chrome/browser/ui/browser.h

   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 #ifndef CHROME_BROWSER_UI_BROWSER_H_
   6 #define CHROME_BROWSER_UI_BROWSER_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/basictypes.h"
  14 #include "base/compiler_specific.h"
  15 #include "base/gtest_prod_util.h"
  16 #include "base/memory/scoped_ptr.h"
  17 #include "base/memory/weak_ptr.h"
  18 #include "base/prefs/pref_change_registrar.h"
  19 #include "base/prefs/pref_member.h"
  20 #include "base/scoped_observer.h"
  21 #include "base/strings/string16.h"
  22 #include "chrome/browser/devtools/devtools_toggle_action.h"
  23 #include "chrome/browser/ui/bookmarks/bookmark_bar.h"
  24 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper_delegate.h"
  25 #include "chrome/browser/ui/browser_navigator.h"
  26 #include "chrome/browser/ui/chrome_bubble_manager.h"
  27 #include "chrome/browser/ui/chrome_web_modal_dialog_manager_delegate.h"
  28 #include "chrome/browser/ui/exclusive_access/exclusive_access_manager.h"
  29 #include "chrome/browser/ui/host_desktop.h"
  30 #include "chrome/browser/ui/search/search_tab_helper_delegate.h"
  31 #include "chrome/browser/ui/search_engines/search_engine_tab_helper_delegate.h"
  32 #include "chrome/browser/ui/tab_contents/core_tab_helper_delegate.h"
  33 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
  34 #include "components/content_settings/core/common/content_settings.h"
  35 #include "components/content_settings/core/common/content_settings_types.h"
  36 #include "components/sessions/session_id.h"
  37 #include "components/toolbar/toolbar_model.h"
  38 #include "components/translate/content/browser/content_translate_driver.h"
  39 #include "components/ui/zoom/zoom_observer.h"
  40 #include "content/public/browser/notification_observer.h"
  41 #include "content/public/browser/notification_registrar.h"
  42 #include "content/public/browser/page_navigator.h"
  43 #include "content/public/browser/web_contents_delegate.h"
  44 #include "content/public/common/page_zoom.h"
  45 #include "ui/base/page_transition_types.h"
  46 #include "ui/base/ui_base_types.h"
  47 #include "ui/base/window_open_disposition.h"
  48 #include "ui/gfx/geometry/rect.h"
  49 #include "ui/shell_dialogs/select_file_dialog.h"
  50
  51 #if defined(ENABLE_EXTENSIONS)
  52 #include "extensions/browser/extension_registry_observer.h"
  53 #endif
  54
  55 class BrowserContentSettingBubbleModelDelegate;
  56 class BrowserInstantController;
  57 class BrowserSyncedWindowDelegate;
  58 class BrowserToolbarModelDelegate;
  59 class BrowserTabRestoreServiceDelegate;
  60 class BrowserWindow;
  61 class FindBarController;
  62 class PrefService;
  63 class Profile;
  64 class SearchDelegate;
  65 class SearchModel;
  66 class StatusBubble;
  67 class TabStripModel;
  68 class TabStripModelDelegate;
  69 class ValidationMessageBubble;
  70 struct WebApplicationInfo;
  71
  72 namespace chrome {
  73 class BrowserCommandController;
  74 class FastUnloadController;
  75 class UnloadController;
  76 }
  77
  78 namespace content {
  79 class NavigationController;
  80 class PageState;
  81 class SessionStorageNamespace;
  82 }
  83
  84 namespace extensions {
  85 class HostedAppBrowserController;
  86 class Extension;
  87 class ExtensionRegistry;
  88 class WindowController;
  89 }
  90
  91 namespace gfx {
  92 class Image;
  93 class Point;
  94 }
  95
  96 namespace ui {
  97 struct SelectedFileInfo;
  98 class WebDialogDelegate;
  99 }
 100
 101 namespace web_modal {
 102 class WebContentsModalDialogHost;
 103 }
 104
 105 class Browser : public TabStripModelObserver,
 106                 public content::WebContentsDelegate,
 107                 public CoreTabHelperDelegate,
 108                 public SearchEngineTabHelperDelegate,
 109                 public SearchTabHelperDelegate,
 110                 public ChromeWebModalDialogManagerDelegate,
 111                 public BookmarkTabHelperDelegate,
 112                 public ui_zoom::ZoomObserver,
 113                 public content::PageNavigator,
 114                 public content::NotificationObserver,
 115 #if defined(ENABLE_EXTENSIONS)
 116                 public extensions::ExtensionRegistryObserver,
 117 #endif
 118                 public translate::ContentTranslateDriver::Observer,
 119                 public ui::SelectFileDialog::Listener {
 120  public:
 121   // SessionService::WindowType mirrors these values.  If you add to this
 122   // enum, look at SessionService::WindowType to see if it needs to be
 123   // updated.
 124   enum Type {
 125     // If you add a new type, consider updating the test
 126     // BrowserTest.StartMaximized.
 127     TYPE_TABBED = 1,
 128     TYPE_POPUP = 2
 129   };
 130
 131   // Possible elements of the Browser window.
