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/prefs/pref_registry_simple.h"
  14 #include "base/prefs/pref_service.h"
  15 #include "base/rand_util.h"
  16 #include "base/stl_util.h"
  17 #include "base/stringprintf.h"
  18 #include "base/strings/string_number_conversions.h"
  19 #include "base/strings/string_piece.h"
  20 #include "base/utf_string_conversions.h"
  21 #include "base/values.h"
  22 #include "chrome/browser/browser_process.h"
  23 #include "chrome/browser/prefs/scoped_user_pref_update.h"
  24 #include "chrome/common/chrome_notification_types.h"
  25 #include "chrome/common/pref_names.h"
  26 #include "content/public/browser/browser_thread.h"
  27 #include "content/public/browser/notification_service.h"
  28 #include "grit/generated_resources.h"
  29 #include "grit/theme_resources.h"
  30 #include "third_party/skia/include/core/SkBitmap.h"
  31 #include "ui/base/l10n/l10n_util.h"
  32 #include "ui/base/resource/resource_bundle.h"
  33 #include "ui/gfx/image/image.h"
  34 #include "ui/gfx/image/image_util.h"
  35
  36 using content::BrowserThread;
  37
  38 namespace {
  39
  40 const char kNameKey[] = "name";
  41 const char kShortcutNameKey[] = "shortcut_name";
  42 const char kGAIANameKey[] = "gaia_name";
  43 const char kUseGAIANameKey[] = "use_gaia_name";
  44 const char kUserNameKey[] = "user_name";
  45 const char kAvatarIconKey[] = "avatar_icon";
  46 const char kUseGAIAPictureKey[] = "use_gaia_picture";
  47 const char kBackgroundAppsKey[] = "background_apps";
  48 const char kHasMigratedToGAIAInfoKey[] = "has_migrated_to_gaia_info";
  49 const char kGAIAPictureFileNameKey[] = "gaia_picture_file_name";
  50 const char kIsManagedKey[] = "is_managed";
  51
  52 const char kDefaultUrlPrefix[] = "chrome://theme/IDR_PROFILE_AVATAR_";
  53 const char kGAIAPictureFileName[] = "Google Profile Picture.png";
  54
  55 const int kDefaultAvatarIconResources[] = {
  56   IDR_PROFILE_AVATAR_0,
  57   IDR_PROFILE_AVATAR_1,
  58   IDR_PROFILE_AVATAR_2,
  59   IDR_PROFILE_AVATAR_3,
  60   IDR_PROFILE_AVATAR_4,
  61   IDR_PROFILE_AVATAR_5,
  62   IDR_PROFILE_AVATAR_6,
  63   IDR_PROFILE_AVATAR_7,
  64   IDR_PROFILE_AVATAR_8,
  65   IDR_PROFILE_AVATAR_9,
  66   IDR_PROFILE_AVATAR_10,
  67   IDR_PROFILE_AVATAR_11,
  68   IDR_PROFILE_AVATAR_12,
  69   IDR_PROFILE_AVATAR_13,
  70   IDR_PROFILE_AVATAR_14,
  71   IDR_PROFILE_AVATAR_15,
  72   IDR_PROFILE_AVATAR_16,
  73   IDR_PROFILE_AVATAR_17,
  74   IDR_PROFILE_AVATAR_18,
  75   IDR_PROFILE_AVATAR_19,
  76   IDR_PROFILE_AVATAR_20,
  77   IDR_PROFILE_AVATAR_21,
  78   IDR_PROFILE_AVATAR_22,
  79   IDR_PROFILE_AVATAR_23,
  80   IDR_PROFILE_AVATAR_24,
  81   IDR_PROFILE_AVATAR_25,
  82 };
  83
  84 const size_t kDefaultAvatarIconsCount = arraysize(kDefaultAvatarIconResources);
  85
  86 // The first 8 icons are generic.
  87 const size_t kGenericIconCount = 8;
  88
  89 // First eight are generic icons, which use IDS_NUMBERED_PROFILE_NAME.
