src/chrome/browser/chromeos/display/display_preferences.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/chromeos/display/display_preferences.h"
   6
   7 #include "ash/display/display_layout_store.h"
   8 #include "ash/display/display_manager.h"
   9 #include "ash/display/display_pref_util.h"
  10 #include "ash/shell.h"
  11 #include "base/prefs/pref_registry_simple.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/prefs/scoped_user_pref_update.h"
  14 #include "base/strings/string16.h"
  15 #include "base/strings/string_number_conversions.h"
  16 #include "base/strings/string_split.h"
  17 #include "base/strings/string_util.h"
  18 #include "base/values.h"
  19 #include "chrome/browser/browser_process.h"
  20 #include "chrome/common/pref_names.h"
  21 #include "components/user_manager/user_manager.h"
  22 #include "third_party/cros_system_api/dbus/service_constants.h"
  23 #include "ui/gfx/display.h"
  24 #include "ui/gfx/insets.h"
  25 #include "ui/gfx/screen.h"
  26 #include "url/url_canon.h"
  27 #include "url/url_util.h"
  28
  29 namespace chromeos {
  30 namespace {
  31
  32 const char kInsetsTopKey[] = "insets_top";
  33 const char kInsetsLeftKey[] = "insets_left";
  34 const char kInsetsBottomKey[] = "insets_bottom";
  35 const char kInsetsRightKey[] = "insets_right";
  36
  37 // This kind of boilerplates should be done by base::JSONValueConverter but it
  38 // doesn't support classes like gfx::Insets for now.
  39 // TODO(mukai): fix base::JSONValueConverter and use it here.
  40 bool ValueToInsets(const base::DictionaryValue& value, gfx::Insets* insets) {
  41   DCHECK(insets);
  42   int top = 0;
  43   int left = 0;
  44   int bottom = 0;
  45   int right = 0;
  46   if (value.GetInteger(kInsetsTopKey, &top) &&
  47       value.GetInteger(kInsetsLeftKey, &left) &&
  48       value.GetInteger(kInsetsBottomKey, &bottom) &&
  49       value.GetInteger(kInsetsRightKey, &right)) {
  50     insets->Set(top, left, bottom, right);
  51     return true;
  52   }
  53   return false;
  54 }
  55
  56 void InsetsToValue(const gfx::Insets& insets, base::DictionaryValue* value) {
  57   DCHECK(value);
  58   value->SetInteger(kInsetsTopKey, insets.top());
  59   value->SetInteger(kInsetsLeftKey, insets.left());
  60   value->SetInteger(kInsetsBottomKey, insets.bottom());
  61   value->SetInteger(kInsetsRightKey, insets.right());
  62 }
  63
  64 std::string ColorProfileToString(ui::ColorCalibrationProfile profile) {
  65   switch (profile) {
  66     case ui::COLOR_PROFILE_STANDARD:
  67       return "standard";
  68     case ui::COLOR_PROFILE_DYNAMIC:
  69       return "dynamic";
  70     case ui::COLOR_PROFILE_MOVIE:
  71       return "movie";
  72     case ui::COLOR_PROFILE_READING:
  73       return "reading";
  74     case ui::NUM_COLOR_PROFILES:
  75       break;
  76   }
  77   NOTREACHED();
  78   return "";
  79 }
  80
  81 ui::ColorCalibrationProfile StringToColorProfile(std::string value) {
  82   if (value == "standard")
  83     return ui::COLOR_PROFILE_STANDARD;
  84   else if (value == "dynamic")
  85     return ui::COLOR_PROFILE_DYNAMIC;
  86   else if (value == "movie")
  87     return ui::COLOR_PROFILE_MOVIE;
  88   else if (value == "reading")
  89     return ui::COLOR_PROFILE_READING;
  90   NOTREACHED();
  91   return ui::COLOR_PROFILE_STANDARD;
  92 }
  93
  94 ash::DisplayManager* GetDisplayManager() {
  95   return ash::Shell::GetInstance()->display_manager();
  96 }
  97
  98 // Returns true id the current user can write display preferences to
  99 // Local State.
