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/extensions/extension_util.h"
  15 #include "chrome/browser/lifetime/application_lifetime.h"
  16 #include "chrome/browser/prefs/incognito_mode_prefs.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 "extensions/browser/extension_system.h"
  45 #include "ui/events/keycodes/keyboard_codes.h"
  46
  47 #if defined(OS_MACOSX)
  48 #include "chrome/browser/ui/browser_commands_mac.h"
  49 #endif
  50
  51 #if defined(OS_WIN)
  52 #include "base/win/metro.h"
  53 #include "base/win/windows_version.h"
  54 #include "chrome/browser/ui/apps/apps_metro_handler_win.h"
  55 #include "content/public/browser/gpu_data_manager.h"
  56 #endif
  57
  58 #if defined(USE_ASH)
  59 #include "ash/accelerators/accelerator_commands.h"
  60 #include "chrome/browser/ui/ash/ash_util.h"
  61 #endif
  62
  63 #if defined(OS_CHROMEOS)
  64 #include "ash/multi_profile_uma.h"
  65 #include "ash/session/session_state_delegate.h"
  66 #include "ash/shell.h"
  67 #include "chrome/browser/ui/ash/multi_user/multi_user_context_menu.h"
  68 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
  69 #include "chrome/browser/ui/browser_commands_chromeos.h"
  70 #endif
  71
  72 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
  73 #include "ui/events/linux/text_edit_key_bindings_delegate_auralinux.h"
  74 #endif
  75
  76 using content::NavigationEntry;
  77 using content::NavigationController;
  78 using content::WebContents;
  79
  80 namespace {
  81
  82 enum WindowState {
  83   // Not in fullscreen mode.
  84   WINDOW_STATE_NOT_FULLSCREEN,
  85
  86   // Fullscreen mode, occupying the whole screen.
  87   WINDOW_STATE_FULLSCREEN,
  88
  89   // Fullscreen mode for metro snap, occupying the full height and 20% of
  90   // the screen width.
  91   WINDOW_STATE_METRO_SNAP,
  92 };
  93
  94 // Returns |true| if entry has an internal chrome:// URL, |false| otherwise.
  95 bool HasInternalURL(const NavigationEntry* entry) {
  96   if (!entry)
  97     return false;
  98
  99   // Check the |virtual_url()| first. This catches regular chrome:// URLs
 100   // including URLs that were rewritten (such as chrome://bookmarks).
 101   if (entry->GetVirtualURL().SchemeIs(content::kChromeUIScheme))
 102     return true;
 103
 104   // If the |virtual_url()| isn't a chrome:// URL, check if it's actually
 105   // view-source: of a chrome:// URL.
 106   if (entry->GetVirtualURL().SchemeIs(content::kViewSourceScheme))
 107     return entry->GetURL().SchemeIs(content::kChromeUIScheme);
 108
 109   return false;
 110 }
 111
 112 #if defined(OS_WIN)
 113 // Windows 8 specific helper class to manage DefaultBrowserWorker. It does the
 114 // following asynchronous actions in order:
 115 // 1- Check that chrome is the default browser
 116 // 2- If we are the default, restart chrome in metro and exit
 117 // 3- If not the default browser show the 'select default browser' system dialog
 118 // 4- When dialog dismisses check again who got made the default
 119 // 5- If we are the default then restart chrome in metro and exit
 120 // 6- If we are not the default exit.
 121 //
 122 // Note: this class deletes itself.
 123 class SwitchToMetroUIHandler
 124     : public ShellIntegration::DefaultWebClientObserver {
 125  public:
 126   SwitchToMetroUIHandler()
 127       : default_browser_worker_(
 128             new ShellIntegration::DefaultBrowserWorker(this)),
 129         first_check_(true) {
 130     default_browser_worker_->StartCheckIsDefault();
 131   }
 132
 133   virtual ~SwitchToMetroUIHandler() {
 134     default_browser_worker_->ObserverDestroyed();
 135   }
 136
 137  private:
 138   virtual void SetDefaultWebClientUIState(
 139       ShellIntegration::DefaultWebClientUIState state) override {
 140     switch (state) {
 141       case ShellIntegration::STATE_PROCESSING:
 142         return;
 143       case ShellIntegration::STATE_UNKNOWN :
 144         break;
 145       case ShellIntegration::STATE_IS_DEFAULT:
 146         chrome::AttemptRestartToMetroMode();
 147         break;
 148       case ShellIntegration::STATE_NOT_DEFAULT:
 149         if (first_check_) {
 150           default_browser_worker_->StartSetAsDefault();
 151           return;
 152         }
 153         break;
 154       default:
 155         NOTREACHED();
 156     }
 157     delete this;
 158   }
 159
 160   virtual void OnSetAsDefaultConcluded(bool success)  override {
 161     if (!success) {
 162       delete this;
 163       return;
 164     }
 165     first_check_ = false;
 166     default_browser_worker_->StartCheckIsDefault();
 167   }
 168
 169   virtual bool IsInteractiveSetDefaultPermitted() override {
 170     return true;
 171   }
 172
 173   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
 174   bool first_check_;
 175
 176   DISALLOW_COPY_AND_ASSIGN(SwitchToMetroUIHandler);
 177 };
 178 #endif  // defined(OS_WIN)
 179
 180 }  // namespace
 181
 182 namespace chrome {
 183
 184 ///////////////////////////////////////////////////////////////////////////////
 185 // BrowserCommandController, public:
 186
 187 BrowserCommandController::BrowserCommandController(Browser* browser)
 188     : browser_(browser),
 189       command_updater_(this),
 190       block_command_execution_(false),
 191       last_blocked_command_id_(-1),
 192       last_blocked_command_disposition_(CURRENT_TAB) {
 193   browser_->tab_strip_model()->AddObserver(this);
 194   PrefService* local_state = g_browser_process->local_state();
 195   if (local_state) {
 196     local_pref_registrar_.Init(local_state);
 197     local_pref_registrar_.Add(
 198         prefs::kAllowFileSelectionDialogs,
 199         base::Bind(
 200             &BrowserCommandController::UpdateCommandsForFileSelectionDialogs,
 201             base::Unretained(this)));
 202   }
 203
 204   profile_pref_registrar_.Init(profile()->GetPrefs());
 205   profile_pref_registrar_.Add(
 206       prefs::kDevToolsDisabled,
 207       base::Bind(&BrowserCommandController::UpdateCommandsForDevTools,
 208                  base::Unretained(this)));
 209   profile_pref_registrar_.Add(
 210       bookmarks::prefs::kEditBookmarksEnabled,
 211       base::Bind(&BrowserCommandController::UpdateCommandsForBookmarkEditing,
 212                  base::Unretained(this)));
 213   profile_pref_registrar_.Add(
 214       bookmarks::prefs::kShowBookmarkBar,
 215       base::Bind(&BrowserCommandController::UpdateCommandsForBookmarkBar,
 216                  base::Unretained(this)));
 217   profile_pref_registrar_.Add(
 218       prefs::kIncognitoModeAvailability,
 219       base::Bind(
 220           &BrowserCommandController::UpdateCommandsForIncognitoAvailability,
 221           base::Unretained(this)));
 222   profile_pref_registrar_.Add(
 223       prefs::kPrintingEnabled,
 224       base::Bind(&BrowserCommandController::UpdatePrintingState,
 225                  base::Unretained(this)));
 226 #if !defined(OS_MACOSX)
 227   profile_pref_registrar_.Add(
 228       prefs::kFullscreenAllowed,
 229       base::Bind(&BrowserCommandController::UpdateCommandsForFullscreenMode,
 230                  base::Unretained(this)));
 231 #endif
 232   pref_signin_allowed_.Init(
 233       prefs::kSigninAllowed,
 234       profile()->GetOriginalProfile()->GetPrefs(),
 235       base::Bind(&BrowserCommandController::OnSigninAllowedPrefChange,
 236                  base::Unretained(this)));
 237
 238   InitCommandState();
 239
 240   TabRestoreService* tab_restore_service =
 241       TabRestoreServiceFactory::GetForProfile(profile());
 242   if (tab_restore_service) {
 243     tab_restore_service->AddObserver(this);
 244     TabRestoreServiceChanged(tab_restore_service);
 245   }
 246 }
 247
 248 BrowserCommandController::~BrowserCommandController() {
 249   // TabRestoreService may have been shutdown by the time we get here. Don't
 250   // trigger creating it.
