src/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_state_delegate.h"
  65 #include "ash/shell.h"
  66 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
  67 #include "chrome/browser/ui/browser_commands_chromeos.h"
  68 #endif
  69
  70 using content::NavigationEntry;
  71 using content::NavigationController;
  72 using content::WebContents;
  73
  74 namespace {
  75
  76 enum WindowState {
  77   // Not in fullscreen mode.
  78   WINDOW_STATE_NOT_FULLSCREEN,
  79
  80   // Fullscreen mode, occupying the whole screen.
  81   WINDOW_STATE_FULLSCREEN,
  82
  83   // Fullscreen mode for metro snap, occupying the full height and 20% of
  84   // the screen width.
  85   WINDOW_STATE_METRO_SNAP,
  86 };
  87
  88 // Returns |true| if entry has an internal chrome:// URL, |false| otherwise.
  89 bool HasInternalURL(const NavigationEntry* entry) {
  90   if (!entry)
  91     return false;
  92
  93   // Check the |virtual_url()| first. This catches regular chrome:// URLs
  94   // including URLs that were rewritten (such as chrome://bookmarks).
  95   if (entry->GetVirtualURL().SchemeIs(chrome::kChromeUIScheme))
  96     return true;
  97
  98   // If the |virtual_url()| isn't a chrome:// URL, check if it's actually
  99   // view-source: of a chrome:// URL.
 100   if (entry->GetVirtualURL().SchemeIs(content::kViewSourceScheme))
 101     return entry->GetURL().SchemeIs(chrome::kChromeUIScheme);
 102
 103   return false;
 104 }
 105
 106 #if defined(OS_WIN)
 107 // Windows 8 specific helper class to manage DefaultBrowserWorker. It does the
 108 // following asynchronous actions in order:
 109 // 1- Check that chrome is the default browser
 110 // 2- If we are the default, restart chrome in metro and exit
 111 // 3- If not the default browser show the 'select default browser' system dialog
 112 // 4- When dialog dismisses check again who got made the default
 113 // 5- If we are the default then restart chrome in metro and exit
 114 // 6- If we are not the default exit.
 115 //
 116 // Note: this class deletes itself.
 117 class SwitchToMetroUIHandler
 118     : public ShellIntegration::DefaultWebClientObserver {
 119  public:
 120   SwitchToMetroUIHandler()
 121       : default_browser_worker_(
 122             new ShellIntegration::DefaultBrowserWorker(this)),
 123         first_check_(true) {
 124     default_browser_worker_->StartCheckIsDefault();
 125   }
 126
 127   virtual ~SwitchToMetroUIHandler() {
 128     default_browser_worker_->ObserverDestroyed();
 129   }
 130
 131  private:
 132   virtual void SetDefaultWebClientUIState(
 133       ShellIntegration::DefaultWebClientUIState state) OVERRIDE {
 134     switch (state) {
 135       case ShellIntegration::STATE_PROCESSING:
 136         return;
 137       case ShellIntegration::STATE_UNKNOWN :
 138         break;
 139       case ShellIntegration::STATE_IS_DEFAULT:
 140         chrome::AttemptRestartToMetroMode();
 141         break;
 142       case ShellIntegration::STATE_NOT_DEFAULT:
 143         if (first_check_) {
 144           default_browser_worker_->StartSetAsDefault();
 145           return;
 146         }
 147         break;
 148       default:
 149         NOTREACHED();
 150     }
 151     delete this;
 152   }
 153
 154   virtual void OnSetAsDefaultConcluded(bool success)  OVERRIDE {
 155     if (!success) {
 156       delete this;
 157       return;
 158     }
 159     first_check_ = false;
 160     default_browser_worker_->StartCheckIsDefault();
 161   }
 162
 163   virtual bool IsInteractiveSetDefaultPermitted() OVERRIDE {
 164     return true;
 165   }
 166
 167   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
 168   bool first_check_;
 169
 170   DISALLOW_COPY_AND_ASSIGN(SwitchToMetroUIHandler);
 171 };
 172 #endif  // defined(OS_WIN)
 173
 174 }  // namespace
 175
 176 namespace chrome {
 177
 178 ///////////////////////////////////////////////////////////////////////////////
 179 // BrowserCommandController, public:
 180
 181 BrowserCommandController::BrowserCommandController(
 182     Browser* browser,
 183     ProfileManager* profile_manager)
 184     : browser_(browser),
 185       profile_manager_(profile_manager),
 186       command_updater_(this),
 187       block_command_execution_(false),
 188       last_blocked_command_id_(-1),
 189       last_blocked_command_disposition_(CURRENT_TAB) {
 190   if (profile_manager_)
 191     profile_manager_->GetProfileInfoCache().AddObserver(this);
 192   browser_->tab_strip_model()->AddObserver(this);
 193   PrefService* local_state = g_browser_process->local_state();
 194   if (local_state) {
 195     local_pref_registrar_.Init(local_state);
 196     local_pref_registrar_.Add(
 197         prefs::kAllowFileSelectionDialogs,
 198         base::Bind(
 199             &BrowserCommandController::UpdateCommandsForFileSelectionDialogs,
 200             base::Unretained(this)));
 201   }
 202
 203   profile_pref_registrar_.Init(profile()->GetPrefs());
 204   profile_pref_registrar_.Add(
 205       prefs::kDevToolsDisabled,
 206       base::Bind(&BrowserCommandController::UpdateCommandsForDevTools,
 207                  base::Unretained(this)));
 208   profile_pref_registrar_.Add(
 209       prefs::kEditBookmarksEnabled,
 210       base::Bind(&BrowserCommandController::UpdateCommandsForBookmarkEditing,
 211                  base::Unretained(this)));
 212   profile_pref_registrar_.Add(
 213       prefs::kShowBookmarkBar,
 214       base::Bind(&BrowserCommandController::UpdateCommandsForBookmarkBar,
 215                  base::Unretained(this)));
 216   profile_pref_registrar_.Add(
 217       prefs::kIncognitoModeAvailability,
 218       base::Bind(
 219           &BrowserCommandController::UpdateCommandsForIncognitoAvailability,
 220           base::Unretained(this)));
 221   profile_pref_registrar_.Add(
 222       prefs::kPrintingEnabled,
 223       base::Bind(&BrowserCommandController::UpdatePrintingState,
 224                  base::Unretained(this)));
 225 #if !defined(OS_MACOSX)
 226   profile_pref_registrar_.Add(
 227       prefs::kFullscreenAllowed,
 228       base::Bind(&BrowserCommandController::UpdateCommandsForFullscreenMode,
 229                  base::Unretained(this)));
 230 #endif
 231   pref_signin_allowed_.Init(
 232       prefs::kSigninAllowed,
 233       profile()->GetOriginalProfile()->GetPrefs(),
 234       base::Bind(&BrowserCommandController::OnSigninAllowedPrefChange,
 235                  base::Unretained(this)));
 236
 237   InitCommandState();
 238
 239   TabRestoreService* tab_restore_service =
 240       TabRestoreServiceFactory::GetForProfile(profile());
 241   if (tab_restore_service) {
 242     tab_restore_service->AddObserver(this);
 243     TabRestoreServiceChanged(tab_restore_service);
 244   }
 245 }
 246
 247 BrowserCommandController::~BrowserCommandController() {
 248   // TabRestoreService may have been shutdown by the time we get here. Don't
 249   // trigger creating it.
