chrome/browser/ui/browser_command_controller.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/browser_command_controller.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/prefs/pref_service.h"
   9 #include "chrome/app/chrome_command_ids.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/chrome_notification_types.h"
  12 #include "chrome/browser/defaults.h"
  13 #include "chrome/browser/extensions/extension_service.h"
  14 #include "chrome/browser/lifetime/application_lifetime.h"
  15 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  16 #include "chrome/browser/profiles/avatar_menu.h"
  17 #include "chrome/browser/profiles/profile.h"
  18 #include "chrome/browser/profiles/profile_manager.h"
  19 #include "chrome/browser/sessions/tab_restore_service.h"
  20 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  21 #include "chrome/browser/shell_integration.h"
  22 #include "chrome/browser/signin/signin_promo.h"
  23 #include "chrome/browser/sync/profile_sync_service.h"
  24 #include "chrome/browser/sync/profile_sync_service_factory.h"
  25 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
  26 #include "chrome/browser/ui/browser.h"
  27 #include "chrome/browser/ui/browser_commands.h"
  28 #include "chrome/browser/ui/browser_window.h"
  29 #include "chrome/browser/ui/chrome_pages.h"
  30 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  31 #include "chrome/browser/ui/tabs/tab_strip_model_utils.h"
  32 #include "chrome/browser/ui/webui/inspect_ui.h"
  33 #include "chrome/common/chrome_switches.h"
  34 #include "chrome/common/content_restriction.h"
  35 #include "chrome/common/pref_names.h"
  36 #include "chrome/common/profiling.h"
  37 #include "content/public/browser/native_web_keyboard_event.h"
  38 #include "content/public/browser/navigation_controller.h"
  39 #include "content/public/browser/navigation_entry.h"
  40 #include "content/public/browser/user_metrics.h"
  41 #include "content/public/browser/web_contents.h"
  42 #include "content/public/browser/web_contents_observer.h"
  43 #include "content/public/common/url_constants.h"
  44 #include "ui/events/keycodes/keyboard_codes.h"
  45
  46 #if defined(OS_MACOSX)
  47 #include "chrome/browser/ui/browser_commands_mac.h"
  48 #endif
  49
  50 #if defined(OS_WIN)
  51 #include "base/win/metro.h"
  52 #include "base/win/windows_version.h"
  53 #include "chrome/browser/ui/apps/apps_metro_handler_win.h"
  54 #include "content/public/browser/gpu_data_manager.h"
  55 #endif
  56
  57 #if defined(USE_ASH)
  58 #include "ash/accelerators/accelerator_commands.h"
  59 #include "chrome/browser/ui/ash/ash_util.h"
  60 #endif
  61
  62 #if defined(OS_CHROMEOS)
  63 #include "ash/multi_profile_uma.h"
  64 #include "ash/session/session_state_delegate.h"
  65 #include "ash/shell.h"
  66 #include "chrome/browser/ui/ash/multi_user/multi_user_context_menu.h"
  67 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
  68 #include "chrome/browser/ui/browser_commands_chromeos.h"
  69 #endif
  70
  71 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  72 #include "ui/events/linux/text_edit_key_bindings_delegate_auralinux.h"
  73 #endif
  74
  75 using content::NavigationEntry;
  76 using content::NavigationController;
  77 using content::WebContents;
  78
  79 namespace {
  80
  81 enum WindowState {
  82   // Not in fullscreen mode.
  83   WINDOW_STATE_NOT_FULLSCREEN,
  84
  85   // Fullscreen mode, occupying the whole screen.
  86   WINDOW_STATE_FULLSCREEN,
  87
  88   // Fullscreen mode for metro snap, occupying the full height and 20% of
  89   // the screen width.
  90   WINDOW_STATE_METRO_SNAP,
  91 };
  92
  93 // Returns |true| if entry has an internal chrome:// URL, |false| otherwise.
  94 bool HasInternalURL(const NavigationEntry* entry) {
  95   if (!entry)
  96     return false;
  97
  98   // Check the |virtual_url()| first. This catches regular chrome:// URLs
  99   // including URLs that were rewritten (such as chrome://bookmarks).
 100   if (entry->GetVirtualURL().SchemeIs(content::kChromeUIScheme))
 101     return true;
 102
 103   // If the |virtual_url()| isn't a chrome:// URL, check if it's actually
 104   // view-source: of a chrome:// URL.
 105   if (entry->GetVirtualURL().SchemeIs(content::kViewSourceScheme))
 106     return entry->GetURL().SchemeIs(content::kChromeUIScheme);
 107
 108   return false;
 109 }
 110
 111 #if defined(OS_WIN)
 112 // Windows 8 specific helper class to manage DefaultBrowserWorker. It does the
 113 // following asynchronous actions in order:
 114 // 1- Check that chrome is the default browser
 115 // 2- If we are the default, restart chrome in metro and exit
 116 // 3- If not the default browser show the 'select default browser' system dialog
 117 // 4- When dialog dismisses check again who got made the default
 118 // 5- If we are the default then restart chrome in metro and exit
 119 // 6- If we are not the default exit.
 120 //
 121 // Note: this class deletes itself.
 122 class SwitchToMetroUIHandler
 123     : public ShellIntegration::DefaultWebClientObserver {
 124  public:
 125   SwitchToMetroUIHandler()
 126       : default_browser_worker_(
 127             new ShellIntegration::DefaultBrowserWorker(this)),
 128         first_check_(true) {
 129     default_browser_worker_->StartCheckIsDefault();
 130   }
 131
 132   virtual ~SwitchToMetroUIHandler() {
 133     default_browser_worker_->ObserverDestroyed();
 134   }
 135
 136  private:
 137   virtual void SetDefaultWebClientUIState(
 138       ShellIntegration::DefaultWebClientUIState state) OVERRIDE {
 139     switch (state) {
 140       case ShellIntegration::STATE_PROCESSING:
 141         return;
 142       case ShellIntegration::STATE_UNKNOWN :
 143         break;
 144       case ShellIntegration::STATE_IS_DEFAULT:
 145         chrome::AttemptRestartToMetroMode();
 146         break;
 147       case ShellIntegration::STATE_NOT_DEFAULT:
 148         if (first_check_) {
 149           default_browser_worker_->StartSetAsDefault();
 150           return;
 151         }
 152         break;
 153       default:
 154         NOTREACHED();
 155     }
 156     delete this;
 157   }
 158
 159   virtual void OnSetAsDefaultConcluded(bool success)  OVERRIDE {
 160     if (!success) {
 161       delete this;
 162       return;
 163     }
 164     first_check_ = false;
 165     default_browser_worker_->StartCheckIsDefault();
 166   }
 167
 168   virtual bool IsInteractiveSetDefaultPermitted() OVERRIDE {
 169     return true;
 170   }
 171
 172   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
 173   bool first_check_;
 174
 175   DISALLOW_COPY_AND_ASSIGN(SwitchToMetroUIHandler);
 176 };
 177 #endif  // defined(OS_WIN)
 178
 179 }  // namespace
 180
 181 namespace chrome {
 182
 183 ///////////////////////////////////////////////////////////////////////////////
 184 // BrowserCommandController, public:
 185
 186 BrowserCommandController::BrowserCommandController(
 187     Browser* browser,
 188     ProfileManager* profile_manager)
 189     : browser_(browser),
 190       profile_manager_(profile_manager),
 191       command_updater_(this),
 192       block_command_execution_(false),
 193       last_blocked_command_id_(-1),
 194       last_blocked_command_disposition_(CURRENT_TAB) {
 195   if (profile_manager_)
 196     profile_manager_->GetProfileInfoCache().AddObserver(this);