 251   TabRestoreService* tab_restore_service =
 252       TabRestoreServiceFactory::GetForProfileIfExisting(profile());
 253   if (tab_restore_service)
 254     tab_restore_service->RemoveObserver(this);
 255   profile_pref_registrar_.RemoveAll();
 256   local_pref_registrar_.RemoveAll();
 257   browser_->tab_strip_model()->RemoveObserver(this);
 258 }
 259
 260 bool BrowserCommandController::IsReservedCommandOrKey(
 261     int command_id,
 262     const content::NativeWebKeyboardEvent& event) {
 263   // In Apps mode, no keys are reserved.
 264   if (browser_->is_app())
 265     return false;
 266
 267 #if defined(OS_CHROMEOS)
 268   // On Chrome OS, the top row of keys are mapped to browser actions like
 269   // back/forward or refresh. We don't want web pages to be able to change the
 270   // behavior of these keys.  Ash handles F4 and up; this leaves us needing to
 271   // reserve browser back/forward and refresh here.
 272   ui::KeyboardCode key_code =
 273     static_cast<ui::KeyboardCode>(event.windowsKeyCode);
 274   if ((key_code == ui::VKEY_BROWSER_BACK && command_id == IDC_BACK) ||
 275       (key_code == ui::VKEY_BROWSER_FORWARD && command_id == IDC_FORWARD) ||
 276       (key_code == ui::VKEY_BROWSER_REFRESH && command_id == IDC_RELOAD)) {
 277     return true;
 278   }
 279 #endif
 280
 281   if (window()->IsFullscreen() && command_id == IDC_FULLSCREEN)
 282     return true;
 283
 284 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 285   // If this key was registered by the user as a content editing hotkey, then
 286   // it is not reserved.
 287   ui::TextEditKeyBindingsDelegateAuraLinux* delegate =
 288       ui::GetTextEditKeyBindingsDelegate();
 289   if (delegate && event.os_event && delegate->MatchEvent(*event.os_event, NULL))
 290     return false;
 291 #endif
 292
 293   return command_id == IDC_CLOSE_TAB ||
 294          command_id == IDC_CLOSE_WINDOW ||
 295          command_id == IDC_NEW_INCOGNITO_WINDOW ||
 296          command_id == IDC_NEW_TAB ||
 297          command_id == IDC_NEW_WINDOW ||
 298          command_id == IDC_RESTORE_TAB ||
 299          command_id == IDC_SELECT_NEXT_TAB ||
 300          command_id == IDC_SELECT_PREVIOUS_TAB ||
 301          command_id == IDC_EXIT;
 302 }
 303
 304 void BrowserCommandController::SetBlockCommandExecution(bool block) {
 305   block_command_execution_ = block;
 306   if (block) {
 307     last_blocked_command_id_ = -1;
 308     last_blocked_command_disposition_ = CURRENT_TAB;
 309   }
 310 }
 311
 312 int BrowserCommandController::GetLastBlockedCommand(
 313     WindowOpenDisposition* disposition) {
 314   if (disposition)
 315     *disposition = last_blocked_command_disposition_;
 316   return last_blocked_command_id_;
 317 }
 318
 319 void BrowserCommandController::TabStateChanged() {
 320   UpdateCommandsForTabState();
 321 }
 322
 323 void BrowserCommandController::ZoomStateChanged() {
 324   UpdateCommandsForZoomState();
 325 }
 326
 327 void BrowserCommandController::ContentRestrictionsChanged() {
 328   UpdateCommandsForContentRestrictionState();
 329 }
 330
 331 void BrowserCommandController::FullscreenStateChanged() {
 332   UpdateCommandsForFullscreenMode();
 333 }
 334
 335 void BrowserCommandController::PrintingStateChanged() {
 336   UpdatePrintingState();
 337 }
 338
 339 void BrowserCommandController::LoadingStateChanged(bool is_loading,
 340                                                    bool force) {
 341   UpdateReloadStopState(is_loading, force);
 342 }
 343
 344 void BrowserCommandController::ExtensionStateChanged() {
 345   // Extensions may disable the bookmark editing commands.
 346   UpdateCommandsForBookmarkEditing();
 347 }
 348
 349 ////////////////////////////////////////////////////////////////////////////////
 350 // BrowserCommandController, CommandUpdaterDelegate implementation:
 351
 352 void BrowserCommandController::ExecuteCommandWithDisposition(
 353     int id,
 354     WindowOpenDisposition disposition) {
 355   // No commands are enabled if there is not yet any selected tab.
 356   // TODO(pkasting): It seems like we should not need this, because either
 357   // most/all commands should not have been enabled yet anyway or the ones that
 358   // are enabled should be global, or safe themselves against having no selected
 359   // tab.  However, Ben says he tried removing this before and got lots of
 360   // crashes, e.g. from Windows sending WM_COMMANDs at random times during
 361   // window construction.  This probably could use closer examination someday.
 362   if (browser_->tab_strip_model()->active_index() == TabStripModel::kNoTab)
 363     return;
 364
 365   DCHECK(command_updater_.IsCommandEnabled(id)) << "Invalid/disabled command "
 366                                                 << id;
 367
 368   // If command execution is blocked then just record the command and return.