 250   TabRestoreService* tab_restore_service =
 251       TabRestoreServiceFactory::GetForProfileIfExisting(profile());
 252   if (tab_restore_service)
 253     tab_restore_service->RemoveObserver(this);
 254   profile_pref_registrar_.RemoveAll();
 255   local_pref_registrar_.RemoveAll();
 256   browser_->tab_strip_model()->RemoveObserver(this);
 257   if (profile_manager_)
 258     profile_manager_->GetProfileInfoCache().RemoveObserver(this);
 259 }
 260
 261 bool BrowserCommandController::IsReservedCommandOrKey(
 262     int command_id,
 263     const content::NativeWebKeyboardEvent& event) {
 264   // In Apps mode, no keys are reserved.
 265   if (browser_->is_app())
 266     return false;
 267
 268 #if defined(OS_CHROMEOS)
 269   // On Chrome OS, the top row of keys are mapped to browser actions like
 270   // back/forward or refresh. We don't want web pages to be able to change the
 271   // behavior of these keys.  Ash handles F4 and up; this leaves us needing to
 272   // reserve browser back/forward and refresh here.
 273   ui::KeyboardCode key_code =
 274     static_cast<ui::KeyboardCode>(event.windowsKeyCode);
 275   if ((key_code == ui::VKEY_BROWSER_BACK && command_id == IDC_BACK) ||
 276       (key_code == ui::VKEY_BROWSER_FORWARD && command_id == IDC_FORWARD) ||
 277       (key_code == ui::VKEY_BROWSER_REFRESH && command_id == IDC_RELOAD)) {
 278     return true;
 279   }
 280 #endif
 281
 282   if (window()->IsFullscreen() && command_id == IDC_FULLSCREEN)
 283     return true;
 284   return command_id == IDC_CLOSE_TAB ||
 285          command_id == IDC_CLOSE_WINDOW ||
 286          command_id == IDC_NEW_INCOGNITO_WINDOW ||
 287          command_id == IDC_NEW_TAB ||
 288          command_id == IDC_NEW_WINDOW ||
 289          command_id == IDC_RESTORE_TAB ||
 290          command_id == IDC_SELECT_NEXT_TAB ||
 291          command_id == IDC_SELECT_PREVIOUS_TAB ||
 292          command_id == IDC_TABPOSE ||
 293          command_id == IDC_EXIT;
 294 }
 295
 296 void BrowserCommandController::SetBlockCommandExecution(bool block) {
 297   block_command_execution_ = block;
 298   if (block) {
 299     last_blocked_command_id_ = -1;
 300     last_blocked_command_disposition_ = CURRENT_TAB;
 301   }
 302 }
 303
 304 int BrowserCommandController::GetLastBlockedCommand(
 305     WindowOpenDisposition* disposition) {
 306   if (disposition)
 307     *disposition = last_blocked_command_disposition_;
 308   return last_blocked_command_id_;
 309 }
 310
 311 void BrowserCommandController::TabStateChanged() {
 312   UpdateCommandsForTabState();
 313 }
 314
 315 void BrowserCommandController::ContentRestrictionsChanged() {
 316   UpdateCommandsForContentRestrictionState();
 317 }
 318
 319 void BrowserCommandController::FullscreenStateChanged() {
 320   UpdateCommandsForFullscreenMode();
 321 }
 322
 323 void BrowserCommandController::PrintingStateChanged() {
 324   UpdatePrintingState();
 325 }
 326
 327 void BrowserCommandController::LoadingStateChanged(bool is_loading,
 328                                                    bool force) {
 329   UpdateReloadStopState(is_loading, force);
 330 }
 331
 332 ////////////////////////////////////////////////////////////////////////////////
 333 // BrowserCommandController, CommandUpdaterDelegate implementation:
 334
 335 void BrowserCommandController::ExecuteCommandWithDisposition(
 336     int id,
 337     WindowOpenDisposition disposition) {
 338   // No commands are enabled if there is not yet any selected tab.
 339   // TODO(pkasting): It seems like we should not need this, because either
 340   // most/all commands should not have been enabled yet anyway or the ones that
 341   // are enabled should be global, or safe themselves against having no selected
 342   // tab.  However, Ben says he tried removing this before and got lots of
 343   // crashes, e.g. from Windows sending WM_COMMANDs at random times during
 344   // window construction.  This probably could use closer examination someday.
 345   if (browser_->tab_strip_model()->active_index() == TabStripModel::kNoTab)
 346     return;
 347
 348   DCHECK(command_updater_.IsCommandEnabled(id)) << "Invalid/disabled command "
 349                                                 << id;
 350
 351   // If command execution is blocked then just record the command and return.
 352   if (block_command_execution_) {
 353     // We actually only allow no more than one blocked command, otherwise some
 354     // commands maybe lost.
 355     DCHECK_EQ(last_blocked_command_id_, -1);
 356     last_blocked_command_id_ = id;
 357     last_blocked_command_disposition_ = disposition;
 358     return;
 359   }
 360
 361   // The order of commands in this switch statement must match the function
 362   // declaration order in browser.h!
 363   switch (id) {
 364     // Navigation commands
 365     case IDC_BACK:
 366       GoBack(browser_, disposition);
 367       break;
 368     case IDC_FORWARD:
 369       GoForward(browser_, disposition);
 370       break;
 371     case IDC_RELOAD:
 372       Reload(browser_, disposition);
 373       break;
 374     case IDC_RELOAD_CLEARING_CACHE:
 375       ClearCache(browser_);
 376       // FALL THROUGH
 377     case IDC_RELOAD_IGNORING_CACHE:
 378       ReloadIgnoringCache(browser_, disposition);
 379       break;
 380     case IDC_HOME:
 381       Home(browser_, disposition);
 382       break;
 383     case IDC_OPEN_CURRENT_URL:
 384       OpenCurrentURL(browser_);
 385       break;
 386     case IDC_STOP:
 387       Stop(browser_);
 388       break;
 389
 390      // Window management commands
 391     case IDC_NEW_WINDOW:
 392       NewWindow(browser_);
 393       break;
 394     case IDC_NEW_INCOGNITO_WINDOW:
 395       NewIncognitoWindow(browser_);
 396       break;
 397     case IDC_CLOSE_WINDOW:
 398       content::RecordAction(base::UserMetricsAction("CloseWindowByKey"));
 399       CloseWindow(browser_);
 400       break;
 401     case IDC_NEW_TAB:
 402       NewTab(browser_);
 403       break;
 404     case IDC_CLOSE_TAB:
 405       content::RecordAction(base::UserMetricsAction("CloseTabByKey"));
 406       CloseTab(browser_);
 407       break;
 408     case IDC_SELECT_NEXT_TAB:
 409       content::RecordAction(base::UserMetricsAction("Accel_SelectNextTab"));
 410       SelectNextTab(browser_);
 411       break;
 412     case IDC_SELECT_PREVIOUS_TAB:
 413       content::RecordAction(
 414           base::UserMetricsAction("Accel_SelectPreviousTab"));
 415       SelectPreviousTab(browser_);
 416       break;
 417     case IDC_TABPOSE:
 418       OpenTabpose(browser_);
 419       break;
 420     case IDC_MOVE_TAB_NEXT:
 421       MoveTabNext(browser_);
 422       break;
 423     case IDC_MOVE_TAB_PREVIOUS:
 424       MoveTabPrevious(browser_);
 425       break;
 426     case IDC_SELECT_TAB_0:
 427     case IDC_SELECT_TAB_1:
 428     case IDC_SELECT_TAB_2:
 429     case IDC_SELECT_TAB_3:
 430     case IDC_SELECT_TAB_4:
 431     case IDC_SELECT_TAB_5:
 432     case IDC_SELECT_TAB_6:
 433     case IDC_SELECT_TAB_7:
 434       SelectNumberedTab(browser_, id - IDC_SELECT_TAB_0);
 435       break;
 436     case IDC_SELECT_LAST_TAB:
 437       SelectLastTab(browser_);
 438       break;
 439     case IDC_DUPLICATE_TAB:
 440       DuplicateTab(browser_);
 441       break;
 442     case IDC_RESTORE_TAB:
 443       RestoreTab(browser_);
 444       break;
 445     case IDC_SHOW_AS_TAB:
 446       ConvertPopupToTabbedBrowser(browser_);
 447       break;
 448     case IDC_FULLSCREEN:
 449 #if defined(OS_MACOSX)
 450       chrome::ToggleFullscreenWithChromeOrFallback(browser_);
 451 #else
 452       chrome::ToggleFullscreenMode(browser_);
 453 #endif
 454       break;
 455
 456 #if defined(USE_ASH)
 457     case IDC_TOGGLE_ASH_DESKTOP:
 458       chrome::ToggleAshDesktop();
 459       break;
 460     case IDC_MINIMIZE_WINDOW:
 461       content::RecordAction(
 462           base::UserMetricsAction("Accel_Toggle_Minimized_M"));
 463       ash::accelerators::ToggleMinimized();
 464       break;
 465     // If Ash needs many more commands here we should implement a general
 466     // mechanism to pass accelerators back into Ash. http://crbug.com/285308
 467 #endif
 468
 469 #if defined(OS_CHROMEOS)
 470     case IDC_VISIT_DESKTOP_OF_LRU_USER_2:
 471     case IDC_VISIT_DESKTOP_OF_LRU_USER_3: {
 472         ash::MultiProfileUMA::RecordTeleportAction(
 473             ash::MultiProfileUMA::TELEPORT_WINDOW_CAPTION_MENU);
 474         // When running the multi user mode on Chrome OS, windows can "visit"
 475         // another user's desktop.
 476         const std::string& user_id =
 477             ash::Shell::GetInstance()->session_state_delegate()->GetUserID(
 478                 IDC_VISIT_DESKTOP_OF_LRU_USER_2 == id ? 1 : 2);
 479         chrome::MultiUserWindowManager::GetInstance()->ShowWindowForUser(
 480             browser_->window()->GetNativeWindow(),
 481             user_id);
 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_WIN8_DESKTOP_RESTART:
 495       if (!VerifyMetroSwitchForApps(window()->GetNativeWindow(), id))
 496         break;
 497
 498       chrome::AttemptRestartToDesktopMode();
 499       content::RecordAction(base::UserMetricsAction("Win8DesktopRestart"));
 500       break;
 501     case IDC_WIN8_METRO_RESTART:
 502       if (!VerifyMetroSwitchForApps(window()->GetNativeWindow(), id))
 503         break;
 504
 505       // SwitchToMetroUIHandler deletes itself.
 506       new SwitchToMetroUIHandler;
 507       content::RecordAction(base::UserMetricsAction("Win8MetroRestart"));
 508       break;
 509 #endif
 510
 511 #if defined(OS_MACOSX)
 512     case IDC_PRESENTATION_MODE:
 513       chrome::ToggleFullscreenMode(browser_);
 514       break;
 515 #endif
 516     case IDC_EXIT:
 517       Exit();
 518       break;
 519
 520     // Page-related commands
 521     case IDC_SAVE_PAGE:
 522       SavePage(browser_);
 523       break;
 524     case IDC_BOOKMARK_PAGE:
 525       BookmarkCurrentPage(browser_);
 526       break;
 527     case IDC_BOOKMARK_PAGE_FROM_STAR:
 528       BookmarkCurrentPageFromStar(browser_);
 529       break;
 530     case IDC_PIN_TO_START_SCREEN:
 531       TogglePagePinnedToStartScreen(browser_);
 532       break;
 533     case IDC_BOOKMARK_ALL_TABS:
 534       BookmarkAllTabs(browser_);
 535       break;
 536     case IDC_VIEW_SOURCE:
 537       ViewSelectedSource(browser_);
 538       break;
 539     case IDC_EMAIL_PAGE_LOCATION:
 540       EmailPageLocation(browser_);
 541       break;
 542     case IDC_PRINT:
 543       Print(browser_);
 544       break;
 545     case IDC_ADVANCED_PRINT:
 546       content::RecordAction(base::UserMetricsAction("Accel_Advanced_Print"));
 547       AdvancedPrint(browser_);
 548       break;
 549     case IDC_PRINT_TO_DESTINATION:
 550       PrintToDestination(browser_);
 551       break;
 552     case IDC_TRANSLATE_PAGE:
 553       Translate(browser_);
 554       break;
 555     case IDC_ENCODING_AUTO_DETECT:
 556       browser_->ToggleEncodingAutoDetect();
 557       break;
 558     case IDC_ENCODING_UTF8:
 559     case IDC_ENCODING_UTF16LE:
 560     case IDC_ENCODING_ISO88591:
 561     case IDC_ENCODING_WINDOWS1252:
 562     case IDC_ENCODING_GBK:
 563     case IDC_ENCODING_GB18030:
 564     case IDC_ENCODING_BIG5HKSCS:
 565     case IDC_ENCODING_BIG5:
 566     case IDC_ENCODING_KOREAN:
 567     case IDC_ENCODING_SHIFTJIS:
 568     case IDC_ENCODING_ISO2022JP:
 569     case IDC_ENCODING_EUCJP:
 570     case IDC_ENCODING_THAI:
 571     case IDC_ENCODING_ISO885915:
 572     case IDC_ENCODING_MACINTOSH:
 573     case IDC_ENCODING_ISO88592:
 574     case IDC_ENCODING_WINDOWS1250:
 575     case IDC_ENCODING_ISO88595:
 576     case IDC_ENCODING_WINDOWS1251:
 577     case IDC_ENCODING_KOI8R:
 578     case IDC_ENCODING_KOI8U:
 579     case IDC_ENCODING_ISO88597:
 580     case IDC_ENCODING_WINDOWS1253:
 581     case IDC_ENCODING_ISO88594:
 582     case IDC_ENCODING_ISO885913:
 583     case IDC_ENCODING_WINDOWS1257:
 584     case IDC_ENCODING_ISO88593:
 585     case IDC_ENCODING_ISO885910:
 586     case IDC_ENCODING_ISO885914:
 587     case IDC_ENCODING_ISO885916:
 588     case IDC_ENCODING_WINDOWS1254:
 589     case IDC_ENCODING_ISO88596:
 590     case IDC_ENCODING_WINDOWS1256:
 591     case IDC_ENCODING_ISO88598:
 592     case IDC_ENCODING_ISO88598I:
 593     case IDC_ENCODING_WINDOWS1255:
 594     case IDC_ENCODING_WINDOWS1258:
 595       browser_->OverrideEncoding(id);
 596       break;
 597