 197   browser_->tab_strip_model()->AddObserver(this);
 198   PrefService* local_state = g_browser_process->local_state();
 199   if (local_state) {
 200     local_pref_registrar_.Init(local_state);
 201     local_pref_registrar_.Add(
 202         prefs::kAllowFileSelectionDialogs,
 203         base::Bind(
 204             &BrowserCommandController::UpdateCommandsForFileSelectionDialogs,
 205             base::Unretained(this)));
 206   }
 207
 208   profile_pref_registrar_.Init(profile()->GetPrefs());
 209   profile_pref_registrar_.Add(
 210       prefs::kDevToolsDisabled,
 211       base::Bind(&BrowserCommandController::UpdateCommandsForDevTools,
 212                  base::Unretained(this)));
 213   profile_pref_registrar_.Add(
 214       prefs::kEditBookmarksEnabled,
 215       base::Bind(&BrowserCommandController::UpdateCommandsForBookmarkEditing,
 216                  base::Unretained(this)));
 217   profile_pref_registrar_.Add(
 218       prefs::kShowBookmarkBar,
 219       base::Bind(&BrowserCommandController::UpdateCommandsForBookmarkBar,
 220                  base::Unretained(this)));
 221   profile_pref_registrar_.Add(
 222       prefs::kIncognitoModeAvailability,
 223       base::Bind(
 224           &BrowserCommandController::UpdateCommandsForIncognitoAvailability,
 225           base::Unretained(this)));
 226   profile_pref_registrar_.Add(
 227       prefs::kPrintingEnabled,
 228       base::Bind(&BrowserCommandController::UpdatePrintingState,
 229                  base::Unretained(this)));
 230 #if !defined(OS_MACOSX)
 231   profile_pref_registrar_.Add(
 232       prefs::kFullscreenAllowed,
 233       base::Bind(&BrowserCommandController::UpdateCommandsForFullscreenMode,
 234                  base::Unretained(this)));
 235 #endif
 236   pref_signin_allowed_.Init(
 237       prefs::kSigninAllowed,
 238       profile()->GetOriginalProfile()->GetPrefs(),
 239       base::Bind(&BrowserCommandController::OnSigninAllowedPrefChange,
 240                  base::Unretained(this)));
 241
 242   InitCommandState();
 243
 244   TabRestoreService* tab_restore_service =
 245       TabRestoreServiceFactory::GetForProfile(profile());
 246   if (tab_restore_service) {
 247     tab_restore_service->AddObserver(this);
 248     TabRestoreServiceChanged(tab_restore_service);
 249   }
 250 }
 251
 252 BrowserCommandController::~BrowserCommandController() {
 253   // TabRestoreService may have been shutdown by the time we get here. Don't
 254   // trigger creating it.
 255   TabRestoreService* tab_restore_service =
 256       TabRestoreServiceFactory::GetForProfileIfExisting(profile());
 257   if (tab_restore_service)
 258     tab_restore_service->RemoveObserver(this);
 259   profile_pref_registrar_.RemoveAll();
 260   local_pref_registrar_.RemoveAll();
 261   browser_->tab_strip_model()->RemoveObserver(this);
 262   if (profile_manager_)
 263     profile_manager_->GetProfileInfoCache().RemoveObserver(this);
 264 }
 265
 266 bool BrowserCommandController::IsReservedCommandOrKey(
 267     int command_id,
 268     const content::NativeWebKeyboardEvent& event) {
 269   // In Apps mode, no keys are reserved.
 270   if (browser_->is_app())
 271     return false;
 272
 273 #if defined(OS_CHROMEOS)
 274   // On Chrome OS, the top row of keys are mapped to browser actions like
 275   // back/forward or refresh. We don't want web pages to be able to change the
 276   // behavior of these keys.  Ash handles F4 and up; this leaves us needing to
 277   // reserve browser back/forward and refresh here.
 278   ui::KeyboardCode key_code =
 279     static_cast<ui::KeyboardCode>(event.windowsKeyCode);
 280   if ((key_code == ui::VKEY_BROWSER_BACK && command_id == IDC_BACK) ||
 281       (key_code == ui::VKEY_BROWSER_FORWARD && command_id == IDC_FORWARD) ||
 282       (key_code == ui::VKEY_BROWSER_REFRESH && command_id == IDC_RELOAD)) {
 283     return true;
 284   }
 285 #endif
 286
 287   if (window()->IsFullscreen() && command_id == IDC_FULLSCREEN)
 288     return true;
 289
 290 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 291   // If this key was registered by the user as a content editing hotkey, then
 292   // it is not reserved.
 293   ui::TextEditKeyBindingsDelegateAuraLinux* delegate =
 294       ui::GetTextEditKeyBindingsDelegate();
 295   if (delegate && event.os_event && delegate->MatchEvent(*event.os_event, NULL))
 296     return false;
 297 #endif
 298
 299   return command_id == IDC_CLOSE_TAB ||
 300          command_id == IDC_CLOSE_WINDOW ||
 301          command_id == IDC_NEW_INCOGNITO_WINDOW ||
 302          command_id == IDC_NEW_TAB ||
 303          command_id == IDC_NEW_WINDOW ||
 304          command_id == IDC_RESTORE_TAB ||
 305          command_id == IDC_SELECT_NEXT_TAB ||
 306          command_id == IDC_SELECT_PREVIOUS_TAB ||
 307          command_id == IDC_EXIT;
 308 }
 309
 310 void BrowserCommandController::SetBlockCommandExecution(bool block) {
 311   block_command_execution_ = block;
 312   if (block) {
 313     last_blocked_command_id_ = -1;
 314     last_blocked_command_disposition_ = CURRENT_TAB;
 315   }
 316 }
 317
 318 int BrowserCommandController::GetLastBlockedCommand(
 319     WindowOpenDisposition* disposition) {
 320   if (disposition)
 321     *disposition = last_blocked_command_disposition_;
 322   return last_blocked_command_id_;
 323 }
 324
 325 void BrowserCommandController::TabStateChanged() {
 326   UpdateCommandsForTabState();
 327 }
 328
 329 void BrowserCommandController::ContentRestrictionsChanged() {
 330   UpdateCommandsForContentRestrictionState();
 331 }
 332
 333 void BrowserCommandController::FullscreenStateChanged() {
 334   UpdateCommandsForFullscreenMode();
 335 }
 336
 337 void BrowserCommandController::PrintingStateChanged() {
 338   UpdatePrintingState();
 339 }
 340
 341 void BrowserCommandController::LoadingStateChanged(bool is_loading,
 342                                                    bool force) {
 343   UpdateReloadStopState(is_loading, force);
 344 }
 345
 346 ////////////////////////////////////////////////////////////////////////////////
 347 // BrowserCommandController, CommandUpdaterDelegate implementation:
 348
 349 void BrowserCommandController::ExecuteCommandWithDisposition(
 350     int id,
 351     WindowOpenDisposition disposition) {
 352   // No commands are enabled if there is not yet any selected tab.
 353   // TODO(pkasting): It seems like we should not need this, because either
 354   // most/all commands should not have been enabled yet anyway or the ones that
 355   // are enabled should be global, or safe themselves against having no selected
 356   // tab.  However, Ben says he tried removing this before and got lots of
 357   // crashes, e.g. from Windows sending WM_COMMANDs at random times during
 358   // window construction.  This probably could use closer examination someday.
 359   if (browser_->tab_strip_model()->active_index() == TabStripModel::kNoTab)
 360     return;
 361
 362   DCHECK(command_updater_.IsCommandEnabled(id)) << "Invalid/disabled command "
 363                                                 << id;
 364
 365   // If command execution is blocked then just record the command and return.
 366   if (block_command_execution_) {
 367     // We actually only allow no more than one blocked command, otherwise some
 368     // commands maybe lost.
