chrome/browser/ui/browser_commands.cc

   1 // Copyright 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_commands.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/metrics/histogram.h"
   9 #include "base/prefs/pref_service.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/app/chrome_command_ids.h"
  12 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  15 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  16 #include "chrome/browser/chrome_notification_types.h"
  17 #include "chrome/browser/chrome_page_zoom.h"
  18 #include "chrome/browser/devtools/devtools_window.h"
  19 #include "chrome/browser/dom_distiller/tab_utils.h"
  20 #include "chrome/browser/favicon/favicon_tab_helper.h"
  21 #include "chrome/browser/lifetime/application_lifetime.h"
  22 #include "chrome/browser/platform_util.h"
  23 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  24 #include "chrome/browser/profiles/profile.h"
  25 #include "chrome/browser/rlz/rlz.h"
  26 #include "chrome/browser/search/search.h"
  27 #include "chrome/browser/sessions/session_service_factory.h"
  28 #include "chrome/browser/sessions/tab_restore_service.h"
  29 #include "chrome/browser/sessions/tab_restore_service_delegate.h"
  30 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  31 #include "chrome/browser/signin/signin_header_helper.h"
  32 #include "chrome/browser/translate/chrome_translate_client.h"
  33 #include "chrome/browser/ui/accelerator_utils.h"
  34 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
  35 #include "chrome/browser/ui/browser.h"
  36 #include "chrome/browser/ui/browser_command_controller.h"
  37 #include "chrome/browser/ui/browser_dialogs.h"
  38 #include "chrome/browser/ui/browser_instant_controller.h"
  39 #include "chrome/browser/ui/browser_tab_restore_service_delegate.h"
  40 #include "chrome/browser/ui/browser_tabstrip.h"
  41 #include "chrome/browser/ui/browser_window.h"
  42 #include "chrome/browser/ui/chrome_pages.h"
  43 #include "chrome/browser/ui/find_bar/find_bar.h"
  44 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
  45 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
  46 #include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
  47 #include "chrome/browser/ui/location_bar/location_bar.h"
  48 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
  49 #include "chrome/browser/ui/search/search_tab_helper.h"
  50 #include "chrome/browser/ui/status_bubble.h"
  51 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
  52 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  53 #include "chrome/browser/ui/zoom/zoom_controller.h"
  54 #include "chrome/browser/upgrade_detector.h"
  55 #include "chrome/common/chrome_switches.h"
  56 #include "chrome/common/chrome_version_info.h"
  57 #include "chrome/common/content_restriction.h"
  58 #include "chrome/common/pref_names.h"
  59 #include "components/bookmarks/browser/bookmark_model.h"
  60 #include "components/bookmarks/browser/bookmark_utils.h"
  61 #include "components/google/core/browser/google_util.h"
  62 #include "components/translate/core/browser/language_state.h"
  63 #include "components/web_modal/popup_manager.h"
  64 #include "content/public/browser/devtools_agent_host.h"
  65 #include "content/public/browser/navigation_controller.h"
  66 #include "content/public/browser/navigation_entry.h"
  67 #include "content/public/browser/notification_service.h"
  68 #include "content/public/browser/page_navigator.h"
  69 #include "content/public/browser/render_view_host.h"
  70 #include "content/public/browser/render_widget_host_view.h"
  71 #include "content/public/browser/user_metrics.h"
  72 #include "content/public/browser/web_contents.h"
  73 #include "content/public/common/page_state.h"
  74 #include "content/public/common/renderer_preferences.h"
  75 #include "content/public/common/url_constants.h"
  76 #include "content/public/common/url_utils.h"
  77 #include "content/public/common/user_agent.h"
  78 #include "net/base/escape.h"
  79 #include "ui/events/keycodes/keyboard_codes.h"
  80
  81 #if defined(OS_WIN)
  82 #include "chrome/browser/ui/metro_pin_tab_helper_win.h"
  83 #endif
  84
  85 #if defined(ENABLE_EXTENSIONS)
  86 #include "chrome/browser/extensions/api/commands/command_service.h"
  87 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
  88 #include "chrome/browser/extensions/tab_helper.h"
  89 #include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
  90 #include "chrome/browser/web_applications/web_app.h"
  91 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
  92 #include "extensions/browser/extension_registry.h"
  93 #include "extensions/browser/extension_system.h"
  94 #include "extensions/common/extension.h"
  95 #include "extensions/common/extension_set.h"
  96 #endif
  97
  98 #if defined(ENABLE_PRINTING)
  99 #if defined(ENABLE_FULL_PRINTING)
 100 #include "chrome/browser/printing/print_preview_dialog_controller.h"
 101 #include "chrome/browser/printing/print_view_manager.h"
 102 #else
 103 #include "chrome/browser/printing/print_view_manager_basic.h"
 104 #endif  // defined(ENABLE_FULL_PRINTING)
 105 #endif  // defined(ENABLE_PRINTING)
 106
 107 namespace {
 108 const char kOsOverrideForTabletSite[] = "Linux; Android 4.0.3";
 109 }
 110
 111 using base::UserMetricsAction;
 112 using content::NavigationController;
 113 using content::NavigationEntry;
 114 using content::OpenURLParams;
 115 using content::Referrer;
 116 using content::SSLStatus;
 117 using content::WebContents;
 118
 119 namespace chrome {
 120 namespace {
 121
 122 bool CanBookmarkCurrentPageInternal(const Browser* browser,
 123                                     bool check_remove_bookmark_ui) {
 124   BookmarkModel* model =
 125       BookmarkModelFactory::GetForProfile(browser->profile());
 126   return browser_defaults::bookmarks_enabled &&
 127       browser->profile()->GetPrefs()->GetBoolean(
 128           bookmarks::prefs::kEditBookmarksEnabled) &&
 129       model && model->loaded() && browser->is_type_tabbed() &&
 130       (!check_remove_bookmark_ui ||
 131            !chrome::ShouldRemoveBookmarkThisPageUI(browser->profile()));
 132 }
 133
 134 #if defined(ENABLE_EXTENSIONS)
 135 bool GetBookmarkOverrideCommand(
 136     Profile* profile,
 137     const extensions::Extension** extension,
 138     extensions::Command* command,
 139     extensions::CommandService::ExtensionCommandType* command_type) {
 140   DCHECK(extension);
 141   DCHECK(command);
 142   DCHECK(command_type);
 143
 144   ui::Accelerator bookmark_page_accelerator =
 145       chrome::GetPrimaryChromeAcceleratorForCommandId(IDC_BOOKMARK_PAGE);
 146   if (bookmark_page_accelerator.key_code() == ui::VKEY_UNKNOWN)
 147     return false;
 148
 149   extensions::CommandService* command_service =
 150       extensions::CommandService::Get(profile);
 151   const extensions::ExtensionSet& extension_set =
 152       extensions::ExtensionRegistry::Get(profile)->enabled_extensions();
 153   for (extensions::ExtensionSet::const_iterator i = extension_set.begin();
 154        i != extension_set.end();
 155        ++i) {
 156     extensions::Command prospective_command;
 157     extensions::CommandService::ExtensionCommandType prospective_command_type;
 158     if (command_service->GetBoundExtensionCommand((*i)->id(),
 159                                                   bookmark_page_accelerator,
 160                                                   &prospective_command,
 161                                                   &prospective_command_type)) {
 162       *extension = i->get();
 163       *command = prospective_command;
 164       *command_type = prospective_command_type;
 165       return true;
 166     }
 167   }
 168   return false;
 169 }
 170 #endif
 171
 172 void BookmarkCurrentPageInternal(Browser* browser) {
 173   content::RecordAction(UserMetricsAction("Star"));
 174
 175   BookmarkModel* model =
 176       BookmarkModelFactory::GetForProfile(browser->profile());
 177   if (!model || !model->loaded())
 178     return;  // Ignore requests until bookmarks are loaded.