 132   enum WindowFeature {
 133     FEATURE_NONE = 0,
 134     FEATURE_TITLEBAR = 1,
 135     FEATURE_TABSTRIP = 2,
 136     FEATURE_TOOLBAR = 4,
 137     FEATURE_LOCATIONBAR = 8,
 138     FEATURE_BOOKMARKBAR = 16,
 139     FEATURE_INFOBAR = 32,
 140     FEATURE_DOWNLOADSHELF = 64,
 141     FEATURE_WEBAPPFRAME = 128
 142   };
 143
 144   // The context for a download blocked notification from
 145   // OkToCloseWithInProgressDownloads.
 146   enum DownloadClosePreventionType {
 147     // Browser close is not blocked by download state.
 148     DOWNLOAD_CLOSE_OK,
 149
 150     // The browser is shutting down and there are active downloads
 151     // that would be cancelled.
 152     DOWNLOAD_CLOSE_BROWSER_SHUTDOWN,
 153
 154     // There are active downloads associated with this incognito profile
 155     // that would be canceled.
 156     DOWNLOAD_CLOSE_LAST_WINDOW_IN_INCOGNITO_PROFILE,
 157   };
 158
 159   struct CreateParams {
 160     CreateParams(Profile* profile, chrome::HostDesktopType host_desktop_type);
 161     CreateParams(Type type,
 162                  Profile* profile,
 163                  chrome::HostDesktopType host_desktop_type);
 164
 165     static CreateParams CreateForApp(const std::string& app_name,
 166                                      bool trusted_source,
 167                                      const gfx::Rect& window_bounds,
 168                                      Profile* profile,
 169                                      chrome::HostDesktopType host_desktop_type);
 170
 171     static CreateParams CreateForDevTools(
 172         Profile* profile,
 173         chrome::HostDesktopType host_desktop_type);
 174
 175     // The browser type.
 176     Type type;
 177
 178     // The associated profile.
 179     Profile* profile;
 180
 181     // The host desktop the browser is created on.
 182     chrome::HostDesktopType host_desktop_type;
 183
 184     // Specifies the browser is_trusted_source_ value.
 185     bool trusted_source;
 186
 187     // The bounds of the window to open.
 188     gfx::Rect initial_bounds;
 189
 190     ui::WindowShowState initial_show_state;
 191
 192     bool is_session_restore;
 193
 194     // Supply a custom BrowserWindow implementation, to be used instead of the
 195     // default. Intended for testing.
 196     BrowserWindow* window;
 197
 198    private:
 199     friend class Browser;
 200
 201     // The application name that is also the name of the window to the shell.
 202     // Do not set this value directly, use CreateForApp.
 203     // This name will be set for:
 204     // 1) v1 applications launched via an application shortcut or extension API.
 205     // 2) undocked devtool windows.
 206     // 3) popup windows spawned from v1 applications.
 207     std::string app_name;
 208   };
 209
 210   // Constructors, Creation, Showing //////////////////////////////////////////
 211
 212   explicit Browser(const CreateParams& params);
 213   ~Browser() override;
 214
 215   // Set overrides for the initial window bounds and maximized state.
 216   void set_override_bounds(const gfx::Rect& bounds) {
 217     override_bounds_ = bounds;
 218   }
 219   ui::WindowShowState initial_show_state() const { return initial_show_state_; }
 220   void set_initial_show_state(ui::WindowShowState initial_show_state) {
 221     initial_show_state_ = initial_show_state;
 222   }
 223   // Return true if the initial window bounds have been overridden.
 224   bool bounds_overridden() const {
 225     return !override_bounds_.IsEmpty();
 226   }
 227   // Set indicator that this browser is being created via session restore.
 228   // This is used on the Mac (only) to determine animation style when the
 229   // browser window is shown.
 230   void set_is_session_restore(bool is_session_restore) {
 231     is_session_restore_ = is_session_restore;
 232   }
 233   bool is_session_restore() const {
 234     return is_session_restore_;
 235   }
 236   chrome::HostDesktopType host_desktop_type() const {
 237     return host_desktop_type_;
 238   }
 239
 240   // Accessors ////////////////////////////////////////////////////////////////
 241
 242   Type type() const { return type_; }
 243   const std::string& app_name() const { return app_name_; }
 244   bool is_trusted_source() const { return is_trusted_source_; }
 245   Profile* profile() const { return profile_; }
 246   gfx::Rect override_bounds() const { return override_bounds_; }
 247
 248   // |window()| will return NULL if called before |CreateBrowserWindow()|
 249   // is done.
 250   BrowserWindow* window() const { return window_; }
 251   ToolbarModel* toolbar_model() { return toolbar_model_.get(); }
 252   const ToolbarModel* toolbar_model() const { return toolbar_model_.get(); }
 253 #if defined(UNIT_TEST)
 254   void swap_toolbar_models(scoped_ptr<ToolbarModel>* toolbar_model) {
 255     toolbar_model->swap(toolbar_model_);
 256   }
 257 #endif
 258   TabStripModel* tab_strip_model() const { return tab_strip_model_.get(); }
 259   chrome::BrowserCommandController* command_controller() {
 260     return command_controller_.get();
 261   }
 262   SearchModel* search_model() { return search_model_.get(); }
 263   const SearchModel* search_model() const {
 264       return search_model_.get();
 265   }
 266   SearchDelegate* search_delegate() {
 267     return search_delegate_.get();
 268   }
 269   const SessionID& session_id() const { return session_id_; }
 270   BrowserContentSettingBubbleModelDelegate*
 271       content_setting_bubble_model_delegate() {
 272     return content_setting_bubble_model_delegate_.get();
 273   }
 274   BrowserTabRestoreServiceDelegate* tab_restore_service_delegate() {
 275     return tab_restore_service_delegate_.get();
 276   }
 277   BrowserSyncedWindowDelegate* synced_window_delegate() {
 278     return synced_window_delegate_.get();
 279   }
 280   BrowserInstantController* instant_controller() {
 281     return instant_controller_.get();
 282   }
 283   extensions::HostedAppBrowserController* hosted_app_controller() {
 284     return hosted_app_controller_.get();
 285   }
 286
 287   // Will lazy create the bubble manager.