 369   if (block_command_execution_) {
 370     // We actually only allow no more than one blocked command, otherwise some
 371     // commands maybe lost.
 372     DCHECK_EQ(last_blocked_command_id_, -1);
 373     last_blocked_command_id_ = id;
 374     last_blocked_command_disposition_ = disposition;
 375     return;
 376   }
 377
 378   // The order of commands in this switch statement must match the function
 379   // declaration order in browser.h!
 380   switch (id) {
 381     // Navigation commands
 382     case IDC_BACK:
 383       GoBack(browser_, disposition);
 384       break;
 385     case IDC_FORWARD:
 386       GoForward(browser_, disposition);
 387       break;
 388     case IDC_RELOAD:
 389       Reload(browser_, disposition);
 390       break;
 391     case IDC_RELOAD_CLEARING_CACHE:
 392       ClearCache(browser_);
 393       // FALL THROUGH
 394     case IDC_RELOAD_IGNORING_CACHE:
 395       ReloadIgnoringCache(browser_, disposition);
 396       break;
 397     case IDC_HOME:
 398       Home(browser_, disposition);
 399       break;
 400     case IDC_OPEN_CURRENT_URL:
 401       OpenCurrentURL(browser_);
 402       break;
 403     case IDC_STOP:
 404       Stop(browser_);
 405       break;
 406
 407      // Window management commands
 408     case IDC_NEW_WINDOW:
 409       NewWindow(browser_);
 410       break;
 411     case IDC_NEW_INCOGNITO_WINDOW:
 412       NewIncognitoWindow(browser_);
 413       break;
 414     case IDC_CLOSE_WINDOW:
 415       content::RecordAction(base::UserMetricsAction("CloseWindowByKey"));
 416       CloseWindow(browser_);
 417       break;
 418     case IDC_NEW_TAB:
 419       NewTab(browser_);
 420       break;
 421     case IDC_CLOSE_TAB:
 422       content::RecordAction(base::UserMetricsAction("CloseTabByKey"));
 423       CloseTab(browser_);
 424       break;
 425     case IDC_SELECT_NEXT_TAB:
 426       content::RecordAction(base::UserMetricsAction("Accel_SelectNextTab"));
 427       SelectNextTab(browser_);
 428       break;
 429     case IDC_SELECT_PREVIOUS_TAB:
 430       content::RecordAction(
 431           base::UserMetricsAction("Accel_SelectPreviousTab"));
 432       SelectPreviousTab(browser_);
 433       break;
 434     case IDC_MOVE_TAB_NEXT:
 435       MoveTabNext(browser_);
 436       break;
 437     case IDC_MOVE_TAB_PREVIOUS:
 438       MoveTabPrevious(browser_);
 439       break;
 440     case IDC_SELECT_TAB_0:
 441     case IDC_SELECT_TAB_1:
 442     case IDC_SELECT_TAB_2:
 443     case IDC_SELECT_TAB_3:
 444     case IDC_SELECT_TAB_4:
 445     case IDC_SELECT_TAB_5:
 446     case IDC_SELECT_TAB_6:
 447     case IDC_SELECT_TAB_7:
 448       SelectNumberedTab(browser_, id - IDC_SELECT_TAB_0);
 449       break;
 450     case IDC_SELECT_LAST_TAB:
 451       SelectLastTab(browser_);
 452       break;
 453     case IDC_DUPLICATE_TAB:
 454       DuplicateTab(browser_);
 455       break;
 456     case IDC_RESTORE_TAB:
 457       RestoreTab(browser_);
 458       break;
 459     case IDC_SHOW_AS_TAB:
 460       ConvertPopupToTabbedBrowser(browser_);
 461       break;
 462     case IDC_FULLSCREEN:
 463 #if defined(OS_MACOSX)
 464       chrome::ToggleFullscreenWithToolbarOrFallback(browser_);
 465 #else
 466       chrome::ToggleFullscreenMode(browser_);
 467 #endif
 468       break;
 469
 470 #if defined(OS_CHROMEOS)
 471     case IDC_VISIT_DESKTOP_OF_LRU_USER_2:
 472     case IDC_VISIT_DESKTOP_OF_LRU_USER_3:
 473       ExecuteVisitDesktopCommand(id, browser_->window()->GetNativeWindow());
 474       break;
 475 #endif
 476
 477 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 478     case IDC_USE_SYSTEM_TITLE_BAR: {
 479       PrefService* prefs = browser_->profile()->GetPrefs();
 480       prefs->SetBoolean(prefs::kUseCustomChromeFrame,
 481                         !prefs->GetBoolean(prefs::kUseCustomChromeFrame));
 482       break;
 483     }
 484 #endif
 485
 486 #if defined(OS_WIN)
 487     // Windows 8 specific commands.
 488     case IDC_METRO_SNAP_ENABLE:
 489       browser_->SetMetroSnapMode(true);
 490       break;
 491     case IDC_METRO_SNAP_DISABLE:
 492       browser_->SetMetroSnapMode(false);
 493       break;
 494     case IDC_WIN_DESKTOP_RESTART:
 495       if (!VerifyASHSwitchForApps(window()->GetNativeWindow(), id))
 496         break;
 497
 498       chrome::AttemptRestartToDesktopMode();
 499       if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
 500         content::RecordAction(base::UserMetricsAction("Win8DesktopRestart"));
 501       } else {
 502         content::RecordAction(base::UserMetricsAction("Win7DesktopRestart"));
 503       }
 504       break;
 505     case IDC_WIN8_METRO_RESTART:
 506     case IDC_WIN_CHROMEOS_RESTART:
 507       if (!VerifyASHSwitchForApps(window()->GetNativeWindow(), id))
 508         break;
 509       if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
 510         // SwitchToMetroUIHandler deletes itself.
