chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.cc

   1 // Copyright (c) 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/ui/webui/chromeos/login/user_image_screen_handler.h"
   6
   7 #include "ash/audio/sounds.h"
   8 #include "base/command_line.h"
   9 #include "base/logging.h"
  10 #include "base/metrics/histogram.h"
  11 #include "base/values.h"
  12 #include "chrome/browser/chromeos/login/existing_user_controller.h"
  13 #include "chrome/browser/chromeos/login/ui/webui_login_display.h"
  14 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
  15 #include "chrome/common/chrome_switches.h"
  16 #include "chrome/common/url_constants.h"
  17 #include "chrome/grit/generated_resources.h"
  18 #include "chromeos/audio/chromeos_sounds.h"
  19 #include "components/user_manager/user.h"
  20 #include "components/user_manager/user_image/default_user_images.h"
  21 #include "grit/browser_resources.h"
  22 #include "media/audio/sounds/sounds_manager.h"
  23 #include "net/base/data_url.h"
  24 #include "ui/base/l10n/l10n_util.h"
  25 #include "ui/base/resource/resource_bundle.h"
  26 #include "url/gurl.h"
  27
  28 namespace {
  29
  30 const char kJsScreenPath[] = "login.UserImageScreen";
  31
  32 }  // namespace
  33
  34 namespace chromeos {
  35
  36 UserImageScreenHandler::UserImageScreenHandler()
  37     : BaseScreenHandler(kJsScreenPath),
  38       screen_(NULL),
  39       show_on_init_(false),
  40       is_ready_(false) {
  41   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
  42   media::SoundsManager* manager = media::SoundsManager::Get();
  43   manager->Initialize(SOUND_OBJECT_DELETE,
  44                       bundle.GetRawDataResource(IDR_SOUND_OBJECT_DELETE_WAV));
  45   manager->Initialize(SOUND_CAMERA_SNAP,
  46                       bundle.GetRawDataResource(IDR_SOUND_CAMERA_SNAP_WAV));
  47 }
  48
  49 UserImageScreenHandler::~UserImageScreenHandler() {
  50   if (screen_) {
  51     screen_->OnActorDestroyed(this);
  52   }
  53 }
  54
  55 void UserImageScreenHandler::Initialize() {
  56   if (show_on_init_) {
  57     Show();
  58     show_on_init_ = false;
  59   }
  60 }
  61
  62 void UserImageScreenHandler::SetDelegate(
  63     UserImageScreenActor::Delegate* screen) {
  64   screen_ = screen;
  65 }
  66
  67 void UserImageScreenHandler::Show() {
  68   if (!page_is_ready()) {
  69     show_on_init_ = true;
  70     return;
  71   }
  72   screen_show_time_ = base::Time::Now();
  73   ShowScreen(OobeUI::kScreenUserImagePicker, NULL);
  74
  75   // When shown, query camera presence.
  76   if (!screen_)
  77     return;
  78   if (is_ready_)
  79     screen_->OnScreenReady();
  80 }
  81
  82 void UserImageScreenHandler::Hide() {
  83 }
  84
  85 void UserImageScreenHandler::PrepareToShow() {
  86 }
  87
  88 void UserImageScreenHandler::DeclareLocalizedValues(
  89     LocalizedValuesBuilder* builder) {
  90   builder->Add("userImageScreenTitle", IDS_USER_IMAGE_SCREEN_TITLE);
  91   builder->Add("userImageScreenDescription",
  92                IDS_OPTIONS_CHANGE_PICTURE_DIALOG_TEXT);
  93   builder->Add("takePhoto", IDS_OPTIONS_CHANGE_PICTURE_TAKE_PHOTO);
  94   builder->Add("discardPhoto", IDS_OPTIONS_CHANGE_PICTURE_DISCARD_PHOTO);
  95   builder->Add("flipPhoto", IDS_OPTIONS_CHANGE_PICTURE_FLIP_PHOTO);
  96   builder->Add("profilePhoto", IDS_IMAGE_SCREEN_PROFILE_PHOTO);
  97   builder->Add("profilePhotoLoading",
  98                IDS_IMAGE_SCREEN_PROFILE_LOADING_PHOTO);
  99   builder->Add("okButtonText", IDS_OK);
 100   builder->Add("authorCredit", IDS_OPTIONS_SET_WALLPAPER_AUTHOR_TEXT);
 101   builder->Add("photoFromCamera", IDS_OPTIONS_CHANGE_PICTURE_PHOTO_FROM_CAMERA);
 102   builder->Add("photoFlippedAccessibleText",
 103                IDS_OPTIONS_PHOTO_FLIP_ACCESSIBLE_TEXT);
 104   builder->Add("photoFlippedBackAccessibleText",
 105                IDS_OPTIONS_PHOTO_FLIPBACK_ACCESSIBLE_TEXT);
 106   builder->Add("photoCaptureAccessibleText",
 107                IDS_OPTIONS_PHOTO_CAPTURE_ACCESSIBLE_TEXT);
 108   builder->Add("photoDiscardAccessibleText",
 109                IDS_OPTIONS_PHOTO_DISCARD_ACCESSIBLE_TEXT);
 110   builder->Add("syncingPreferences", IDS_IMAGE_SCREEN_SYNCING_PREFERENCES);
 111 }
 112
 113 void UserImageScreenHandler::RegisterMessages() {
 114   AddCallback("getImages", &UserImageScreenHandler::HandleGetImages);