 288   ChromeBubbleManager* GetBubbleManager();
 289
 290   // Get the FindBarController for this browser, creating it if it does not
 291   // yet exist.
 292   FindBarController* GetFindBarController();
 293
 294   // Returns true if a FindBarController exists for this browser.
 295   bool HasFindBarController() const;
 296
 297   // Returns the state of the bookmark bar.
 298   BookmarkBar::State bookmark_bar_state() const { return bookmark_bar_state_; }
 299
 300   // State Storage and Retrieval for UI ///////////////////////////////////////
 301
 302   // Gets the Favicon of the page in the selected tab.
 303   gfx::Image GetCurrentPageIcon() const;
 304
 305   // Gets the title of the window based on the selected tab's title.
 306   base::string16 GetWindowTitleForCurrentTab() const;
 307
 308   // Prepares a title string for display (removes embedded newlines, etc).
 309   static void FormatTitleForDisplay(base::string16* title);
 310
 311   // OnBeforeUnload handling //////////////////////////////////////////////////
 312
 313   // Gives beforeunload handlers the chance to cancel the close. Returns whether
 314   // to proceed with the close. If called while the process begun by
 315   // CallBeforeUnloadHandlers is in progress, returns false without taking
 316   // action.
 317   bool ShouldCloseWindow();
 318
 319   // Begins the process of confirming whether the associated browser can be
 320   // closed. If there are no tabs with beforeunload handlers it will immediately
 321   // return false. Otherwise, it starts prompting the user, returns true and
 322   // will call |on_close_confirmed| with the result of the user's decision.
 323   // After calling this function, if the window will not be closed, call
 324   // ResetBeforeUnloadHandlers() to reset all beforeunload handlers; calling
 325   // this function multiple times without an intervening call to
 326   // ResetBeforeUnloadHandlers() will run only the beforeunload handlers
 327   // registered since the previous call.
 328   bool CallBeforeUnloadHandlers(
 329       const base::Callback<void(bool)>& on_close_confirmed);
 330
 331   // Clears the results of any beforeunload confirmation dialogs triggered by a
 332   // CallBeforeUnloadHandlers call.
 333   void ResetBeforeUnloadHandlers();
 334
 335   // Figure out if there are tabs that have beforeunload handlers.
 336   // It starts beforeunload/unload processing as a side-effect.
 337   bool TabsNeedBeforeUnloadFired();
 338
 339   // Returns true if all tabs' beforeunload/unload events have fired.
 340   bool HasCompletedUnloadProcessing() const;
 341
 342   bool IsAttemptingToCloseBrowser() const;
 343
 344   // Invoked when the window containing us is closing. Performs the necessary
 345   // cleanup.
 346   void OnWindowClosing();
 347
 348   // In-progress download termination handling /////////////////////////////////
 349
 350   // Called when the user has decided whether to proceed or not with the browser
 351   // closure.  |cancel_downloads| is true if the downloads should be canceled
 352   // and the browser closed, false if the browser should stay open and the
 353   // downloads running.
 354   void InProgressDownloadResponse(bool cancel_downloads);
 355
 356   // Indicates whether or not this browser window can be closed, or
 357   // would be blocked by in-progress downloads.
 358   // If executing downloads would be cancelled by this window close,
 359   // then |*num_downloads_blocking| is updated with how many downloads
 360   // would be canceled if the close continued.
 361   DownloadClosePreventionType OkToCloseWithInProgressDownloads(
 362       int* num_downloads_blocking) const;
 363
 364   // External state change handling ////////////////////////////////////////////
 365
 366   // Invoked when the fullscreen state of the window changes.
 367   // BrowserWindow::EnterFullscreen invokes this after the window has become
 368   // fullscreen.
 369   void WindowFullscreenStateChanged();
 370
 371   // Assorted browser commands ////////////////////////////////////////////////
 372
 373   // NOTE: Within each of the following sections, the IDs are ordered roughly by
 374   // how they appear in the GUI/menus (left to right, top to bottom, etc.).
 375
 376   // See the description of
 377   // FullscreenController::ToggleFullscreenModeWithExtension.
 378   void ToggleFullscreenModeWithExtension(const GURL& extension_url);
 379
 380 #if defined(OS_WIN)
 381   // See the description of FullscreenController::ToggleMetroSnapMode.
 382   void SetMetroSnapMode(bool enable);
 383 #endif
 384
 385   // Returns true if the Browser supports the specified feature. The value of
 386   // this varies during the lifetime of the browser. For example, if the window
 387   // is fullscreen this may return a different value. If you only care about
 388   // whether or not it's possible for the browser to support a particular
 389   // feature use |CanSupportWindowFeature|.
 390   bool SupportsWindowFeature(WindowFeature feature) const;
 391
 392   // Returns true if the Browser can support the specified feature. See comment
 393   // in |SupportsWindowFeature| for details on this.
 394   bool CanSupportWindowFeature(WindowFeature feature) const;
 395
 396   // TODO(port): port these, and re-merge the two function declaration lists.