 511         new SwitchToMetroUIHandler;
 512         content::RecordAction(base::UserMetricsAction("Win8MetroRestart"));
 513       } else {
 514         content::RecordAction(base::UserMetricsAction("Win7ASHRestart"));
 515         chrome::AttemptRestartToMetroMode();
 516       }
 517       break;
 518     case IDC_PIN_TO_START_SCREEN:
 519       TogglePagePinnedToStartScreen(browser_);
 520       break;
 521 #endif
 522
 523 #if defined(OS_MACOSX)
 524     case IDC_PRESENTATION_MODE:
 525       chrome::ToggleFullscreenMode(browser_);
 526       break;
 527 #endif
 528     case IDC_EXIT:
 529       Exit();
 530       break;
 531
 532     // Page-related commands
 533     case IDC_SAVE_PAGE:
 534       SavePage(browser_);
 535       break;
 536     case IDC_BOOKMARK_PAGE:
 537       BookmarkCurrentPageAllowingExtensionOverrides(browser_);
 538       break;
 539     case IDC_BOOKMARK_ALL_TABS:
 540       BookmarkAllTabs(browser_);
 541       break;
 542     case IDC_VIEW_SOURCE:
 543       ViewSelectedSource(browser_);
 544       break;
 545     case IDC_EMAIL_PAGE_LOCATION:
 546       EmailPageLocation(browser_);
 547       break;
 548     case IDC_PRINT:
 549       Print(browser_);
 550       break;
 551 #if defined(ENABLE_BASIC_PRINTING)
 552     case IDC_BASIC_PRINT:
 553       content::RecordAction(base::UserMetricsAction("Accel_Advanced_Print"));
 554       BasicPrint(browser_);
 555       break;
 556 #endif  // ENABLE_BASIC_PRINTING
 557     case IDC_TRANSLATE_PAGE:
 558       Translate(browser_);
 559       break;
 560     case IDC_MANAGE_PASSWORDS_FOR_PAGE:
 561       ManagePasswordsForPage(browser_);
 562       break;
 563
 564     // Page encoding commands
 565     case IDC_ENCODING_AUTO_DETECT:
 566       browser_->ToggleEncodingAutoDetect();
 567       break;
 568     case IDC_ENCODING_UTF8:
 569     case IDC_ENCODING_UTF16LE:
 570     case IDC_ENCODING_WINDOWS1252:
 571     case IDC_ENCODING_GBK:
 572     case IDC_ENCODING_GB18030:
 573     case IDC_ENCODING_BIG5HKSCS:
 574     case IDC_ENCODING_BIG5:
 575     case IDC_ENCODING_KOREAN:
 576     case IDC_ENCODING_SHIFTJIS:
 577     case IDC_ENCODING_ISO2022JP:
 578     case IDC_ENCODING_EUCJP:
 579     case IDC_ENCODING_THAI:
 580     case IDC_ENCODING_ISO885915:
 581     case IDC_ENCODING_MACINTOSH:
 582     case IDC_ENCODING_ISO88592:
 583     case IDC_ENCODING_WINDOWS1250:
 584     case IDC_ENCODING_ISO88595:
 585     case IDC_ENCODING_WINDOWS1251:
 586     case IDC_ENCODING_KOI8R:
 587     case IDC_ENCODING_KOI8U:
 588     case IDC_ENCODING_ISO88597:
 589     case IDC_ENCODING_WINDOWS1253:
 590     case IDC_ENCODING_ISO88594:
 591     case IDC_ENCODING_ISO885913:
 592     case IDC_ENCODING_WINDOWS1257:
 593     case IDC_ENCODING_ISO88593:
 594     case IDC_ENCODING_ISO885910:
 595     case IDC_ENCODING_ISO885914:
 596     case IDC_ENCODING_ISO885916:
 597     case IDC_ENCODING_WINDOWS1254:
 598     case IDC_ENCODING_ISO88596:
 599     case IDC_ENCODING_WINDOWS1256:
 600     case IDC_ENCODING_ISO88598:
 601     case IDC_ENCODING_ISO88598I:
 602     case IDC_ENCODING_WINDOWS1255:
 603     case IDC_ENCODING_WINDOWS1258:
 604       browser_->OverrideEncoding(id);
 605       break;
 606
 607     // Clipboard commands
 608     case IDC_CUT:
 609       Cut(browser_);
 610       break;
 611     case IDC_COPY:
 612       Copy(browser_);
 613       break;
 614     case IDC_PASTE:
 615       Paste(browser_);
 616       break;
 617
 618     // Find-in-page
 619     case IDC_FIND:
 620       Find(browser_);
 621       break;
 622     case IDC_FIND_NEXT:
 623       FindNext(browser_);
 624       break;
 625     case IDC_FIND_PREVIOUS:
 626       FindPrevious(browser_);
 627       break;
 628
 629     // Zoom
 630     case IDC_ZOOM_PLUS:
 631       Zoom(browser_, content::PAGE_ZOOM_IN);
 632       break;
 633     case IDC_ZOOM_NORMAL:
 634       Zoom(browser_, content::PAGE_ZOOM_RESET);
 635       break;
 636     case IDC_ZOOM_MINUS:
 637       Zoom(browser_, content::PAGE_ZOOM_OUT);
 638       break;
 639
 640     // Focus various bits of UI
 641     case IDC_FOCUS_TOOLBAR:
 642       content::RecordAction(base::UserMetricsAction("Accel_Focus_Toolbar"));
 643       FocusToolbar(browser_);
 644       break;
 645     case IDC_FOCUS_LOCATION:
 646       content::RecordAction(base::UserMetricsAction("Accel_Focus_Location"));
 647       FocusLocationBar(browser_);
 648       break;
 649     case IDC_FOCUS_SEARCH:
 650       content::RecordAction(base::UserMetricsAction("Accel_Focus_Search"));
 651       FocusSearch(browser_);
 652       break;
 653     case IDC_FOCUS_MENU_BAR:
 654       FocusAppMenu(browser_);
 655       break;
 656     case IDC_FOCUS_BOOKMARKS:
 657       content::RecordAction(
 658           base::UserMetricsAction("Accel_Focus_Bookmarks"));
 659       FocusBookmarksToolbar(browser_);
 660       break;
 661     case IDC_FOCUS_INFOBARS:
 662       FocusInfobars(browser_);
 663       break;
 664     case IDC_FOCUS_NEXT_PANE:
 665       FocusNextPane(browser_);
 666       break;
 667     case IDC_FOCUS_PREVIOUS_PANE:
 668       FocusPreviousPane(browser_);
 669       break;
 670
 671     // Show various bits of UI
 672     case IDC_OPEN_FILE:
 673       browser_->OpenFile();
 674       break;
 675     case IDC_CREATE_SHORTCUTS:
 676       CreateApplicationShortcuts(browser_);
 677       break;
 678     case IDC_CREATE_HOSTED_APP:
 679       CreateBookmarkAppFromCurrentWebContents(browser_);
 680       break;
 681     case IDC_DEV_TOOLS:
 682       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Show());
 683       break;
 684     case IDC_DEV_TOOLS_CONSOLE:
 685       ToggleDevToolsWindow(browser_, DevToolsToggleAction::ShowConsole());
 686       break;
 687     case IDC_DEV_TOOLS_DEVICES:
 688       InspectUI::InspectDevices(browser_);
 689       break;
 690     case IDC_DEV_TOOLS_INSPECT:
 691       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Inspect());
 692       break;
 693     case IDC_DEV_TOOLS_TOGGLE:
 694       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Toggle());
 695       break;
 696     case IDC_TASK_MANAGER:
 697       OpenTaskManager(browser_);
 698       break;
 699 #if defined(OS_CHROMEOS)
