chrome/browser/profiles/profile_info_cache.cc

   1 // Copyright (c) 2012 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/profiles/profile_info_cache.h"
   6
   7 #include "base/bind.h"
   8 #include "base/file_util.h"
   9 #include "base/format_macros.h"
  10 #include "base/i18n/case_conversion.h"
  11 #include "base/logging.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/rand_util.h"
  14 #include "base/stl_util.h"
  15 #include "base/string_number_conversions.h"
  16 #include "base/string_piece.h"
  17 #include "base/stringprintf.h"
  18 #include "base/utf_string_conversions.h"
  19 #include "base/values.h"
  20 #include "chrome/browser/browser_process.h"
  21 #include "chrome/browser/prefs/pref_service.h"
  22 #include "chrome/browser/prefs/scoped_user_pref_update.h"
  23 #include "chrome/common/chrome_notification_types.h"
  24 #include "chrome/common/pref_names.h"
  25 #include "content/public/browser/browser_thread.h"
  26 #include "content/public/browser/notification_service.h"
  27 #include "grit/generated_resources.h"
  28 #include "grit/theme_resources.h"
  29 #include "third_party/skia/include/core/SkBitmap.h"
  30 #include "ui/base/l10n/l10n_util.h"
  31 #include "ui/base/resource/resource_bundle.h"
  32 #include "ui/gfx/image/image.h"
  33 #include "ui/gfx/image/image_util.h"
  34
  35 using content::BrowserThread;
  36
  37 namespace {
  38
  39 const char kNameKey[] = "name";
  40 const char kShortcutNameKey[] = "shortcut_name";
  41 const char kGAIANameKey[] = "gaia_name";
  42 const char kUseGAIANameKey[] = "use_gaia_name";
  43 const char kUserNameKey[] = "user_name";
  44 const char kAvatarIconKey[] = "avatar_icon";
  45 const char kUseGAIAPictureKey[] = "use_gaia_picture";
  46 const char kBackgroundAppsKey[] = "background_apps";
  47 const char kHasMigratedToGAIAInfoKey[] = "has_migrated_to_gaia_info";
  48 const char kGAIAPictureFileNameKey[] = "gaia_picture_file_name";
  49
  50 const char kDefaultUrlPrefix[] = "chrome://theme/IDR_PROFILE_AVATAR_";
  51 const char kGAIAPictureFileName[] = "Google Profile Picture.png";
  52
  53 const int kDefaultAvatarIconResources[] = {
  54   IDR_PROFILE_AVATAR_0,
  55   IDR_PROFILE_AVATAR_1,
  56   IDR_PROFILE_AVATAR_2,
  57   IDR_PROFILE_AVATAR_3,
  58   IDR_PROFILE_AVATAR_4,
  59   IDR_PROFILE_AVATAR_5,
  60   IDR_PROFILE_AVATAR_6,
  61   IDR_PROFILE_AVATAR_7,
  62   IDR_PROFILE_AVATAR_8,
  63   IDR_PROFILE_AVATAR_9,
  64   IDR_PROFILE_AVATAR_10,
  65   IDR_PROFILE_AVATAR_11,
  66   IDR_PROFILE_AVATAR_12,
  67   IDR_PROFILE_AVATAR_13,
  68   IDR_PROFILE_AVATAR_14,
  69   IDR_PROFILE_AVATAR_15,
  70   IDR_PROFILE_AVATAR_16,
  71   IDR_PROFILE_AVATAR_17,
  72   IDR_PROFILE_AVATAR_18,
  73   IDR_PROFILE_AVATAR_19,
  74   IDR_PROFILE_AVATAR_20,
  75   IDR_PROFILE_AVATAR_21,
  76   IDR_PROFILE_AVATAR_22,
  77   IDR_PROFILE_AVATAR_23,
  78   IDR_PROFILE_AVATAR_24,
  79   IDR_PROFILE_AVATAR_25,
  80 };
  81
  82 const size_t kDefaultAvatarIconsCount = arraysize(kDefaultAvatarIconResources);
  83
  84 // The first 8 icons are generic.
  85 const size_t kGenericIconCount = 8;
  86
  87 // First eight are generic icons, which use IDS_NUMBERED_PROFILE_NAME.