 397   // Page-related commands.
 398   void ToggleEncodingAutoDetect();
 399   void OverrideEncoding(int encoding_id);
 400
 401   // Show various bits of UI
 402   void OpenFile();
 403
 404   void UpdateDownloadShelfVisibility(bool visible);
 405
 406   /////////////////////////////////////////////////////////////////////////////
 407
 408   // Called by chrome::Navigate() when a navigation has occurred in a tab in
 409   // this Browser. Updates the UI for the start of this navigation.
 410   void UpdateUIForNavigationInTab(content::WebContents* contents,
 411                                   ui::PageTransition transition,
 412                                   bool user_initiated);
 413
 414   // Interface implementations ////////////////////////////////////////////////
 415
 416   // Overridden from content::PageNavigator:
 417   content::WebContents* OpenURL(const content::OpenURLParams& params) override;
 418
 419   // Overridden from TabStripModelObserver:
 420   void TabInsertedAt(content::WebContents* contents,
 421                      int index,
 422                      bool foreground) override;
 423   void TabClosingAt(TabStripModel* tab_strip_model,
 424                     content::WebContents* contents,
 425                     int index) override;
 426   void TabDetachedAt(content::WebContents* contents, int index) override;
 427   void TabDeactivated(content::WebContents* contents) override;
 428   void ActiveTabChanged(content::WebContents* old_contents,
 429                         content::WebContents* new_contents,
 430                         int index,
 431                         int reason) override;
 432   void TabMoved(content::WebContents* contents,
 433                 int from_index,
 434                 int to_index) override;
 435   void TabReplacedAt(TabStripModel* tab_strip_model,
 436                      content::WebContents* old_contents,
 437                      content::WebContents* new_contents,
 438                      int index) override;
 439   void TabPinnedStateChanged(content::WebContents* contents,
 440                              int index) override;
 441   void TabStripEmpty() override;
 442
 443   // Overridden from content::WebContentsDelegate:
 444   bool CanOverscrollContent() const override;
 445   bool ShouldPreserveAbortedURLs(content::WebContents* source) override;
 446   void SetFocusToLocationBar(bool select_all) override;
 447   bool PreHandleKeyboardEvent(content::WebContents* source,
 448                               const content::NativeWebKeyboardEvent& event,
 449                               bool* is_keyboard_shortcut) override;
 450   void HandleKeyboardEvent(
 451       content::WebContents* source,
 452       const content::NativeWebKeyboardEvent& event) override;
 453   void ShowValidationMessage(content::WebContents* web_contents,
 454                              const gfx::Rect& anchor_in_root_view,
 455                              const base::string16& main_text,
 456                              const base::string16& sub_text) override;
 457   void HideValidationMessage(content::WebContents* web_contents) override;
 458   void MoveValidationMessage(content::WebContents* web_contents,
 459                              const gfx::Rect& anchor_in_root_view) override;
 460   bool PreHandleGestureEvent(content::WebContents* source,
 461                              const blink::WebGestureEvent& event) override;
 462   bool CanDragEnter(content::WebContents* source,
 463                     const content::DropData& data,
 464                     blink::WebDragOperationsMask operations_allowed) override;
 465   content::SecurityStyle GetSecurityStyle(
 466       content::WebContents* web_contents,
 467       content::SecurityStyleExplanations* security_style_explanations) override;
 468
 469   bool is_type_tabbed() const { return type_ == TYPE_TABBED; }
 470   bool is_type_popup() const { return type_ == TYPE_POPUP; }
 471
 472   bool is_app() const;
 473   bool is_devtools() const;
 474
 475   // True when the mouse cursor is locked.
 476   bool IsMouseLocked() const;
 477
 478   // Called each time the browser window is shown.
 479   void OnWindowDidShow();
 480
 481   // Show the first run search engine bubble on the location bar.
 482   void ShowFirstRunBubble();
 483
 484   ExclusiveAccessManager* exclusive_access_manager() {
 485     return exclusive_access_manager_.get();
 486   }
 487
 488   extensions::WindowController* extension_window_controller() const {
 489     return extension_window_controller_.get();
 490   }
 491
 492  private:
 493   friend class BrowserTest;
 494   friend class FullscreenControllerInteractiveTest;
 495   friend class FullscreenControllerTest;
 496   FRIEND_TEST_ALL_PREFIXES(AppModeTest, EnableAppModeTest);
 497   FRIEND_TEST_ALL_PREFIXES(BrowserCommandControllerTest,
 498                            IsReservedCommandOrKeyIsApp);
 499   FRIEND_TEST_ALL_PREFIXES(BrowserCommandControllerTest, AppFullScreen);
 500   FRIEND_TEST_ALL_PREFIXES(BrowserTest, NoTabsInPopups);
 501   FRIEND_TEST_ALL_PREFIXES(BrowserTest, ConvertTabToAppShortcut);
 502   FRIEND_TEST_ALL_PREFIXES(BrowserTest, OpenAppWindowLikeNtp);
 503   FRIEND_TEST_ALL_PREFIXES(BrowserTest, AppIdSwitch);
 504   FRIEND_TEST_ALL_PREFIXES(BrowserTest, ShouldShowLocationBar);
 505   FRIEND_TEST_ALL_PREFIXES(ExclusiveAccessBubbleWindowControllerTest,
 506                            DenyExitsFullscreen);
 507   FRIEND_TEST_ALL_PREFIXES(FullscreenControllerTest,
 508                            TabEntersPresentationModeFromWindowed);
 509   FRIEND_TEST_ALL_PREFIXES(StartupBrowserCreatorTest, OpenAppShortcutNoPref);
 510   FRIEND_TEST_ALL_PREFIXES(StartupBrowserCreatorTest,
 511                            OpenAppShortcutWindowPref);
 512   FRIEND_TEST_ALL_PREFIXES(StartupBrowserCreatorTest, OpenAppShortcutTabPref);
 513
 514   class InterstitialObserver;
 515
 516   // Used to describe why a tab is being detached. This is used by
 517   // TabDetachedAtImpl.