 700     case IDC_TAKE_SCREENSHOT:
 701       TakeScreenshot();
 702       break;
 703 #endif
 704 #if defined(GOOGLE_CHROME_BUILD)
 705     case IDC_FEEDBACK:
 706       OpenFeedbackDialog(browser_);
 707       break;
 708 #endif
 709     case IDC_SHOW_BOOKMARK_BAR:
 710       ToggleBookmarkBar(browser_);
 711       break;
 712     case IDC_PROFILING_ENABLED:
 713       Profiling::Toggle();
 714       break;
 715
 716     case IDC_SHOW_BOOKMARK_MANAGER:
 717       ShowBookmarkManager(browser_);
 718       break;
 719     case IDC_SHOW_APP_MENU:
 720       content::RecordAction(base::UserMetricsAction("Accel_Show_App_Menu"));
 721       ShowAppMenu(browser_);
 722       break;
 723     case IDC_SHOW_AVATAR_MENU:
 724       ShowAvatarMenu(browser_);
 725       break;
 726     case IDC_SHOW_HISTORY:
 727       ShowHistory(browser_);
 728       break;
 729     case IDC_SHOW_DOWNLOADS:
 730       ShowDownloads(browser_);
 731       break;
 732     case IDC_MANAGE_EXTENSIONS:
 733       ShowExtensions(browser_, std::string());
 734       break;
 735     case IDC_OPTIONS:
 736       ShowSettings(browser_);
 737       break;
 738     case IDC_EDIT_SEARCH_ENGINES:
 739       ShowSearchEngineSettings(browser_);
 740       break;
 741     case IDC_VIEW_PASSWORDS:
 742       ShowPasswordManager(browser_);
 743       break;
 744     case IDC_CLEAR_BROWSING_DATA:
 745       ShowClearBrowsingDataDialog(browser_);
 746       break;
 747     case IDC_IMPORT_SETTINGS:
 748       ShowImportDialog(browser_);
 749       break;
 750     case IDC_TOGGLE_REQUEST_TABLET_SITE:
 751       ToggleRequestTabletSite(browser_);
 752       break;
 753     case IDC_ABOUT:
 754       ShowAboutChrome(browser_);
 755       break;
 756     case IDC_UPGRADE_DIALOG:
 757       OpenUpdateChromeDialog(browser_);
 758       break;
 759     case IDC_VIEW_INCOMPATIBILITIES:
 760       ShowConflicts(browser_);
 761       break;
 762     case IDC_HELP_PAGE_VIA_KEYBOARD:
 763       ShowHelp(browser_, HELP_SOURCE_KEYBOARD);
 764       break;
 765     case IDC_HELP_PAGE_VIA_MENU:
 766       ShowHelp(browser_, HELP_SOURCE_MENU);
 767       break;
 768     case IDC_SHOW_SIGNIN:
 769       ShowBrowserSigninOrSettings(browser_, signin_metrics::SOURCE_MENU);
 770       break;
 771     case IDC_TOGGLE_SPEECH_INPUT:
 772       ToggleSpeechInput(browser_);
 773       break;
 774     case IDC_DISTILL_PAGE:
 775       DistillCurrentPage(browser_);
 776       break;
 777 #if defined(OS_CHROMEOS)
 778     case IDC_TOUCH_HUD_PROJECTION_TOGGLE:
 779       ash::accelerators::ToggleTouchHudProjection();
 780       break;
 781 #endif
 782
 783     default:
 784       LOG(WARNING) << "Received Unimplemented Command: " << id;
 785       break;
 786   }
 787 }
 788
 789 ////////////////////////////////////////////////////////////////////////////////
 790 // BrowserCommandController, SigninPrefObserver implementation:
 791
 792 void BrowserCommandController::OnSigninAllowedPrefChange() {
 793   // For unit tests, we don't have a window.
 794   if (!window())
 795     return;
 796   UpdateShowSyncState(IsShowingMainUI());
 797 }
 798
 799 // BrowserCommandController, TabStripModelObserver implementation:
 800
 801 void BrowserCommandController::TabInsertedAt(WebContents* contents,
 802                                              int index,
 803                                              bool foreground) {
 804   AddInterstitialObservers(contents);
 805 }
 806
 807 void BrowserCommandController::TabDetachedAt(WebContents* contents, int index) {
 808   RemoveInterstitialObservers(contents);
 809 }
 810
 811 void BrowserCommandController::TabReplacedAt(TabStripModel* tab_strip_model,
 812                                              WebContents* old_contents,
 813                                              WebContents* new_contents,
 814                                              int index) {
 815   RemoveInterstitialObservers(old_contents);
 816   AddInterstitialObservers(new_contents);
 817 }
 818
 819 void BrowserCommandController::TabBlockedStateChanged(
 820     content::WebContents* contents,
 821     int index) {
 822   PrintingStateChanged();
 823   FullscreenStateChanged();
 824   UpdateCommandsForFind();
 825 }
 826
 827 ////////////////////////////////////////////////////////////////////////////////
 828 // BrowserCommandController, TabRestoreServiceObserver implementation:
 829
 830 void BrowserCommandController::TabRestoreServiceChanged(
 831     TabRestoreService* service) {
 832   UpdateTabRestoreCommandState();
 833 }
 834
 835 void BrowserCommandController::TabRestoreServiceDestroyed(
 836     TabRestoreService* service) {
 837   service->RemoveObserver(this);
 838 }
 839
 840 void BrowserCommandController::TabRestoreServiceLoaded(
 841     TabRestoreService* service) {
 842   UpdateTabRestoreCommandState();
 843 }
 844
 845 ////////////////////////////////////////////////////////////////////////////////
 846 // BrowserCommandController, private:
 847
 848 class BrowserCommandController::InterstitialObserver
 849     : public content::WebContentsObserver {
 850  public:
 851   InterstitialObserver(BrowserCommandController* controller,
 852                        content::WebContents* web_contents)
 853       : WebContentsObserver(web_contents),
 854         controller_(controller) {
 855   }
 856
 857   void DidAttachInterstitialPage() override {
 858     controller_->UpdateCommandsForTabState();
 859   }
 860
 861   void DidDetachInterstitialPage() override {
 862     controller_->UpdateCommandsForTabState();
 863   }
 864
 865  private:
 866   BrowserCommandController* controller_;
 867
 868   DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
 869 };
 870
 871 bool BrowserCommandController::IsShowingMainUI() {
 872   bool should_hide_ui = window() && window()->ShouldHideUIForFullscreen();
 873   return browser_->is_type_tabbed() && !should_hide_ui;
 874 }
 875
 876 void BrowserCommandController::InitCommandState() {
 877   // All browser commands whose state isn't set automagically some other way
 878   // (like Back & Forward with initial page load) must have their state
 879   // initialized here, otherwise they will be forever disabled.