 179
 180   GURL url;
 181   base::string16 title;
 182   WebContents* web_contents =
 183       browser->tab_strip_model()->GetActiveWebContents();
 184   GetURLAndTitleToBookmark(web_contents, &url, &title);
 185   bool is_bookmarked_by_any = model->IsBookmarked(url);
 186   if (!is_bookmarked_by_any &&
 187       web_contents->GetBrowserContext()->IsOffTheRecord()) {
 188     // If we're incognito the favicon may not have been saved. Save it now
 189     // so that bookmarks have an icon for the page.
 190     FaviconTabHelper::FromWebContents(web_contents)->SaveFavicon();
 191   }
 192   bool was_bookmarked_by_user = bookmarks::IsBookmarkedByUser(model, url);
 193   bookmarks::AddIfNotBookmarked(model, url, title);
 194   bool is_bookmarked_by_user = bookmarks::IsBookmarkedByUser(model, url);
 195   // Make sure the model actually added a bookmark before showing the star. A
 196   // bookmark isn't created if the url is invalid.
 197   if (browser->window()->IsActive() && is_bookmarked_by_user) {
 198     // Only show the bubble if the window is active, otherwise we may get into
 199     // weird situations where the bubble is deleted as soon as it is shown.
 200     browser->window()->ShowBookmarkBubble(url, was_bookmarked_by_user);
 201   }
 202 }
 203
 204 // Based on |disposition|, creates a new tab as necessary, and returns the
 205 // appropriate tab to navigate.  If that tab is the current tab, reverts the
 206 // location bar contents, since all browser-UI-triggered navigations should
 207 // revert any omnibox edits in the current tab.
 208 WebContents* GetTabAndRevertIfNecessary(Browser* browser,
 209                                         WindowOpenDisposition disposition) {
 210   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
 211   switch (disposition) {
 212     case NEW_FOREGROUND_TAB:
 213     case NEW_BACKGROUND_TAB: {
 214       WebContents* new_tab = current_tab->Clone();
 215       browser->tab_strip_model()->AddWebContents(
 216           new_tab, -1, ui::PAGE_TRANSITION_LINK,
 217           (disposition == NEW_FOREGROUND_TAB) ?
 218               TabStripModel::ADD_ACTIVE : TabStripModel::ADD_NONE);
 219       return new_tab;
 220     }
 221     case NEW_WINDOW: {
 222       WebContents* new_tab = current_tab->Clone();
 223       Browser* new_browser = new Browser(Browser::CreateParams(
 224           browser->profile(), browser->host_desktop_type()));
 225       new_browser->tab_strip_model()->AddWebContents(
 226           new_tab, -1, ui::PAGE_TRANSITION_LINK,
 227           TabStripModel::ADD_ACTIVE);
 228       new_browser->window()->Show();
 229       return new_tab;
 230     }
 231     default:
 232       browser->window()->GetLocationBar()->Revert();
 233       return current_tab;
 234   }
 235 }
 236
 237 void ReloadInternal(Browser* browser,
 238                     WindowOpenDisposition disposition,
 239                     bool ignore_cache) {
 240   // As this is caused by a user action, give the focus to the page.
 241   //
 242   // Also notify RenderViewHostDelegate of the user gesture; this is
 243   // normally done in Browser::Navigate, but a reload bypasses Navigate.
 244   WebContents* new_tab = GetTabAndRevertIfNecessary(browser, disposition);
 245   new_tab->UserGestureDone();
 246   if (!new_tab->FocusLocationBarByDefault())
 247     new_tab->Focus();
 248   if (ignore_cache)
 249     new_tab->GetController().ReloadIgnoringCache(true);
 250   else
 251     new_tab->GetController().Reload(true);
 252 }
 253
 254 bool IsShowingWebContentsModalDialog(Browser* browser) {
 255   WebContents* web_contents =
 256       browser->tab_strip_model()->GetActiveWebContents();
 257   if (!web_contents)
 258     return false;
 259
 260   // In test code we may not have a popup manager.
 261   if (!browser->popup_manager())
 262     return false;
 263
 264   // TODO(gbillock): This is currently called in production by the CanPrint
 265   // method, and may be too restrictive if we allow print preview to overlap.
 266   // Re-assess how to queue print preview after we know more about popup
 267   // management policy.