  90 const int kDefaultNames[] = {
  91   IDS_DEFAULT_AVATAR_NAME_8,
  92   IDS_DEFAULT_AVATAR_NAME_9,
  93   IDS_DEFAULT_AVATAR_NAME_10,
  94   IDS_DEFAULT_AVATAR_NAME_11,
  95   IDS_DEFAULT_AVATAR_NAME_12,
  96   IDS_DEFAULT_AVATAR_NAME_13,
  97   IDS_DEFAULT_AVATAR_NAME_14,
  98   IDS_DEFAULT_AVATAR_NAME_15,
  99   IDS_DEFAULT_AVATAR_NAME_16,
 100   IDS_DEFAULT_AVATAR_NAME_17,
 101   IDS_DEFAULT_AVATAR_NAME_18,
 102   IDS_DEFAULT_AVATAR_NAME_19,
 103   IDS_DEFAULT_AVATAR_NAME_20,
 104   IDS_DEFAULT_AVATAR_NAME_21,
 105   IDS_DEFAULT_AVATAR_NAME_22,
 106   IDS_DEFAULT_AVATAR_NAME_23,
 107   IDS_DEFAULT_AVATAR_NAME_24,
 108   IDS_DEFAULT_AVATAR_NAME_25
 109 };
 110
 111 typedef std::vector<unsigned char> ImageData;
 112
 113 // Writes |data| to disk and takes ownership of the pointer. On completion
 114 // |success| is set to true on success and false on failure.
 115 void SaveBitmap(ImageData* data,
 116                 const base::FilePath& image_path,
 117                 bool* success) {
 118   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 119   scoped_ptr<ImageData> data_owner(data);
 120   *success = false;
 121
 122   // Make sure the destination directory exists.
 123   base::FilePath dir = image_path.DirName();
 124   if (!file_util::DirectoryExists(dir) && !file_util::CreateDirectory(dir)) {
 125     LOG(ERROR) << "Failed to create parent directory.";
 126     return;
 127   }
 128
 129   if (file_util::WriteFile(image_path,
 130                            reinterpret_cast<char*>(&(*data)[0]),
 131                            data->size()) == -1) {
 132     LOG(ERROR) << "Failed to save image to file.";
 133     return;
 134   }
 135
 136   *success = true;
 137 }
 138
 139 // Reads a PNG from disk and decodes it. If the bitmap was successfully read
 140 // from disk the then |out_image| will contain the bitmap image, otherwise it
 141 // will be NULL.
 142 void ReadBitmap(const base::FilePath& image_path,
 143                 gfx::Image** out_image) {
 144   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 145   *out_image = NULL;
 146
 147   std::string image_data;
 148   if (!file_util::ReadFileToString(image_path, &image_data)) {
 149     LOG(ERROR) << "Failed to read PNG file from disk.";
 150     return;
 151   }
 152
 153   const unsigned char* data =
 154       reinterpret_cast<const unsigned char*>(image_data.data());
 155   gfx::Image image =
 156       gfx::Image::CreateFrom1xPNGBytes(data, image_data.length());
 157   if (image.IsEmpty()) {
 158     LOG(ERROR) << "Failed to decode PNG file.";
 159     return;
 160   }
 161
 162   *out_image = new gfx::Image(image);
 163 }
 164
 165 void DeleteBitmap(const base::FilePath& image_path) {
 166   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 167   file_util::Delete(image_path, false);
 168 }
 169
 170 }  // namespace
 171
 172 ProfileInfoCache::ProfileInfoCache(PrefService* prefs,
 173                                    const base::FilePath& user_data_dir)
 174     : prefs_(prefs),
 175       user_data_dir_(user_data_dir) {
 176   // Populate the cache
 177   const DictionaryValue* cache =
 178       prefs_->GetDictionary(prefs::kProfileInfoCache);
 179   for (DictionaryValue::Iterator it(*cache); !it.IsAtEnd(); it.Advance()) {
 180     const DictionaryValue* info = NULL;
 181     it.value().GetAsDictionary(&info);
 182     string16 name;
 183     info->GetString(kNameKey, &name);
 184     sorted_keys_.insert(FindPositionForProfile(it.key(), name), it.key());
 185   }
 186 }
 187
 188 ProfileInfoCache::~ProfileInfoCache() {
 189   STLDeleteContainerPairSecondPointers(
 190       gaia_pictures_.begin(), gaia_pictures_.end());
 191 }
 192
 193 void ProfileInfoCache::AddProfileToCache(const base::FilePath& profile_path,
 194                                          const string16& name,
 195                                          const string16& username,
 196                                          size_t icon_index,
 197                                          bool is_managed) {
 198   std::string key = CacheKeyFromProfilePath(profile_path);
 199   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
 200   DictionaryValue* cache = update.Get();
 201
 202   scoped_ptr<DictionaryValue> info(new DictionaryValue);
 203   info->SetString(kNameKey, name);
 204   info->SetString(kUserNameKey, username);
 205   info->SetString(kAvatarIconKey, GetDefaultAvatarIconUrl(icon_index));
 206   // Default value for whether background apps are running is false.