  88 const int kDefaultNames[] = {
  89   IDS_DEFAULT_AVATAR_NAME_8,
  90   IDS_DEFAULT_AVATAR_NAME_9,
  91   IDS_DEFAULT_AVATAR_NAME_10,
  92   IDS_DEFAULT_AVATAR_NAME_11,
  93   IDS_DEFAULT_AVATAR_NAME_12,
  94   IDS_DEFAULT_AVATAR_NAME_13,
  95   IDS_DEFAULT_AVATAR_NAME_14,
  96   IDS_DEFAULT_AVATAR_NAME_15,
  97   IDS_DEFAULT_AVATAR_NAME_16,
  98   IDS_DEFAULT_AVATAR_NAME_17,
  99   IDS_DEFAULT_AVATAR_NAME_18,
 100   IDS_DEFAULT_AVATAR_NAME_19,
 101   IDS_DEFAULT_AVATAR_NAME_20,
 102   IDS_DEFAULT_AVATAR_NAME_21,
 103   IDS_DEFAULT_AVATAR_NAME_22,
 104   IDS_DEFAULT_AVATAR_NAME_23,
 105   IDS_DEFAULT_AVATAR_NAME_24,
 106   IDS_DEFAULT_AVATAR_NAME_25
 107 };
 108
 109 typedef std::vector<unsigned char> ImageData;
 110
 111 // Writes |data| to disk and takes ownership of the pointer. On completion
 112 // |success| is set to true on success and false on failure.
 113 void SaveBitmap(ImageData* data,
 114                 const FilePath& image_path,
 115                 bool* success) {
 116   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 117   scoped_ptr<ImageData> data_owner(data);
 118   *success = false;
 119
 120   // Make sure the destination directory exists.
 121   FilePath dir = image_path.DirName();
 122   if (!file_util::DirectoryExists(dir) && !file_util::CreateDirectory(dir)) {
 123     LOG(ERROR) << "Failed to create parent directory.";
 124     return;
 125   }
 126
 127   if (file_util::WriteFile(image_path,
 128                            reinterpret_cast<char*>(&(*data)[0]),
 129                            data->size()) == -1) {
 130     LOG(ERROR) << "Failed to save image to file.";
 131     return;
 132   }
 133
 134   *success = true;
 135 }
 136
 137 // Reads a PNG from disk and decodes it. If the bitmap was successfully read
 138 // from disk the then |out_image| will contain the bitmap image, otherwise it
 139 // will be NULL.
 140 void ReadBitmap(const FilePath& image_path,
 141                 gfx::Image** out_image) {
 142   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 143   *out_image = NULL;
 144
 145   std::string image_data;
 146   if (!file_util::ReadFileToString(image_path, &image_data)) {
 147     LOG(ERROR) << "Failed to read PNG file from disk.";
 148     return;
 149   }
 150
 151   const unsigned char* data =
 152       reinterpret_cast<const unsigned char*>(image_data.data());
 153   gfx::Image* image = gfx::ImageFromPNGEncodedData(data, image_data.length());
 154   if (image == NULL) {
 155     LOG(ERROR) << "Failed to decode PNG file.";
 156     return;
 157   }
 158
 159   *out_image = image;
 160 }
 161
 162 void DeleteBitmap(const FilePath& image_path) {
 163   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 164   file_util::Delete(image_path, false);
 165 }
 166
 167 }  // namespace
 168
 169 ProfileInfoCache::ProfileInfoCache(PrefService* prefs,
 170                                    const FilePath& user_data_dir)
 171     : prefs_(prefs),
 172       user_data_dir_(user_data_dir) {
 173   // Populate the cache
 174   const DictionaryValue* cache =
 175       prefs_->GetDictionary(prefs::kProfileInfoCache);
 176   for (DictionaryValue::key_iterator it = cache->begin_keys();
 177        it != cache->end_keys(); ++it) {
 178     std::string key = *it;
 179     const DictionaryValue* info = NULL;
 180     cache->GetDictionary(key, &info);
 181     string16 name;
 182     info->GetString(kNameKey, &name);
 183     sorted_keys_.insert(FindPositionForProfile(key, name), key);
 184   }
 185 }
 186
 187 ProfileInfoCache::~ProfileInfoCache() {
 188   STLDeleteContainerPairSecondPointers(
 189       gaia_pictures_.begin(), gaia_pictures_.end());
 190 }
 191
 192 void ProfileInfoCache::AddProfileToCache(const FilePath& profile_path,
 193                                          const string16& name,
 194                                          const string16& username,
 195                                          size_t icon_index) {
 196   std::string key = CacheKeyFromProfilePath(profile_path);
 197   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
 198   DictionaryValue* cache = update.Get();
 199
 200   scoped_ptr<DictionaryValue> info(new DictionaryValue);
 201   info->SetString(kNameKey, name);
 202   info->SetString(kUserNameKey, username);
 203   info->SetString(kAvatarIconKey, GetDefaultAvatarIconUrl(icon_index));
 204   // Default value for whether background apps are running is false.