 598     // Clipboard commands
 599     case IDC_CUT:
 600       Cut(browser_);
 601       break;
 602     case IDC_COPY:
 603       Copy(browser_);
 604       break;
 605     case IDC_PASTE:
 606       Paste(browser_);
 607       break;
 608
 609     // Find-in-page
 610     case IDC_FIND:
 611       Find(browser_);
 612       break;
 613     case IDC_FIND_NEXT:
 614       FindNext(browser_);
 615       break;
 616     case IDC_FIND_PREVIOUS:
 617       FindPrevious(browser_);
 618       break;
 619
 620     // Zoom
 621     case IDC_ZOOM_PLUS:
 622       Zoom(browser_, content::PAGE_ZOOM_IN);
 623       break;
 624     case IDC_ZOOM_NORMAL:
 625       Zoom(browser_, content::PAGE_ZOOM_RESET);
 626       break;
 627     case IDC_ZOOM_MINUS:
 628       Zoom(browser_, content::PAGE_ZOOM_OUT);
 629       break;
 630
 631     // Focus various bits of UI
 632     case IDC_FOCUS_TOOLBAR:
 633       content::RecordAction(base::UserMetricsAction("Accel_Focus_Toolbar"));
 634       FocusToolbar(browser_);
 635       break;
 636     case IDC_FOCUS_LOCATION:
 637       content::RecordAction(base::UserMetricsAction("Accel_Focus_Location"));
 638       FocusLocationBar(browser_);
 639       break;
 640     case IDC_FOCUS_SEARCH:
 641       content::RecordAction(base::UserMetricsAction("Accel_Focus_Search"));
 642       FocusSearch(browser_);
 643       break;
 644     case IDC_FOCUS_MENU_BAR:
 645       FocusAppMenu(browser_);
 646       break;
 647     case IDC_FOCUS_BOOKMARKS:
 648       content::RecordAction(
 649           base::UserMetricsAction("Accel_Focus_Bookmarks"));
 650       FocusBookmarksToolbar(browser_);
 651       break;
 652     case IDC_FOCUS_INFOBARS:
 653       FocusInfobars(browser_);
 654       break;
 655     case IDC_FOCUS_NEXT_PANE:
 656       FocusNextPane(browser_);
 657       break;
 658     case IDC_FOCUS_PREVIOUS_PANE:
 659       FocusPreviousPane(browser_);
 660       break;
 661
 662     // Show various bits of UI
 663     case IDC_OPEN_FILE:
 664       browser_->OpenFile();
 665       break;
 666     case IDC_CREATE_SHORTCUTS:
 667       CreateApplicationShortcuts(browser_);
 668       break;
 669     case IDC_CREATE_HOSTED_APP:
 670       CreateHostedAppFromCurrentWebContents(browser_);
 671       break;
 672     case IDC_DEV_TOOLS:
 673       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Show());
 674       break;
 675     case IDC_DEV_TOOLS_CONSOLE:
 676       ToggleDevToolsWindow(browser_, DevToolsToggleAction::ShowConsole());
 677       break;
 678     case IDC_DEV_TOOLS_DEVICES:
 679       InspectUI::InspectDevices(browser_);
 680       break;
 681     case IDC_DEV_TOOLS_INSPECT:
 682       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Inspect());
 683       break;
 684     case IDC_DEV_TOOLS_TOGGLE:
 685       ToggleDevToolsWindow(browser_, DevToolsToggleAction::Toggle());
 686       break;
 687     case IDC_TASK_MANAGER:
 688       OpenTaskManager(browser_);
 689       break;
 690 #if defined(OS_CHROMEOS)
 691     case IDC_TAKE_SCREENSHOT:
 692       TakeScreenshot();
 693       break;
 694 #endif
 695 #if defined(GOOGLE_CHROME_BUILD)
 696     case IDC_FEEDBACK:
 697       OpenFeedbackDialog(browser_);
 698       break;
 699 #endif
 700     case IDC_SHOW_BOOKMARK_BAR:
 701       ToggleBookmarkBar(browser_);
 702       break;
 703     case IDC_PROFILING_ENABLED:
 704       Profiling::Toggle();
 705       break;
 706
 707     case IDC_SHOW_BOOKMARK_MANAGER:
 708       ShowBookmarkManager(browser_);
 709       break;
 710     case IDC_SHOW_APP_MENU:
 711       content::RecordAction(base::UserMetricsAction("Accel_Show_App_Menu"));
 712       ShowAppMenu(browser_);
 713       break;
 714     case IDC_SHOW_AVATAR_MENU:
 715       ShowAvatarMenu(browser_);
 716       break;
 717     case IDC_SHOW_HISTORY:
 718       ShowHistory(browser_);
 719       break;
 720     case IDC_SHOW_DOWNLOADS:
 721       ShowDownloads(browser_);
 722       break;
 723     case IDC_MANAGE_EXTENSIONS:
 724       ShowExtensions(browser_, std::string());
 725       break;
 726     case IDC_OPTIONS:
 727       ShowSettings(browser_);
 728       break;
 729     case IDC_EDIT_SEARCH_ENGINES:
 730       ShowSearchEngineSettings(browser_);
 731       break;
 732     case IDC_VIEW_PASSWORDS:
 733       ShowPasswordManager(browser_);
 734       break;
 735     case IDC_CLEAR_BROWSING_DATA:
 736       ShowClearBrowsingDataDialog(browser_);
 737       break;
 738     case IDC_IMPORT_SETTINGS:
 739       ShowImportDialog(browser_);
 740       break;
 741     case IDC_TOGGLE_REQUEST_TABLET_SITE:
 742       ToggleRequestTabletSite(browser_);
 743       break;
 744     case IDC_ABOUT:
 745       ShowAboutChrome(browser_);
 746       break;
 747     case IDC_UPGRADE_DIALOG:
 748       OpenUpdateChromeDialog(browser_);
 749       break;
 750     case IDC_VIEW_INCOMPATIBILITIES:
 751       ShowConflicts(browser_);
 752       break;
 753     case IDC_HELP_PAGE_VIA_KEYBOARD:
 754       ShowHelp(browser_, HELP_SOURCE_KEYBOARD);
 755       break;
 756     case IDC_HELP_PAGE_VIA_MENU:
 757       ShowHelp(browser_, HELP_SOURCE_MENU);
 758       break;
 759     case IDC_SHOW_SIGNIN:
 760       ShowBrowserSignin(browser_, signin::SOURCE_MENU);
 761       break;
 762     case IDC_TOGGLE_SPEECH_INPUT:
 763       ToggleSpeechInput(browser_);
 764       break;
 765
 766     default:
 767       LOG(WARNING) << "Received Unimplemented Command: " << id;
 768       break;
 769   }
 770 }
 771
 772 ////////////////////////////////////////////////////////////////////////////////
 773 // BrowserCommandController, ProfileInfoCacheObserver implementation:
 774
 775 void BrowserCommandController::OnProfileAdded(
 776     const base::FilePath& profile_path) {
 777   UpdateCommandsForMultipleProfiles();
 778 }
 779
 780 void BrowserCommandController::OnProfileWasRemoved(
 781     const base::FilePath& profile_path,
 782     const base::string16& profile_name) {
 783   UpdateCommandsForMultipleProfiles();
 784 }
 785
 786 ////////////////////////////////////////////////////////////////////////////////
 787 // BrowserCommandController, SigninPrefObserver implementation:
 788
 789 void BrowserCommandController::OnSigninAllowedPrefChange() {
 790   // For unit tests, we don't have a window.