 207   info->SetBoolean(kBackgroundAppsKey, false);
 208   info->SetBoolean(kIsManagedKey, is_managed);
 209   cache->Set(key, info.release());
 210
 211   sorted_keys_.insert(FindPositionForProfile(key, name), key);
 212
 213   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 214                     observer_list_,
 215                     OnProfileAdded(profile_path));
 216
 217   content::NotificationService::current()->Notify(
 218       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 219       content::NotificationService::AllSources(),
 220       content::NotificationService::NoDetails());
 221 }
 222
 223 void ProfileInfoCache::AddObserver(ProfileInfoCacheObserver* obs) {
 224   observer_list_.AddObserver(obs);
 225 }
 226
 227 void ProfileInfoCache::RemoveObserver(ProfileInfoCacheObserver* obs) {
 228   observer_list_.RemoveObserver(obs);
 229 }
 230
 231 void ProfileInfoCache::DeleteProfileFromCache(
 232     const base::FilePath& profile_path) {
 233   size_t profile_index = GetIndexOfProfileWithPath(profile_path);
 234   if (profile_index == std::string::npos) {
 235     NOTREACHED();
 236     return;
 237   }
 238   string16 name = GetNameOfProfileAtIndex(profile_index);
 239
 240   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 241                     observer_list_,
 242                     OnProfileWillBeRemoved(profile_path));
 243
 244   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
 245   DictionaryValue* cache = update.Get();
 246   std::string key = CacheKeyFromProfilePath(profile_path);
 247   cache->Remove(key, NULL);
 248   sorted_keys_.erase(std::find(sorted_keys_.begin(), sorted_keys_.end(), key));
 249
 250   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 251                     observer_list_,
 252                     OnProfileWasRemoved(profile_path, name));
 253
 254   content::NotificationService::current()->Notify(
 255       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 256       content::NotificationService::AllSources(),
 257       content::NotificationService::NoDetails());
 258 }
 259
 260 size_t ProfileInfoCache::GetNumberOfProfiles() const {
 261   return sorted_keys_.size();
 262 }
 263
 264 size_t ProfileInfoCache::GetIndexOfProfileWithPath(
 265     const base::FilePath& profile_path) const {
 266   if (profile_path.DirName() != user_data_dir_)
 267     return std::string::npos;
 268   std::string search_key = CacheKeyFromProfilePath(profile_path);
 269   for (size_t i = 0; i < sorted_keys_.size(); ++i) {
 270     if (sorted_keys_[i] == search_key)
 271       return i;
 272   }
 273   return std::string::npos;
 274 }
 275
 276 string16 ProfileInfoCache::GetNameOfProfileAtIndex(size_t index) const {
 277   string16 name;
 278   if (IsUsingGAIANameOfProfileAtIndex(index))
 279     name = GetGAIANameOfProfileAtIndex(index);
 280   if (name.empty())
 281     GetInfoForProfileAtIndex(index)->GetString(kNameKey, &name);
 282   return name;
 283 }
 284
 285 string16 ProfileInfoCache::GetShortcutNameOfProfileAtIndex(size_t index)
 286     const {
 287   string16 shortcut_name;
 288   GetInfoForProfileAtIndex(index)->GetString(
 289       kShortcutNameKey, &shortcut_name);
 290   return shortcut_name;
 291 }
 292
 293 base::FilePath ProfileInfoCache::GetPathOfProfileAtIndex(size_t index) const {
 294   return user_data_dir_.AppendASCII(sorted_keys_[index]);
 295 }
 296