 100 bool UserCanSaveDisplayPreference() {
 101   user_manager::UserManager* user_manager = user_manager::UserManager::Get();
 102   return user_manager->IsUserLoggedIn() &&
 103       (user_manager->IsLoggedInAsRegularUser() ||
 104        user_manager->IsLoggedInAsSupervisedUser() ||
 105        user_manager->IsLoggedInAsKioskApp());
 106 }
 107
 108 void LoadDisplayLayouts() {
 109   PrefService* local_state = g_browser_process->local_state();
 110   ash::DisplayLayoutStore* layout_store = GetDisplayManager()->layout_store();
 111
 112   const base::DictionaryValue* layouts = local_state->GetDictionary(
 113       prefs::kSecondaryDisplays);
 114   for (base::DictionaryValue::Iterator it(*layouts);
 115        !it.IsAtEnd(); it.Advance()) {
 116     ash::DisplayLayout layout;
 117     if (!ash::DisplayLayout::ConvertFromValue(it.value(), &layout)) {
 118       LOG(WARNING) << "Invalid preference value for " << it.key();
 119       continue;
 120     }
 121
 122     if (it.key().find(",") != std::string::npos) {
 123       std::vector<std::string> ids;
 124       base::SplitString(it.key(), ',', &ids);
 125       int64 id1 = gfx::Display::kInvalidDisplayID;
 126       int64 id2 = gfx::Display::kInvalidDisplayID;
 127       if (!base::StringToInt64(ids[0], &id1) ||
 128           !base::StringToInt64(ids[1], &id2) ||
 129           id1 == gfx::Display::kInvalidDisplayID ||
 130           id2 == gfx::Display::kInvalidDisplayID) {
 131         continue;
 132       }
 133       layout_store->RegisterLayoutForDisplayIdPair(id1, id2, layout);
 134     }
 135   }
 136 }
 137
 138 void LoadDisplayProperties() {
 139   PrefService* local_state = g_browser_process->local_state();
 140   const base::DictionaryValue* properties = local_state->GetDictionary(
 141       prefs::kDisplayProperties);
 142   for (base::DictionaryValue::Iterator it(*properties);
 143        !it.IsAtEnd(); it.Advance()) {
 144     const base::DictionaryValue* dict_value = NULL;
 145     if (!it.value().GetAsDictionary(&dict_value) || dict_value == NULL)
 146       continue;
 147     int64 id = gfx::Display::kInvalidDisplayID;
 148     if (!base::StringToInt64(it.key(), &id) ||
 149         id == gfx::Display::kInvalidDisplayID) {
 150       continue;
 151     }
 152     gfx::Display::Rotation rotation = gfx::Display::ROTATE_0;
 153     float ui_scale = 1.0f;
 154     const gfx::Insets* insets_to_set = NULL;
 155
 156     int rotation_value = 0;
 157     if (dict_value->GetInteger("rotation", &rotation_value)) {
 158       rotation = static_cast<gfx::Display::Rotation>(rotation_value);
 159     }
 160     int ui_scale_value = 0;
 161     if (dict_value->GetInteger("ui-scale", &ui_scale_value))
 162       ui_scale = static_cast<float>(ui_scale_value) / 1000.0f;
 163
 164     int width = 0, height = 0;
 165     dict_value->GetInteger("width", &width);
 166     dict_value->GetInteger("height", &height);
 167     gfx::Size resolution_in_pixels(width, height);
 168
 169     float device_scale_factor = 1.0;
 170     int dsf_value = 0;
 171     if (dict_value->GetInteger("device-scale-factor", &dsf_value))
 172       device_scale_factor = static_cast<float>(dsf_value) / 1000.0f;
 173
 174     gfx::Insets insets;
 175     if (ValueToInsets(*dict_value, &insets))
 176       insets_to_set = &insets;
 177
 178     ui::ColorCalibrationProfile color_profile = ui::COLOR_PROFILE_STANDARD;
 179     std::string color_profile_name;
 180     if (dict_value->GetString("color_profile_name", &color_profile_name))
 181       color_profile = StringToColorProfile(color_profile_name);
 182     GetDisplayManager()->RegisterDisplayProperty(id,
 183                                                  rotation,