 268   return browser->popup_manager()->IsWebModalDialogActive(web_contents);
 269 }
 270
 271 bool PrintPreviewShowing(const Browser* browser) {
 272 #if defined(ENABLE_FULL_PRINTING)
 273   WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
 274   printing::PrintPreviewDialogController* controller =
 275       printing::PrintPreviewDialogController::GetInstance();
 276   return controller && (controller->GetPrintPreviewForContents(contents) ||
 277                         controller->is_creating_print_preview_dialog());
 278 #else
 279   return false;
 280 #endif
 281 }
 282
 283 }  // namespace
 284
 285 bool IsCommandEnabled(Browser* browser, int command) {
 286   return browser->command_controller()->command_updater()->IsCommandEnabled(
 287       command);
 288 }
 289
 290 bool SupportsCommand(Browser* browser, int command) {
 291   return browser->command_controller()->command_updater()->SupportsCommand(
 292       command);
 293 }
 294
 295 bool ExecuteCommand(Browser* browser, int command) {
 296   return browser->command_controller()->command_updater()->ExecuteCommand(
 297       command);
 298 }
 299
 300 bool ExecuteCommandWithDisposition(Browser* browser,
 301                                    int command,
 302                                    WindowOpenDisposition disposition) {
 303   return browser->command_controller()->command_updater()->
 304       ExecuteCommandWithDisposition(command, disposition);
 305 }
 306
 307 void UpdateCommandEnabled(Browser* browser, int command, bool enabled) {
 308   browser->command_controller()->command_updater()->UpdateCommandEnabled(
 309       command, enabled);
 310 }
 311
 312 void AddCommandObserver(Browser* browser,
 313                         int command,
 314                         CommandObserver* observer) {
 315   browser->command_controller()->command_updater()->AddCommandObserver(
 316       command, observer);
 317 }
 318
 319 void RemoveCommandObserver(Browser* browser,
 320                            int command,
 321                            CommandObserver* observer) {
 322   browser->command_controller()->command_updater()->RemoveCommandObserver(
 323       command, observer);
 324 }
 325
 326 int GetContentRestrictions(const Browser* browser) {
 327   int content_restrictions = 0;
 328   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
 329   if (current_tab) {
 330     CoreTabHelper* core_tab_helper =
 331         CoreTabHelper::FromWebContents(current_tab);
 332     content_restrictions = core_tab_helper->content_restrictions();
 333     NavigationEntry* last_committed_entry =
 334         current_tab->GetController().GetLastCommittedEntry();
 335     if (!content::IsSavableURL(
 336             last_committed_entry ? last_committed_entry->GetURL() : GURL()) ||
 337         current_tab->ShowingInterstitialPage())
 338       content_restrictions |= CONTENT_RESTRICTION_SAVE;
 339     if (current_tab->ShowingInterstitialPage())
 340       content_restrictions |= CONTENT_RESTRICTION_PRINT;
 341   }
 342   return content_restrictions;
 343 }
 344
 345 void NewEmptyWindow(Profile* profile, HostDesktopType desktop_type) {
 346   bool incognito = profile->IsOffTheRecord();
 347   PrefService* prefs = profile->GetPrefs();
 348   if (incognito) {
 349     if (IncognitoModePrefs::GetAvailability(prefs) ==
 350           IncognitoModePrefs::DISABLED) {
 351       incognito = false;
 352     }
 353   } else if (profile->IsGuestSession() ||
 354       (browser_defaults::kAlwaysOpenIncognitoWindow &&
 355       IncognitoModePrefs::ShouldLaunchIncognito(
 356           *CommandLine::ForCurrentProcess(), prefs))) {
 357     incognito = true;
 358   }
 359
 360   if (incognito) {
 361     content::RecordAction(UserMetricsAction("NewIncognitoWindow"));
 362     OpenEmptyWindow(profile->GetOffTheRecordProfile(), desktop_type);
 363   } else {
 364     content::RecordAction(UserMetricsAction("NewWindow"));
 365     SessionService* session_service =
 366         SessionServiceFactory::GetForProfileForSessionRestore(
 367             profile->GetOriginalProfile());
 368     if (!session_service ||
 369         !session_service->RestoreIfNecessary(std::vector<GURL>())) {
 370       OpenEmptyWindow(profile->GetOriginalProfile(), desktop_type);
 371     }
 372   }
 373 }
 374
 375 Browser* OpenEmptyWindow(Profile* profile, HostDesktopType desktop_type) {
 376   Browser* browser = new Browser(
 377       Browser::CreateParams(Browser::TYPE_TABBED, profile, desktop_type));
 378   AddTabAt(browser, GURL(), -1, true);
 379   browser->window()->Show();
 380   return browser;
 381 }
 382
 383 void OpenWindowWithRestoredTabs(Profile* profile,
 384                                 HostDesktopType host_desktop_type) {
 385   TabRestoreService* service = TabRestoreServiceFactory::GetForProfile(profile);
 386   if (service)
 387     service->RestoreMostRecentEntry(NULL, host_desktop_type);
 388 }
 389
 390 void OpenURLOffTheRecord(Profile* profile,
 391                          const GURL& url,
 392                          chrome::HostDesktopType desktop_type) {
 393   ScopedTabbedBrowserDisplayer displayer(profile->GetOffTheRecordProfile(),
 394                                          desktop_type);
 395   AddSelectedTabWithURL(displayer.browser(), url,
 396       ui::PAGE_TRANSITION_LINK);
 397 }
 398
 399 bool CanGoBack(const Browser* browser) {
 400   return browser->tab_strip_model()->GetActiveWebContents()->
 401       GetController().CanGoBack();
 402 }
 403
 404 void GoBack(Browser* browser, WindowOpenDisposition disposition) {
 405   content::RecordAction(UserMetricsAction("Back"));
 406
 407   if (CanGoBack(browser)) {
 408     WebContents* current_tab =
 409         browser->tab_strip_model()->GetActiveWebContents();
 410     WebContents* new_tab = GetTabAndRevertIfNecessary(browser, disposition);
 411     // If we are on an interstitial page and clone the tab, it won't be copied
 412     // to the new tab, so we don't need to go back.
 413     if ((new_tab == current_tab) || !current_tab->ShowingInterstitialPage())
 414       new_tab->GetController().GoBack();
 415   }
 416 }
 417
 418 bool CanGoForward(const Browser* browser) {
 419   return browser->tab_strip_model()->GetActiveWebContents()->
 420       GetController().CanGoForward();
 421 }
 422
 423 void GoForward(Browser* browser, WindowOpenDisposition disposition) {
 424   content::RecordAction(UserMetricsAction("Forward"));
 425   if (CanGoForward(browser)) {
 426     GetTabAndRevertIfNecessary(browser, disposition)->
 427         GetController().GoForward();
 428   }
 429 }
 430
 431 bool NavigateToIndexWithDisposition(Browser* browser,
 432                                     int index,
 433                                     WindowOpenDisposition disposition) {
 434   NavigationController* controller =
 435       &GetTabAndRevertIfNecessary(browser, disposition)->GetController();
 436   if (index < 0 || index >= controller->GetEntryCount())
 437     return false;
 438   controller->GoToIndex(index);
 439   return true;
 440 }
 441
 442 void Reload(Browser* browser, WindowOpenDisposition disposition) {
 443   content::RecordAction(UserMetricsAction("Reload"));
 444   ReloadInternal(browser, disposition, false);
 445 }
 446
 447 void ReloadIgnoringCache(Browser* browser, WindowOpenDisposition disposition) {
 448   content::RecordAction(UserMetricsAction("ReloadIgnoringCache"));
 449   ReloadInternal(browser, disposition, true);
 450 }
 451
 452 bool CanReload(const Browser* browser) {
 453   return !browser->is_devtools();
 454 }
 455
 456 void Home(Browser* browser, WindowOpenDisposition disposition) {
 457   content::RecordAction(UserMetricsAction("Home"));
 458
 459   std::string extra_headers;
 460 #if defined(ENABLE_RLZ) && !defined(OS_IOS)
 461   // If the home page is a Google home page, add the RLZ header to the request.
 462   PrefService* pref_service = browser->profile()->GetPrefs();
 463   if (pref_service) {
 464     if (google_util::IsGoogleHomePageUrl(
 465         GURL(pref_service->GetString(prefs::kHomePage)))) {
 466       extra_headers = RLZTracker::GetAccessPointHttpHeader(
 467           RLZTracker::ChromeHomePage());
 468     }
 469   }
 470 #endif  // defined(ENABLE_RLZ) && !defined(OS_IOS)
 471
 472   GURL url = browser->profile()->GetHomePage();
 473
 474 #if defined(ENABLE_EXTENSIONS)
 475   // Streamlined hosted apps should return to their launch page when the home
 476   // button is pressed.