 518   enum DetachType {
 519     // Result of TabDetachedAt.
 520     DETACH_TYPE_DETACH,
 521
 522     // Result of TabReplacedAt.
 523     DETACH_TYPE_REPLACE,
 524
 525     // Result of the tab strip not having any significant tabs.
 526     DETACH_TYPE_EMPTY
 527   };
 528
 529   // Describes where the bookmark bar state change originated from.
 530   enum BookmarkBarStateChangeReason {
 531     // From the constructor.
 532     BOOKMARK_BAR_STATE_CHANGE_INIT,
 533
 534     // Change is the result of the active tab changing.
 535     BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH,
 536
 537     // Change is the result of the bookmark bar pref changing.
 538     BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE,
 539
 540     // Change is the result of a state change in the active tab.
 541     BOOKMARK_BAR_STATE_CHANGE_TAB_STATE,
 542
 543     // Change is the result of window toggling in/out of fullscreen mode.
 544     BOOKMARK_BAR_STATE_CHANGE_TOGGLE_FULLSCREEN,
 545   };
 546
 547   // Overridden from content::WebContentsDelegate:
 548   content::WebContents* OpenURLFromTab(
 549       content::WebContents* source,
 550       const content::OpenURLParams& params) override;
 551   void NavigationStateChanged(content::WebContents* source,
 552                               content::InvalidateTypes changed_flags) override;
 553   void VisibleSSLStateChanged(const content::WebContents* source) override;
 554   void AddNewContents(content::WebContents* source,
 555                       content::WebContents* new_contents,
 556                       WindowOpenDisposition disposition,
 557                       const gfx::Rect& initial_rect,
 558                       bool user_gesture,
 559                       bool* was_blocked) override;
 560   void ActivateContents(content::WebContents* contents) override;
 561   void DeactivateContents(content::WebContents* contents) override;
 562   void LoadingStateChanged(content::WebContents* source,
 563                            bool to_different_document) override;
 564   void CloseContents(content::WebContents* source) override;
 565   void MoveContents(content::WebContents* source,
 566                     const gfx::Rect& pos) override;
 567   bool IsPopupOrPanel(const content::WebContents* source) const override;
 568   void UpdateTargetURL(content::WebContents* source, const GURL& url) override;
 569   void ContentsMouseEvent(content::WebContents* source,
 570                           const gfx::Point& location,
 571                           bool motion) override;
 572   void ContentsZoomChange(bool zoom_in) override;
 573   bool TakeFocus(content::WebContents* source, bool reverse) override;
 574   gfx::Rect GetRootWindowResizerRect() const override;
 575   void BeforeUnloadFired(content::WebContents* source,
 576                          bool proceed,
 577                          bool* proceed_to_fire_unload) override;
 578   bool ShouldFocusLocationBarByDefault(content::WebContents* source) override;
 579   void ViewSourceForTab(content::WebContents* source,
 580                         const GURL& page_url) override;
 581   void ViewSourceForFrame(content::WebContents* source,
 582                           const GURL& frame_url,
 583                           const content::PageState& frame_page_state) override;
 584   void ShowRepostFormWarningDialog(content::WebContents* source) override;
 585   bool ShouldCreateWebContents(
 586       content::WebContents* web_contents,
 587       int route_id,
 588       int main_frame_route_id,
 589       WindowContainerType window_container_type,
 590       const std::string& frame_name,
 591       const GURL& target_url,
 592       const std::string& partition_id,
 593       content::SessionStorageNamespace* session_storage_namespace) override;
 594   void WebContentsCreated(content::WebContents* source_contents,
 595                           int opener_render_frame_id,
 596                           const std::string& frame_name,
 597                           const GURL& target_url,
 598                           content::WebContents* new_contents) override;
 599   void RendererUnresponsive(content::WebContents* source) override;
 600   void RendererResponsive(content::WebContents* source) override;
 601   void DidNavigateMainFramePostCommit(
 602       content::WebContents* web_contents) override;
 603   content::JavaScriptDialogManager* GetJavaScriptDialogManager(
 604       content::WebContents* source) override;
 605   content::ColorChooser* OpenColorChooser(
 606       content::WebContents* web_contents,
 607       SkColor color,
 608       const std::vector<content::ColorSuggestion>& suggestions) override;
 609   void RunFileChooser(content::WebContents* web_contents,
 610                       const content::FileChooserParams& params) override;
 611   void EnumerateDirectory(content::WebContents* web_contents,
 612                           int request_id,
 613                           const base::FilePath& path) override;
 614   bool EmbedsFullscreenWidget() const override;
 615   void EnterFullscreenModeForTab(content::WebContents* web_contents,
 616                                  const GURL& origin) override;
 617   void ExitFullscreenModeForTab(content::WebContents* web_contents) override;
 618   bool IsFullscreenForTabOrPending(
 619       const content::WebContents* web_contents) const override;
 620   void RegisterProtocolHandler(content::WebContents* web_contents,
 621                                const std::string& protocol,
 622                                const GURL& url,
 623                                bool user_gesture) override;
 624   void UnregisterProtocolHandler(content::WebContents* web_contents,