 184                                                  ui_scale,
 185                                                  insets_to_set,
 186                                                  resolution_in_pixels,
 187                                                  device_scale_factor,
 188                                                  color_profile);
 189   }
 190 }
 191
 192 void StoreDisplayLayoutPref(const ash::DisplayIdPair& pair,
 193                             const ash::DisplayLayout& display_layout) {
 194   std::string name =
 195       base::Int64ToString(pair.first) + "," + base::Int64ToString(pair.second);
 196
 197   PrefService* local_state = g_browser_process->local_state();
 198   DictionaryPrefUpdate update(local_state, prefs::kSecondaryDisplays);
 199   base::DictionaryValue* pref_data = update.Get();
 200   scoped_ptr<base::Value> layout_value(new base::DictionaryValue());
 201   if (pref_data->HasKey(name)) {
 202     base::Value* value = NULL;
 203     if (pref_data->Get(name, &value) && value != NULL)
 204       layout_value.reset(value->DeepCopy());
 205   }
 206   if (ash::DisplayLayout::ConvertToValue(display_layout, layout_value.get()))
 207     pref_data->Set(name, layout_value.release());
 208 }
 209
 210 void StoreCurrentDisplayLayoutPrefs() {
 211   if (!UserCanSaveDisplayPreference() ||
 212       GetDisplayManager()->num_connected_displays() < 2) {
 213     return;
 214   }
 215
 216   ash::DisplayIdPair pair = GetDisplayManager()->GetCurrentDisplayIdPair();
 217   ash::DisplayLayout display_layout =
 218       GetDisplayManager()->layout_store()->GetRegisteredDisplayLayout(pair);
 219   StoreDisplayLayoutPref(pair, display_layout);
 220 }
 221
 222 void StoreCurrentDisplayProperties() {
 223   ash::DisplayManager* display_manager = GetDisplayManager();
 224   PrefService* local_state = g_browser_process->local_state();
 225
 226   DictionaryPrefUpdate update(local_state, prefs::kDisplayProperties);
 227   base::DictionaryValue* pref_data = update.Get();
 228
 229   size_t num = display_manager->GetNumDisplays();
 230   for (size_t i = 0; i < num; ++i) {
 231     const gfx::Display& display = display_manager->GetDisplayAt(i);
 232     int64 id = display.id();
 233     ash::DisplayInfo info = display_manager->GetDisplayInfo(id);
 234
 235     scoped_ptr<base::DictionaryValue> property_value(
 236         new base::DictionaryValue());
 237     property_value->SetInteger("rotation", static_cast<int>(info.rotation()));
 238     property_value->SetInteger(
 239         "ui-scale",
 240         static_cast<int>(info.configured_ui_scale() * 1000));
 241     ash::DisplayMode mode;
 242     if (!display.IsInternal() &&
 243         display_manager->GetSelectedModeForDisplayId(id, &mode) &&
 244         !mode.native) {
 245       property_value->SetInteger("width", mode.size.width());
 246       property_value->SetInteger("height", mode.size.height());
 247       property_value->SetInteger(
 248           "device-scale-factor",
 249           static_cast<int>(mode.device_scale_factor * 1000));
 250     }
 251     if (!info.overscan_insets_in_dip().empty())
 252       InsetsToValue(info.overscan_insets_in_dip(), property_value.get());
 253     if (info.color_profile() != ui::COLOR_PROFILE_STANDARD) {
 254       property_value->SetString(
 255           "color_profile_name", ColorProfileToString(info.color_profile()));
 256     }
 257     pref_data->Set(base::Int64ToString(id), property_value.release());
 258   }
 259 }
 260
 261 typedef std::map<chromeos::DisplayPowerState, std::string>
 262     DisplayPowerStateToStringMap;
 263
 264 const DisplayPowerStateToStringMap* GetDisplayPowerStateToStringMap() {
 265   // Don't save or retore ALL_OFF state. crbug.com/318456.