 880
 881   // Navigation commands
 882   command_updater_.UpdateCommandEnabled(IDC_RELOAD, true);
 883   command_updater_.UpdateCommandEnabled(IDC_RELOAD_IGNORING_CACHE, true);
 884   command_updater_.UpdateCommandEnabled(IDC_RELOAD_CLEARING_CACHE, true);
 885
 886   // Window management commands
 887   command_updater_.UpdateCommandEnabled(IDC_CLOSE_WINDOW, true);
 888   command_updater_.UpdateCommandEnabled(IDC_NEW_TAB, true);
 889   command_updater_.UpdateCommandEnabled(IDC_CLOSE_TAB, true);
 890   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB, true);
 891   UpdateTabRestoreCommandState();
 892 #if defined(OS_WIN) && defined(USE_ASH)
 893   if (browser_->host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH)
 894     command_updater_.UpdateCommandEnabled(IDC_EXIT, true);
 895 #else
 896   command_updater_.UpdateCommandEnabled(IDC_EXIT, true);
 897 #endif
 898   command_updater_.UpdateCommandEnabled(IDC_DEBUG_FRAME_TOGGLE, true);
 899 #if defined(USE_ASH)
 900   command_updater_.UpdateCommandEnabled(IDC_MINIMIZE_WINDOW, true);
 901 #endif
 902 #if defined(OS_CHROMEOS)
 903   command_updater_.UpdateCommandEnabled(IDC_VISIT_DESKTOP_OF_LRU_USER_2, true);
 904   command_updater_.UpdateCommandEnabled(IDC_VISIT_DESKTOP_OF_LRU_USER_3, true);
 905 #endif
 906 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 907   command_updater_.UpdateCommandEnabled(IDC_USE_SYSTEM_TITLE_BAR, true);
 908 #endif
 909
 910   // Page-related commands
 911   command_updater_.UpdateCommandEnabled(IDC_EMAIL_PAGE_LOCATION, true);
 912   command_updater_.UpdateCommandEnabled(IDC_MANAGE_PASSWORDS_FOR_PAGE, true);
 913   command_updater_.UpdateCommandEnabled(IDC_ENCODING_AUTO_DETECT, true);
 914   command_updater_.UpdateCommandEnabled(IDC_ENCODING_UTF8, true);
 915   command_updater_.UpdateCommandEnabled(IDC_ENCODING_UTF16LE, true);
 916   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1252, true);
 917   command_updater_.UpdateCommandEnabled(IDC_ENCODING_GBK, true);
 918   command_updater_.UpdateCommandEnabled(IDC_ENCODING_GB18030, true);
 919   command_updater_.UpdateCommandEnabled(IDC_ENCODING_BIG5HKSCS, true);
 920   command_updater_.UpdateCommandEnabled(IDC_ENCODING_BIG5, true);
 921   command_updater_.UpdateCommandEnabled(IDC_ENCODING_THAI, true);
 922   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOREAN, true);
 923   command_updater_.UpdateCommandEnabled(IDC_ENCODING_SHIFTJIS, true);
 924   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO2022JP, true);
 925   command_updater_.UpdateCommandEnabled(IDC_ENCODING_EUCJP, true);
 926   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885915, true);
 927   command_updater_.UpdateCommandEnabled(IDC_ENCODING_MACINTOSH, true);
 928   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88592, true);
 929   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1250, true);
 930   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88595, true);
 931   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1251, true);
 932   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOI8R, true);
 933   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOI8U, true);
 934   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88597, true);
 935   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1253, true);
 936   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88594, true);
 937   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885913, true);
 938   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1257, true);
 939   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88593, true);
 940   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885910, true);
 941   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885914, true);
 942   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885916, true);
 943   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1254, true);
 944   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88596, true);
 945   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1256, true);
 946   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88598, true);
 947   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88598I, true);
 948   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1255, true);
 949   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1258, true);
 950
 951   // Zoom
 952   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MENU, true);
 953   command_updater_.UpdateCommandEnabled(IDC_ZOOM_PLUS, true);
 954   command_updater_.UpdateCommandEnabled(IDC_ZOOM_NORMAL, false);
 955   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MINUS, true);
 956
 957   // Show various bits of UI
 958   const bool guest_session = profile()->IsGuestSession();
 959   const bool normal_window = browser_->is_type_tabbed();
 960   UpdateOpenFileState(&command_updater_);
 961   command_updater_.UpdateCommandEnabled(IDC_CREATE_SHORTCUTS, false);
 962   UpdateCommandsForDevTools();
 963   command_updater_.UpdateCommandEnabled(IDC_TASK_MANAGER, CanOpenTaskManager());
 964   command_updater_.UpdateCommandEnabled(IDC_SHOW_HISTORY, !guest_session);
 965   command_updater_.UpdateCommandEnabled(IDC_SHOW_DOWNLOADS, true);
 966   command_updater_.UpdateCommandEnabled(IDC_HELP_MENU, true);
 967   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_KEYBOARD, true);
 968   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_MENU, true);
 969   command_updater_.UpdateCommandEnabled(IDC_BOOKMARKS_MENU, !guest_session);
 970   command_updater_.UpdateCommandEnabled(IDC_RECENT_TABS_MENU,
 971                                         !guest_session &&
 972                                         !profile()->IsOffTheRecord());
 973   command_updater_.UpdateCommandEnabled(IDC_CLEAR_BROWSING_DATA, normal_window);
 974 #if defined(OS_CHROMEOS)
 975   command_updater_.UpdateCommandEnabled(IDC_TAKE_SCREENSHOT, true);
 976   command_updater_.UpdateCommandEnabled(IDC_TOUCH_HUD_PROJECTION_TOGGLE, true);
 977 #else
 978   // Chrome OS uses the system tray menu to handle multi-profiles.
 979   if (normal_window && (guest_session || !profile()->IsOffTheRecord()))
 980     command_updater_.UpdateCommandEnabled(IDC_SHOW_AVATAR_MENU, true);
 981 #endif
 982
 983   UpdateShowSyncState(true);
 984
 985   // Navigation commands
 986   command_updater_.UpdateCommandEnabled(
 987       IDC_HOME,
 988       normal_window ||
 989           (extensions::util::IsNewBookmarkAppsEnabled() && browser_->is_app()));
 990
 991   // Window management commands
 992   command_updater_.UpdateCommandEnabled(IDC_SELECT_NEXT_TAB, normal_window);
 993   command_updater_.UpdateCommandEnabled(IDC_SELECT_PREVIOUS_TAB,
 994                                         normal_window);
 995   command_updater_.UpdateCommandEnabled(IDC_MOVE_TAB_NEXT, normal_window);
 996   command_updater_.UpdateCommandEnabled(IDC_MOVE_TAB_PREVIOUS, normal_window);
 997   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_0, normal_window);
 998   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_1, normal_window);
 999   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_2, normal_window);
1000   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_3, normal_window);
1001   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_4, normal_window);
1002   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_5, normal_window);
1003   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_6, normal_window);
1004   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_7, normal_window);
1005   command_updater_.UpdateCommandEnabled(IDC_SELECT_LAST_TAB, normal_window);
1006 #if defined(OS_WIN)
1007   bool metro = browser_->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH;
1008   command_updater_.UpdateCommandEnabled(IDC_METRO_SNAP_ENABLE, metro);
1009   command_updater_.UpdateCommandEnabled(IDC_METRO_SNAP_DISABLE, metro);
1010   int restart_mode = metro ? IDC_WIN_DESKTOP_RESTART :
1011       (base::win::GetVersion() >= base::win::VERSION_WIN8 ?