 477   if (browser->is_app()) {
 478     const extensions::Extension* extension =
 479         extensions::ExtensionRegistry::Get(browser->profile())
 480             ->GetExtensionById(
 481                 web_app::GetExtensionIdFromApplicationName(browser->app_name()),
 482                 extensions::ExtensionRegistry::EVERYTHING);
 483     if (!extension)
 484       return;
 485
 486     url = extensions::AppLaunchInfo::GetLaunchWebURL(extension);
 487   }
 488 #endif
 489
 490   OpenURLParams params(
 491       url, Referrer(), disposition,
 492       ui::PageTransitionFromInt(
 493           ui::PAGE_TRANSITION_AUTO_BOOKMARK |
 494           ui::PAGE_TRANSITION_HOME_PAGE),
 495       false);
 496   params.extra_headers = extra_headers;
 497   browser->OpenURL(params);
 498 }
 499
 500 void OpenCurrentURL(Browser* browser) {
 501   content::RecordAction(UserMetricsAction("LoadURL"));
 502   LocationBar* location_bar = browser->window()->GetLocationBar();
 503   if (!location_bar)
 504     return;
 505
 506   GURL url(location_bar->GetDestinationURL());
 507
 508   ui::PageTransition page_transition = location_bar->GetPageTransition();
 509   ui::PageTransition page_transition_without_qualifier(
 510       ui::PageTransitionStripQualifier(page_transition));
 511   WindowOpenDisposition open_disposition =
 512       location_bar->GetWindowOpenDisposition();
 513   // A PAGE_TRANSITION_TYPED means the user has typed a URL. We do not want to
 514   // open URLs with instant_controller since in some cases it disregards it
 515   // and performs a search instead. For example, when using CTRL-Enter, the
 516   // location_bar is aware of the URL but instant is not.
 517   // Instant should also not handle PAGE_TRANSITION_RELOAD because its knowledge
 518   // of the omnibox text may be stale if the user focuses in the omnibox and
 519   // presses enter without typing anything.
 520   if (page_transition_without_qualifier != ui::PAGE_TRANSITION_TYPED &&
 521       page_transition_without_qualifier != ui::PAGE_TRANSITION_RELOAD &&
 522       browser->instant_controller() &&
 523       browser->instant_controller()->OpenInstant(open_disposition, url))
 524     return;
 525
 526   NavigateParams params(browser, url, page_transition);
 527   params.disposition = open_disposition;
 528   // Use ADD_INHERIT_OPENER so that all pages opened by the omnibox at least
 529   // inherit the opener. In some cases the tabstrip will determine the group
 530   // should be inherited, in which case the group is inherited instead of the
 531   // opener.
 532   params.tabstrip_add_types =
 533       TabStripModel::ADD_FORCE_INDEX | TabStripModel::ADD_INHERIT_OPENER;
 534   Navigate(&params);
 535
 536 #if defined(ENABLE_EXTENSIONS)
 537   DCHECK(extensions::ExtensionSystem::Get(
 538       browser->profile())->extension_service());
 539   const extensions::Extension* extension =
 540       extensions::ExtensionRegistry::Get(browser->profile())
 541           ->enabled_extensions().GetAppByURL(url);
 542   if (extension) {
 543     CoreAppLauncherHandler::RecordAppLaunchType(
 544         extension_misc::APP_LAUNCH_OMNIBOX_LOCATION,
 545         extension->GetType());
 546   }
 547 #endif
 548 }
 549
 550 void Stop(Browser* browser) {
 551   content::RecordAction(UserMetricsAction("Stop"));
 552   browser->tab_strip_model()->GetActiveWebContents()->Stop();
 553 }
 554
 555 void NewWindow(Browser* browser) {
 556   NewEmptyWindow(browser->profile()->GetOriginalProfile(),
 557                  browser->host_desktop_type());
 558 }
 559
 560 void NewIncognitoWindow(Browser* browser) {
 561   NewEmptyWindow(browser->profile()->GetOffTheRecordProfile(),
 562                  browser->host_desktop_type());
 563 }
 564
 565 void CloseWindow(Browser* browser) {
 566   content::RecordAction(UserMetricsAction("CloseWindow"));
 567   browser->window()->Close();
 568 }
 569
 570 void NewTab(Browser* browser) {
 571   content::RecordAction(UserMetricsAction("NewTab"));
 572   // TODO(asvitkine): This is invoked programmatically from several places.
 573   // Audit the code and change it so that the histogram only gets collected for
 574   // user-initiated commands.
 575   UMA_HISTOGRAM_ENUMERATION("Tab.NewTab", TabStripModel::NEW_TAB_COMMAND,
 576                             TabStripModel::NEW_TAB_ENUM_COUNT);
 577
 578   if (browser->is_type_tabbed()) {
 579     AddTabAt(browser, GURL(), -1, true);
 580     browser->tab_strip_model()->GetActiveWebContents()->RestoreFocus();
 581   } else {
 582     ScopedTabbedBrowserDisplayer displayer(browser->profile(),
 583                                            browser->host_desktop_type());
 584     Browser* b = displayer.browser();
 585     AddTabAt(b, GURL(), -1, true);
 586     b->window()->Show();
 587     // The call to AddBlankTabAt above did not set the focus to the tab as its
 588     // window was not active, so we have to do it explicitly.
 589     // See http://crbug.com/6380.
 590     b->tab_strip_model()->GetActiveWebContents()->RestoreFocus();
 591   }
 592 }
 593
 594 void CloseTab(Browser* browser) {
 595   content::RecordAction(UserMetricsAction("CloseTab_Accelerator"));
 596   browser->tab_strip_model()->CloseSelectedTabs();
 597 }
 598
 599 bool CanZoomIn(content::WebContents* contents) {
 600   ZoomController* zoom_controller = ZoomController::FromWebContents(contents);
 601   return zoom_controller->GetZoomPercent() !=
 602       contents->GetMaximumZoomPercent() + 1;
 603 }
 604
 605 bool CanZoomOut(content::WebContents* contents) {
 606   ZoomController* zoom_controller = ZoomController::FromWebContents(contents);
 607   return zoom_controller->GetZoomPercent() !=
 608       contents->GetMinimumZoomPercent();
 609 }
 610
 611 bool ActualSize(content::WebContents* contents) {
 612   ZoomController* zoom_controller = ZoomController::FromWebContents(contents);
 613   return zoom_controller->GetZoomPercent() != 100.0f;
 614 }
 615
 616 TabStripModelDelegate::RestoreTabType GetRestoreTabType(
 617     const Browser* browser) {
 618   TabRestoreService* service =
 619       TabRestoreServiceFactory::GetForProfile(browser->profile());
 620   if (!service || service->entries().empty())
 621     return TabStripModelDelegate::RESTORE_NONE;
 622   if (service->entries().front()->type == TabRestoreService::WINDOW)
 623     return TabStripModelDelegate::RESTORE_WINDOW;
 624   return TabStripModelDelegate::RESTORE_TAB;
 625 }
 626
 627 void SelectNextTab(Browser* browser) {
 628   content::RecordAction(UserMetricsAction("SelectNextTab"));
 629   browser->tab_strip_model()->SelectNextTab();
 630 }
 631
 632 void SelectPreviousTab(Browser* browser) {
 633   content::RecordAction(UserMetricsAction("SelectPrevTab"));
 634   browser->tab_strip_model()->SelectPreviousTab();
 635 }
 636
 637 void MoveTabNext(Browser* browser) {
 638   content::RecordAction(UserMetricsAction("MoveTabNext"));
 639   browser->tab_strip_model()->MoveTabNext();
 640 }
 641
 642 void MoveTabPrevious(Browser* browser) {
 643   content::RecordAction(UserMetricsAction("MoveTabPrevious"));
 644   browser->tab_strip_model()->MoveTabPrevious();
 645 }
 646
 647 void SelectNumberedTab(Browser* browser, int index) {
 648   if (index < browser->tab_strip_model()->count()) {
 649     content::RecordAction(UserMetricsAction("SelectNumberedTab"));
 650     browser->tab_strip_model()->ActivateTabAt(index, true);
 651   }
 652 }
 653
 654 void SelectLastTab(Browser* browser) {
 655   content::RecordAction(UserMetricsAction("SelectLastTab"));
 656   browser->tab_strip_model()->SelectLastTab();
 657 }
 658
 659 void DuplicateTab(Browser* browser) {
 660   content::RecordAction(UserMetricsAction("Duplicate"));
 661   DuplicateTabAt(browser, browser->tab_strip_model()->active_index());
 662 }
 663
 664 bool CanDuplicateTab(const Browser* browser) {
 665   WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
 666   return contents && contents->GetController().GetLastCommittedEntry();
 667 }
 668
 669 WebContents* DuplicateTabAt(Browser* browser, int index) {
 670   WebContents* contents = browser->tab_strip_model()->GetWebContentsAt(index);
 671   CHECK(contents);
 672   WebContents* contents_dupe = contents->Clone();
 673
 674   bool pinned = false;
 675   if (browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
 676     // If this is a tabbed browser, just create a duplicate tab inside the same
 677     // window next to the tab being duplicated.