 369     DCHECK_EQ(last_blocked_command_id_, -1);
 370     last_blocked_command_id_ = id;
 371     last_blocked_command_disposition_ = disposition;
 372     return;
 373   }
 374
 375   // The order of commands in this switch statement must match the function
 376   // declaration order in browser.h!
 377   switch (id) {
 378     // Navigation commands
 379     case IDC_BACK:
 380       GoBack(browser_, disposition);
 381       break;
 382     case IDC_FORWARD:
 383       GoForward(browser_, disposition);
 384       break;
 385     case IDC_RELOAD:
 386       Reload(browser_, disposition);
 387       break;
 388     case IDC_RELOAD_CLEARING_CACHE:
 389       ClearCache(browser_);
 390       // FALL THROUGH
 391     case IDC_RELOAD_IGNORING_CACHE:
 392       ReloadIgnoringCache(browser_, disposition);
 393       break;
 394     case IDC_HOME:
 395       Home(browser_, disposition);
 396       break;
 397     case IDC_OPEN_CURRENT_URL:
 398       OpenCurrentURL(browser_);
 399       break;
 400     case IDC_STOP:
 401       Stop(browser_);
 402       break;
 403
 404      // Window management commands
 405     case IDC_NEW_WINDOW:
 406       NewWindow(browser_);
 407       break;
 408     case IDC_NEW_INCOGNITO_WINDOW:
 409       NewIncognitoWindow(browser_);
 410       break;
 411     case IDC_CLOSE_WINDOW:
 412       content::RecordAction(base::UserMetricsAction("CloseWindowByKey"));
 413       CloseWindow(browser_);
 414       break;
 415     case IDC_NEW_TAB:
 416       NewTab(browser_);
 417       break;
 418     case IDC_CLOSE_TAB:
 419       content::RecordAction(base::UserMetricsAction("CloseTabByKey"));
 420       CloseTab(browser_);
 421       break;
 422     case IDC_SELECT_NEXT_TAB:
 423       content::RecordAction(base::UserMetricsAction("Accel_SelectNextTab"));
 424       SelectNextTab(browser_);
 425       break;
 426     case IDC_SELECT_PREVIOUS_TAB:
 427       content::RecordAction(
 428           base::UserMetricsAction("Accel_SelectPreviousTab"));
 429       SelectPreviousTab(browser_);
 430       break;
 431     case IDC_MOVE_TAB_NEXT:
 432       MoveTabNext(browser_);
 433       break;
 434     case IDC_MOVE_TAB_PREVIOUS:
 435       MoveTabPrevious(browser_);
 436       break;
 437     case IDC_SELECT_TAB_0:
 438     case IDC_SELECT_TAB_1:
 439     case IDC_SELECT_TAB_2:
 440     case IDC_SELECT_TAB_3:
 441     case IDC_SELECT_TAB_4:
 442     case IDC_SELECT_TAB_5:
 443     case IDC_SELECT_TAB_6:
 444     case IDC_SELECT_TAB_7:
 445       SelectNumberedTab(browser_, id - IDC_SELECT_TAB_0);
 446       break;
 447     case IDC_SELECT_LAST_TAB:
 448       SelectLastTab(browser_);
 449       break;
 450     case IDC_DUPLICATE_TAB:
 451       DuplicateTab(browser_);
 452       break;
 453     case IDC_RESTORE_TAB:
 454       RestoreTab(browser_);
 455       break;
 456     case IDC_SHOW_AS_TAB:
 457       ConvertPopupToTabbedBrowser(browser_);
 458       break;
 459     case IDC_FULLSCREEN:
 460 #if defined(OS_MACOSX)
 461       chrome::ToggleFullscreenWithChromeOrFallback(browser_);
 462 #else
 463       chrome::ToggleFullscreenMode(browser_);
 464 #endif
 465       break;
 466
 467 #if defined(USE_ASH)
 468     case IDC_TOGGLE_ASH_DESKTOP:
 469       chrome::ToggleAshDesktop();
 470       break;
 471     case IDC_MINIMIZE_WINDOW:
 472       content::RecordAction(
 473           base::UserMetricsAction("Accel_Toggle_Minimized_M"));
 474       ash::accelerators::ToggleMinimized();
 475       break;
 476     // If Ash needs many more commands here we should implement a general
 477     // mechanism to pass accelerators back into Ash. http://crbug.com/285308
 478 #endif
 479
 480 #if defined(OS_CHROMEOS)
 481     case IDC_VISIT_DESKTOP_OF_LRU_USER_2:
 482     case IDC_VISIT_DESKTOP_OF_LRU_USER_3:
 483       ExecuteVisitDesktopCommand(id, browser_->window()->GetNativeWindow());
 484       break;
 485 #endif
 486
 487 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 488     case IDC_USE_SYSTEM_TITLE_BAR: {
 489       PrefService* prefs = browser_->profile()->GetPrefs();
 490       prefs->SetBoolean(prefs::kUseCustomChromeFrame,
 491                         !prefs->GetBoolean(prefs::kUseCustomChromeFrame));
 492       break;
 493     }
 494 #endif
 495
 496 #if defined(OS_WIN)
 497     // Windows 8 specific commands.
 498     case IDC_METRO_SNAP_ENABLE:
 499       browser_->SetMetroSnapMode(true);
 500       break;
 501     case IDC_METRO_SNAP_DISABLE:
 502       browser_->SetMetroSnapMode(false);
 503       break;
 504     case IDC_WIN8_DESKTOP_RESTART:
 505       if (!VerifyMetroSwitchForApps(window()->GetNativeWindow(), id))
 506         break;
 507
 508       chrome::AttemptRestartToDesktopMode();
 509       content::RecordAction(base::UserMetricsAction("Win8DesktopRestart"));
 510       break;
 511     case IDC_WIN8_METRO_RESTART:
 512       if (!VerifyMetroSwitchForApps(window()->GetNativeWindow(), id))
 513         break;
 514
 515       // SwitchToMetroUIHandler deletes itself.
