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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <map>
#include <set>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/prefs/pref_change_registrar.h"
#include "base/prefs/pref_member.h"
#include "base/scoped_observer.h"
#include "base/strings/string16.h"
#include "chrome/browser/devtools/devtools_toggle_action.h"
#include "chrome/browser/ui/bookmarks/bookmark_bar.h"
#include "chrome/browser/ui/bookmarks/bookmark_tab_helper_delegate.h"
#include "chrome/browser/ui/browser_navigator.h"
#include "chrome/browser/ui/chrome_web_modal_dialog_manager_delegate.h"
#include "chrome/browser/ui/exclusive_access/exclusive_access_manager.h"
#include "chrome/browser/ui/host_desktop.h"
#include "chrome/browser/ui/search/search_tab_helper_delegate.h"
#include "chrome/browser/ui/search_engines/search_engine_tab_helper_delegate.h"
#include "chrome/browser/ui/tab_contents/core_tab_helper_delegate.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "chrome/browser/ui/toolbar/toolbar_model.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/content_settings/core/common/content_settings_types.h"
#include "components/sessions/session_id.h"
#include "components/translate/content/browser/content_translate_driver.h"
#include "components/ui/zoom/zoom_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/page_navigator.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/common/page_zoom.h"
#include "ui/base/page_transition_types.h"
#include "ui/base/ui_base_types.h"
#include "ui/base/window_open_disposition.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/shell_dialogs/select_file_dialog.h"
#include "extensions/browser/extension_registry_observer.h"
class BrowserContentSettingBubbleModelDelegate;
class BrowserInstantController;
class BrowserSyncedWindowDelegate;
class BrowserToolbarModelDelegate;
class BrowserTabRestoreServiceDelegate;
class BrowserWindow;
class FindBarController;
class PrefService;
class Profile;
class SearchDelegate;
class SearchModel;
class StatusBubble;
class TabStripModel;
class TabStripModelDelegate;
class ValidationMessageBubble;
struct WebApplicationInfo;
namespace chrome {
class BrowserCommandController;
class FastUnloadController;
class UnloadController;
namespace content {
class NavigationController;
class PageState;
class SessionStorageNamespace;
namespace extensions {
class BookmarkAppBrowserController;
class Extension;
class ExtensionRegistry;
class WindowController;
namespace gfx {
class Image;
class Point;
namespace ui {
struct SelectedFileInfo;
class WebDialogDelegate;
namespace web_modal {
class PopupManager;
class WebContentsModalDialogHost;
class Browser : public TabStripModelObserver,
public content::WebContentsDelegate,
public CoreTabHelperDelegate,
public SearchEngineTabHelperDelegate,
public SearchTabHelperDelegate,
public ChromeWebModalDialogManagerDelegate,
public BookmarkTabHelperDelegate,
public ui_zoom::ZoomObserver,
public content::PageNavigator,
public content::NotificationObserver,
public extensions::ExtensionRegistryObserver,
public translate::ContentTranslateDriver::Observer,
public ui::SelectFileDialog::Listener {
// SessionService::WindowType mirrors these values. If you add to this
// enum, look at SessionService::WindowType to see if it needs to be
// updated.
enum Type {
// If you add a new type, consider updating the test
// BrowserTest.StartMaximized.
// Possible elements of the Browser window.
enum WindowFeature {
// The context for a download blocked notification from
// OkToCloseWithInProgressDownloads.
enum DownloadClosePreventionType {
// Browser close is not blocked by download state.
// The browser is shutting down and there are active downloads
// that would be cancelled.
// There are active downloads associated with this incognito profile
// that would be canceled.
struct CreateParams {
CreateParams(Profile* profile, chrome::HostDesktopType host_desktop_type);
CreateParams(Type type,
Profile* profile,
chrome::HostDesktopType host_desktop_type);
static CreateParams CreateForApp(const std::string& app_name,
bool trusted_source,
const gfx::Rect& window_bounds,
Profile* profile,
chrome::HostDesktopType host_desktop_type);
static CreateParams CreateForDevTools(
Profile* profile,
chrome::HostDesktopType host_desktop_type);
// The browser type.
Type type;
// The associated profile.
Profile* profile;
// The host desktop the browser is created on.
chrome::HostDesktopType host_desktop_type;
// Specifies the browser is_trusted_source_ value.
bool trusted_source;
// The bounds of the window to open.
gfx::Rect initial_bounds;
ui::WindowShowState initial_show_state;
bool is_session_restore;
// Supply a custom BrowserWindow implementation, to be used instead of the
// default. Intended for testing.
BrowserWindow* window;
friend class Browser;
// The application name that is also the name of the window to the shell.
// Do not set this value directly, use CreateForApp.
// This name will be set for:
// 1) v1 applications launched via an application shortcut or extension API.
// 2) undocked devtool windows.