 266   static const DisplayPowerStateToStringMap* map = ash::CreateToStringMap(
 267       chromeos::DISPLAY_POWER_ALL_ON, "all_on",
 268       chromeos::DISPLAY_POWER_INTERNAL_OFF_EXTERNAL_ON,
 269       "internal_off_external_on",
 270       chromeos::DISPLAY_POWER_INTERNAL_ON_EXTERNAL_OFF,
 271       "internal_on_external_off");
 272   return map;
 273 }
 274
 275 bool GetDisplayPowerStateFromString(const base::StringPiece& state,
 276                                     chromeos::DisplayPowerState* field) {
 277   if (ash::ReverseFind(GetDisplayPowerStateToStringMap(), state, field))
 278     return true;
 279   LOG(ERROR) << "Invalid display power state value:" << state;
 280   return false;
 281 }
 282
 283 void StoreDisplayPowerState(DisplayPowerState power_state) {
 284   const DisplayPowerStateToStringMap* map = GetDisplayPowerStateToStringMap();
 285   DisplayPowerStateToStringMap::const_iterator iter = map->find(power_state);
 286   if (iter != map->end()) {
 287     PrefService* local_state = g_browser_process->local_state();
 288     local_state->SetString(prefs::kDisplayPowerState, iter->second);
 289   }
 290 }
 291
 292 void StoreCurrentDisplayPowerState() {
 293   StoreDisplayPowerState(
 294       ash::Shell::GetInstance()->display_configurator()->power_state());
 295 }
 296
 297 }  // namespace
 298
 299 void RegisterDisplayLocalStatePrefs(PrefRegistrySimple* registry) {
 300   // Per-display preference.
 301   registry->RegisterDictionaryPref(prefs::kSecondaryDisplays);
 302   registry->RegisterDictionaryPref(prefs::kDisplayProperties);
 303   DisplayPowerStateToStringMap::const_iterator iter =
 304       GetDisplayPowerStateToStringMap()->find(chromeos::DISPLAY_POWER_ALL_ON);
 305   registry->RegisterStringPref(prefs::kDisplayPowerState, iter->second);
 306 }
 307
 308 void StoreDisplayPrefs() {
 309   // Stores the power state regardless of the login status, because the power
 310   // state respects to the current status (close/open) of the lid which can be
 311   // changed in any situation. See crbug.com/285360
 312   StoreCurrentDisplayPowerState();
 313
 314   // Do not store prefs when the confirmation dialog is shown.
 315   if (!UserCanSaveDisplayPreference() ||
 316       !ash::Shell::GetInstance()->ShouldSaveDisplaySettings()) {
 317     return;
 318   }
 319
 320   StoreCurrentDisplayLayoutPrefs();
 321   StoreCurrentDisplayProperties();
 322 }
 323
 324 void SetCurrentDisplayLayout(const ash::DisplayLayout& layout) {
 325   GetDisplayManager()->SetLayoutForCurrentDisplays(layout);
 326 }
 327
 328 void LoadDisplayPreferences(bool first_run_after_boot) {
 329   LoadDisplayLayouts();
 330   LoadDisplayProperties();
 331   if (!first_run_after_boot) {
 332     PrefService* local_state = g_browser_process->local_state();
 333     // Restore DisplayPowerState:
 334     std::string value = local_state->GetString(prefs::kDisplayPowerState);
 335     chromeos::DisplayPowerState power_state;
 336     if (GetDisplayPowerStateFromString(value, &power_state)) {
 337       ash::Shell::GetInstance()->display_configurator()->SetInitialDisplayPower(
 338           power_state);
 339     }
 340   }
 341 }
 342
 343 // Stores the display layout for given display pairs.
 344 void StoreDisplayLayoutPrefForTest(int64 id1,
 345                                    int64 id2,
 346                                    const ash::DisplayLayout& layout) {
 347   StoreDisplayLayoutPref(std::make_pair(id1, id2), layout);
 348 }
 349
 350 // Stores the given |power_state|.
 351 void StoreDisplayPowerStateForTest(DisplayPowerState power_state) {
 352   StoreDisplayPowerState(power_state);
 353 }
 354
 355 }  // namespace chromeos