 791   if (!window())
 792     return;
 793   UpdateShowSyncState(IsShowingMainUI());
 794 }
 795
 796 // BrowserCommandController, TabStripModelObserver implementation:
 797
 798 void BrowserCommandController::TabInsertedAt(WebContents* contents,
 799                                              int index,
 800                                              bool foreground) {
 801   AddInterstitialObservers(contents);
 802 }
 803
 804 void BrowserCommandController::TabDetachedAt(WebContents* contents, int index) {
 805   RemoveInterstitialObservers(contents);
 806 }
 807
 808 void BrowserCommandController::TabReplacedAt(TabStripModel* tab_strip_model,
 809                                              WebContents* old_contents,
 810                                              WebContents* new_contents,
 811                                              int index) {
 812   RemoveInterstitialObservers(old_contents);
 813   AddInterstitialObservers(new_contents);
 814 }
 815
 816 void BrowserCommandController::TabBlockedStateChanged(
 817     content::WebContents* contents,
 818     int index) {
 819   PrintingStateChanged();
 820   FullscreenStateChanged();
 821   UpdateCommandsForFind();
 822 }
 823
 824 ////////////////////////////////////////////////////////////////////////////////
 825 // BrowserCommandController, TabRestoreServiceObserver implementation:
 826
 827 void BrowserCommandController::TabRestoreServiceChanged(
 828     TabRestoreService* service) {
 829   command_updater_.UpdateCommandEnabled(
 830       IDC_RESTORE_TAB,
 831       GetRestoreTabType(browser_) != TabStripModelDelegate::RESTORE_NONE);
 832 }
 833
 834 void BrowserCommandController::TabRestoreServiceDestroyed(
 835     TabRestoreService* service) {
 836   service->RemoveObserver(this);
 837 }
 838
 839 ////////////////////////////////////////////////////////////////////////////////
 840 // BrowserCommandController, private:
 841
 842 class BrowserCommandController::InterstitialObserver
 843     : public content::WebContentsObserver {
 844  public:
 845   InterstitialObserver(BrowserCommandController* controller,
 846                        content::WebContents* web_contents)
 847       : WebContentsObserver(web_contents),
 848         controller_(controller) {
 849   }
 850
 851   using content::WebContentsObserver::web_contents;
 852
 853   virtual void DidAttachInterstitialPage() OVERRIDE {
 854     controller_->UpdateCommandsForTabState();
 855   }
 856
 857   virtual void DidDetachInterstitialPage() OVERRIDE {
 858     controller_->UpdateCommandsForTabState();
 859   }
 860
 861  private:
 862   BrowserCommandController* controller_;
 863
 864   DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
 865 };
 866
 867 bool BrowserCommandController::IsShowingMainUI() {
 868   bool should_hide_ui = window() && window()->ShouldHideUIForFullscreen();
 869   return browser_->is_type_tabbed() && !should_hide_ui;
 870 }
 871
 872 void BrowserCommandController::InitCommandState() {
 873   // All browser commands whose state isn't set automagically some other way
 874   // (like Back & Forward with initial page load) must have their state
 875   // initialized here, otherwise they will be forever disabled.
 876
 877   // Navigation commands
 878   command_updater_.UpdateCommandEnabled(IDC_RELOAD, true);
 879   command_updater_.UpdateCommandEnabled(IDC_RELOAD_IGNORING_CACHE, true);
 880   command_updater_.UpdateCommandEnabled(IDC_RELOAD_CLEARING_CACHE, true);
 881
 882   // Window management commands
 883   command_updater_.UpdateCommandEnabled(IDC_CLOSE_WINDOW, true);
 884   command_updater_.UpdateCommandEnabled(IDC_NEW_TAB, true);
 885   command_updater_.UpdateCommandEnabled(IDC_CLOSE_TAB, true);
 886   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB, true);
 887   command_updater_.UpdateCommandEnabled(IDC_RESTORE_TAB, false);
 888 #if defined(OS_WIN) && defined(USE_ASH)
 889   if (browser_->host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH)
 890     command_updater_.UpdateCommandEnabled(IDC_EXIT, true);
 891 #else
 892   command_updater_.UpdateCommandEnabled(IDC_EXIT, true);
 893 #endif
 894   command_updater_.UpdateCommandEnabled(IDC_DEBUG_FRAME_TOGGLE, true);
 895 #if defined(OS_WIN) && defined(USE_ASH) && !defined(NDEBUG)
 896   if (base::win::GetVersion() < base::win::VERSION_WIN8 &&
 897       chrome::HOST_DESKTOP_TYPE_NATIVE != chrome::HOST_DESKTOP_TYPE_ASH)
 898     command_updater_.UpdateCommandEnabled(IDC_TOGGLE_ASH_DESKTOP, true);
 899 #endif
 900 #if defined(USE_ASH)
 901   command_updater_.UpdateCommandEnabled(IDC_MINIMIZE_WINDOW, true);
 902 #endif
 903 #if defined(OS_CHROMEOS)
 904   command_updater_.UpdateCommandEnabled(IDC_VISIT_DESKTOP_OF_LRU_USER_2, true);
 905   command_updater_.UpdateCommandEnabled(IDC_VISIT_DESKTOP_OF_LRU_USER_3, true);
 906 #endif
 907
 908   // Page-related commands
 909   command_updater_.UpdateCommandEnabled(IDC_EMAIL_PAGE_LOCATION, true);
 910   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_PAGE_FROM_STAR, true);
 911   command_updater_.UpdateCommandEnabled(IDC_ENCODING_AUTO_DETECT, true);
 912   command_updater_.UpdateCommandEnabled(IDC_ENCODING_UTF8, true);
 913   command_updater_.UpdateCommandEnabled(IDC_ENCODING_UTF16LE, true);
 914   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88591, true);
 915   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1252, true);
 916   command_updater_.UpdateCommandEnabled(IDC_ENCODING_GBK, true);
 917   command_updater_.UpdateCommandEnabled(IDC_ENCODING_GB18030, true);
 918   command_updater_.UpdateCommandEnabled(IDC_ENCODING_BIG5HKSCS, true);
 919   command_updater_.UpdateCommandEnabled(IDC_ENCODING_BIG5, true);
 920   command_updater_.UpdateCommandEnabled(IDC_ENCODING_THAI, true);
 921   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOREAN, true);
 922   command_updater_.UpdateCommandEnabled(IDC_ENCODING_SHIFTJIS, true);
 923   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO2022JP, true);
 924   command_updater_.UpdateCommandEnabled(IDC_ENCODING_EUCJP, true);
 925   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885915, true);
 926   command_updater_.UpdateCommandEnabled(IDC_ENCODING_MACINTOSH, true);
 927   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88592, true);
 928   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1250, true);
 929   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88595, true);
 930   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1251, true);
 931   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOI8R, true);
 932   command_updater_.UpdateCommandEnabled(IDC_ENCODING_KOI8U, true);
 933   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88597, true);
 934   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1253, true);
 935   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88594, true);
 936   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885913, true);
 937   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1257, true);
 938   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88593, true);
 939   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885910, true);
 940   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885914, true);
 941   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO885916, true);
 942   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1254, true);
 943   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88596, true);
 944   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1256, true);
 945   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88598, true);
 946   command_updater_.UpdateCommandEnabled(IDC_ENCODING_ISO88598I, true);
 947   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1255, true);
 948   command_updater_.UpdateCommandEnabled(IDC_ENCODING_WINDOWS1258, true);
 949
 950   // Zoom
 951   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MENU, true);
 952   command_updater_.UpdateCommandEnabled(IDC_ZOOM_PLUS, true);
 953   command_updater_.UpdateCommandEnabled(IDC_ZOOM_NORMAL, true);
 954   command_updater_.UpdateCommandEnabled(IDC_ZOOM_MINUS, true);
 955
 956   // Show various bits of UI
 957   UpdateOpenFileState(&command_updater_);
 958   command_updater_.UpdateCommandEnabled(IDC_CREATE_SHORTCUTS, false);
 959   UpdateCommandsForDevTools();
 960   command_updater_.UpdateCommandEnabled(IDC_TASK_MANAGER, CanOpenTaskManager());
 961   command_updater_.UpdateCommandEnabled(IDC_SHOW_HISTORY,
 962                                         !profile()->IsGuestSession());
 963   command_updater_.UpdateCommandEnabled(IDC_SHOW_DOWNLOADS, true);
 964   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_KEYBOARD, true);
 965   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_MENU, true);
 966   command_updater_.UpdateCommandEnabled(IDC_BOOKMARKS_MENU,
 967                                         !profile()->IsGuestSession());
 968   command_updater_.UpdateCommandEnabled(IDC_RECENT_TABS_MENU,
 969                                         !profile()->IsGuestSession() &&
 970                                         !profile()->IsOffTheRecord());
 971 #if defined(OS_CHROMEOS)
 972   command_updater_.UpdateCommandEnabled(IDC_TAKE_SCREENSHOT, true);
 973 #endif
 974
 975   UpdateShowSyncState(true);
 976
 977   // Initialize other commands based on the window type.
