
+const char kActiveTimeKey[] = "active_time";
 
 const char kDefaultUrlPrefix[] = "chrome://theme/IDR_PROFILE_AVATAR_";
 const char kGAIAPictureFileName[] = "Google Profile Picture.png";
 
 const int kDefaultAvatarIconResources[] = {
   IDR_PROFILE_AVATAR_0,
   IDR_PROFILE_AVATAR_1,
   IDR_PROFILE_AVATAR_2,
   IDR_PROFILE_AVATAR_3,
   IDR_PROFILE_AVATAR_4,
@@ skipping 236 matching lines @@
   base::string16 shortcut_name;
   GetInfoForProfileAtIndex(index)->GetString(
       kShortcutNameKey, &shortcut_name);
   return shortcut_name;
 }
 
 base::FilePath ProfileInfoCache::GetPathOfProfileAtIndex(size_t index) const {
   return user_data_dir_.AppendASCII(sorted_keys_[index]);
 }
 
+base::Time ProfileInfoCache::GetProfileActive(size_t index) const {
+  double dt;
+  if (GetInfoForProfileAtIndex(index)->GetDouble(kActiveTimeKey, &dt)) {
+    return base::Time::FromDoubleT(dt);
+  } else {
+    return base::Time();
+  }
+}
+
 base::string16 ProfileInfoCache::GetUserNameOfProfileAtIndex(
     size_t index) const {
   base::string16 user_name;
   GetInfoForProfileAtIndex(index)->GetString(kUserNameKey, &user_name);
   return user_name;
 }
 
 const gfx::Image& ProfileInfoCache::GetAvatarIconOfProfileAtIndex(
     size_t index) const {
   if (IsUsingGAIAPictureOfProfileAtIndex(index)) {
@@ skipping 145 matching lines @@
     const {
   std::string icon_url;
   GetInfoForProfileAtIndex(index)->GetString(kAvatarIconKey, &icon_url);
   size_t icon_index = 0;
   if (!IsDefaultAvatarIconUrl(icon_url, &icon_index))
     DLOG(WARNING) << "Unknown avatar icon: " << icon_url;
 
   return icon_index;
 }
 
+void ProfileInfoCache::SetProfileActive(size_t index) {
+  scoped_ptr<base::DictionaryValue> info(
+      GetInfoForProfileAtIndex(index)->DeepCopy());
+  info->SetDouble(kActiveTimeKey, base::Time::Now().ToDoubleT());
+  // This takes ownership of |info|.
+  SetInfoForProfileAtIndex(index, info.release());
+}
+
 void ProfileInfoCache::SetNameOfProfileAtIndex(size_t index,
                                                const base::string16& name) {
   scoped_ptr<base::DictionaryValue> info(
       GetInfoForProfileAtIndex(index)->DeepCopy());
   base::string16 current_name;
   info->GetString(kNameKey, &current_name);
   if (name == current_name)
     return;
 
   base::string16 old_display_name = GetNameOfProfileAtIndex(index);
@@ skipping 450 matching lines @@
     info->GetString(kNameKey, &name);
     names.push_back(name);
   }
   return names;
 }
 
 // static
 void ProfileInfoCache::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterDictionaryPref(prefs::kProfileInfoCache);
 }