 205   info->SetBoolean(kBackgroundAppsKey, false);
 206   cache->Set(key, info.release());
 207
 208   sorted_keys_.insert(FindPositionForProfile(key, name), key);
 209
 210   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 211                     observer_list_,
 212                     OnProfileAdded(profile_path));
 213
 214   content::NotificationService::current()->Notify(
 215       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 216       content::NotificationService::AllSources(),
 217       content::NotificationService::NoDetails());
 218 }
 219
 220 void ProfileInfoCache::AddObserver(ProfileInfoCacheObserver* obs) {
 221   observer_list_.AddObserver(obs);
 222 }
 223
 224 void ProfileInfoCache::RemoveObserver(ProfileInfoCacheObserver* obs) {
 225   observer_list_.RemoveObserver(obs);
 226 }
 227
 228 void ProfileInfoCache::DeleteProfileFromCache(const FilePath& profile_path) {
 229   size_t profile_index = GetIndexOfProfileWithPath(profile_path);
 230   if (profile_index == std::string::npos) {
 231     NOTREACHED();
 232     return;
 233   }
 234   string16 name = GetNameOfProfileAtIndex(profile_index);
 235
 236   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 237                     observer_list_,
 238                     OnProfileWillBeRemoved(profile_path));
 239
 240   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
 241   DictionaryValue* cache = update.Get();
 242   std::string key = CacheKeyFromProfilePath(profile_path);
 243   cache->Remove(key, NULL);
 244   sorted_keys_.erase(std::find(sorted_keys_.begin(), sorted_keys_.end(), key));
 245
 246   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 247                     observer_list_,
 248                     OnProfileWasRemoved(profile_path, name));
 249
 250   content::NotificationService::current()->Notify(
 251       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 252       content::NotificationService::AllSources(),
 253       content::NotificationService::NoDetails());
 254 }
 255
 256 size_t ProfileInfoCache::GetNumberOfProfiles() const {
 257   return sorted_keys_.size();
 258 }
 259
 260 size_t ProfileInfoCache::GetIndexOfProfileWithPath(
 261     const FilePath& profile_path) const {
 262   if (profile_path.DirName() != user_data_dir_)
 263     return std::string::npos;
 264   std::string search_key = CacheKeyFromProfilePath(profile_path);
 265   for (size_t i = 0; i < sorted_keys_.size(); ++i) {
 266     if (sorted_keys_[i] == search_key)
 267       return i;
 268   }
 269   return std::string::npos;
 270 }
 271
 272 string16 ProfileInfoCache::GetNameOfProfileAtIndex(size_t index) const {
 273   string16 name;
 274   if (IsUsingGAIANameOfProfileAtIndex(index))
 275     name = GetGAIANameOfProfileAtIndex(index);
 276   if (name.empty())
 277     GetInfoForProfileAtIndex(index)->GetString(kNameKey, &name);
 278   return name;
 279 }
 280
 281 string16 ProfileInfoCache::GetShortcutNameOfProfileAtIndex(size_t index)
 282     const {
 283   string16 shortcut_name;
 284   GetInfoForProfileAtIndex(index)->GetString(
 285       kShortcutNameKey, &shortcut_name);
 286   return shortcut_name;
 287 }
 288
 289 FilePath ProfileInfoCache::GetPathOfProfileAtIndex(size_t index) const {