 625                                  const std::string& protocol,
 626                                  const GURL& url,
 627                                  bool user_gesture) override;
 628   void UpdatePreferredSize(content::WebContents* source,
 629                            const gfx::Size& pref_size) override;
 630   void ResizeDueToAutoResize(content::WebContents* source,
 631                              const gfx::Size& new_size) override;
 632   void FindReply(content::WebContents* web_contents,
 633                  int request_id,
 634                  int number_of_matches,
 635                  const gfx::Rect& selection_rect,
 636                  int active_match_ordinal,
 637                  bool final_update) override;
 638   void RequestToLockMouse(content::WebContents* web_contents,
 639                           bool user_gesture,
 640                           bool last_unlocked_by_target) override;
 641   void LostMouseLock() override;
 642   void RequestMediaAccessPermission(
 643       content::WebContents* web_contents,
 644       const content::MediaStreamRequest& request,
 645       const content::MediaResponseCallback& callback) override;
 646   bool CheckMediaAccessPermission(content::WebContents* web_contents,
 647                                   const GURL& security_origin,
 648                                   content::MediaStreamType type) override;
 649   bool RequestPpapiBrokerPermission(
 650       content::WebContents* web_contents,
 651       const GURL& url,
 652       const base::FilePath& plugin_path,
 653       const base::Callback<void(bool)>& callback) override;
 654   gfx::Size GetSizeForNewRenderView(
 655       content::WebContents* web_contents) const override;
 656
 657   // Overridden from CoreTabHelperDelegate:
 658   // Note that the caller is responsible for deleting |old_contents|.
 659   void SwapTabContents(content::WebContents* old_contents,
 660                        content::WebContents* new_contents,
 661                        bool did_start_load,
 662                        bool did_finish_load) override;
 663   bool CanReloadContents(content::WebContents* web_contents) const override;
 664   bool CanSaveContents(content::WebContents* web_contents) const override;
 665
 666   // Overridden from SearchEngineTabHelperDelegate:
 667   void ConfirmAddSearchProvider(TemplateURL* template_url,
 668                                 Profile* profile) override;
 669
 670   // Overridden from SearchTabHelperDelegate:
 671   void NavigateOnThumbnailClick(const GURL& url,
 672                                 WindowOpenDisposition disposition,
 673                                 content::WebContents* source_contents) override;
 674   void OnWebContentsInstantSupportDisabled(
 675       const content::WebContents* web_contents) override;
 676   OmniboxView* GetOmniboxView() override;
 677   std::set<std::string> GetOpenUrls() override;
 678
 679   // Overridden from WebContentsModalDialogManagerDelegate:
 680   void SetWebContentsBlocked(content::WebContents* web_contents,
 681                              bool blocked) override;
 682   web_modal::WebContentsModalDialogHost* GetWebContentsModalDialogHost()
 683       override;
 684
 685   // Overridden from BookmarkTabHelperDelegate:
 686   void URLStarredChanged(content::WebContents* web_contents,
 687                          bool starred) override;
 688
 689   // Overridden from ZoomObserver:
 690   void OnZoomChanged(
 691       const ui_zoom::ZoomController::ZoomChangedEventData& data) override;
 692
 693   // Overridden from SelectFileDialog::Listener:
 694   void FileSelected(const base::FilePath& path,
 695                     int index,
 696                     void* params) override;
 697   void FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
 698                                  int index,
 699                                  void* params) override;
 700
 701   // Overridden from content::NotificationObserver:
 702   void Observe(int type,
 703                const content::NotificationSource& source,
 704                const content::NotificationDetails& details) override;
 705
 706 #if defined(ENABLE_EXTENSIONS)
 707   // Overridden from extensions::ExtensionRegistryObserver:
 708   void OnExtensionUninstalled(content::BrowserContext* browser_context,
 709                               const extensions::Extension* extension,
 710                               extensions::UninstallReason reason) override;
 711   void OnExtensionLoaded(content::BrowserContext* browser_context,
 712                          const extensions::Extension* extension) override;
 713   void OnExtensionUnloaded(
 714       content::BrowserContext* browser_context,
 715       const extensions::Extension* extension,
 716       extensions::UnloadedExtensionInfo::Reason reason) override;
 717 #endif
 718
 719   // Overridden from translate::ContentTranslateDriver::Observer:
 720   void OnIsPageTranslatedChanged(content::WebContents* source) override;
 721   void OnTranslateEnabledChanged(content::WebContents* source) override;
 722
 723   // Command and state updating ///////////////////////////////////////////////
 724
 725   // Handle changes to kDevTools preference.
 726   void OnDevToolsDisabledChanged();
 727
 728   // UI update coalescing and handling ////////////////////////////////////////
 729
 730   // Asks the toolbar (and as such the location bar) to update its state to
 731   // reflect the current tab's current URL, security state, etc.
 732   // If |should_restore_state| is true, we're switching (back?) to this tab and
 733   // should restore any previous location bar state (such as user editing) as
 734   // well.