 516       new SwitchToMetroUIHandler;
 517       content::RecordAction(base::UserMetricsAction("Win8MetroRestart"));
 518       break;
 519 #endif
 520
 521 #if defined(OS_MACOSX)
 522     case IDC_PRESENTATION_MODE:
 523       chrome::ToggleFullscreenMode(browser_);
 524       break;
 525 #endif
 526     case IDC_EXIT:
 527       Exit();
 528       break;
 529
 530     // Page-related commands
 531     case IDC_SAVE_PAGE:
 532       SavePage(browser_);
 533       break;
 534     case IDC_BOOKMARK_PAGE:
 535       BookmarkCurrentPage(browser_);
 536       break;
 537     case IDC_PIN_TO_START_SCREEN:
 538       TogglePagePinnedToStartScreen(browser_);
 539       break;
 540     case IDC_BOOKMARK_ALL_TABS:
 541       BookmarkAllTabs(browser_);
 542       break;
 543     case IDC_VIEW_SOURCE:
 544       ViewSelectedSource(browser_);
 545       break;
 546     case IDC_EMAIL_PAGE_LOCATION:
 547       EmailPageLocation(browser_);
 548       break;
 549     case IDC_PRINT:
 550       Print(browser_);
 551       break;
 552     case IDC_ADVANCED_PRINT:
 553       content::RecordAction(base::UserMetricsAction("Accel_Advanced_Print"));
 554       AdvancedPrint(browser_);
 555       break;
 556     case IDC_PRINT_TO_DESTINATION:
 557       PrintToDestination(browser_);
 558       break;
 559     case IDC_TRANSLATE_PAGE:
 560       Translate(browser_);
 561       break;
 562     case IDC_MANAGE_PASSWORDS_FOR_PAGE:
 563       ManagePasswordsForPage(browser_);
 564       break;
 565
 566     // Page encoding commands
 567     case IDC_ENCODING_AUTO_DETECT:
 568       browser_->ToggleEncodingAutoDetect();
 569       break;
 570     case IDC_ENCODING_UTF8:
 571     case IDC_ENCODING_UTF16LE:
 572     case IDC_ENCODING_ISO88591:
 573     case IDC_ENCODING_WINDOWS1252:
 574     case IDC_ENCODING_GBK:
 575     case IDC_ENCODING_GB18030:
 576     case IDC_ENCODING_BIG5HKSCS:
 577     case IDC_ENCODING_BIG5:
 578     case IDC_ENCODING_KOREAN:
 579     case IDC_ENCODING_SHIFTJIS:
 580     case IDC_ENCODING_ISO2022JP:
 581     case IDC_ENCODING_EUCJP:
 582     case IDC_ENCODING_THAI:
 583     case IDC_ENCODING_ISO885915:
 584     case IDC_ENCODING_MACINTOSH:
 585     case IDC_ENCODING_ISO88592:
 586     case IDC_ENCODING_WINDOWS1250:
 587     case IDC_ENCODING_ISO88595:
 588     case IDC_ENCODING_WINDOWS1251:
 589     case IDC_ENCODING_KOI8R:
 590     case IDC_ENCODING_KOI8U:
 591     case IDC_ENCODING_ISO88597:
 592     case IDC_ENCODING_WINDOWS1253:
 593     case IDC_ENCODING_ISO88594:
 594     case IDC_ENCODING_ISO885913:
 595     case IDC_ENCODING_WINDOWS1257:
 596     case IDC_ENCODING_ISO88593:
 597     case IDC_ENCODING_ISO885910:
 598     case IDC_ENCODING_ISO885914:
 599     case IDC_ENCODING_ISO885916:
 600     case IDC_ENCODING_WINDOWS1254:
 601     case IDC_ENCODING_ISO88596:
 602     case IDC_ENCODING_WINDOWS1256:
 603     case IDC_ENCODING_ISO88598:
 604     case IDC_ENCODING_ISO88598I:
 605     case IDC_ENCODING_WINDOWS1255:
 606     case IDC_ENCODING_WINDOWS1258:
 607       browser_->OverrideEncoding(id);
 608       break;
 609
 610     // Clipboard commands
 611     case IDC_CUT:
 612       Cut(browser_);
 613       break;
 614     case IDC_COPY:
 615       Copy(browser_);
 616       break;
 617     case IDC_PASTE:
 618       Paste(browser_);
 619       break;
 620
 621     // Find-in-page
 622     case IDC_FIND:
 623       Find(browser_);
 624       break;
 625     case IDC_FIND_NEXT:
 626       FindNext(browser_);
 627       break;
 628     case IDC_FIND_PREVIOUS:
 629       FindPrevious(browser_);
 630       break;
 631
 632     // Zoom
 633     case IDC_ZOOM_PLUS:
 634       Zoom(browser_, content::PAGE_ZOOM_IN);
 635       break;
 636     case IDC_ZOOM_NORMAL:
 637       Zoom(browser_, content::PAGE_ZOOM_RESET);
 638       break;
 639     case IDC_ZOOM_MINUS:
 640       Zoom(browser_, content::PAGE_ZOOM_OUT);
 641       break;
 642
 643     // Focus various bits of UI
 644     case IDC_FOCUS_TOOLBAR:
 645       content::RecordAction(base::UserMetricsAction("Accel_Focus_Toolbar"));
 646       FocusToolbar(browser_);
 647       break;
 648     case IDC_FOCUS_LOCATION:
 649       content::RecordAction(base::UserMetricsAction("Accel_Focus_Location"));
 650       FocusLocationBar(browser_);
 651       break;
 652     case IDC_FOCUS_SEARCH:
 653       content::RecordAction(base::UserMetricsAction("Accel_Focus_Search"));
 654       FocusSearch(browser_);
 655       break;
 656     case IDC_FOCUS_MENU_BAR:
 657       FocusAppMenu(browser_);
 658       break;
 659     case IDC_FOCUS_BOOKMARKS:
 660       content::RecordAction(
 661           base::UserMetricsAction("Accel_Focus_Bookmarks"));
 662       FocusBookmarksToolbar(browser_);
 663       break;
 664     case IDC_FOCUS_INFOBARS:
 665       FocusInfobars(browser_);
 666       break;
 667     case IDC_FOCUS_NEXT_PANE:
 668       FocusNextPane(browser_);
 669       break;
 670     case IDC_FOCUS_PREVIOUS_PANE:
 671       FocusPreviousPane(browser_);
 672       break;
 673
 674     // Show various bits of UI
 675     case IDC_OPEN_FILE:
 676       browser_->OpenFile();
 677       break;
 678     case IDC_CREATE_SHORTCUTS:
 679       CreateApplicationShortcuts(browser_);
 680       break;
 681     case IDC_CREATE_HOSTED_APP:
 682       CreateBookmarkAppFromCurrentWebContents(browser_);
 683       break;
 684     case IDC_DEV_TOOLS:
 685       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Show());
 686       break;
 687     case IDC_DEV_TOOLS_CONSOLE:
 688       ToggleDevToolsWindow(browser_, DevToolsToggleAction::ShowConsole());
 689       break;
 690     case IDC_DEV_TOOLS_DEVICES:
 691       InspectUI::InspectDevices(browser_);
 692       break;
 693     case IDC_DEV_TOOLS_INSPECT:
 694       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Inspect());
 695       break;
 696     case IDC_DEV_TOOLS_TOGGLE:
 697       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Toggle());
 698       break;
 699     case IDC_TASK_MANAGER:
 700       OpenTaskManager(browser_);
 701       break;
 702 #if defined(OS_CHROMEOS)
 703     case IDC_TAKE_SCREENSHOT:
 704       TakeScreenshot();
 705       break;
 706 #endif
 707 #if defined(GOOGLE_CHROME_BUILD)
 708     case IDC_FEEDBACK:
 709       OpenFeedbackDialog(browser_);
 710       break;
 711 #endif
 712     case IDC_SHOW_BOOKMARK_BAR:
 713       ToggleBookmarkBar(browser_);
 714       break;
 715     case IDC_PROFILING_ENABLED:
 716       Profiling::Toggle();
 717       break;
 718
 719     case IDC_SHOW_BOOKMARK_MANAGER:
 720       ShowBookmarkManager(browser_);
 721       break;
 722     case IDC_SHOW_APP_MENU:
 723       content::RecordAction(base::UserMetricsAction("Accel_Show_App_Menu"));
 724       ShowAppMenu(browser_);
 725       break;
 726     case IDC_SHOW_AVATAR_MENU:
 727       ShowAvatarMenu(browser_);
 728       break;
 729     case IDC_SHOW_HISTORY:
 730       ShowHistory(browser_);
 731       break;
 732     case IDC_SHOW_DOWNLOADS:
 733       ShowDownloads(browser_);
 734       break;
 735     case IDC_MANAGE_EXTENSIONS:
 736       ShowExtensions(browser_, std::string());
 737       break;
 738     case IDC_OPTIONS:
 739       ShowSettings(browser_);
 740       break;
 741     case IDC_EDIT_SEARCH_ENGINES:
 742       ShowSearchEngineSettings(browser_);
 743       break;
 744     case IDC_VIEW_PASSWORDS:
 745       ShowPasswordManager(browser_);
 746       break;
 747     case IDC_CLEAR_BROWSING_DATA:
 748       ShowClearBrowsingDataDialog(browser_);
 749       break;
 750     case IDC_IMPORT_SETTINGS:
 751       ShowImportDialog(browser_);
 752       break;
 753     case IDC_TOGGLE_REQUEST_TABLET_SITE:
 754       ToggleRequestTabletSite(browser_);
 755       break;
 756     case IDC_ABOUT:
 757       ShowAboutChrome(browser_);
 758       break;
 759     case IDC_UPGRADE_DIALOG:
 760       OpenUpdateChromeDialog(browser_);
 761       break;
 762     case IDC_VIEW_INCOMPATIBILITIES:
 763       ShowConflicts(browser_);
 764       break;
 765     case IDC_HELP_PAGE_VIA_KEYBOARD:
 766       ShowHelp(browser_, HELP_SOURCE_KEYBOARD);
 767       break;
 768     case IDC_HELP_PAGE_VIA_MENU:
 769       ShowHelp(browser_, HELP_SOURCE_MENU);
 770       break;
 771     case IDC_SHOW_SIGNIN:
 772       ShowBrowserSignin(browser_, signin::SOURCE_MENU);
 773       break;
 774     case IDC_TOGGLE_SPEECH_INPUT:
 775       ToggleSpeechInput(browser_);
 776       break;
 777
 778     default:
 779       LOG(WARNING) << "Received Unimplemented Command: " << id;
 780       break;
 781   }
 782 }
 783
 784 ////////////////////////////////////////////////////////////////////////////////
 785 // BrowserCommandController, ProfileInfoCacheObserver implementation:
 786
 787 void BrowserCommandController::OnProfileAdded(
 788     const base::FilePath& profile_path) {
 789   UpdateCommandsForMultipleProfiles();
 790 }
 791
 792 void BrowserCommandController::OnProfileWasRemoved(
 793     const base::FilePath& profile_path,
 794     const base::string16& profile_name) {
 795   UpdateCommandsForMultipleProfiles();
 796 }
 797
 798 ////////////////////////////////////////////////////////////////////////////////
 799 // BrowserCommandController, SigninPrefObserver implementation:
 800
 801 void BrowserCommandController::OnSigninAllowedPrefChange() {
 802   // For unit tests, we don't have a window.