 290   return user_data_dir_.AppendASCII(sorted_keys_[index]);
 291 }
 292
 293 string16 ProfileInfoCache::GetUserNameOfProfileAtIndex(size_t index) const {
 294   string16 user_name;
 295   GetInfoForProfileAtIndex(index)->GetString(kUserNameKey, &user_name);
 296   return user_name;
 297 }
 298
 299 const gfx::Image& ProfileInfoCache::GetAvatarIconOfProfileAtIndex(
 300     size_t index) const {
 301   if (IsUsingGAIAPictureOfProfileAtIndex(index)) {
 302     const gfx::Image* image = GetGAIAPictureOfProfileAtIndex(index);
 303     if (image)
 304       return *image;
 305   }
 306
 307   int resource_id = GetDefaultAvatarIconResourceIDAtIndex(
 308       GetAvatarIconIndexOfProfileAtIndex(index));
 309   return ResourceBundle::GetSharedInstance().GetNativeImageNamed(resource_id);
 310 }
 311
 312 bool ProfileInfoCache::GetBackgroundStatusOfProfileAtIndex(
 313     size_t index) const {
 314   bool background_app_status;
 315   if (!GetInfoForProfileAtIndex(index)->GetBoolean(kBackgroundAppsKey,
 316                                                    &background_app_status)) {
 317     return false;
 318   }
 319   return background_app_status;
 320 }
 321
 322 string16 ProfileInfoCache::GetGAIANameOfProfileAtIndex(size_t index) const {
 323   string16 name;
 324   GetInfoForProfileAtIndex(index)->GetString(kGAIANameKey, &name);
 325   return name;
 326 }
 327
 328 bool ProfileInfoCache::IsUsingGAIANameOfProfileAtIndex(size_t index) const {
 329   bool value = false;
 330   GetInfoForProfileAtIndex(index)->GetBoolean(kUseGAIANameKey, &value);
 331   return value;
 332 }
 333
 334 const gfx::Image* ProfileInfoCache::GetGAIAPictureOfProfileAtIndex(
 335     size_t index) const {
 336   FilePath path = GetPathOfProfileAtIndex(index);
 337   std::string key = CacheKeyFromProfilePath(path);
 338
 339   // If the picture is already loaded then use it.
 340   if (gaia_pictures_.count(key)) {
 341     if (gaia_pictures_[key]->IsEmpty())
 342       return NULL;
 343     return gaia_pictures_[key];
 344   }
 345
 346   std::string file_name;
 347   GetInfoForProfileAtIndex(index)->GetString(
 348       kGAIAPictureFileNameKey, &file_name);
 349
 350   // If the picture is not on disk or it is already being loaded then return
 351   // NULL.
 352   if (file_name.empty() || gaia_pictures_loading_[key])
 353     return NULL;
 354
 355   gaia_pictures_loading_[key] = true;
 356   FilePath image_path = path.AppendASCII(file_name);
 357   gfx::Image** image = new gfx::Image*;
 358   BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE,
 359       base::Bind(&ReadBitmap, image_path, image),
 360       base::Bind(&ProfileInfoCache::OnGAIAPictureLoaded,
 361           const_cast<ProfileInfoCache*>(this)->AsWeakPtr(), path, image));
 362
 363   return NULL;
 364 }
 365
 366 void ProfileInfoCache::OnGAIAPictureLoaded(const FilePath& path,
 367                                            gfx::Image** image) const {
 368   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 369
 370   std::string key = CacheKeyFromProfilePath(path);
 371   gaia_pictures_loading_[key] = false;
 372
 373   if (*image) {
 374     delete gaia_pictures_[key];
 375     gaia_pictures_[key] = *image;
 376   } else {
 377     // Place an empty image in the cache to avoid reloading it again.