1012           IDC_WIN8_METRO_RESTART : IDC_WIN_CHROMEOS_RESTART);
1013   command_updater_.UpdateCommandEnabled(restart_mode, normal_window);
1014 #endif
1015
1016   // These are always enabled; the menu determines their menu item visibility.
1017   command_updater_.UpdateCommandEnabled(IDC_UPGRADE_DIALOG, true);
1018   command_updater_.UpdateCommandEnabled(IDC_VIEW_INCOMPATIBILITIES, true);
1019
1020   // Toggle speech input
1021   command_updater_.UpdateCommandEnabled(IDC_TOGGLE_SPEECH_INPUT, true);
1022
1023   // Distill current page.
1024   command_updater_.UpdateCommandEnabled(
1025       IDC_DISTILL_PAGE, base::CommandLine::ForCurrentProcess()->HasSwitch(
1026                             switches::kEnableDomDistiller));
1027
1028   // Initialize other commands whose state changes based on various conditions.
1029   UpdateCommandsForFullscreenMode();
1030   UpdateCommandsForContentRestrictionState();
1031   UpdateCommandsForBookmarkEditing();
1032   UpdateCommandsForIncognitoAvailability();
1033 }
1034
1035 // static
1036 void BrowserCommandController::UpdateSharedCommandsForIncognitoAvailability(
1037     CommandUpdater* command_updater,
1038     Profile* profile) {
1039   const bool guest_session = profile->IsGuestSession();
1040   // TODO(mlerman): Make GetAvailability account for profile->IsGuestSession().
1041   IncognitoModePrefs::Availability incognito_availability =
1042       IncognitoModePrefs::GetAvailability(profile->GetPrefs());
1043   command_updater->UpdateCommandEnabled(
1044       IDC_NEW_WINDOW,
1045       incognito_availability != IncognitoModePrefs::FORCED);
1046   command_updater->UpdateCommandEnabled(
1047       IDC_NEW_INCOGNITO_WINDOW,
1048       incognito_availability != IncognitoModePrefs::DISABLED && !guest_session);
1049
1050   const bool forced_incognito =
1051       incognito_availability == IncognitoModePrefs::FORCED ||
1052       guest_session;  // Guest always runs in Incognito mode.
1053   command_updater->UpdateCommandEnabled(
1054       IDC_SHOW_BOOKMARK_MANAGER,
1055       browser_defaults::bookmarks_enabled && !forced_incognito);
1056   ExtensionService* extension_service =
1057       extensions::ExtensionSystem::Get(profile)->extension_service();
1058   const bool enable_extensions =
1059       extension_service && extension_service->extensions_enabled();
1060
1061   // Bookmark manager and settings page/subpages are forced to open in normal
1062   // mode. For this reason we disable these commands when incognito is forced.
1063   command_updater->UpdateCommandEnabled(IDC_MANAGE_EXTENSIONS,
1064                                         enable_extensions && !forced_incognito);
1065
1066   command_updater->UpdateCommandEnabled(IDC_IMPORT_SETTINGS, !forced_incognito);
1067   command_updater->UpdateCommandEnabled(IDC_OPTIONS,
1068                                         !forced_incognito || guest_session);
1069   command_updater->UpdateCommandEnabled(IDC_SHOW_SIGNIN, !forced_incognito);
1070 }
1071
1072 void BrowserCommandController::UpdateCommandsForIncognitoAvailability() {
1073   UpdateSharedCommandsForIncognitoAvailability(&command_updater_, profile());
1074
1075   if (!IsShowingMainUI()) {
1076     command_updater_.UpdateCommandEnabled(IDC_IMPORT_SETTINGS, false);
1077     command_updater_.UpdateCommandEnabled(IDC_OPTIONS, false);
1078   }
1079 }
1080
1081 void BrowserCommandController::UpdateCommandsForTabState() {
1082   WebContents* current_web_contents =
1083       browser_->tab_strip_model()->GetActiveWebContents();
1084   if (!current_web_contents)  // May be NULL during tab restore.
1085     return;
1086
1087   // Navigation commands
1088   command_updater_.UpdateCommandEnabled(IDC_BACK, CanGoBack(browser_));
1089   command_updater_.UpdateCommandEnabled(IDC_FORWARD, CanGoForward(browser_));
1090   command_updater_.UpdateCommandEnabled(IDC_RELOAD, CanReload(browser_));
1091   command_updater_.UpdateCommandEnabled(IDC_RELOAD_IGNORING_CACHE,
1092                                         CanReload(browser_));
1093   command_updater_.UpdateCommandEnabled(IDC_RELOAD_CLEARING_CACHE,
1094                                         CanReload(browser_));
1095
1096   // Window management commands
1097   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB,
1098       !browser_->is_app() && CanDuplicateTab(browser_));
1099
1100   // Page-related commands
1101   window()->SetStarredState(
1102       BookmarkTabHelper::FromWebContents(current_web_contents)->is_starred());
1103   window()->ZoomChangedForActiveTab(false);
1104   command_updater_.UpdateCommandEnabled(IDC_VIEW_SOURCE,
1105                                         CanViewSource(browser_));
1106   command_updater_.UpdateCommandEnabled(IDC_EMAIL_PAGE_LOCATION,
1107                                         CanEmailPageLocation(browser_));
1108   if (browser_->is_devtools())
1109     command_updater_.UpdateCommandEnabled(IDC_OPEN_FILE, false);
1110
1111   // Changing the encoding is not possible on Chrome-internal webpages.
1112   NavigationController& nc = current_web_contents->GetController();
1113   bool is_chrome_internal = HasInternalURL(nc.GetLastCommittedEntry()) ||
1114       current_web_contents->ShowingInterstitialPage();
1115   command_updater_.UpdateCommandEnabled(IDC_ENCODING_MENU,
1116       !is_chrome_internal && current_web_contents->IsSavable());
1117
1118   // Show various bits of UI
1119   // TODO(pinkerton): Disable app-mode in the model until we implement it
1120   // on the Mac. Be sure to remove both ifdefs. http://crbug.com/13148
1121 #if !defined(OS_MACOSX)
1122   command_updater_.UpdateCommandEnabled(
1123       IDC_CREATE_SHORTCUTS,
1124       CanCreateApplicationShortcuts(browser_));
1125 #endif
1126   command_updater_.UpdateCommandEnabled(IDC_CREATE_HOSTED_APP,
1127                                         CanCreateBookmarkApp(browser_));
1128
1129   command_updater_.UpdateCommandEnabled(
1130       IDC_TOGGLE_REQUEST_TABLET_SITE,
1131       CanRequestTabletSite(current_web_contents));
1132
1133   UpdateCommandsForContentRestrictionState();
1134   UpdateCommandsForBookmarkEditing();
1135   UpdateCommandsForFind();
1136   // Update the zoom commands when an active tab is selected.