 803   if (!window())
 804     return;
 805   UpdateShowSyncState(IsShowingMainUI());
 806 }
 807
 808 // BrowserCommandController, TabStripModelObserver implementation:
 809
 810 void BrowserCommandController::TabInsertedAt(WebContents* contents,
 811                                              int index,
 812                                              bool foreground) {
 813   AddInterstitialObservers(contents);
 814 }
 815
 816 void BrowserCommandController::TabDetachedAt(WebContents* contents, int index) {
 817   RemoveInterstitialObservers(contents);
 818 }
 819
 820 void BrowserCommandController::TabReplacedAt(TabStripModel* tab_strip_model,
 821                                              WebContents* old_contents,
 822                                              WebContents* new_contents,
 823                                              int index) {
 824   RemoveInterstitialObservers(old_contents);
 825   AddInterstitialObservers(new_contents);
 826 }
 827
 828 void BrowserCommandController::TabBlockedStateChanged(
 829     content::WebContents* contents,
 830     int index) {
 831   PrintingStateChanged();
 832   FullscreenStateChanged();
 833   UpdateCommandsForFind();
 834 }
 835
 836 ////////////////////////////////////////////////////////////////////////////////
 837 // BrowserCommandController, TabRestoreServiceObserver implementation:
 838
 839 void BrowserCommandController::TabRestoreServiceChanged(
 840     TabRestoreService* service) {
 841   command_updater_.UpdateCommandEnabled(
 842       IDC_RESTORE_TAB,
 843       GetRestoreTabType(browser_) != TabStripModelDelegate::RESTORE_NONE);
 844 }
 845
 846 void BrowserCommandController::TabRestoreServiceDestroyed(
 847     TabRestoreService* service) {
 848   service->RemoveObserver(this);
 849 }
 850
 851 ////////////////////////////////////////////////////////////////////////////////
 852 // BrowserCommandController, private:
 853
 854 class BrowserCommandController::InterstitialObserver
 855     : public content::WebContentsObserver {
 856  public:
 857   InterstitialObserver(BrowserCommandController* controller,
 858                        content::WebContents* web_contents)
 859       : WebContentsObserver(web_contents),
 860         controller_(controller) {
 861   }
 862
 863   using content::WebContentsObserver::web_contents;
 864
 865   virtual void DidAttachInterstitialPage() OVERRIDE {
 866     controller_->UpdateCommandsForTabState();
 867   }
 868
 869   virtual void DidDetachInterstitialPage() OVERRIDE {
 870     controller_->UpdateCommandsForTabState();
 871   }
 872
 873  private:
 874   BrowserCommandController* controller_;
 875
 876   DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
 877 };
 878
 879 bool BrowserCommandController::IsShowingMainUI() {
 880   bool should_hide_ui = window() && window()->ShouldHideUIForFullscreen();
 881   return browser_->is_type_tabbed() && !should_hide_ui;
 882 }
 883
 884 void BrowserCommandController::InitCommandState() {
 885   // All browser commands whose state isn't set automagically some other way
 886   // (like Back & Forward with initial page load) must have their state
 887   // initialized here, otherwise they will be forever disabled.
 888
 889   // Navigation commands
 890   command_updater_.UpdateCommandEnabled(IDC_RELOAD, true);
 891   command_updater_.UpdateCommandEnabled(IDC_RELOAD_IGNORING_CACHE, true);
 892   command_updater_.UpdateCommandEnabled(IDC_RELOAD_CLEARING_CACHE, true);
 893
 894   // Window management commands
 895   command_updater_.UpdateCommandEnabled(IDC_CLOSE_WINDOW, true);
 896   command_updater_.UpdateCommandEnabled(IDC_NEW_TAB, true);
 897   command_updater_.UpdateCommandEnabled(IDC_CLOSE_TAB, true);
 898   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB, true);
 899   command_updater_.UpdateCommandEnabled(IDC_RESTORE_TAB, false);
 900 #if defined(OS_WIN) && defined(USE_ASH)
 901   if (browser_->host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH)
 902     command_updater_.UpdateCommandEnabled(IDC_EXIT, true);
 903 #else
 904   command_updater_.UpdateCommandEnabled(IDC_EXIT, true);
 905 #endif
 906   command_updater_.UpdateCommandEnabled(IDC_DEBUG_FRAME_TOGGLE, true);
 907 #if defined(OS_WIN) && defined(USE_ASH) && !defined(NDEBUG)
 908   if (base::win::GetVersion() < base::win::VERSION_WIN8 &&
 909       chrome::HOST_DESKTOP_TYPE_NATIVE != chrome::HOST_DESKTOP_TYPE_ASH)
 910     command_updater_.UpdateCommandEnabled(IDC_TOGGLE_ASH_DESKTOP, true);
 911 #endif
 912 #if defined(USE_ASH)
 913   command_updater_.UpdateCommandEnabled(IDC_MINIMIZE_WINDOW, true);
 914 #endif
 915 #if defined(OS_CHROMEOS)
 916   command_updater_.UpdateCommandEnabled(IDC_VISIT_DESKTOP_OF_LRU_USER_2, true);
 917   command_updater_.UpdateCommandEnabled(IDC_VISIT_DESKTOP_OF_LRU_USER_3, true);
 918 #endif
 919 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 920   command_updater_.UpdateCommandEnabled(IDC_USE_SYSTEM_TITLE_BAR, true);
 921 #endif
 922
 923   // Page-related commands
 924   command_updater_.UpdateCommandEnabled(IDC_EMAIL_PAGE_LOCATION, true);
 925   command_updater_.UpdateCommandEnabled(IDC_MANAGE_PASSWORDS_FOR_PAGE, true);
 926   command_updater_.UpdateCommandEnabled(IDC_ENCODING_AUTO_DETECT, true);
 927   command_updater_.UpdateCommandEnabled(IDC_ENCODING_UTF8, true);
 928   command_updater_.UpdateCommandEnabled(IDC_ENCODING_UTF16LE, true);
 929   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88591, true);
 930   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1252, true);
 931   command_updater_.UpdateCommandEnabled(IDC_ENCODING_GBK, true);
 932   command_updater_.UpdateCommandEnabled(IDC_ENCODING_GB18030, true);
 933   command_updater_.UpdateCommandEnabled(IDC_ENCODING_BIG5HKSCS, true);
 934   command_updater_.UpdateCommandEnabled(IDC_ENCODING_BIG5, true);
 935   command_updater_.UpdateCommandEnabled(IDC_ENCODING_THAI, true);
 936   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOREAN, true);
 937   command_updater_.UpdateCommandEnabled(IDC_ENCODING_SHIFTJIS, true);
 938   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO2022JP, true);
 939   command_updater_.UpdateCommandEnabled(IDC_ENCODING_EUCJP, true);
 940   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885915, true);
 941   command_updater_.UpdateCommandEnabled(IDC_ENCODING_MACINTOSH, true);
 942   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88592, true);
 943   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1250, true);
 944   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88595, true);
 945   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1251, true);
 946   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOI8R, true);
 947   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOI8U, true);
 948   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88597, true);
 949   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1253, true);