 378     gaia_pictures_[key] = new gfx::Image();
 379   }
 380   delete image;
 381
 382   content::NotificationService::current()->Notify(
 383       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 384       content::NotificationService::AllSources(),
 385       content::NotificationService::NoDetails());
 386 }
 387
 388 void ProfileInfoCache::OnGAIAPictureSaved(const FilePath& path,
 389                                           bool* success) const  {
 390   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 391
 392   if (*success) {
 393     content::NotificationService::current()->Notify(
 394         chrome::NOTIFICATION_PROFILE_CACHE_PICTURE_SAVED,
 395         content::NotificationService::AllSources(),
 396         content::NotificationService::NoDetails());
 397   }
 398   delete success;
 399 }
 400
 401 bool ProfileInfoCache::IsUsingGAIAPictureOfProfileAtIndex(
 402     size_t index) const {
 403   bool value = false;
 404   GetInfoForProfileAtIndex(index)->GetBoolean(kUseGAIAPictureKey, &value);
 405   return value;
 406 }
 407
 408 size_t ProfileInfoCache::GetAvatarIconIndexOfProfileAtIndex(size_t index)
 409     const {
 410   std::string icon_url;
 411   GetInfoForProfileAtIndex(index)->GetString(kAvatarIconKey, &icon_url);
 412   size_t icon_index = 0;
 413   if (IsDefaultAvatarIconUrl(icon_url, &icon_index))
 414     return icon_index;
 415
 416   DLOG(WARNING) << "Unknown avatar icon: " << icon_url;
 417   return GetDefaultAvatarIconResourceIDAtIndex(0);
 418 }
 419
 420 void ProfileInfoCache::SetNameOfProfileAtIndex(size_t index,
 421                                                const string16& name) {
 422   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 423   string16 current_name;
 424   info->GetString(kNameKey, &current_name);
 425   if (name == current_name)
 426     return;
 427
 428   string16 old_display_name = GetNameOfProfileAtIndex(index);
 429   info->SetString(kNameKey, name);
 430   // This takes ownership of |info|.
 431   SetInfoForProfileAtIndex(index, info.release());
 432   string16 new_display_name = GetNameOfProfileAtIndex(index);
 433   FilePath profile_path = GetPathOfProfileAtIndex(index);
 434   UpdateSortForProfileIndex(index);
 435
 436   if (old_display_name != new_display_name) {
 437     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 438                       observer_list_,
 439                       OnProfileNameChanged(profile_path, old_display_name));
 440   }
 441 }
 442
 443 void ProfileInfoCache::SetShortcutNameOfProfileAtIndex(
 444     size_t index,
 445     const string16& shortcut_name) {
 446   if (shortcut_name == GetShortcutNameOfProfileAtIndex(index))
 447     return;
 448   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 449   info->SetString(kShortcutNameKey, shortcut_name);
 450   // This takes ownership of |info|.
 451   SetInfoForProfileAtIndex(index, info.release());
 452 }
 453
 454 void ProfileInfoCache::SetUserNameOfProfileAtIndex(size_t index,
 455                                                    const string16& user_name) {
 456   if (user_name == GetUserNameOfProfileAtIndex(index))
 457     return;
 458
 459   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 460   info->SetString(kUserNameKey, user_name);
 461   // This takes ownership of |info|.
 462   SetInfoForProfileAtIndex(index, info.release());
 463 }
 464
 465 void ProfileInfoCache::SetAvatarIconOfProfileAtIndex(size_t index,
 466                                                      size_t icon_index) {
 467   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 468   info->SetString(kAvatarIconKey, GetDefaultAvatarIconUrl(icon_index));
 469   // This takes ownership of |info|.
 470   SetInfoForProfileAtIndex(index, info.release());
 471
 472   FilePath profile_path = GetPathOfProfileAtIndex(index);
 473   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 474                     observer_list_,
 475                     OnProfileAvatarChanged(profile_path));
 476 }
 477
 478 void ProfileInfoCache::SetBackgroundStatusOfProfileAtIndex(
 479     size_t index,
 480     bool running_background_apps) {
 481   if (GetBackgroundStatusOfProfileAtIndex(index) == running_background_apps)
 482     return;
 483   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 484   info->SetBoolean(kBackgroundAppsKey, running_background_apps);
 485   // This takes ownership of |info|.
 486   SetInfoForProfileAtIndex(index, info.release());
 487 }
 488
 489 void ProfileInfoCache::SetGAIANameOfProfileAtIndex(size_t index,
 490                                                    const string16& name) {
 491   if (name == GetGAIANameOfProfileAtIndex(index))
 492     return;
 493
 494   string16 old_display_name = GetNameOfProfileAtIndex(index);
 495   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 496   info->SetString(kGAIANameKey, name);
 497   // This takes ownership of |info|.