 297 string16 ProfileInfoCache::GetUserNameOfProfileAtIndex(size_t index) const {
 298   string16 user_name;
 299   GetInfoForProfileAtIndex(index)->GetString(kUserNameKey, &user_name);
 300   return user_name;
 301 }
 302
 303 const gfx::Image& ProfileInfoCache::GetAvatarIconOfProfileAtIndex(
 304     size_t index) const {
 305   if (IsUsingGAIAPictureOfProfileAtIndex(index)) {
 306     const gfx::Image* image = GetGAIAPictureOfProfileAtIndex(index);
 307     if (image)
 308       return *image;
 309   }
 310
 311   int resource_id = GetDefaultAvatarIconResourceIDAtIndex(
 312       GetAvatarIconIndexOfProfileAtIndex(index));
 313   return ResourceBundle::GetSharedInstance().GetNativeImageNamed(resource_id);
 314 }
 315
 316 bool ProfileInfoCache::GetBackgroundStatusOfProfileAtIndex(
 317     size_t index) const {
 318   bool background_app_status;
 319   if (!GetInfoForProfileAtIndex(index)->GetBoolean(kBackgroundAppsKey,
 320                                                    &background_app_status)) {
 321     return false;
 322   }
 323   return background_app_status;
 324 }
 325
 326 string16 ProfileInfoCache::GetGAIANameOfProfileAtIndex(size_t index) const {
 327   string16 name;
 328   GetInfoForProfileAtIndex(index)->GetString(kGAIANameKey, &name);
 329   return name;
 330 }
 331
 332 bool ProfileInfoCache::IsUsingGAIANameOfProfileAtIndex(size_t index) const {
 333   bool value = false;
 334   GetInfoForProfileAtIndex(index)->GetBoolean(kUseGAIANameKey, &value);
 335   return value;
 336 }
 337
 338 const gfx::Image* ProfileInfoCache::GetGAIAPictureOfProfileAtIndex(
 339     size_t index) const {
 340   base::FilePath path = GetPathOfProfileAtIndex(index);
 341   std::string key = CacheKeyFromProfilePath(path);
 342
 343   // If the picture is already loaded then use it.
 344   if (gaia_pictures_.count(key)) {
 345     if (gaia_pictures_[key]->IsEmpty())
 346       return NULL;
 347     return gaia_pictures_[key];
 348   }
 349
 350   std::string file_name;
 351   GetInfoForProfileAtIndex(index)->GetString(
 352       kGAIAPictureFileNameKey, &file_name);
 353
 354   // If the picture is not on disk or it is already being loaded then return
 355   // NULL.
 356   if (file_name.empty() || gaia_pictures_loading_[key])
 357     return NULL;
 358
 359   gaia_pictures_loading_[key] = true;
 360   base::FilePath image_path = path.AppendASCII(file_name);
 361   gfx::Image** image = new gfx::Image*;
 362   BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE,
 363       base::Bind(&ReadBitmap, image_path, image),
 364       base::Bind(&ProfileInfoCache::OnGAIAPictureLoaded,
 365           const_cast<ProfileInfoCache*>(this)->AsWeakPtr(), path, image));
 366
 367   return NULL;
 368 }
 369
 370 bool ProfileInfoCache::ProfileIsManagedAtIndex(size_t index) const {
 371   bool value = false;
 372   GetInfoForProfileAtIndex(index)->GetBoolean(kIsManagedKey, &value);
 373   return value;
 374 }
 375
 376 void ProfileInfoCache::OnGAIAPictureLoaded(const base::FilePath& path,
 377                                            gfx::Image** image) const {
 378   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 379
 380   std::string key = CacheKeyFromProfilePath(path);
 381   gaia_pictures_loading_[key] = false;
 382
 383   if (*image) {
 384     delete gaia_pictures_[key];
 385     gaia_pictures_[key] = *image;
 386   } else {
 387     // Place an empty image in the cache to avoid reloading it again.
