chrome/browser/ui/webui/options/chromeos/user_image_source.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/ui/webui/options/chromeos/user_image_source.h"
   6
   7 #include "base/memory/ref_counted_memory.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/strings/string_split.h"
  10 #include "chrome/common/url_constants.h"
  11 #include "components/user_manager/user_image/default_user_images.h"
  12 #include "components/user_manager/user_manager.h"
  13 #include "grit/theme_resources.h"
  14 #include "grit/ui_chromeos_resources.h"
  15 #include "net/base/escape.h"
  16 #include "ui/base/resource/resource_bundle.h"
  17 #include "ui/gfx/codec/png_codec.h"
  18 #include "url/third_party/mozilla/url_parse.h"
  19
  20 namespace {
  21
  22 // Parses the user image URL, which looks like
  23 // "chrome://userimage/user@host?key1=value1&...&key_n=value_n",
  24 // to user email.
  25 void ParseRequest(const GURL& url,
  26                   std::string* email) {
  27   DCHECK(url.is_valid());
  28   *email = net::UnescapeURLComponent(url.path().substr(1),
  29                                     (net::UnescapeRule::URL_SPECIAL_CHARS |
  30                                      net::UnescapeRule::SPACES));
  31 }
  32
  33 }  // namespace
  34
  35 namespace chromeos {
  36 namespace options {
  37
  38 // Static.
  39 base::RefCountedMemory* UserImageSource::GetUserImage(
  40     const std::string& email,
  41     ui::ScaleFactor scale_factor) {
  42   const user_manager::User* user =
  43       user_manager::UserManager::Get()->FindUser(email);
  44   if (user) {
  45     if (user->has_raw_image()) {
  46       return new base::RefCountedBytes(user->raw_image());
  47     } else if (user->image_is_stub()) {
  48       return ResourceBundle::GetSharedInstance().
  49           LoadDataResourceBytesForScale(IDR_PROFILE_PICTURE_LOADING,
  50                                         scale_factor);
  51     } else if (user->HasDefaultImage()) {
  52       return ResourceBundle::GetSharedInstance().
  53           LoadDataResourceBytesForScale(
  54               user_manager::kDefaultImageResourceIDs[user->image_index()],
  55               scale_factor);
  56     } else {
  57       NOTREACHED() << "User with custom image missing raw data";
  58     }
  59   }
  60   return ResourceBundle::GetSharedInstance().
  61       LoadDataResourceBytesForScale(IDR_LOGIN_DEFAULT_USER, scale_factor);
  62 }
  63
  64 UserImageSource::UserImageSource() {
  65 }
  66
  67 UserImageSource::~UserImageSource() {}
  68
  69 std::string UserImageSource::GetSource() const {
  70   return chrome::kChromeUIUserImageHost;
  71 }
  72
  73 void UserImageSource::StartDataRequest(
  74     const std::string& path,
  75     int render_process_id,
  76     int render_frame_id,
  77     const content::URLDataSource::GotDataCallback& callback) {
  78   std::string email;
  79   GURL url(chrome::kChromeUIUserImageURL + path);
  80   ParseRequest(url, &email);
  81   callback.Run(GetUserImage(email, ui::SCALE_FACTOR_100P));
  82 }
  83
  84 std::string UserImageSource::GetMimeType(const std::string& path) const {
  85   // We need to explicitly return a mime type, otherwise if the user tries to
  86   // drag the image they get no extension.
  87   return "image/png";
  88 }
  89
  90 }  // namespace options
  91 }  // namespace chromeos