 678     int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
 679     pinned = browser->tab_strip_model()->IsTabPinned(index);
 680     int add_types = TabStripModel::ADD_ACTIVE |
 681         TabStripModel::ADD_INHERIT_GROUP |
 682         (pinned ? TabStripModel::ADD_PINNED : 0);
 683     browser->tab_strip_model()->InsertWebContentsAt(
 684         index + 1, contents_dupe, add_types);
 685   } else {
 686     Browser* new_browser = NULL;
 687     if (browser->is_app() && !browser->is_type_popup()) {
 688       new_browser = new Browser(
 689           Browser::CreateParams::CreateForApp(browser->app_name(),
 690                                               browser->is_trusted_source(),
 691                                               gfx::Rect(),
 692                                               browser->profile(),
 693                                               browser->host_desktop_type()));
 694     } else {
 695       new_browser = new Browser(
 696           Browser::CreateParams(browser->type(), browser->profile(),
 697                                 browser->host_desktop_type()));
 698     }
 699     // Preserve the size of the original window. The new window has already
 700     // been given an offset by the OS, so we shouldn't copy the old bounds.
 701     BrowserWindow* new_window = new_browser->window();
 702     new_window->SetBounds(gfx::Rect(new_window->GetRestoredBounds().origin(),
 703                           browser->window()->GetRestoredBounds().size()));
 704
 705     // We need to show the browser now.  Otherwise ContainerWin assumes the
 706     // WebContents is invisible and won't size it.
 707     new_browser->window()->Show();
 708
 709     // The page transition below is only for the purpose of inserting the tab.
 710     new_browser->tab_strip_model()->AddWebContents(
 711         contents_dupe, -1,
 712         ui::PAGE_TRANSITION_LINK,
 713         TabStripModel::ADD_ACTIVE);
 714   }
 715
 716   SessionService* session_service =
 717       SessionServiceFactory::GetForProfileIfExisting(browser->profile());
 718   if (session_service)
 719     session_service->TabRestored(contents_dupe, pinned);
 720   return contents_dupe;
 721 }
 722
 723 bool CanDuplicateTabAt(Browser* browser, int index) {
 724   content::NavigationController& nc =
 725       browser->tab_strip_model()->GetWebContentsAt(index)->GetController();
 726   return nc.GetWebContents() && nc.GetLastCommittedEntry();
 727 }
 728
 729 void ConvertPopupToTabbedBrowser(Browser* browser) {
 730   content::RecordAction(UserMetricsAction("ShowAsTab"));
 731   TabStripModel* tab_strip = browser->tab_strip_model();
 732   WebContents* contents =
 733       tab_strip->DetachWebContentsAt(tab_strip->active_index());
 734   Browser* b = new Browser(Browser::CreateParams(browser->profile(),
 735                                                  browser->host_desktop_type()));
 736   b->tab_strip_model()->AppendWebContents(contents, true);
 737   b->window()->Show();
 738 }
 739
 740 void Exit() {
 741   content::RecordAction(UserMetricsAction("Exit"));
 742   chrome::AttemptUserExit();
 743 }
 744
 745 void BookmarkCurrentPage(Browser* browser) {
 746   DCHECK(!chrome::ShouldRemoveBookmarkThisPageUI(browser->profile()));
 747
 748 #if defined(ENABLE_EXTENSIONS)
 749   const extensions::Extension* extension = NULL;
 750   extensions::Command command;
 751   extensions::CommandService::ExtensionCommandType command_type;
 752   if (GetBookmarkOverrideCommand(browser->profile(),
 753                                  &extension,
 754                                  &command,
 755                                  &command_type)) {
 756     switch (command_type) {
 757       case extensions::CommandService::NAMED:
 758         browser->window()->ExecuteExtensionCommand(extension, command);
 759         break;
 760       case extensions::CommandService::BROWSER_ACTION:
 761       case extensions::CommandService::PAGE_ACTION:
 762         // BookmarkCurrentPage is called through a user gesture, so it is safe
 763         // to grant the active tab permission.