 388     gaia_pictures_[key] = new gfx::Image();
 389   }
 390   delete image;
 391
 392   content::NotificationService::current()->Notify(
 393       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 394       content::NotificationService::AllSources(),
 395       content::NotificationService::NoDetails());
 396 }
 397
 398 void ProfileInfoCache::OnGAIAPictureSaved(const base::FilePath& path,
 399                                           bool* success) const  {
 400   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 401
 402   if (*success) {
 403     content::NotificationService::current()->Notify(
 404         chrome::NOTIFICATION_PROFILE_CACHE_PICTURE_SAVED,
 405         content::NotificationService::AllSources(),
 406         content::NotificationService::NoDetails());
 407   }
 408   delete success;
 409 }
 410
 411 bool ProfileInfoCache::IsUsingGAIAPictureOfProfileAtIndex(
 412     size_t index) const {
 413   bool value = false;
 414   GetInfoForProfileAtIndex(index)->GetBoolean(kUseGAIAPictureKey, &value);
 415   return value;
 416 }
 417
 418 size_t ProfileInfoCache::GetAvatarIconIndexOfProfileAtIndex(size_t index)
 419     const {
 420   std::string icon_url;
 421   GetInfoForProfileAtIndex(index)->GetString(kAvatarIconKey, &icon_url);
 422   size_t icon_index = 0;
 423   if (IsDefaultAvatarIconUrl(icon_url, &icon_index))
 424     return icon_index;
 425
 426   DLOG(WARNING) << "Unknown avatar icon: " << icon_url;
 427   return GetDefaultAvatarIconResourceIDAtIndex(0);
 428 }
 429
 430 void ProfileInfoCache::SetNameOfProfileAtIndex(size_t index,
 431                                                const string16& name) {
 432   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 433   string16 current_name;
 434   info->GetString(kNameKey, &current_name);
 435   if (name == current_name)
 436     return;
 437
 438   string16 old_display_name = GetNameOfProfileAtIndex(index);
 439   info->SetString(kNameKey, name);
 440   // This takes ownership of |info|.
 441   SetInfoForProfileAtIndex(index, info.release());
 442   string16 new_display_name = GetNameOfProfileAtIndex(index);
 443   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
 444   UpdateSortForProfileIndex(index);
 445
 446   if (old_display_name != new_display_name) {
 447     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 448                       observer_list_,
 449                       OnProfileNameChanged(profile_path, old_display_name));
 450   }
 451 }
 452
 453 void ProfileInfoCache::SetShortcutNameOfProfileAtIndex(
 454     size_t index,
 455     const string16& shortcut_name) {
 456   if (shortcut_name == GetShortcutNameOfProfileAtIndex(index))
 457     return;
 458   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 459   info->SetString(kShortcutNameKey, shortcut_name);
 460   // This takes ownership of |info|.
 461   SetInfoForProfileAtIndex(index, info.release());
 462 }
 463
 464 void ProfileInfoCache::SetUserNameOfProfileAtIndex(size_t index,
 465                                                    const string16& user_name) {
 466   if (user_name == GetUserNameOfProfileAtIndex(index))
 467     return;
 468
 469   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 470   info->SetString(kUserNameKey, user_name);
 471   // This takes ownership of |info|.
 472   SetInfoForProfileAtIndex(index, info.release());
 473 }
 474
 475 void ProfileInfoCache::SetAvatarIconOfProfileAtIndex(size_t index,
 476                                                      size_t icon_index) {
 477   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 478   info->SetString(kAvatarIconKey, GetDefaultAvatarIconUrl(icon_index));
 479   // This takes ownership of |info|.
 480   SetInfoForProfileAtIndex(index, info.release());
 481
 482   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
 483   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 484                     observer_list_,
 485                     OnProfileAvatarChanged(profile_path));
 486 }
 487
 488 void ProfileInfoCache::SetBackgroundStatusOfProfileAtIndex(
 489     size_t index,
 490     bool running_background_apps) {
 491   if (GetBackgroundStatusOfProfileAtIndex(index) == running_background_apps)
 492     return;
 493   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 494   info->SetBoolean(kBackgroundAppsKey, running_background_apps);
 495   // This takes ownership of |info|.
 496   SetInfoForProfileAtIndex(index, info.release());
 497 }
 498
 499 void ProfileInfoCache::SetGAIANameOfProfileAtIndex(size_t index,
 500                                                    const string16& name) {
 501   if (name == GetGAIANameOfProfileAtIndex(index))
 502     return;
 503
 504   string16 old_display_name = GetNameOfProfileAtIndex(index);
 505   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 506   info->SetString(kGAIANameKey, name);
 507   // This takes ownership of |info|.
 508   SetInfoForProfileAtIndex(index, info.release());
 509   string16 new_display_name = GetNameOfProfileAtIndex(index);
 510   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
 511   UpdateSortForProfileIndex(index);
 512
 513   if (old_display_name != new_display_name) {
 514     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 515                       observer_list_,
 516                       OnProfileNameChanged(profile_path, old_display_name));
 517   }
 518 }
 519
 520 void ProfileInfoCache::SetIsUsingGAIANameOfProfileAtIndex(size_t index,
 521                                                           bool value) {
 522   if (value == IsUsingGAIANameOfProfileAtIndex(index))
 523     return;
 524
 525   string16 old_display_name = GetNameOfProfileAtIndex(index);
 526   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 527   info->SetBoolean(kUseGAIANameKey, value);
 528   // This takes ownership of |info|.