 735   void UpdateToolbar(bool should_restore_state);
 736
 737   // Does one or both of the following for each bit in |changed_flags|:
 738   // . If the update should be processed immediately, it is.
 739   // . If the update should processed asynchronously (to avoid lots of ui
 740   //   updates), then scheduled_updates_ is updated for the |source| and update
 741   //   pair and a task is scheduled (assuming it isn't running already)
 742   //   that invokes ProcessPendingUIUpdates.
 743   void ScheduleUIUpdate(content::WebContents* source,
 744                         unsigned changed_flags);
 745
 746   // Processes all pending updates to the UI that have been scheduled by
 747   // ScheduleUIUpdate in scheduled_updates_.
 748   void ProcessPendingUIUpdates();
 749
 750   // Removes all entries from scheduled_updates_ whose source is contents.
 751   void RemoveScheduledUpdatesFor(content::WebContents* contents);
 752
 753   // Getters for UI ///////////////////////////////////////////////////////////
 754
 755   // TODO(beng): remove, and provide AutomationProvider a better way to access
 756   //             the LocationBarView's edit.
 757   friend class AutomationProvider;
 758   friend class BrowserProxy;
 759
 760   // Returns the StatusBubble from the current toolbar. It is possible for
 761   // this to return NULL if called before the toolbar has initialized.
 762   // TODO(beng): remove this.
 763   StatusBubble* GetStatusBubble();
 764
 765   // Session restore functions ////////////////////////////////////////////////
 766
 767   // Notifies the history database of the index for all tabs whose index is
 768   // >= index.
 769   void SyncHistoryWithTabs(int index);
 770
 771   // In-progress download termination handling /////////////////////////////////
 772
 773   // Called when the window is closing to check if potential in-progress
 774   // downloads should prevent it from closing.
 775   // Returns true if the window can close, false otherwise.
 776   bool CanCloseWithInProgressDownloads();
 777
 778   // Assorted utility functions ///////////////////////////////////////////////
 779
 780   // Sets the specified browser as the delegate of the WebContents and all the
 781   // associated tab helpers that are needed. If |set_delegate| is true, this
 782   // browser object is set as a delegate for |web_contents| components, else
 783   // is is removed as a delegate.
 784   void SetAsDelegate(content::WebContents* web_contents, bool set_delegate);
 785
 786   // Shows the Find Bar, optionally selecting the next entry that matches the
 787   // existing search string for that Tab. |forward_direction| controls the
 788   // search direction.
 789   void FindInPage(bool find_next, bool forward_direction);
 790
 791   // Closes the frame.
 792   // TODO(beng): figure out if we need this now that the frame itself closes
 793   //             after a return to the message loop.
 794   void CloseFrame();
 795
 796   void TabDetachedAtImpl(content::WebContents* contents,
 797                          int index,
 798                          DetachType type);
 799
 800   // Shared code between Reload() and ReloadIgnoringCache().
 801   void ReloadInternal(WindowOpenDisposition disposition, bool ignore_cache);
 802
 803   // Returns true if the Browser window supports a location bar. Having support
 804   // for the location bar does not mean it will be visible.
 805   bool SupportsLocationBar() const;
 806
 807   // Returns true if the Browser window should show the location bar.
 808   bool ShouldShowLocationBar() const;
 809
 810   // Returns true if the Browser window should use a web app style frame.
 811   bool ShouldUseWebAppFrame() const;
 812
 813   // Implementation of SupportsWindowFeature and CanSupportWindowFeature. If
 814   // |check_fullscreen| is true, the set of features reflect the actual state of
 815   // the browser, otherwise the set of features reflect the possible state of
 816   // the browser.
 817   bool SupportsWindowFeatureImpl(WindowFeature feature,
 818                                  bool check_fullscreen) const;
 819
 820   // Resets |bookmark_bar_state_| based on the active tab. Notifies the
 821   // BrowserWindow if necessary.
 822   void UpdateBookmarkBarState(BookmarkBarStateChangeReason reason);
 823
 824   bool ShouldHideUIForFullscreen() const;
 825
 826   // Creates a BackgroundContents if appropriate; return true if one was
 827   // created.
 828   bool MaybeCreateBackgroundContents(
 829       int route_id,
 830       int main_frame_route_id,
 831       content::WebContents* opener_web_contents,
 832       const std::string& frame_name,
 833       const GURL& target_url,
 834       const std::string& partition_id,
 835       content::SessionStorageNamespace* session_storage_namespace);
 836
 837   // Data members /////////////////////////////////////////////////////////////
 838
 839   std::vector<InterstitialObserver*> interstitial_observers_;
 840
 841   content::NotificationRegistrar registrar_;
 842
 843 #if defined(ENABLE_EXTENSIONS)
 844   ScopedObserver<extensions::ExtensionRegistry,
 845                  extensions::ExtensionRegistryObserver>
 846       extension_registry_observer_;
 847 #endif
 848
 849   PrefChangeRegistrar profile_pref_registrar_;
 850
 851   // This Browser's type.
 852   const Type type_;
 853
 854   // This Browser's profile.
 855   Profile* const profile_;
 856
 857   // This Browser's window.
 858   BrowserWindow* window_;
 859
 860   scoped_ptr<TabStripModelDelegate> tab_strip_model_delegate_;
 861   scoped_ptr<TabStripModel> tab_strip_model_;
 862
 863   // The application name that is also the name of the window to the shell.
 864   // This name should be set when:
 865   // 1) we launch an application via an application shortcut or extension API.