 978   bool normal_window = browser_->is_type_tabbed();
 979
 980   // Navigation commands
 981   command_updater_.UpdateCommandEnabled(IDC_HOME, normal_window);
 982
 983   // Window management commands
 984   command_updater_.UpdateCommandEnabled(IDC_SELECT_NEXT_TAB, normal_window);
 985   command_updater_.UpdateCommandEnabled(IDC_SELECT_PREVIOUS_TAB,
 986                                         normal_window);
 987   command_updater_.UpdateCommandEnabled(IDC_MOVE_TAB_NEXT, normal_window);
 988   command_updater_.UpdateCommandEnabled(IDC_MOVE_TAB_PREVIOUS, normal_window);
 989   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_0, normal_window);
 990   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_1, normal_window);
 991   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_2, normal_window);
 992   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_3, normal_window);
 993   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_4, normal_window);
 994   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_5, normal_window);
 995   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_6, normal_window);
 996   command_updater_.UpdateCommandEnabled(IDC_SELECT_TAB_7, normal_window);
 997   command_updater_.UpdateCommandEnabled(IDC_SELECT_LAST_TAB, normal_window);
 998 #if defined(OS_WIN)
 999 #if !defined(USE_AURA)
1000   const bool metro_mode = base::win::IsMetroProcess();
1001 #else
1002   const bool metro_mode =
1003      browser_->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH ?
1004          true : false;
1005 #endif
1006   command_updater_.UpdateCommandEnabled(IDC_METRO_SNAP_ENABLE, metro_mode);
1007   command_updater_.UpdateCommandEnabled(IDC_METRO_SNAP_DISABLE, metro_mode);
1008   int restart_mode = metro_mode ?
1009       IDC_WIN8_DESKTOP_RESTART : IDC_WIN8_METRO_RESTART;
1010   command_updater_.UpdateCommandEnabled(restart_mode, normal_window);
1011 #endif
1012   command_updater_.UpdateCommandEnabled(IDC_TABPOSE, normal_window);
1013
1014   // Show various bits of UI
1015   command_updater_.UpdateCommandEnabled(IDC_CLEAR_BROWSING_DATA, normal_window);
1016
1017   // The upgrade entry and the view incompatibility entry should always be
1018   // enabled. Whether they are visible is a separate matter determined on menu
1019   // show.
1020   command_updater_.UpdateCommandEnabled(IDC_UPGRADE_DIALOG, true);
1021   command_updater_.UpdateCommandEnabled(IDC_VIEW_INCOMPATIBILITIES, true);
1022
1023   // Toggle speech input
1024   command_updater_.UpdateCommandEnabled(IDC_TOGGLE_SPEECH_INPUT, true);
1025
1026   // Initialize other commands whose state changes based on fullscreen mode.
1027   UpdateCommandsForFullscreenMode();
1028
1029   UpdateCommandsForContentRestrictionState();
1030
1031   UpdateCommandsForBookmarkEditing();
1032
1033   UpdateCommandsForIncognitoAvailability();
1034 }
1035
1036 // static
1037 void BrowserCommandController::UpdateSharedCommandsForIncognitoAvailability(
1038     CommandUpdater* command_updater,
1039     Profile* profile) {
1040   IncognitoModePrefs::Availability incognito_availability =
1041       IncognitoModePrefs::GetAvailability(profile->GetPrefs());
1042   command_updater->UpdateCommandEnabled(
1043       IDC_NEW_WINDOW,
1044       incognito_availability != IncognitoModePrefs::FORCED);
1045   command_updater->UpdateCommandEnabled(
1046       IDC_NEW_INCOGNITO_WINDOW,
1047       incognito_availability != IncognitoModePrefs::DISABLED);
1048
1049   // Bookmark manager and settings page/subpages are forced to open in normal
1050   // mode. For this reason we disable these commands when incognito is forced.
1051   const bool command_enabled =
1052       incognito_availability != IncognitoModePrefs::FORCED;
1053   command_updater->UpdateCommandEnabled(
1054       IDC_SHOW_BOOKMARK_MANAGER,
1055       browser_defaults::bookmarks_enabled && command_enabled);
1056   ExtensionService* extension_service = profile->GetExtensionService();
1057   bool enable_extensions =
1058       extension_service && extension_service->extensions_enabled();
1059   command_updater->UpdateCommandEnabled(IDC_MANAGE_EXTENSIONS,
1060                                         enable_extensions && command_enabled);
1061
1062   command_updater->UpdateCommandEnabled(IDC_IMPORT_SETTINGS, command_enabled);
1063   command_updater->UpdateCommandEnabled(IDC_OPTIONS, command_enabled);
1064   command_updater->UpdateCommandEnabled(IDC_SHOW_SIGNIN, command_enabled);
1065 }
1066
1067 void BrowserCommandController::UpdateCommandsForIncognitoAvailability() {
1068   UpdateSharedCommandsForIncognitoAvailability(&command_updater_, profile());
1069
1070   if (!IsShowingMainUI()) {
1071     command_updater_.UpdateCommandEnabled(IDC_IMPORT_SETTINGS, false);
1072     command_updater_.UpdateCommandEnabled(IDC_OPTIONS, false);
1073   }
1074 }
1075
1076 void BrowserCommandController::UpdateCommandsForTabState() {
1077   WebContents* current_web_contents =
1078       browser_->tab_strip_model()->GetActiveWebContents();
1079   if (!current_web_contents)  // May be NULL during tab restore.