 529   SetInfoForProfileAtIndex(index, info.release());
 530   string16 new_display_name = GetNameOfProfileAtIndex(index);
 531   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
 532   UpdateSortForProfileIndex(index);
 533
 534   if (old_display_name != new_display_name) {
 535     FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 536                       observer_list_,
 537                       OnProfileNameChanged(profile_path, old_display_name));
 538   }
 539 }
 540
 541 void ProfileInfoCache::SetGAIAPictureOfProfileAtIndex(size_t index,
 542                                                       const gfx::Image* image) {
 543   base::FilePath path = GetPathOfProfileAtIndex(index);
 544   std::string key = CacheKeyFromProfilePath(path);
 545
 546   // Delete the old bitmap from cache.
 547   std::map<std::string, gfx::Image*>::iterator it = gaia_pictures_.find(key);
 548   if (it != gaia_pictures_.end()) {
 549     delete it->second;
 550     gaia_pictures_.erase(it);
 551   }
 552
 553   std::string old_file_name;
 554   GetInfoForProfileAtIndex(index)->GetString(
 555       kGAIAPictureFileNameKey, &old_file_name);
 556   std::string new_file_name;
 557
 558   if (!image) {
 559     // Delete the old bitmap from disk.
 560     if (!old_file_name.empty()) {
 561       base::FilePath image_path = path.AppendASCII(old_file_name);
 562       BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
 563                               base::Bind(&DeleteBitmap, image_path));
 564     }
 565   } else {
 566     // Save the new bitmap to disk.
 567     gaia_pictures_[key] = new gfx::Image(*image);
 568     scoped_ptr<ImageData> data(new ImageData);
 569     scoped_refptr<base::RefCountedMemory> png_data = image->As1xPNGBytes();
 570     data->assign(png_data->front(), png_data->front() + png_data->size());
 571     if (!data->size()) {
 572       LOG(ERROR) << "Failed to PNG encode the image.";
 573     } else {
 574       new_file_name =
 575           old_file_name.empty() ? kGAIAPictureFileName : old_file_name;
 576       base::FilePath image_path = path.AppendASCII(new_file_name);
 577       bool* success = new bool;
 578       BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE,
 579           base::Bind(&SaveBitmap, data.release(), image_path, success),
 580           base::Bind(&ProfileInfoCache::OnGAIAPictureSaved, AsWeakPtr(),
 581                      path, success));
 582     }
 583   }
 584
 585   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 586   info->SetString(kGAIAPictureFileNameKey, new_file_name);
 587   // This takes ownership of |info|.
 588   SetInfoForProfileAtIndex(index, info.release());
 589
 590   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 591                     observer_list_,
 592                     OnProfileAvatarChanged(path));
 593 }
 594
 595 void ProfileInfoCache::SetIsUsingGAIAPictureOfProfileAtIndex(size_t index,
 596                                                              bool value) {
 597   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 598   info->SetBoolean(kUseGAIAPictureKey, value);
 599   // This takes ownership of |info|.
 600   SetInfoForProfileAtIndex(index, info.release());
 601
 602   // Retrieve some info to update observers who care about avatar changes.
 603   base::FilePath profile_path = GetPathOfProfileAtIndex(index);
 604   FOR_EACH_OBSERVER(ProfileInfoCacheObserver,
 605                     observer_list_,
 606                     OnProfileAvatarChanged(profile_path));
 607 }
 608
 609 string16 ProfileInfoCache::ChooseNameForNewProfile(size_t icon_index) const {
 610   string16 name;
 611   for (int name_index = 1; ; ++name_index) {
 612     if (icon_index < kGenericIconCount) {
 613       name = l10n_util::GetStringFUTF16Int(IDS_NUMBERED_PROFILE_NAME,
 614                                            name_index);
 615     } else {
 616       name = l10n_util::GetStringUTF16(
 617           kDefaultNames[icon_index - kGenericIconCount]);
 618       if (name_index > 1)
 619         name.append(UTF8ToUTF16(base::IntToString(name_index)));
 620     }
 621
 622     // Loop through previously named profiles to ensure we're not duplicating.