 498   SetInfoForProfileAtIndex(index, info.release());
 499   string16 new_display_name = GetNameOfProfileAtIndex(index);
 500   FilePath profile_path = GetPathOfProfileAtIndex(index);
 501   UpdateSortForProfileIndex(index);
 502
 503   if (old_display_name != new_display_name) {
 504     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 505                       observer_list_,
 506                       OnProfileNameChanged(profile_path, old_display_name));
 507   }
 508 }
 509
 510 void ProfileInfoCache::SetIsUsingGAIANameOfProfileAtIndex(size_t index,
 511                                                           bool value) {
 512   if (value == IsUsingGAIANameOfProfileAtIndex(index))
 513     return;
 514
 515   string16 old_display_name = GetNameOfProfileAtIndex(index);
 516   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 517   info->SetBoolean(kUseGAIANameKey, value);
 518   // This takes ownership of |info|.
 519   SetInfoForProfileAtIndex(index, info.release());
 520   string16 new_display_name = GetNameOfProfileAtIndex(index);
 521   FilePath profile_path = GetPathOfProfileAtIndex(index);
 522   UpdateSortForProfileIndex(index);
 523
 524   if (old_display_name != new_display_name) {
 525     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 526                       observer_list_,
 527                       OnProfileNameChanged(profile_path, old_display_name));
 528   }
 529 }
 530
 531 void ProfileInfoCache::SetGAIAPictureOfProfileAtIndex(size_t index,
 532                                                       const gfx::Image* image) {
 533   FilePath path = GetPathOfProfileAtIndex(index);
 534   std::string key = CacheKeyFromProfilePath(path);
 535
 536   // Delete the old bitmap from cache.
 537   std::map<std::string, gfx::Image*>::iterator it = gaia_pictures_.find(key);
 538   if (it != gaia_pictures_.end()) {
 539     delete it->second;
 540     gaia_pictures_.erase(it);
 541   }
 542
 543   std::string old_file_name;
 544   GetInfoForProfileAtIndex(index)->GetString(
 545       kGAIAPictureFileNameKey, &old_file_name);
 546   std::string new_file_name;
 547
 548   if (!image) {
 549     // Delete the old bitmap from disk.
 550     if (!old_file_name.empty()) {
 551       FilePath image_path = path.AppendASCII(old_file_name);
 552       BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
 553                               base::Bind(&DeleteBitmap, image_path));
 554     }
 555   } else {
 556     // Save the new bitmap to disk.
 557     gaia_pictures_[key] = new gfx::Image(*image);
 558     scoped_ptr<ImageData> data(new ImageData);
 559     if (!gfx::PNGEncodedDataFromImage(*image, data.get())) {
 560       LOG(ERROR) << "Failed to PNG encode the image.";
 561     } else {
 562       new_file_name =
 563           old_file_name.empty() ? kGAIAPictureFileName : old_file_name;
 564       FilePath image_path = path.AppendASCII(new_file_name);
 565       bool* success = new bool;
 566       BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE,
 567           base::Bind(&SaveBitmap, data.release(), image_path, success),
 568           base::Bind(&ProfileInfoCache::OnGAIAPictureSaved, AsWeakPtr(),
 569                      path, success));
 570     }
 571   }
 572
 573   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 574   info->SetString(kGAIAPictureFileNameKey, new_file_name);
 575   // This takes ownership of |info|.
 576   SetInfoForProfileAtIndex(index, info.release());
 577
 578   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 579                     observer_list_,
 580                     OnProfileAvatarChanged(path));
 581 }
 582
 583 void ProfileInfoCache::SetIsUsingGAIAPictureOfProfileAtIndex(size_t index,
 584                                                              bool value) {
 585   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 586   info->SetBoolean(kUseGAIAPictureKey, value);
 587   // This takes ownership of |info|.
 588   SetInfoForProfileAtIndex(index, info.release());
 589
 590   // Retrieve some info to update observers who care about avatar changes.
 591   FilePath profile_path = GetPathOfProfileAtIndex(index);
 592   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 593                     observer_list_,
 594                     OnProfileAvatarChanged(profile_path));
 595 }
 596
 597 string16 ProfileInfoCache::ChooseNameForNewProfile(size_t icon_index) {
 598   string16 name;
 599   for (int name_index = 1; ; ++name_index) {
 600     if (icon_index < kGenericIconCount) {
 601       name = l10n_util::GetStringFUTF16Int(IDS_NUMBERED_PROFILE_NAME,
 602                                            name_index);
 603     } else {
 604       name = l10n_util::GetStringUTF16(
 605           kDefaultNames[icon_index - kGenericIconCount]);
 606       if (name_index > 1)
 607         name.append(UTF8ToUTF16(base::IntToString(name_index)));
 608     }
 609
 610     // Loop through previously named profiles to ensure we're not duplicating.