 950   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88594, true);
 951   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885913, true);
 952   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1257, true);
 953   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88593, true);
 954   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885910, true);
 955   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885914, true);
 956   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885916, true);
 957   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1254, true);
 958   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88596, true);
 959   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1256, true);
 960   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88598, true);
 961   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88598I, true);
 962   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1255, true);
 963   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1258, true);
 964
 965   // Zoom
 966   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MENU, true);
 967   command_updater_.UpdateCommandEnabled(IDC_ZOOM_PLUS, true);
 968   command_updater_.UpdateCommandEnabled(IDC_ZOOM_NORMAL, true);
 969   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MINUS, true);
 970
 971   // Show various bits of UI
 972   UpdateOpenFileState(&command_updater_);
 973   command_updater_.UpdateCommandEnabled(IDC_CREATE_SHORTCUTS, false);
 974   UpdateCommandsForDevTools();
 975   command_updater_.UpdateCommandEnabled(IDC_TASK_MANAGER, CanOpenTaskManager());
 976   command_updater_.UpdateCommandEnabled(IDC_SHOW_HISTORY,
 977                                         !profile()->IsGuestSession());
 978   command_updater_.UpdateCommandEnabled(IDC_SHOW_DOWNLOADS, true);
 979   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_KEYBOARD, true);
 980   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_MENU, true);
 981   command_updater_.UpdateCommandEnabled(IDC_BOOKMARKS_MENU,
 982                                         !profile()->IsGuestSession());
 983   command_updater_.UpdateCommandEnabled(IDC_RECENT_TABS_MENU,
 984                                         !profile()->IsGuestSession() &&
 985                                         !profile()->IsOffTheRecord());
 986 #if defined(OS_CHROMEOS)
 987   command_updater_.UpdateCommandEnabled(IDC_TAKE_SCREENSHOT, true);
 988 #endif
 989
 990   UpdateShowSyncState(true);
 991
 992   // Initialize other commands based on the window type.
 993   bool normal_window = browser_->is_type_tabbed();
 994
 995   // Navigation commands
 996   command_updater_.UpdateCommandEnabled(
 997       IDC_HOME,
 998       normal_window || (CommandLine::ForCurrentProcess()->HasSwitch(
 999                             switches::kEnableStreamlinedHostedApps) &&
1000                         browser_->is_app()));
1001
1002   // Window management commands
1003   command_updater_.UpdateCommandEnabled(IDC_SELECT_NEXT_TAB, normal_window);
1004   command_updater_.UpdateCommandEnabled(IDC_SELECT_PREVIOUS_TAB,
1005                                         normal_window);
1006   command_updater_.UpdateCommandEnabled(IDC_MOVE_TAB_NEXT, normal_window);
1007   command_updater_.UpdateCommandEnabled(IDC_MOVE_TAB_PREVIOUS, normal_window);
1008   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_0, normal_window);
1009   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_1, normal_window);
1010   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_2, normal_window);
1011   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_3, normal_window);
1012   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_4, normal_window);
1013   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_5, normal_window);
1014   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_6, normal_window);
1015   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_7, normal_window);
1016   command_updater_.UpdateCommandEnabled(IDC_SELECT_LAST_TAB, normal_window);
1017 #if defined(OS_WIN)
1018 #if !defined(USE_AURA)
1019   const bool metro_mode = base::win::IsMetroProcess();
1020 #else
1021   const bool metro_mode =
1022      browser_->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH ?
1023          true : false;
1024 #endif
1025   command_updater_.UpdateCommandEnabled(IDC_METRO_SNAP_ENABLE, metro_mode);
1026   command_updater_.UpdateCommandEnabled(IDC_METRO_SNAP_DISABLE, metro_mode);
1027   int restart_mode = metro_mode ?
1028       IDC_WIN8_DESKTOP_RESTART : IDC_WIN8_METRO_RESTART;
1029   command_updater_.UpdateCommandEnabled(restart_mode, normal_window);
1030 #endif
1031
1032   // Show various bits of UI
1033   command_updater_.UpdateCommandEnabled(IDC_CLEAR_BROWSING_DATA, normal_window);
1034
1035   // The upgrade entry and the view incompatibility entry should always be
1036   // enabled. Whether they are visible is a separate matter determined on menu
1037   // show.
1038   command_updater_.UpdateCommandEnabled(IDC_UPGRADE_DIALOG, true);
1039   command_updater_.UpdateCommandEnabled(IDC_VIEW_INCOMPATIBILITIES, true);
1040
1041   // Toggle speech input
1042   command_updater_.UpdateCommandEnabled(IDC_TOGGLE_SPEECH_INPUT, true);
1043
1044   // Initialize other commands whose state changes based on fullscreen mode.
1045   UpdateCommandsForFullscreenMode();
1046
1047   UpdateCommandsForContentRestrictionState();
1048
1049   UpdateCommandsForBookmarkEditing();
1050
1051   UpdateCommandsForIncognitoAvailability();
1052 }
1053
1054 // static
1055 void BrowserCommandController::UpdateSharedCommandsForIncognitoAvailability(
1056     CommandUpdater* command_updater,
1057     Profile* profile) {
1058   IncognitoModePrefs::Availability incognito_availability =
1059       IncognitoModePrefs::GetAvailability(profile->GetPrefs());
1060   command_updater->UpdateCommandEnabled(
1061       IDC_NEW_WINDOW,
1062       incognito_availability != IncognitoModePrefs::FORCED);
1063   command_updater->UpdateCommandEnabled(
1064       IDC_NEW_INCOGNITO_WINDOW,
1065       incognito_availability != IncognitoModePrefs::DISABLED);
1066
1067   const bool guest_session = profile->IsGuestSession();
1068   const bool forced_incognito =
1069       incognito_availability == IncognitoModePrefs::FORCED ||
1070       guest_session;  // Guest always runs in Incognito mode.
1071   command_updater->UpdateCommandEnabled(
1072       IDC_SHOW_BOOKMARK_MANAGER,
1073       browser_defaults::bookmarks_enabled && !forced_incognito);
1074   ExtensionService* extension_service = profile->GetExtensionService();
1075   const bool enable_extensions =
1076       extension_service && extension_service->extensions_enabled();
1077
1078   // Bookmark manager and settings page/subpages are forced to open in normal
1079   // mode. For this reason we disable these commands when incognito is forced.