1080     return;
1081
1082   // Navigation commands
1083   command_updater_.UpdateCommandEnabled(IDC_BACK, CanGoBack(browser_));
1084   command_updater_.UpdateCommandEnabled(IDC_FORWARD, CanGoForward(browser_));
1085   command_updater_.UpdateCommandEnabled(IDC_RELOAD, CanReload(browser_));
1086   command_updater_.UpdateCommandEnabled(IDC_RELOAD_IGNORING_CACHE,
1087                                         CanReload(browser_));
1088   command_updater_.UpdateCommandEnabled(IDC_RELOAD_CLEARING_CACHE,
1089                                         CanReload(browser_));
1090
1091   // Window management commands
1092   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB,
1093       !browser_->is_app() && CanDuplicateTab(browser_));
1094
1095   // Page-related commands
1096   window()->SetStarredState(
1097       BookmarkTabHelper::FromWebContents(current_web_contents)->is_starred());
1098   window()->ZoomChangedForActiveTab(false);
1099   command_updater_.UpdateCommandEnabled(IDC_VIEW_SOURCE,
1100                                         CanViewSource(browser_));
1101   command_updater_.UpdateCommandEnabled(IDC_EMAIL_PAGE_LOCATION,
1102                                         CanEmailPageLocation(browser_));
1103   if (browser_->is_devtools())
1104     command_updater_.UpdateCommandEnabled(IDC_OPEN_FILE, false);
1105
1106   // Changing the encoding is not possible on Chrome-internal webpages.
1107   NavigationController& nc = current_web_contents->GetController();
1108   bool is_chrome_internal = HasInternalURL(nc.GetActiveEntry()) ||
1109       current_web_contents->ShowingInterstitialPage();
1110   command_updater_.UpdateCommandEnabled(IDC_ENCODING_MENU,
1111       !is_chrome_internal && current_web_contents->IsSavable());
1112
1113   // Show various bits of UI
1114   // TODO(pinkerton): Disable app-mode in the model until we implement it
1115   // on the Mac. Be sure to remove both ifdefs. http://crbug.com/13148
1116 #if !defined(OS_MACOSX)
1117   command_updater_.UpdateCommandEnabled(
1118       IDC_CREATE_SHORTCUTS,
1119       CanCreateApplicationShortcuts(browser_));
1120   command_updater_.UpdateCommandEnabled(
1121       IDC_CREATE_HOSTED_APP,
1122       CanCreateApplicationShortcuts(browser_));
1123 #endif
1124
1125   command_updater_.UpdateCommandEnabled(
1126       IDC_TOGGLE_REQUEST_TABLET_SITE,
1127       CanRequestTabletSite(current_web_contents));
1128
1129   UpdateCommandsForContentRestrictionState();
1130   UpdateCommandsForBookmarkEditing();
1131   UpdateCommandsForFind();
1132 }
1133
1134 void BrowserCommandController::UpdateCommandsForContentRestrictionState() {
1135   int restrictions = GetContentRestrictions(browser_);
1136
1137   command_updater_.UpdateCommandEnabled(
1138       IDC_COPY, !(restrictions & CONTENT_RESTRICTION_COPY));
1139   command_updater_.UpdateCommandEnabled(
1140       IDC_CUT, !(restrictions & CONTENT_RESTRICTION_CUT));
1141   command_updater_.UpdateCommandEnabled(
1142       IDC_PASTE, !(restrictions & CONTENT_RESTRICTION_PASTE));
1143   UpdateSaveAsState();
1144   UpdatePrintingState();
1145 }
1146
1147 void BrowserCommandController::UpdateCommandsForDevTools() {
1148   bool dev_tools_enabled =
1149       !profile()->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled);
1150   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS,
1151                                         dev_tools_enabled);
1152   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_CONSOLE,
1153                                         dev_tools_enabled);
1154   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_DEVICES,
1155                                         dev_tools_enabled);
1156   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_INSPECT,
1157                                         dev_tools_enabled);
1158   command_updater_.UpdateCommandEnabled(IDC_DEV_TOOLS_TOGGLE,
1159                                         dev_tools_enabled);
1160 }
1161
1162 void BrowserCommandController::UpdateCommandsForBookmarkEditing() {
1163   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_PAGE,
1164                                         CanBookmarkCurrentPage(browser_));
1165   command_updater_.UpdateCommandEnabled(IDC_BOOKMARK_ALL_TABS,
1166                                         CanBookmarkAllTabs(browser_));
1167   command_updater_.UpdateCommandEnabled(IDC_PIN_TO_START_SCREEN,
1168                                         true);
1169 }
1170
1171 void BrowserCommandController::UpdateCommandsForBookmarkBar() {
1172   command_updater_.UpdateCommandEnabled(IDC_SHOW_BOOKMARK_BAR,
1173       browser_defaults::bookmarks_enabled &&
1174       !profile()->GetPrefs()->IsManagedPreference(prefs::kShowBookmarkBar) &&
1175       IsShowingMainUI());
1176 }
1177
1178 void BrowserCommandController::UpdateCommandsForFileSelectionDialogs() {
1179   UpdateSaveAsState();
1180   UpdateOpenFileState(&command_updater_);
1181 }
1182
1183 void BrowserCommandController::UpdateCommandsForFullscreenMode() {
1184   WindowState window_state = WINDOW_STATE_NOT_FULLSCREEN;
1185   if (window() && window()->IsFullscreen()) {
1186     window_state = WINDOW_STATE_FULLSCREEN;
1187 #if defined(OS_WIN)
1188     if (window()->IsInMetroSnapMode())
1189       window_state = WINDOW_STATE_METRO_SNAP;
1190 #endif
1191   }
1192   bool show_main_ui = IsShowingMainUI();
1193   bool main_not_fullscreen =
1194       show_main_ui && window_state == WINDOW_STATE_NOT_FULLSCREEN;
1195
1196   // Navigation commands
1197   command_updater_.UpdateCommandEnabled(IDC_OPEN_CURRENT_URL, show_main_ui);
1198
1199   // Window management commands
1200   command_updater_.UpdateCommandEnabled(
1201       IDC_SHOW_AS_TAB,
1202       !browser_->is_type_tabbed() &&
1203           window_state == WINDOW_STATE_NOT_FULLSCREEN);
1204
1205   // Focus various bits of UI
1206   command_updater_.UpdateCommandEnabled(IDC_FOCUS_TOOLBAR, show_main_ui);
1207   command_updater_.UpdateCommandEnabled(IDC_FOCUS_LOCATION, show_main_ui);
1208   command_updater_.UpdateCommandEnabled(IDC_FOCUS_SEARCH, show_main_ui);
1209   command_updater_.UpdateCommandEnabled(
1210       IDC_FOCUS_MENU_BAR, main_not_fullscreen);
1211   command_updater_.UpdateCommandEnabled(
1212       IDC_FOCUS_NEXT_PANE, main_not_fullscreen);
1213   command_updater_.UpdateCommandEnabled(
1214       IDC_FOCUS_PREVIOUS_PANE, main_not_fullscreen);
1215   command_updater_.UpdateCommandEnabled(
1216       IDC_FOCUS_BOOKMARKS, main_not_fullscreen);
1217   command_updater_.UpdateCommandEnabled(
1218       IDC_FOCUS_INFOBARS, main_not_fullscreen);
1219
1220   // Show various bits of UI
1221   command_updater_.UpdateCommandEnabled(IDC_DEVELOPER_MENU, show_main_ui);
1222 #if defined(GOOGLE_CHROME_BUILD)
1223   command_updater_.UpdateCommandEnabled(IDC_FEEDBACK, show_main_ui);
1224 #endif
1225   UpdateShowSyncState(show_main_ui);
1226
1227   // Settings page/subpages are forced to open in normal mode. We disable these
1228   // commands when incognito is forced.