 764         extensions::ExtensionActionAPI::Get(browser->profile())->
 765             ShowExtensionActionPopup(extension, browser, true);
 766         break;
 767     }
 768     return;
 769   }
 770 #endif
 771
 772   BookmarkCurrentPageInternal(browser);
 773 }
 774
 775 bool CanBookmarkCurrentPage(const Browser* browser) {
 776   return CanBookmarkCurrentPageInternal(browser, true);
 777 }
 778
 779 void BookmarkAllTabs(Browser* browser) {
 780   chrome::ShowBookmarkAllTabsDialog(browser);
 781 }
 782
 783 bool CanBookmarkAllTabs(const Browser* browser) {
 784   return browser->tab_strip_model()->count() > 1 &&
 785              !chrome::ShouldRemoveBookmarkOpenPagesUI(browser->profile()) &&
 786              CanBookmarkCurrentPageInternal(browser, false);
 787 }
 788
 789 void Translate(Browser* browser) {
 790   if (!browser->window()->IsActive())
 791     return;
 792
 793   WebContents* web_contents =
 794       browser->tab_strip_model()->GetActiveWebContents();
 795   ChromeTranslateClient* chrome_translate_client =
 796       ChromeTranslateClient::FromWebContents(web_contents);
 797
 798   translate::TranslateStep step = translate::TRANSLATE_STEP_BEFORE_TRANSLATE;
 799   if (chrome_translate_client) {
 800     if (chrome_translate_client->GetLanguageState().translation_pending())
 801       step = translate::TRANSLATE_STEP_TRANSLATING;
 802     else if (chrome_translate_client->GetLanguageState().IsPageTranslated())
 803       step = translate::TRANSLATE_STEP_AFTER_TRANSLATE;
 804   }
 805   browser->window()->ShowTranslateBubble(
 806       web_contents, step, translate::TranslateErrors::NONE, true);
 807 }
 808
 809 void ManagePasswordsForPage(Browser* browser) {
 810   if (!browser->window()->IsActive())
 811     return;
 812
 813   WebContents* web_contents =
 814       browser->tab_strip_model()->GetActiveWebContents();
 815   chrome::ShowManagePasswordsBubble(web_contents);
 816 }
 817
 818 void TogglePagePinnedToStartScreen(Browser* browser) {
 819 #if defined(OS_WIN)
 820   MetroPinTabHelper::FromWebContents(
 821       browser->tab_strip_model()->GetActiveWebContents())->
 822           TogglePinnedToStartScreen();
 823 #endif
 824 }
 825
 826 void SavePage(Browser* browser) {
 827   content::RecordAction(UserMetricsAction("SavePage"));
 828   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
 829   if (current_tab && current_tab->GetContentsMimeType() == "application/pdf")
 830     content::RecordAction(UserMetricsAction("PDF.SavePage"));
 831   current_tab->OnSavePage();
 832 }
 833
 834 bool CanSavePage(const Browser* browser) {
 835   // LocalState can be NULL in tests.
 836   if (g_browser_process->local_state() &&
 837       !g_browser_process->local_state()->GetBoolean(
 838       prefs::kAllowFileSelectionDialogs)) {
 839     return false;
 840   }
 841   return !browser->is_devtools() &&
 842       !(GetContentRestrictions(browser) & CONTENT_RESTRICTION_SAVE);
 843 }
 844
 845 void ShowFindBar(Browser* browser) {
 846   browser->GetFindBarController()->Show();
 847 }
 848
 849 void ShowWebsiteSettings(Browser* browser,
 850                          content::WebContents* web_contents,
 851                          const GURL& url,
 852                          const SSLStatus& ssl) {
 853   browser->window()->ShowWebsiteSettings(
 854       Profile::FromBrowserContext(web_contents->GetBrowserContext()),
 855       web_contents, url, ssl);
 856 }
 857
 858 void Print(Browser* browser) {
 859 #if defined(ENABLE_PRINTING)
 860   WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
 861
 862 #if defined(ENABLE_FULL_PRINTING)
 863   printing::PrintViewManager* print_view_manager =
 864       printing::PrintViewManager::FromWebContents(contents);
 865   if (!browser->profile()->GetPrefs()->GetBoolean(
 866           prefs::kPrintPreviewDisabled)) {
 867     print_view_manager->PrintPreviewNow(false);
 868     return;
 869   }
 870 #else   // ENABLE_FULL_PRINTING
 871   printing::PrintViewManagerBasic* print_view_manager =
 872       printing::PrintViewManagerBasic::FromWebContents(contents);
 873 #endif  // ENABLE_FULL_PRINTING
 874
 875 #if !defined(DISABLE_BASIC_PRINTING)
 876   print_view_manager->PrintNow();
 877 #endif  // DISABLE_BASIC_PRINTING
 878
 879 #endif  // defined(ENABLE_PRINTING)
 880 }
 881
 882 bool CanPrint(Browser* browser) {
 883   // Do not print when printing is disabled via pref or policy.
 884   // Do not print when a constrained window is showing. It's confusing.
 885   // TODO(gbillock): Need to re-assess the call to
 886   // IsShowingWebContentsModalDialog after a popup management policy is
 887   // refined -- we will probably want to just queue the print request, not
 888   // block it.
 889   return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
 890       !(IsShowingWebContentsModalDialog(browser) ||
 891       GetContentRestrictions(browser) & CONTENT_RESTRICTION_PRINT);
 892 }
 893
 894 #if !defined(DISABLE_BASIC_PRINTING)
 895 void BasicPrint(Browser* browser) {
 896 #if defined(ENABLE_FULL_PRINTING)
 897   printing::PrintViewManager* print_view_manager =
 898       printing::PrintViewManager::FromWebContents(
 899           browser->tab_strip_model()->GetActiveWebContents());
 900   print_view_manager->BasicPrint();
 901 #endif
 902 }
 903
 904 bool CanBasicPrint(Browser* browser) {
 905   // If printing is not disabled via pref or policy, it is always possible to
 906   // advanced print when the print preview is visible.  The exception to this
 907   // is under Win8 ash, since showing the advanced print dialog will open it
 908   // modally on the Desktop and hang the browser.
 909 #if defined(OS_WIN)
 910   if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH)
 911     return false;
 912 #endif
 913
 914   return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
 915       (PrintPreviewShowing(browser) || CanPrint(browser));
 916 }
 917 #endif  // !DISABLE_BASIC_PRINTING
 918
 919 void EmailPageLocation(Browser* browser) {
 920   content::RecordAction(UserMetricsAction("EmailPageLocation"));
 921   WebContents* wc = browser->tab_strip_model()->GetActiveWebContents();
 922   DCHECK(wc);
 923
 924   std::string title = net::EscapeQueryParamValue(
 925       base::UTF16ToUTF8(wc->GetTitle()), false);
 926   std::string page_url = net::EscapeQueryParamValue(wc->GetURL().spec(), false);
 927   std::string mailto = std::string("mailto:?subject=Fwd:%20") +
 928       title + "&body=%0A%0A" + page_url;
 929   platform_util::OpenExternal(browser->profile(), GURL(mailto));
 930 }
 931
 932 bool CanEmailPageLocation(const Browser* browser) {
 933   return browser->toolbar_model()->ShouldDisplayURL() &&
 934       browser->tab_strip_model()->GetActiveWebContents()->GetURL().is_valid();
 935 }
 936
 937 void Cut(Browser* browser) {
 938   content::RecordAction(UserMetricsAction("Cut"));
 939   browser->window()->Cut();
 940 }
 941
 942 void Copy(Browser* browser) {
 943   content::RecordAction(UserMetricsAction("Copy"));
 944   browser->window()->Copy();
 945 }
 946
 947 void Paste(Browser* browser) {
 948   content::RecordAction(UserMetricsAction("Paste"));
 949   browser->window()->Paste();
 950 }
 951
 952 void Find(Browser* browser) {
 953   content::RecordAction(UserMetricsAction("Find"));
 954   FindInPage(browser, false, false);
 955 }
 956
 957 void FindNext(Browser* browser) {
 958   content::RecordAction(UserMetricsAction("FindNext"));
 959   FindInPage(browser, true, true);
 960 }
 961
 962 void FindPrevious(Browser* browser) {
 963   content::RecordAction(UserMetricsAction("FindPrevious"));
 964   FindInPage(browser, true, false);
 965 }
 966
 967 void FindInPage(Browser* browser, bool find_next, bool forward_direction) {
 968   ShowFindBar(browser);
 969   if (find_next) {
 970     base::string16 find_text;
 971     FindTabHelper* find_helper = FindTabHelper::FromWebContents(
 972         browser->tab_strip_model()->GetActiveWebContents());
 973 #if defined(OS_MACOSX)
 974     // We always want to search for the current contents of the find bar on
 975     // OS X. For regular profile it's always the current find pboard. For
 976     // Incognito window it's the newest value of the find pboard content and
 977     // user-typed text.
