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