 611     bool name_found = false;
 612     for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
 613       if (GetNameOfProfileAtIndex(i) == name) {
 614         name_found = true;
 615         break;
 616       }
 617     }
 618     if (!name_found)
 619       return name;
 620   }
 621 }
 622
 623 bool ProfileInfoCache::GetHasMigratedToGAIAInfoOfProfileAtIndex(
 624       size_t index) const {
 625   bool value = false;
 626   GetInfoForProfileAtIndex(index)->GetBoolean(
 627       kHasMigratedToGAIAInfoKey, &value);
 628   return value;
 629 }
 630
 631 void ProfileInfoCache::SetHasMigratedToGAIAInfoOfProfileAtIndex(
 632     size_t index, bool value) {
 633   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 634   info->SetBoolean(kHasMigratedToGAIAInfoKey, value);
 635   // This takes ownership of |info|.
 636   SetInfoForProfileAtIndex(index, info.release());
 637 }
 638
 639 bool ProfileInfoCache::IconIndexIsUnique(size_t icon_index) const {
 640   for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
 641     if (GetAvatarIconIndexOfProfileAtIndex(i) == icon_index)
 642       return false;
 643   }
 644   return true;
 645 }
 646
 647 bool ProfileInfoCache::ChooseAvatarIconIndexForNewProfile(
 648     bool allow_generic_icon,
 649     bool must_be_unique,
 650     size_t* out_icon_index) const {
 651   size_t start = allow_generic_icon ? 0 : kGenericIconCount;
 652   size_t end = GetDefaultAvatarIconCount();
 653   size_t count = end - start;
 654
 655   int rand = base::RandInt(0, count);
 656   for (size_t i = 0; i < count; ++i) {
 657     size_t icon_index = start + (rand + i) %  count;
 658     if (!must_be_unique || IconIndexIsUnique(icon_index)) {
 659       *out_icon_index = icon_index;
 660       return true;
 661     }
 662   }
 663
 664   return false;
 665 }
 666
 667 size_t ProfileInfoCache::ChooseAvatarIconIndexForNewProfile() const {
 668   size_t icon_index = 0;
 669   // Try to find a unique, non-generic icon.
 670   if (ChooseAvatarIconIndexForNewProfile(false, true, &icon_index))
 671     return icon_index;
 672   // Try to find any unique icon.
 673   if (ChooseAvatarIconIndexForNewProfile(true, true, &icon_index))
 674     return icon_index;
 675   // Settle for any random icon, even if it's not unique.
 676   if (ChooseAvatarIconIndexForNewProfile(true, false, &icon_index))
 677     return icon_index;
 678
 679   NOTREACHED();
 680   return 0;
 681 }
 682
 683 const FilePath& ProfileInfoCache::GetUserDataDir() const {
 684   return user_data_dir_;
 685 }
 686
 687 // static
 688 size_t ProfileInfoCache::GetDefaultAvatarIconCount() {
 689   return kDefaultAvatarIconsCount;
 690 }
 691
 692 // static
 693 int ProfileInfoCache::GetDefaultAvatarIconResourceIDAtIndex(size_t index) {
 694   DCHECK(IsDefaultAvatarIconIndex(index));
 695   return kDefaultAvatarIconResources[index];
 696 }
 697
 698 // static
 699 std::string ProfileInfoCache::GetDefaultAvatarIconUrl(size_t index) {
 700   DCHECK(IsDefaultAvatarIconIndex(index));
 701   return StringPrintf("%s%" PRIuS, kDefaultUrlPrefix, index);
 702 }
 703
 704 // static
 705 bool ProfileInfoCache::IsDefaultAvatarIconIndex(size_t index) {
 706   return index < kDefaultAvatarIconsCount;
 707 }
 708
 709 // static
 710 bool ProfileInfoCache::IsDefaultAvatarIconUrl(const std::string& url,
 711                                               size_t* icon_index) {
 712   DCHECK(icon_index);
 713   if (url.find(kDefaultUrlPrefix) != 0)
 714     return false;
 715
 716   int int_value = -1;
 717   if (base::StringToInt(base::StringPiece(url.begin() +
 718                                           strlen(kDefaultUrlPrefix),
 719                                           url.end()),
 720                         &int_value)) {