 978     FindBar* find_bar = browser->GetFindBarController()->find_bar();
 979     find_text = find_bar->GetFindText();
 980 #endif
 981     find_helper->StartFinding(find_text, forward_direction, false);
 982   }
 983 }
 984
 985 void Zoom(Browser* browser, content::PageZoom zoom) {
 986   chrome_page_zoom::Zoom(browser->tab_strip_model()->GetActiveWebContents(),
 987                          zoom);
 988 }
 989
 990 void FocusToolbar(Browser* browser) {
 991   content::RecordAction(UserMetricsAction("FocusToolbar"));
 992   browser->window()->FocusToolbar();
 993 }
 994
 995 void FocusLocationBar(Browser* browser) {
 996   content::RecordAction(UserMetricsAction("FocusLocation"));
 997   browser->window()->SetFocusToLocationBar(true);
 998 }
 999
1000 void FocusSearch(Browser* browser) {
1001   // TODO(beng): replace this with FocusLocationBar
1002   content::RecordAction(UserMetricsAction("FocusSearch"));
1003   browser->window()->GetLocationBar()->FocusSearch();
1004 }
1005
1006 void FocusAppMenu(Browser* browser) {
1007   content::RecordAction(UserMetricsAction("FocusAppMenu"));
1008   browser->window()->FocusAppMenu();
1009 }
1010
1011 void FocusBookmarksToolbar(Browser* browser) {
1012   content::RecordAction(UserMetricsAction("FocusBookmarksToolbar"));
1013   browser->window()->FocusBookmarksToolbar();
1014 }
1015
1016 void FocusInfobars(Browser* browser) {
1017   content::RecordAction(UserMetricsAction("FocusInfobars"));
1018   browser->window()->FocusInfobars();
1019 }
1020
1021 void FocusNextPane(Browser* browser) {
1022   content::RecordAction(UserMetricsAction("FocusNextPane"));
1023   browser->window()->RotatePaneFocus(true);
1024 }
1025
1026 void FocusPreviousPane(Browser* browser) {
1027   content::RecordAction(UserMetricsAction("FocusPreviousPane"));
1028   browser->window()->RotatePaneFocus(false);
1029 }
1030
1031 void ToggleDevToolsWindow(Browser* browser, DevToolsToggleAction action) {
1032   if (action.type() == DevToolsToggleAction::kShowConsole)
1033     content::RecordAction(UserMetricsAction("DevTools_ToggleConsole"));
1034   else
1035     content::RecordAction(UserMetricsAction("DevTools_ToggleWindow"));
1036   DevToolsWindow::ToggleDevToolsWindow(browser, action);
1037 }
1038
1039 bool CanOpenTaskManager() {
1040 #if defined(ENABLE_TASK_MANAGER)
1041   return true;
1042 #else
1043   return false;
1044 #endif
1045 }
1046
1047 void OpenTaskManager(Browser* browser) {
1048 #if defined(ENABLE_TASK_MANAGER)
1049   content::RecordAction(UserMetricsAction("TaskManager"));
1050   chrome::ShowTaskManager(browser);
1051 #else
1052   NOTREACHED();
1053 #endif
1054 }
1055
1056 void OpenFeedbackDialog(Browser* browser) {
1057   content::RecordAction(UserMetricsAction("Feedback"));
1058   chrome::ShowFeedbackPage(browser, std::string(), std::string());
1059 }
1060
1061 void ToggleBookmarkBar(Browser* browser) {
1062   content::RecordAction(UserMetricsAction("ShowBookmarksBar"));
1063   ToggleBookmarkBarWhenVisible(browser->profile());
1064 }
1065
1066 void ShowAppMenu(Browser* browser) {
1067   // We record the user metric for this event in WrenchMenu::RunMenu.
1068   browser->window()->ShowAppMenu();
1069 }
1070
1071 void ShowAvatarMenu(Browser* browser) {
1072   browser->window()->ShowAvatarBubbleFromAvatarButton(
1073       BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT,
1074       signin::ManageAccountsParams());
1075 }
1076
1077 void OpenUpdateChromeDialog(Browser* browser) {
1078   if (UpgradeDetector::GetInstance()->is_outdated_install()) {
1079     content::NotificationService::current()->Notify(
1080         chrome::NOTIFICATION_OUTDATED_INSTALL,
1081         content::NotificationService::AllSources(),
1082         content::NotificationService::NoDetails());
1083   } else if (UpgradeDetector::GetInstance()->is_outdated_install_no_au()) {
1084     content::NotificationService::current()->Notify(
1085         chrome::NOTIFICATION_OUTDATED_INSTALL_NO_AU,
1086         content::NotificationService::AllSources(),
1087         content::NotificationService::NoDetails());
1088   } else {
1089     content::RecordAction(UserMetricsAction("UpdateChrome"));
1090     browser->window()->ShowUpdateChromeDialog();
1091   }
1092 }
1093
1094 void ToggleSpeechInput(Browser* browser) {
1095   SearchTabHelper* search_tab_helper =
1096       SearchTabHelper::FromWebContents(
1097           browser->tab_strip_model()->GetActiveWebContents());
1098   // |search_tab_helper| can be null in unit tests.
1099   if (search_tab_helper)
1100     search_tab_helper->ToggleVoiceSearch();
1101 }
1102
1103 void DistillCurrentPage(Browser* browser) {
1104   DistillCurrentPageAndView(browser->tab_strip_model()->GetActiveWebContents());
1105 }
1106
1107 bool CanRequestTabletSite(WebContents* current_tab) {
1108   return current_tab &&
1109       current_tab->GetController().GetLastCommittedEntry() != NULL;
1110 }
1111
1112 bool IsRequestingTabletSite(Browser* browser) {
1113   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
1114   if (!current_tab)
1115     return false;
1116   content::NavigationEntry* entry =
1117       current_tab->GetController().GetLastCommittedEntry();
1118   if (!entry)
1119     return false;
1120   return entry->GetIsOverridingUserAgent();
1121 }
1122
1123 void ToggleRequestTabletSite(Browser* browser) {
1124   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
1125   if (!current_tab)
1126     return;
1127   NavigationController& controller = current_tab->GetController();
1128   NavigationEntry* entry = controller.GetLastCommittedEntry();
1129   if (!entry)
1130     return;
1131   if (entry->GetIsOverridingUserAgent()) {
1132     entry->SetIsOverridingUserAgent(false);
1133   } else {
1134     entry->SetIsOverridingUserAgent(true);
1135     chrome::VersionInfo version_info;
1136     std::string product = version_info.ProductNameAndVersionForUserAgent();
1137     current_tab->SetUserAgentOverride(content::BuildUserAgentFromOSAndProduct(
1138         kOsOverrideForTabletSite, product));
1139   }
1140   controller.ReloadOriginalRequestURL(true);
1141 }
1142
1143 void ToggleFullscreenMode(Browser* browser) {
1144   DCHECK(browser);
1145   browser->fullscreen_controller()->ToggleBrowserFullscreenMode();
1146 }
1147
1148 void ClearCache(Browser* browser) {
1149   BrowsingDataRemover* remover =
1150       BrowsingDataRemover::CreateForUnboundedRange(browser->profile());
1151   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
1152                   BrowsingDataHelper::UNPROTECTED_WEB);
1153   // BrowsingDataRemover takes care of deleting itself when done.