1080   command_updater->UpdateCommandEnabled(IDC_MANAGE_EXTENSIONS,
1081                                         enable_extensions && !forced_incognito);
1082
1083   command_updater->UpdateCommandEnabled(IDC_IMPORT_SETTINGS, !forced_incognito);
1084   command_updater->UpdateCommandEnabled(IDC_OPTIONS,
1085                                         !forced_incognito || guest_session);
1086   command_updater->UpdateCommandEnabled(IDC_SHOW_SIGNIN, !forced_incognito);
1087 }
1088
1089 void BrowserCommandController::UpdateCommandsForIncognitoAvailability() {
1090   UpdateSharedCommandsForIncognitoAvailability(&command_updater_, profile());
1091
1092   if (!IsShowingMainUI()) {
1093     command_updater_.UpdateCommandEnabled(IDC_IMPORT_SETTINGS, false);
1094     command_updater_.UpdateCommandEnabled(IDC_OPTIONS, false);
1095   }
1096 }
1097
1098 void BrowserCommandController::UpdateCommandsForTabState() {
1099   WebContents* current_web_contents =
1100       browser_->tab_strip_model()->GetActiveWebContents();
1101   if (!current_web_contents)  // May be NULL during tab restore.
1102     return;
1103
1104   // Navigation commands
1105   command_updater_.UpdateCommandEnabled(IDC_BACK, CanGoBack(browser_));
1106   command_updater_.UpdateCommandEnabled(IDC_FORWARD, CanGoForward(browser_));
1107   command_updater_.UpdateCommandEnabled(IDC_RELOAD, CanReload(browser_));
1108   command_updater_.UpdateCommandEnabled(IDC_RELOAD_IGNORING_CACHE,
1109                                         CanReload(browser_));
1110   command_updater_.UpdateCommandEnabled(IDC_RELOAD_CLEARING_CACHE,
1111                                         CanReload(browser_));
1112
1113   // Window management commands
1114   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB,
1115       !browser_->is_app() && CanDuplicateTab(browser_));
1116
1117   // Page-related commands
1118   window()->SetStarredState(
1119       BookmarkTabHelper::FromWebContents(current_web_contents)->is_starred());
1120   window()->ZoomChangedForActiveTab(false);
1121   command_updater_.UpdateCommandEnabled(IDC_VIEW_SOURCE,
1122                                         CanViewSource(browser_));
1123   command_updater_.UpdateCommandEnabled(IDC_EMAIL_PAGE_LOCATION,
1124                                         CanEmailPageLocation(browser_));
1125   if (browser_->is_devtools())
1126     command_updater_.UpdateCommandEnabled(IDC_OPEN_FILE, false);
1127
1128   // Changing the encoding is not possible on Chrome-internal webpages.
1129   NavigationController& nc = current_web_contents->GetController();
1130   bool is_chrome_internal = HasInternalURL(nc.GetActiveEntry()) ||
1131       current_web_contents->ShowingInterstitialPage();
1132   command_updater_.UpdateCommandEnabled(IDC_ENCODING_MENU,
1133       !is_chrome_internal && current_web_contents->IsSavable());
1134
1135   // Show various bits of UI
1136   // TODO(pinkerton): Disable app-mode in the model until we implement it
1137   // on the Mac. Be sure to remove both ifdefs. http://crbug.com/13148
1138 #if !defined(OS_MACOSX)
1139   command_updater_.UpdateCommandEnabled(
1140       IDC_CREATE_SHORTCUTS,
1141       CanCreateApplicationShortcuts(browser_));
1142   command_updater_.UpdateCommandEnabled(IDC_CREATE_HOSTED_APP,
1143                                         CanCreateBookmarkApp(browser_));
1144 #endif
1145
1146   command_updater_.UpdateCommandEnabled(
1147       IDC_TOGGLE_REQUEST_TABLET_SITE,
1148       CanRequestTabletSite(current_web_contents));
1149
1150   UpdateCommandsForContentRestrictionState();
1151   UpdateCommandsForBookmarkEditing();
1152   UpdateCommandsForFind();
1153 }
1154
1155 void BrowserCommandController::UpdateCommandsForContentRestrictionState() {
1156   int restrictions = GetContentRestrictions(browser_);
1157
1158   command_updater_.UpdateCommandEnabled(
1159       IDC_COPY, !(restrictions & CONTENT_RESTRICTION_COPY));
1160   command_updater_.UpdateCommandEnabled(
1161       IDC_CUT, !(restrictions & CONTENT_RESTRICTION_CUT));
1162   command_updater_.UpdateCommandEnabled(
1163       IDC_PASTE, !(restrictions & CONTENT_RESTRICTION_PASTE));
1164   UpdateSaveAsState();
1165   UpdatePrintingState();
1166 }
1167
1168 void BrowserCommandController::UpdateCommandsForDevTools() {
1169   bool dev_tools_enabled =
1170       !profile()->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled);
1171   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS,
1172                                         dev_tools_enabled);
1173   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_CONSOLE,
1174                                         dev_tools_enabled);
1175   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_DEVICES,
1176                                         dev_tools_enabled);
1177   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_INSPECT,
1178                                         dev_tools_enabled);
1179   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_TOGGLE,
1180                                         dev_tools_enabled);
1181 }
1182
1183 void BrowserCommandController::UpdateCommandsForBookmarkEditing() {
1184   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_PAGE,
1185                                         CanBookmarkCurrentPage(browser_));
1186   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_ALL_TABS,
1187                                         CanBookmarkAllTabs(browser_));
1188   command_updater_.UpdateCommandEnabled(IDC_PIN_TO_START_SCREEN,
1189                                         true);
1190 }
1191
1192 void BrowserCommandController::UpdateCommandsForBookmarkBar() {
1193   command_updater_.UpdateCommandEnabled(IDC_SHOW_BOOKMARK_BAR,
1194       browser_defaults::bookmarks_enabled &&
1195       !profile()->IsGuestSession() &&
1196       !profile()->GetPrefs()->IsManagedPreference(prefs::kShowBookmarkBar) &&
1197       IsShowingMainUI());
1198 }
1199
1200 void BrowserCommandController::UpdateCommandsForFileSelectionDialogs() {
1201   UpdateSaveAsState();
1202   UpdateOpenFileState(&command_updater_);
1203 }
1204
1205 void BrowserCommandController::UpdateCommandsForFullscreenMode() {
1206   WindowState window_state = WINDOW_STATE_NOT_FULLSCREEN;
1207   if (window() && window()->IsFullscreen()) {
1208     window_state = WINDOW_STATE_FULLSCREEN;
1209 #if defined(OS_WIN)
1210     if (window()->IsInMetroSnapMode())
1211       window_state = WINDOW_STATE_METRO_SNAP;
1212 #endif
1213   }
1214   bool show_main_ui = IsShowingMainUI();
1215   bool main_not_fullscreen =
1216       show_main_ui && window_state == WINDOW_STATE_NOT_FULLSCREEN;
1217
1218   // Navigation commands
1219   command_updater_.UpdateCommandEnabled(IDC_OPEN_CURRENT_URL, show_main_ui);
1220
1221   // Window management commands
1222   command_updater_.UpdateCommandEnabled(
1223       IDC_SHOW_AS_TAB,
1224       !browser_->is_type_tabbed() &&
1225           window_state == WINDOW_STATE_NOT_FULLSCREEN);
1226
1227   // Focus various bits of UI
1228   command_updater_.UpdateCommandEnabled(IDC_FOCUS_TOOLBAR, show_main_ui);
1229   command_updater_.UpdateCommandEnabled(IDC_FOCUS_LOCATION, show_main_ui);
1230   command_updater_.UpdateCommandEnabled(IDC_FOCUS_SEARCH, show_main_ui);
1231   command_updater_.UpdateCommandEnabled(
1232       IDC_FOCUS_MENU_BAR, main_not_fullscreen);
1233   command_updater_.UpdateCommandEnabled(
1234       IDC_FOCUS_NEXT_PANE, main_not_fullscreen);
1235   command_updater_.UpdateCommandEnabled(
1236       IDC_FOCUS_PREVIOUS_PANE, main_not_fullscreen);
1237   command_updater_.UpdateCommandEnabled(
1238       IDC_FOCUS_BOOKMARKS, main_not_fullscreen);
1239   command_updater_.UpdateCommandEnabled(
1240       IDC_FOCUS_INFOBARS, main_not_fullscreen);
1241
1242   // Show various bits of UI
1243   command_updater_.UpdateCommandEnabled(IDC_DEVELOPER_MENU, show_main_ui);
1244 #if defined(GOOGLE_CHROME_BUILD)
1245   command_updater_.UpdateCommandEnabled(IDC_FEEDBACK, show_main_ui);
1246 #endif
1247   UpdateShowSyncState(show_main_ui);
1248
1249   // Settings page/subpages are forced to open in normal mode. We disable these
1250   // commands for guest sessions and when incognito is forced.