 721     if (int_value < 0 ||
 722         int_value >= static_cast<int>(kDefaultAvatarIconsCount))
 723       return false;
 724     *icon_index = int_value;
 725     return true;
 726   }
 727
 728   return false;
 729 }
 730
 731 const DictionaryValue* ProfileInfoCache::GetInfoForProfileAtIndex(
 732     size_t index) const {
 733   DCHECK_LT(index, GetNumberOfProfiles());
 734   const DictionaryValue* cache =
 735       prefs_->GetDictionary(prefs::kProfileInfoCache);
 736   const DictionaryValue* info = NULL;
 737   cache->GetDictionary(sorted_keys_[index], &info);
 738   return info;
 739 }
 740
 741 void ProfileInfoCache::SetInfoForProfileAtIndex(size_t index,
 742                                                 DictionaryValue* info) {
 743   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
 744   DictionaryValue* cache = update.Get();
 745   cache->Set(sorted_keys_[index], info);
 746
 747   content::NotificationService::current()->Notify(
 748       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 749       content::NotificationService::AllSources(),
 750       content::NotificationService::NoDetails());
 751 }
 752
 753 std::string ProfileInfoCache::CacheKeyFromProfilePath(
 754     const FilePath& profile_path) const {
 755   DCHECK(user_data_dir_ == profile_path.DirName());
 756   FilePath base_name = profile_path.BaseName();
 757   return base_name.MaybeAsASCII();
 758 }
 759
 760 std::vector<std::string>::iterator ProfileInfoCache::FindPositionForProfile(
 761     const std::string& search_key,
 762     const string16& search_name) {
 763   string16 search_name_l = base::i18n::ToLower(search_name);
 764   for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
 765     string16 name_l = base::i18n::ToLower(GetNameOfProfileAtIndex(i));
 766     int name_compare = search_name_l.compare(name_l);
 767     if (name_compare < 0)
 768       return sorted_keys_.begin() + i;
 769     if (name_compare == 0) {
 770       int key_compare = search_key.compare(sorted_keys_[i]);
 771       if (key_compare < 0)
 772         return sorted_keys_.begin() + i;
 773     }
 774   }
 775   return sorted_keys_.end();
 776 }
 777
 778 void ProfileInfoCache::UpdateSortForProfileIndex(size_t index) {
 779   string16 name = GetNameOfProfileAtIndex(index);
 780
 781   // Remove and reinsert key in |sorted_keys_| to alphasort.
 782   std::string key = CacheKeyFromProfilePath(GetPathOfProfileAtIndex(index));
 783   std::vector<std::string>::iterator key_it =
 784       std::find(sorted_keys_.begin(), sorted_keys_.end(), key);
 785   DCHECK(key_it != sorted_keys_.end());
 786   sorted_keys_.erase(key_it);
 787   sorted_keys_.insert(FindPositionForProfile(key, name), key);
 788
 789   content::NotificationService::current()->Notify(
 790       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 791       content::NotificationService::AllSources(),
 792       content::NotificationService::NoDetails());
 793 }
 794
 795 // static
 796 std::vector<string16> ProfileInfoCache::GetProfileNames() {
 797   std::vector<string16> names;
 798   PrefService* local_state = g_browser_process->local_state();
 799   const DictionaryValue* cache = local_state->GetDictionary(
 800       prefs::kProfileInfoCache);
 801   string16 name;
 802   for (base::DictionaryValue::key_iterator it = cache->begin_keys();
 803        it != cache->end_keys();
 804        ++it) {
 805     const base::DictionaryValue* info = NULL;
 806     cache->GetDictionary(*it, &info);
 807     info->GetString(kNameKey, &name);
 808     names.push_back(name);
 809   }
 810   return names;
 811 }
 812
 813 // static
 814 void ProfileInfoCache::RegisterPrefs(PrefService* prefs) {
 815   prefs->RegisterDictionaryPref(prefs::kProfileInfoCache);
 816 }