 623     bool name_found = false;
 624     for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
 625       if (GetNameOfProfileAtIndex(i) == name) {
 626         name_found = true;
 627         break;
 628       }
 629     }
 630     if (!name_found)
 631       return name;
 632   }
 633 }
 634
 635 bool ProfileInfoCache::GetHasMigratedToGAIAInfoOfProfileAtIndex(
 636       size_t index) const {
 637   bool value = false;
 638   GetInfoForProfileAtIndex(index)->GetBoolean(
 639       kHasMigratedToGAIAInfoKey, &value);
 640   return value;
 641 }
 642
 643 void ProfileInfoCache::SetHasMigratedToGAIAInfoOfProfileAtIndex(
 644     size_t index, bool value) {
 645   scoped_ptr<DictionaryValue> info(GetInfoForProfileAtIndex(index)->DeepCopy());
 646   info->SetBoolean(kHasMigratedToGAIAInfoKey, value);
 647   // This takes ownership of |info|.
 648   SetInfoForProfileAtIndex(index, info.release());
 649 }
 650
 651 bool ProfileInfoCache::IconIndexIsUnique(size_t icon_index) const {
 652   for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
 653     if (GetAvatarIconIndexOfProfileAtIndex(i) == icon_index)
 654       return false;
 655   }
 656   return true;
 657 }
 658
 659 bool ProfileInfoCache::ChooseAvatarIconIndexForNewProfile(
 660     bool allow_generic_icon,
 661     bool must_be_unique,
 662     size_t* out_icon_index) const {
 663   size_t start = allow_generic_icon ? 0 : kGenericIconCount;
 664   size_t end = GetDefaultAvatarIconCount();
 665   size_t count = end - start;
 666
 667   int rand = base::RandInt(0, count);
 668   for (size_t i = 0; i < count; ++i) {
 669     size_t icon_index = start + (rand + i) %  count;
 670     if (!must_be_unique || IconIndexIsUnique(icon_index)) {
 671       *out_icon_index = icon_index;
 672       return true;
 673     }
 674   }
 675
 676   return false;
 677 }
 678
 679 size_t ProfileInfoCache::ChooseAvatarIconIndexForNewProfile() const {
 680   size_t icon_index = 0;
 681   // Try to find a unique, non-generic icon.
 682   if (ChooseAvatarIconIndexForNewProfile(false, true, &icon_index))
 683     return icon_index;
 684   // Try to find any unique icon.
 685   if (ChooseAvatarIconIndexForNewProfile(true, true, &icon_index))
 686     return icon_index;
 687   // Settle for any random icon, even if it's not unique.
 688   if (ChooseAvatarIconIndexForNewProfile(true, false, &icon_index))
 689     return icon_index;
 690
 691   NOTREACHED();
 692   return 0;
 693 }
 694
 695 const base::FilePath& ProfileInfoCache::GetUserDataDir() const {
 696   return user_data_dir_;
 697 }
 698
 699 // static
 700 size_t ProfileInfoCache::GetDefaultAvatarIconCount() {
 701   return kDefaultAvatarIconsCount;
 702 }
 703
 704 // static
 705 int ProfileInfoCache::GetDefaultAvatarIconResourceIDAtIndex(size_t index) {
 706   DCHECK(IsDefaultAvatarIconIndex(index));
 707   return kDefaultAvatarIconResources[index];
 708 }
 709
 710 // static
 711 std::string ProfileInfoCache::GetDefaultAvatarIconUrl(size_t index) {
 712   DCHECK(IsDefaultAvatarIconIndex(index));
 713   return base::StringPrintf("%s%" PRIuS, kDefaultUrlPrefix, index);
 714 }
 715
 716 // static
 717 bool ProfileInfoCache::IsDefaultAvatarIconIndex(size_t index) {
 718   return index < kDefaultAvatarIconsCount;
 719 }
 720
 721 // static
 722 bool ProfileInfoCache::IsDefaultAvatarIconUrl(const std::string& url,
 723                                               size_t* icon_index) {
 724   DCHECK(icon_index);
 725   if (url.find(kDefaultUrlPrefix) != 0)
 726     return false;
 727
 728   int int_value = -1;
 729   if (base::StringToInt(base::StringPiece(url.begin() +
 730                                           strlen(kDefaultUrlPrefix),
 731                                           url.end()),