1251   const bool options_enabled = show_main_ui &&
1252       IncognitoModePrefs::GetAvailability(
1253           profile()->GetPrefs()) != IncognitoModePrefs::FORCED;
1254   const bool guest_session = profile()->IsGuestSession();
1255   command_updater_.UpdateCommandEnabled(IDC_OPTIONS, options_enabled);
1256   command_updater_.UpdateCommandEnabled(IDC_IMPORT_SETTINGS,
1257                                         options_enabled && !guest_session);
1258
1259   command_updater_.UpdateCommandEnabled(IDC_EDIT_SEARCH_ENGINES, show_main_ui);
1260   command_updater_.UpdateCommandEnabled(IDC_VIEW_PASSWORDS, show_main_ui);
1261   command_updater_.UpdateCommandEnabled(IDC_ABOUT, show_main_ui);
1262   command_updater_.UpdateCommandEnabled(IDC_SHOW_APP_MENU, show_main_ui);
1263 #if defined (ENABLE_PROFILING) && !defined(NO_TCMALLOC)
1264   command_updater_.UpdateCommandEnabled(IDC_PROFILING_ENABLED, show_main_ui);
1265 #endif
1266
1267   // Disable explicit fullscreen toggling when in metro snap mode.
1268   bool fullscreen_enabled = window_state != WINDOW_STATE_METRO_SNAP;
1269 #if !defined(OS_MACOSX)
1270   if (window_state == WINDOW_STATE_NOT_FULLSCREEN &&
1271       !profile()->GetPrefs()->GetBoolean(prefs::kFullscreenAllowed)) {
1272     // Disable toggling into fullscreen mode if disallowed by pref.
1273     fullscreen_enabled = false;
1274   }
1275 #endif
1276
1277   command_updater_.UpdateCommandEnabled(IDC_FULLSCREEN, fullscreen_enabled);
1278   command_updater_.UpdateCommandEnabled(IDC_PRESENTATION_MODE,
1279                                         fullscreen_enabled);
1280
1281   UpdateCommandsForBookmarkBar();
1282   UpdateCommandsForMultipleProfiles();
1283 }
1284
1285 void BrowserCommandController::UpdateCommandsForMultipleProfiles() {
1286   bool is_regular_or_guest_session =
1287       profile()->IsGuestSession() || !profile()->IsOffTheRecord();
1288   bool enable = IsShowingMainUI() &&
1289       is_regular_or_guest_session &&
1290       profile_manager_ &&
1291       AvatarMenu::ShouldShowAvatarMenu();
1292   command_updater_.UpdateCommandEnabled(IDC_SHOW_AVATAR_MENU,
1293                                         enable);
1294 }
1295
1296 void BrowserCommandController::UpdatePrintingState() {
1297   bool print_enabled = CanPrint(browser_);
1298   command_updater_.UpdateCommandEnabled(IDC_PRINT, print_enabled);
1299   command_updater_.UpdateCommandEnabled(IDC_ADVANCED_PRINT,
1300                                         CanAdvancedPrint(browser_));
1301   command_updater_.UpdateCommandEnabled(IDC_PRINT_TO_DESTINATION,
1302                                         print_enabled);
1303 #if defined(OS_WIN)
1304   HMODULE metro_module = base::win::GetMetroModule();
1305   if (metro_module != NULL) {
1306     typedef void (*MetroEnablePrinting)(BOOL);
1307     MetroEnablePrinting metro_enable_printing =
1308         reinterpret_cast<MetroEnablePrinting>(
1309             ::GetProcAddress(metro_module, "MetroEnablePrinting"));
1310     if (metro_enable_printing)
1311       metro_enable_printing(print_enabled);
1312   }
1313 #endif
1314 }
1315
1316 void BrowserCommandController::UpdateSaveAsState() {
1317   command_updater_.UpdateCommandEnabled(IDC_SAVE_PAGE, CanSavePage(browser_));
1318 }
1319
1320 void BrowserCommandController::UpdateShowSyncState(bool show_main_ui) {
1321   command_updater_.UpdateCommandEnabled(
1322       IDC_SHOW_SYNC_SETUP, show_main_ui && pref_signin_allowed_.GetValue());
1323 }
1324
1325 // static
1326 void BrowserCommandController::UpdateOpenFileState(
1327     CommandUpdater* command_updater) {
1328   bool enabled = true;
1329   PrefService* local_state = g_browser_process->local_state();
1330   if (local_state)
1331     enabled = local_state->GetBoolean(prefs::kAllowFileSelectionDialogs);
1332
1333   command_updater->UpdateCommandEnabled(IDC_OPEN_FILE, enabled);
1334 }
1335
1336 void BrowserCommandController::UpdateReloadStopState(bool is_loading,
1337                                                      bool force) {
1338   window()->UpdateReloadStopState(is_loading, force);
1339   command_updater_.UpdateCommandEnabled(IDC_STOP, is_loading);
1340 }
1341
1342 void BrowserCommandController::UpdateCommandsForFind() {
1343   TabStripModel* model = browser_->tab_strip_model();
1344   bool enabled = !model->IsTabBlocked(model->active_index()) &&
1345                  !browser_->is_devtools();
1346
1347   command_updater_.UpdateCommandEnabled(IDC_FIND, enabled);
1348   command_updater_.UpdateCommandEnabled(IDC_FIND_NEXT, enabled);
1349   command_updater_.UpdateCommandEnabled(IDC_FIND_PREVIOUS, enabled);
1350 }
1351
1352 void BrowserCommandController::AddInterstitialObservers(WebContents* contents) {
1353   interstitial_observers_.push_back(new InterstitialObserver(this, contents));
1354 }
1355
1356 void BrowserCommandController::RemoveInterstitialObservers(
1357     WebContents* contents) {
1358   for (size_t i = 0; i < interstitial_observers_.size(); i++) {
1359     if (interstitial_observers_[i]->web_contents() != contents)
1360       continue;
1361
1362     delete interstitial_observers_[i];
1363     interstitial_observers_.erase(interstitial_observers_.begin() + i);
1364     return;
1365   }
1366 }
1367
1368 BrowserWindow* BrowserCommandController::window() {
1369   return browser_->window();
1370 }
1371
1372 Profile* BrowserCommandController::profile() {
1373   return browser_->profile();
1374 }
1375
1376 }  // namespace chrome