1154 }
1155
1156 bool IsDebuggerAttachedToCurrentTab(Browser* browser) {
1157   WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
1158   return contents ?
1159       content::DevToolsAgentHost::IsDebuggerAttached(contents) : false;
1160 }
1161
1162 void ViewSource(Browser* browser, WebContents* contents) {
1163   DCHECK(contents);
1164
1165   // Use the last committed entry, since the pending entry hasn't loaded yet and
1166   // won't be copied into the cloned tab.
1167   NavigationEntry* entry = contents->GetController().GetLastCommittedEntry();
1168   if (!entry)
1169     return;
1170
1171   ViewSource(browser, contents, entry->GetURL(), entry->GetPageState());
1172 }
1173
1174 void ViewSource(Browser* browser,
1175                 WebContents* contents,
1176                 const GURL& url,
1177                 const content::PageState& page_state) {
1178   content::RecordAction(UserMetricsAction("ViewSource"));
1179   DCHECK(contents);
1180
1181   WebContents* view_source_contents = contents->Clone();
1182   DCHECK(view_source_contents->GetController().CanPruneAllButLastCommitted());
1183   view_source_contents->GetController().PruneAllButLastCommitted();
1184   NavigationEntry* last_committed_entry =
1185       view_source_contents->GetController().GetLastCommittedEntry();
1186   if (!last_committed_entry)
1187     return;
1188
1189   GURL view_source_url =
1190       GURL(content::kViewSourceScheme + std::string(":") + url.spec());
1191   last_committed_entry->SetVirtualURL(view_source_url);
1192
1193   // Do not restore scroller position.
1194   last_committed_entry->SetPageState(page_state.RemoveScrollOffset());
1195
1196   // Do not restore title, derive it from the url.
1197   last_committed_entry->SetTitle(base::string16());
1198
1199   // Now show view-source entry.
1200   if (browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
1201     // If this is a tabbed browser, just create a duplicate tab inside the same
1202     // window next to the tab being duplicated.
1203     int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
1204     int add_types = TabStripModel::ADD_ACTIVE |
1205         TabStripModel::ADD_INHERIT_GROUP;
1206     browser->tab_strip_model()->InsertWebContentsAt(
1207         index + 1,
1208         view_source_contents,
1209         add_types);
1210   } else {
1211     Browser* b = new Browser(
1212         Browser::CreateParams(Browser::TYPE_TABBED, browser->profile(),
1213                               browser->host_desktop_type()));
1214
1215     // Preserve the size of the original window. The new window has already
1216     // been given an offset by the OS, so we shouldn't copy the old bounds.
1217     BrowserWindow* new_window = b->window();
1218     new_window->SetBounds(gfx::Rect(new_window->GetRestoredBounds().origin(),
1219                           browser->window()->GetRestoredBounds().size()));
1220
1221     // We need to show the browser now. Otherwise ContainerWin assumes the
1222     // WebContents is invisible and won't size it.
1223     b->window()->Show();
1224
1225     // The page transition below is only for the purpose of inserting the tab.
1226     b->tab_strip_model()->AddWebContents(view_source_contents, -1,
1227                                          ui::PAGE_TRANSITION_LINK,
1228                                          TabStripModel::ADD_ACTIVE);
1229   }
1230
1231   SessionService* session_service =
1232       SessionServiceFactory::GetForProfileIfExisting(browser->profile());
1233   if (session_service)
1234     session_service->TabRestored(view_source_contents, false);
1235 }
1236
1237 void ViewSelectedSource(Browser* browser) {
1238   ViewSource(browser, browser->tab_strip_model()->GetActiveWebContents());
1239 }
1240
1241 bool CanViewSource(const Browser* browser) {
1242   return !browser->is_devtools() &&
1243       browser->tab_strip_model()->GetActiveWebContents()->GetController().
1244           CanViewSource();
1245 }
1246
1247 #if defined(ENABLE_EXTENSIONS)
1248 void CreateApplicationShortcuts(Browser* browser) {
1249   content::RecordAction(UserMetricsAction("CreateShortcut"));
1250   extensions::TabHelper::FromWebContents(
1251       browser->tab_strip_model()->GetActiveWebContents())->
1252           CreateApplicationShortcuts();
1253 }
1254
1255 void CreateBookmarkAppFromCurrentWebContents(Browser* browser) {
1256   content::RecordAction(UserMetricsAction("CreateHostedApp"));
1257   extensions::TabHelper::FromWebContents(
1258       browser->tab_strip_model()->GetActiveWebContents())->
1259           CreateHostedAppFromWebContents();
1260 }
1261
1262 bool CanCreateApplicationShortcuts(const Browser* browser) {
1263   return extensions::TabHelper::FromWebContents(
1264       browser->tab_strip_model()->GetActiveWebContents())->
1265           CanCreateApplicationShortcuts();
1266 }
1267
1268 bool CanCreateBookmarkApp(const Browser* browser) {
1269   return extensions::TabHelper::FromWebContents(
1270              browser->tab_strip_model()->GetActiveWebContents())
1271       ->CanCreateBookmarkApp();
1272 }
1273
1274 void ConvertTabToAppWindow(Browser* browser,
1275                            content::WebContents* contents) {
1276   const GURL& url = contents->GetController().GetLastCommittedEntry()->GetURL();
1277   std::string app_name = web_app::GenerateApplicationNameFromURL(url);
1278
1279   int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
1280   if (index >= 0)
1281     browser->tab_strip_model()->DetachWebContentsAt(index);
1282
1283   Browser* app_browser = new Browser(
1284       Browser::CreateParams::CreateForApp(app_name,
1285                                           true /* trusted_source */,
1286                                           gfx::Rect(),
1287                                           browser->profile(),
1288                                           browser->host_desktop_type()));
1289   app_browser->tab_strip_model()->AppendWebContents(contents, true);
1290
1291   contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
1292   contents->GetRenderViewHost()->SyncRendererPrefs();
1293   app_browser->window()->Show();
1294 }
1295 #endif  // defined(ENABLE_EXTENSIONS)
1296
1297 }  // namespace chrome