1229   const bool options_enabled = show_main_ui &&
1230       IncognitoModePrefs::GetAvailability(
1231           profile()->GetPrefs()) != IncognitoModePrefs::FORCED;
1232   command_updater_.UpdateCommandEnabled(IDC_OPTIONS, options_enabled);
1233   command_updater_.UpdateCommandEnabled(IDC_IMPORT_SETTINGS, options_enabled);
1234
1235   command_updater_.UpdateCommandEnabled(IDC_EDIT_SEARCH_ENGINES, show_main_ui);
1236   command_updater_.UpdateCommandEnabled(IDC_VIEW_PASSWORDS, show_main_ui);
1237   command_updater_.UpdateCommandEnabled(IDC_ABOUT, show_main_ui);
1238   command_updater_.UpdateCommandEnabled(IDC_SHOW_APP_MENU, show_main_ui);
1239 #if defined (ENABLE_PROFILING) && !defined(NO_TCMALLOC)
1240   command_updater_.UpdateCommandEnabled(IDC_PROFILING_ENABLED, show_main_ui);
1241 #endif
1242
1243   // Disable explicit fullscreen toggling when in metro snap mode.
1244   bool fullscreen_enabled = window_state != WINDOW_STATE_METRO_SNAP;
1245 #if defined(OS_MACOSX)
1246   // The Mac implementation doesn't support switching to fullscreen while
1247   // a tab modal dialog is displayed.
1248   int tab_index = chrome::IndexOfFirstBlockedTab(browser_->tab_strip_model());
1249   bool has_blocked_tab = tab_index != browser_->tab_strip_model()->count();
1250   fullscreen_enabled &= !has_blocked_tab;
1251 #else
1252   if (window_state == WINDOW_STATE_NOT_FULLSCREEN &&
1253       !profile()->GetPrefs()->GetBoolean(prefs::kFullscreenAllowed)) {
1254     // Disable toggling into fullscreen mode if disallowed by pref.
1255     fullscreen_enabled = false;
1256   }
1257 #endif
1258
1259   command_updater_.UpdateCommandEnabled(IDC_FULLSCREEN, fullscreen_enabled);
1260   command_updater_.UpdateCommandEnabled(IDC_PRESENTATION_MODE,
1261                                         fullscreen_enabled);
1262
1263   UpdateCommandsForBookmarkBar();
1264   UpdateCommandsForMultipleProfiles();
1265 }
1266
1267 void BrowserCommandController::UpdateCommandsForMultipleProfiles() {
1268   bool is_regular_or_guest_session =
1269       profile()->IsGuestSession() || !profile()->IsOffTheRecord();
1270   bool enable = IsShowingMainUI() &&
1271       is_regular_or_guest_session &&
1272       profile_manager_ &&
1273       AvatarMenu::ShouldShowAvatarMenu();
1274   command_updater_.UpdateCommandEnabled(IDC_SHOW_AVATAR_MENU,
1275                                         enable);
1276 }
1277
1278 void BrowserCommandController::UpdatePrintingState() {
1279   bool print_enabled = CanPrint(browser_);
1280   command_updater_.UpdateCommandEnabled(IDC_PRINT, print_enabled);
1281   command_updater_.UpdateCommandEnabled(IDC_ADVANCED_PRINT,
1282                                         CanAdvancedPrint(browser_));
1283   command_updater_.UpdateCommandEnabled(IDC_PRINT_TO_DESTINATION,
1284                                         print_enabled);
1285 #if defined(OS_WIN)
1286   HMODULE metro_module = base::win::GetMetroModule();
1287   if (metro_module != NULL) {
1288     typedef void (*MetroEnablePrinting)(BOOL);
1289     MetroEnablePrinting metro_enable_printing =
1290         reinterpret_cast<MetroEnablePrinting>(
1291             ::GetProcAddress(metro_module, "MetroEnablePrinting"));
1292     if (metro_enable_printing)
1293       metro_enable_printing(print_enabled);
1294   }
1295 #endif
1296 }
1297
1298 void BrowserCommandController::UpdateSaveAsState() {
1299   command_updater_.UpdateCommandEnabled(IDC_SAVE_PAGE, CanSavePage(browser_));
1300 }
1301
1302 void BrowserCommandController::UpdateShowSyncState(bool show_main_ui) {
1303   command_updater_.UpdateCommandEnabled(
1304       IDC_SHOW_SYNC_SETUP, show_main_ui && pref_signin_allowed_.GetValue());
1305 }
1306
1307 // static
1308 void BrowserCommandController::UpdateOpenFileState(
1309     CommandUpdater* command_updater) {
1310   bool enabled = true;
1311   PrefService* local_state = g_browser_process->local_state();
1312   if (local_state)
1313     enabled = local_state->GetBoolean(prefs::kAllowFileSelectionDialogs);
1314
1315   command_updater->UpdateCommandEnabled(IDC_OPEN_FILE, enabled);
1316 }
1317
1318 void BrowserCommandController::UpdateReloadStopState(bool is_loading,
1319                                                      bool force) {
1320   window()->UpdateReloadStopState(is_loading, force);
1321   command_updater_.UpdateCommandEnabled(IDC_STOP, is_loading);
1322 }
1323
1324 void BrowserCommandController::UpdateCommandsForFind() {
1325   TabStripModel* model = browser_->tab_strip_model();
1326   bool enabled = !model->IsTabBlocked(model->active_index()) &&
1327                  !browser_->is_devtools();
1328
1329   command_updater_.UpdateCommandEnabled(IDC_FIND, enabled);
1330   command_updater_.UpdateCommandEnabled(IDC_FIND_NEXT, enabled);
1331   command_updater_.UpdateCommandEnabled(IDC_FIND_PREVIOUS, enabled);
1332 }
1333
1334 void BrowserCommandController::AddInterstitialObservers(WebContents* contents) {
1335   interstitial_observers_.push_back(new InterstitialObserver(this, contents));
1336 }
1337
1338 void BrowserCommandController::RemoveInterstitialObservers(
1339     WebContents* contents) {
1340   for (size_t i = 0; i < interstitial_observers_.size(); i++) {
1341     if (interstitial_observers_[i]->web_contents() != contents)
1342       continue;
1343
1344     delete interstitial_observers_[i];
1345     interstitial_observers_.erase(interstitial_observers_.begin() + i);
1346     return;
1347   }
1348 }
1349
1350 BrowserWindow* BrowserCommandController::window() {
1351   return browser_->window();
1352 }
1353
1354 Profile* BrowserCommandController::profile() {
1355   return browser_->profile();
1356 }
1357
1358 }  // namespace chrome