1137   UpdateCommandsForZoomState();
1138 }
1139
1140 void BrowserCommandController::UpdateCommandsForZoomState() {
1141   WebContents* contents =
1142       browser_->tab_strip_model()->GetActiveWebContents();
1143   if (!contents)
1144     return;
1145   command_updater_.UpdateCommandEnabled(IDC_ZOOM_PLUS,
1146                                         CanZoomIn(contents));
1147   command_updater_.UpdateCommandEnabled(IDC_ZOOM_NORMAL,
1148                                         CanResetZoom(contents));
1149   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MINUS,
1150                                         CanZoomOut(contents));
1151 }
1152
1153 void BrowserCommandController::UpdateCommandsForContentRestrictionState() {
1154   int restrictions = GetContentRestrictions(browser_);
1155
1156   command_updater_.UpdateCommandEnabled(
1157       IDC_COPY, !(restrictions & CONTENT_RESTRICTION_COPY));
1158   command_updater_.UpdateCommandEnabled(
1159       IDC_CUT, !(restrictions & CONTENT_RESTRICTION_CUT));
1160   command_updater_.UpdateCommandEnabled(
1161       IDC_PASTE, !(restrictions & CONTENT_RESTRICTION_PASTE));
1162   UpdateSaveAsState();
1163   UpdatePrintingState();
1164 }
1165
1166 void BrowserCommandController::UpdateCommandsForDevTools() {
1167   bool dev_tools_enabled =
1168       !profile()->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled);
1169   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS,
1170                                         dev_tools_enabled);
1171   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_CONSOLE,
1172                                         dev_tools_enabled);
1173   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_DEVICES,
1174                                         dev_tools_enabled);
1175   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_INSPECT,
1176                                         dev_tools_enabled);
1177   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_TOGGLE,
1178                                         dev_tools_enabled);
1179 }
1180
1181 void BrowserCommandController::UpdateCommandsForBookmarkEditing() {
1182   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_PAGE,
1183                                         CanBookmarkCurrentPage(browser_));
1184   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_ALL_TABS,
1185                                         CanBookmarkAllTabs(browser_));
1186 #if defined(OS_WIN)
1187   command_updater_.UpdateCommandEnabled(IDC_PIN_TO_START_SCREEN, true);
1188 #endif
1189 }
1190
1191 void BrowserCommandController::UpdateCommandsForBookmarkBar() {
1192   command_updater_.UpdateCommandEnabled(
1193       IDC_SHOW_BOOKMARK_BAR,
1194       browser_defaults::bookmarks_enabled && !profile()->IsGuestSession() &&
1195           !profile()->GetPrefs()->IsManagedPreference(
1196               bookmarks::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 }
1283
1284 void BrowserCommandController::UpdatePrintingState() {
1285   bool print_enabled = CanPrint(browser_);
1286   command_updater_.UpdateCommandEnabled(IDC_PRINT, print_enabled);
1287 #if defined(ENABLE_BASIC_PRINTING)
1288   command_updater_.UpdateCommandEnabled(IDC_BASIC_PRINT,
1289                                         CanBasicPrint(browser_));
1290 #endif  // ENABLE_BASIC_PRINTING
1291 }
1292
1293 void BrowserCommandController::UpdateSaveAsState() {
1294   command_updater_.UpdateCommandEnabled(IDC_SAVE_PAGE, CanSavePage(browser_));
1295 }
1296
1297 void BrowserCommandController::UpdateShowSyncState(bool show_main_ui) {
1298   command_updater_.UpdateCommandEnabled(
1299       IDC_SHOW_SYNC_SETUP, show_main_ui && pref_signin_allowed_.GetValue());
1300 }
1301
1302 // static
1303 void BrowserCommandController::UpdateOpenFileState(
1304     CommandUpdater* command_updater) {
1305   bool enabled = true;
1306   PrefService* local_state = g_browser_process->local_state();
1307   if (local_state)
1308     enabled = local_state->GetBoolean(prefs::kAllowFileSelectionDialogs);
1309
1310   command_updater->UpdateCommandEnabled(IDC_OPEN_FILE, enabled);
1311 }
1312
1313 void BrowserCommandController::UpdateReloadStopState(bool is_loading,
1314                                                      bool force) {
1315   window()->UpdateReloadStopState(is_loading, force);
1316   command_updater_.UpdateCommandEnabled(IDC_STOP, is_loading);
1317 }
1318
1319 void BrowserCommandController::UpdateTabRestoreCommandState() {
1320   TabRestoreService* tab_restore_service =
1321       TabRestoreServiceFactory::GetForProfile(profile());
1322   // The command is enabled if the service hasn't loaded yet to trigger loading.
1323   // The command is updated once the load completes.
1324   command_updater_.UpdateCommandEnabled(
1325       IDC_RESTORE_TAB,
1326       tab_restore_service &&
1327       (!tab_restore_service->IsLoaded() ||
1328        GetRestoreTabType(browser_) != TabStripModelDelegate::RESTORE_NONE));
1329 }
1330
1331 void BrowserCommandController::UpdateCommandsForFind() {
1332   TabStripModel* model = browser_->tab_strip_model();
1333   bool enabled = !model->IsTabBlocked(model->active_index()) &&
1334                  !browser_->is_devtools();
1335
1336   command_updater_.UpdateCommandEnabled(IDC_FIND, enabled);
1337   command_updater_.UpdateCommandEnabled(IDC_FIND_NEXT, enabled);
1338   command_updater_.UpdateCommandEnabled(IDC_FIND_PREVIOUS, enabled);
1339 }
1340
1341 void BrowserCommandController::AddInterstitialObservers(WebContents* contents) {
1342   interstitial_observers_.push_back(new InterstitialObserver(this, contents));
1343 }
1344
1345 void BrowserCommandController::RemoveInterstitialObservers(
1346     WebContents* contents) {
1347   for (size_t i = 0; i < interstitial_observers_.size(); i++) {
1348     if (interstitial_observers_[i]->web_contents() != contents)
1349       continue;
1350
1351     delete interstitial_observers_[i];
1352     interstitial_observers_.erase(interstitial_observers_.begin() + i);
1353     return;
1354   }
1355 }
1356
1357 BrowserWindow* BrowserCommandController::window() {
1358   return browser_->window();
1359 }
1360
1361 Profile* BrowserCommandController::profile() {
1362   return browser_->profile();
1363 }
1364
1365 }  // namespace chrome