 732                         &int_value)) {
 733     if (int_value < 0 ||
 734         int_value >= static_cast<int>(kDefaultAvatarIconsCount))
 735       return false;
 736     *icon_index = int_value;
 737     return true;
 738   }
 739
 740   return false;
 741 }
 742
 743 const DictionaryValue* ProfileInfoCache::GetInfoForProfileAtIndex(
 744     size_t index) const {
 745   DCHECK_LT(index, GetNumberOfProfiles());
 746   const DictionaryValue* cache =
 747       prefs_->GetDictionary(prefs::kProfileInfoCache);
 748   const DictionaryValue* info = NULL;
 749   cache->GetDictionary(sorted_keys_[index], &info);
 750   return info;
 751 }
 752
 753 void ProfileInfoCache::SetInfoForProfileAtIndex(size_t index,
 754                                                 DictionaryValue* info) {
 755   DictionaryPrefUpdate update(prefs_, prefs::kProfileInfoCache);
 756   DictionaryValue* cache = update.Get();
 757   cache->Set(sorted_keys_[index], info);
 758
 759   content::NotificationService::current()->Notify(
 760       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 761       content::NotificationService::AllSources(),
 762       content::NotificationService::NoDetails());
 763 }
 764
 765 std::string ProfileInfoCache::CacheKeyFromProfilePath(
 766     const base::FilePath& profile_path) const {
 767   DCHECK(user_data_dir_ == profile_path.DirName());
 768   base::FilePath base_name = profile_path.BaseName();
 769   return base_name.MaybeAsASCII();
 770 }
 771
 772 std::vector<std::string>::iterator ProfileInfoCache::FindPositionForProfile(
 773     const std::string& search_key,
 774     const string16& search_name) {
 775   string16 search_name_l = base::i18n::ToLower(search_name);
 776   for (size_t i = 0; i < GetNumberOfProfiles(); ++i) {
 777     string16 name_l = base::i18n::ToLower(GetNameOfProfileAtIndex(i));
 778     int name_compare = search_name_l.compare(name_l);
 779     if (name_compare < 0)
 780       return sorted_keys_.begin() + i;
 781     if (name_compare == 0) {
 782       int key_compare = search_key.compare(sorted_keys_[i]);
 783       if (key_compare < 0)
 784         return sorted_keys_.begin() + i;
 785     }
 786   }
 787   return sorted_keys_.end();
 788 }
 789
 790 void ProfileInfoCache::UpdateSortForProfileIndex(size_t index) {
 791   string16 name = GetNameOfProfileAtIndex(index);
 792
 793   // Remove and reinsert key in |sorted_keys_| to alphasort.
 794   std::string key = CacheKeyFromProfilePath(GetPathOfProfileAtIndex(index));
 795   std::vector<std::string>::iterator key_it =
 796       std::find(sorted_keys_.begin(), sorted_keys_.end(), key);
 797   DCHECK(key_it != sorted_keys_.end());
 798   sorted_keys_.erase(key_it);
 799   sorted_keys_.insert(FindPositionForProfile(key, name), key);
 800
 801   content::NotificationService::current()->Notify(
 802       chrome::NOTIFICATION_PROFILE_CACHED_INFO_CHANGED,
 803       content::NotificationService::AllSources(),
 804       content::NotificationService::NoDetails());
 805 }
 806
 807 // static
 808 std::vector<string16> ProfileInfoCache::GetProfileNames() {
 809   std::vector<string16> names;
 810   PrefService* local_state = g_browser_process->local_state();
 811   const DictionaryValue* cache = local_state->GetDictionary(
 812       prefs::kProfileInfoCache);
 813   string16 name;
 814   for (base::DictionaryValue::Iterator it(*cache); !it.IsAtEnd();
 815        it.Advance()) {
 816     const base::DictionaryValue* info = NULL;
 817     it.value().GetAsDictionary(&info);
 818     info->GetString(kNameKey, &name);
 819     names.push_back(name);
 820   }
 821   return names;
 822 }
 823
 824 // static
 825 void ProfileInfoCache::RegisterPrefs(PrefRegistrySimple* registry) {
 826   registry->RegisterDictionaryPref(prefs::kProfileInfoCache);
 827 }