 115   AddCallback("screenReady", &UserImageScreenHandler::HandleScreenReady);
 116   AddCallback("takePhoto", &UserImageScreenHandler::HandleTakePhoto);
 117   AddCallback("discardPhoto", &UserImageScreenHandler::HandleDiscardPhoto);
 118   AddCallback("photoTaken", &UserImageScreenHandler::HandlePhotoTaken);
 119   AddCallback("selectImage", &UserImageScreenHandler::HandleSelectImage);
 120   AddCallback("onUserImageAccepted",
 121               &UserImageScreenHandler::HandleImageAccepted);
 122   AddCallback("onUserImageScreenShown",
 123               &UserImageScreenHandler::HandleScreenShown);
 124 }
 125
 126 void UserImageScreenHandler::SelectImage(int index) {
 127   if (page_is_ready())
 128     CallJS("setSelectedImage", user_manager::GetDefaultImageUrl(index));
 129 }
 130
 131 void UserImageScreenHandler::SendProfileImage(const std::string& data_url) {
 132   if (page_is_ready())
 133     CallJS("setProfileImage", data_url);
 134 }
 135
 136 void UserImageScreenHandler::OnProfileImageAbsent() {
 137   if (page_is_ready()) {
 138     scoped_ptr<base::Value> null_value(base::Value::CreateNullValue());
 139     CallJS("setProfileImage", *null_value);
 140   }
 141 }
 142
 143 // TODO(antrim) : It looks more like parameters for "Init" rather than callback.
 144 void UserImageScreenHandler::HandleGetImages() {
 145   base::ListValue image_urls;
 146   for (int i = user_manager::kFirstDefaultImageIndex;
 147        i < user_manager::kDefaultImagesCount;
 148        ++i) {
 149     scoped_ptr<base::DictionaryValue> image_data(new base::DictionaryValue);
 150     image_data->SetString("url", user_manager::GetDefaultImageUrl(i));
 151     image_data->SetString(
 152         "author",
 153         l10n_util::GetStringUTF16(user_manager::kDefaultImageAuthorIDs[i]));
 154     image_data->SetString(
 155         "website",
 156         l10n_util::GetStringUTF16(user_manager::kDefaultImageWebsiteIDs[i]));
 157     image_data->SetString("title", user_manager::GetDefaultImageDescription(i));
 158     image_urls.Append(image_data.release());
 159   }
 160   CallJS("setDefaultImages", image_urls);
 161   if (!screen_)
 162     return;
 163   if (screen_->selected_image() != user_manager::User::USER_IMAGE_INVALID)
 164     SelectImage(screen_->selected_image());
 165
 166   if (screen_->profile_picture_data_url() != url::kAboutBlankURL)
 167     SendProfileImage(screen_->profile_picture_data_url());
 168   else if (screen_->profile_picture_absent())
 169     OnProfileImageAbsent();
 170 }
 171
 172 void UserImageScreenHandler::HandleScreenReady() {
 173   is_ready_ = true;
 174   if (screen_)
 175     screen_->OnScreenReady();
 176 }
 177
 178 void UserImageScreenHandler::HandlePhotoTaken(const std::string& image_url) {
 179   std::string mime_type, charset, raw_data;
 180   if (!net::DataURL::Parse(GURL(image_url), &mime_type, &charset, &raw_data))
 181     NOTREACHED();
 182   DCHECK_EQ("image/png", mime_type);
 183
 184   if (screen_)
 185     screen_->OnPhotoTaken(raw_data);
 186 }
 187
 188 void UserImageScreenHandler::HandleTakePhoto() {
 189   ash::PlaySystemSoundIfSpokenFeedback(SOUND_CAMERA_SNAP);
 190 }
 191
 192 void UserImageScreenHandler::HandleDiscardPhoto() {
 193   ash::PlaySystemSoundIfSpokenFeedback(SOUND_OBJECT_DELETE);
 194 }
 195
 196 void UserImageScreenHandler::HandleSelectImage(const std::string& image_url,
 197                                                const std::string& image_type,
 198                                                bool is_user_selection) {
 199   if (screen_)
 200     screen_->OnImageSelected(image_type, image_url, is_user_selection);
 201 }
 202
 203 void UserImageScreenHandler::HandleImageAccepted() {
 204   if (screen_)
 205     screen_->OnImageAccepted();
 206 }
 207
 208 void UserImageScreenHandler::HandleScreenShown() {
 209   DCHECK(!screen_show_time_.is_null());
 210
 211   base::TimeDelta delta = base::Time::Now() - screen_show_time_;
 212   VLOG(1) << "Screen load time: " << delta.InSecondsF();
 213   UMA_HISTOGRAM_TIMES("UserImage.ScreenIsShownTime", delta);
 214 }
 215
 216 void UserImageScreenHandler::SetCameraPresent(bool present) {
 217   CallJS("setCameraPresent", present);
 218 }
 219
 220 void UserImageScreenHandler::HideCurtain() {
 221   CallJS("hideCurtain");
 222 }
 223
 224 }  // namespace chromeos