 866   // 2) we launch an undocked devtool window.
 867   std::string app_name_;
 868
 869   // True if the source is trusted (i.e. we do not need to show the URL in a
 870   // a popup window). Also used to determine which app windows to save and
 871   // restore on Chrome OS.
 872   bool is_trusted_source_;
 873
 874   // Unique identifier of this browser for session restore. This id is only
 875   // unique within the current session, and is not guaranteed to be unique
 876   // across sessions.
 877   const SessionID session_id_;
 878
 879   // The model for the toolbar view.
 880   scoped_ptr<ToolbarModel> toolbar_model_;
 881
 882   // The model for the "active" search state.  There are per-tab search models
 883   // as well.  When a tab is active its model is kept in sync with this one.
 884   // When a new tab is activated its model state is propagated to this active
 885   // model.  This way, observers only have to attach to this single model for
 886   // updates, and don't have to worry about active tab changes directly.
 887   scoped_ptr<SearchModel> search_model_;
 888
 889   // UI update coalescing and handling ////////////////////////////////////////
 890
 891   typedef std::map<const content::WebContents*, int> UpdateMap;
 892
 893   // Maps from WebContents to pending UI updates that need to be processed.
 894   // We don't update things like the URL or tab title right away to avoid
 895   // flickering and extra painting.
 896   // See ScheduleUIUpdate and ProcessPendingUIUpdates.
 897   UpdateMap scheduled_updates_;
 898
 899   // In-progress download termination handling /////////////////////////////////
 900
 901   enum CancelDownloadConfirmationState {
 902     NOT_PROMPTED,          // We have not asked the user.
 903     WAITING_FOR_RESPONSE,  // We have asked the user and have not received a
 904                            // reponse yet.
 905     RESPONSE_RECEIVED      // The user was prompted and made a decision already.
 906   };
 907
 908   // State used to figure-out whether we should prompt the user for confirmation
 909   // when the browser is closed with in-progress downloads.
 910   CancelDownloadConfirmationState cancel_download_confirmation_state_;
 911
 912   /////////////////////////////////////////////////////////////////////////////
 913
 914   // Override values for the bounds of the window and its maximized or minimized
 915   // state.
 916   // These are supplied by callers that don't want to use the default values.
 917   // The default values are typically loaded from local state (last session),
 918   // obtained from the last window of the same type, or obtained from the
 919   // shell shortcut's startup info.
 920   gfx::Rect override_bounds_;
 921   ui::WindowShowState initial_show_state_;
 922
 923   // Tracks when this browser is being created by session restore.
 924   bool is_session_restore_;
 925
 926   const chrome::HostDesktopType host_desktop_type_;
 927
 928   scoped_ptr<chrome::UnloadController> unload_controller_;
 929   scoped_ptr<chrome::FastUnloadController> fast_unload_controller_;
 930
 931   scoped_ptr<ChromeBubbleManager> bubble_manager_;
 932
 933   // The Find Bar. This may be NULL if there is no Find Bar, and if it is
 934   // non-NULL, it may or may not be visible.
 935   scoped_ptr<FindBarController> find_bar_controller_;
 936
 937   // Dialog box used for opening and saving files.
 938   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
 939
 940   // Keep track of the encoding auto detect pref.
 941   BooleanPrefMember encoding_auto_detect_;
 942
 943   // Helper which implements the ContentSettingBubbleModel interface.
 944   scoped_ptr<BrowserContentSettingBubbleModelDelegate>
 945       content_setting_bubble_model_delegate_;
 946
 947   // Helper which implements the ToolbarModelDelegate interface.
 948   scoped_ptr<BrowserToolbarModelDelegate> toolbar_model_delegate_;
 949
 950   // A delegate that handles the details of updating the "active"
 951   // |search_model_| state with the tab's state.
 952   scoped_ptr<SearchDelegate> search_delegate_;
 953
 954   // Helper which implements the TabRestoreServiceDelegate interface.
 955   scoped_ptr<BrowserTabRestoreServiceDelegate> tab_restore_service_delegate_;
 956
 957   // Helper which implements the SyncedWindowDelegate interface.
 958   scoped_ptr<BrowserSyncedWindowDelegate> synced_window_delegate_;
 959
 960   scoped_ptr<BrowserInstantController> instant_controller_;
 961
 962   // Helper which handles bookmark app specific browser configuration.
 963   scoped_ptr<extensions::HostedAppBrowserController> hosted_app_controller_;
 964
 965   BookmarkBar::State bookmark_bar_state_;
 966
 967   scoped_ptr<ExclusiveAccessManager> exclusive_access_manager_;
 968
 969   scoped_ptr<extensions::WindowController> extension_window_controller_;
 970
 971   scoped_ptr<chrome::BrowserCommandController> command_controller_;
 972
 973   // True if the browser window has been shown at least once.
 974   bool window_has_shown_;
 975
 976   scoped_ptr<ValidationMessageBubble> validation_message_bubble_;
 977
 978   // The following factory is used for chrome update coalescing.
 979   base::WeakPtrFactory<Browser> chrome_updater_factory_;
 980
 981   // The following factory is used to close the frame at a later time.
 982   base::WeakPtrFactory<Browser> weak_factory_;
 983
 984   DISALLOW_COPY_AND_ASSIGN(Browser);
 985 };
 986
 987 #endif  // CHROME_BROWSER_UI_BROWSER_H_