// 3) popup windows spawned from v1 applications.
std::string app_name;
// Constructors, Creation, Showing //////////////////////////////////////////
explicit Browser(const CreateParams& params);
~Browser() override;
// Set overrides for the initial window bounds and maximized state.
void set_override_bounds(const gfx::Rect& bounds) {
override_bounds_ = bounds;
ui::WindowShowState initial_show_state() const { return initial_show_state_; }
void set_initial_show_state(ui::WindowShowState initial_show_state) {
initial_show_state_ = initial_show_state;
// Return true if the initial window bounds have been overridden.
bool bounds_overridden() const {
return !override_bounds_.IsEmpty();
// Set indicator that this browser is being created via session restore.
// This is used on the Mac (only) to determine animation style when the
// browser window is shown.
void set_is_session_restore(bool is_session_restore) {
is_session_restore_ = is_session_restore;
bool is_session_restore() const {
return is_session_restore_;
chrome::HostDesktopType host_desktop_type() const {
return host_desktop_type_;
// Accessors ////////////////////////////////////////////////////////////////
Type type() const { return type_; }
const std::string& app_name() const { return app_name_; }
bool is_trusted_source() const { return is_trusted_source_; }
Profile* profile() const { return profile_; }
gfx::Rect override_bounds() const { return override_bounds_; }
// |window()| will return NULL if called before |CreateBrowserWindow()|
// is done.
BrowserWindow* window() const { return window_; }
ToolbarModel* toolbar_model() { return toolbar_model_.get(); }
const ToolbarModel* toolbar_model() const { return toolbar_model_.get(); }
#if defined(UNIT_TEST)
void swap_toolbar_models(scoped_ptr<ToolbarModel>* toolbar_model) {
web_modal::PopupManager* popup_manager() {
return popup_manager_.get();
TabStripModel* tab_strip_model() const { return tab_strip_model_.get(); }
chrome::BrowserCommandController* command_controller() {
return command_controller_.get();
SearchModel* search_model() { return search_model_.get(); }
const SearchModel* search_model() const {
return search_model_.get();
SearchDelegate* search_delegate() {
return search_delegate_.get();
const SessionID& session_id() const { return session_id_; }
content_setting_bubble_model_delegate() {
return content_setting_bubble_model_delegate_.get();
BrowserTabRestoreServiceDelegate* tab_restore_service_delegate() {
return tab_restore_service_delegate_.get();
BrowserSyncedWindowDelegate* synced_window_delegate() {
return synced_window_delegate_.get();
BrowserInstantController* instant_controller() {
return instant_controller_.get();
extensions::BookmarkAppBrowserController* bookmark_app_controller() {
return bookmark_app_controller_.get();
// Get the FindBarController for this browser, creating it if it does not
// yet exist.
FindBarController* GetFindBarController();
// Returns true if a FindBarController exists for this browser.
bool HasFindBarController() const;
// Returns the state of the bookmark bar.
BookmarkBar::State bookmark_bar_state() const { return bookmark_bar_state_; }
// State Storage and Retrieval for UI ///////////////////////////////////////
// Gets the Favicon of the page in the selected tab.
gfx::Image GetCurrentPageIcon() const;
// Gets the title of the window based on the selected tab's title.
base::string16 GetWindowTitleForCurrentTab() const;
// Prepares a title string for display (removes embedded newlines, etc).
static void FormatTitleForDisplay(base::string16* title);
// OnBeforeUnload handling //////////////////////////////////////////////////
// Gives beforeunload handlers the chance to cancel the close. Returns whether
// to proceed with the close. If called while the process begun by
// CallBeforeUnloadHandlers is in progress, returns false without taking
// action.
bool ShouldCloseWindow();
// Begins the process of confirming whether the associated browser can be
// closed. If there are no tabs with beforeunload handlers it will immediately
// return false. Otherwise, it starts prompting the user, returns true and
// will call |on_close_confirmed| with the result of the user's decision.
// After calling this function, if the window will not be closed, call
// ResetBeforeUnloadHandlers() to reset all beforeunload handlers; calling
// this function multiple times without an intervening call to
// ResetBeforeUnloadHandlers() will run only the beforeunload handlers
// registered since the previous call.
bool CallBeforeUnloadHandlers(
const base::Callback<void(bool)>& on_close_confirmed);
// Clears the results of any beforeunload confirmation dialogs triggered by a
// CallBeforeUnloadHandlers call.
void ResetBeforeUnloadHandlers();
// Figure out if there are tabs that have beforeunload handlers.
// It starts beforeunload/unload processing as a side-effect.
bool TabsNeedBeforeUnloadFired();
// Returns true if all tabs' beforeunload/unload events have fired.
bool HasCompletedUnloadProcessing() const;
bool IsAttemptingToCloseBrowser() const;
// Invoked when the window containing us is closing. Performs the necessary
// cleanup.
void OnWindowClosing();
// In-progress download termination handling /////////////////////////////////
// Called when the user has decided whether to proceed or not with the browser
// closure. |cancel_downloads| is true if the downloads should be canceled
// and the browser closed, false if the browser should stay open and the
// downloads running.
void InProgressDownloadResponse(bool cancel_downloads);
// Indicates whether or not this browser window can be closed, or
// would be blocked by in-progress downloads.
// If executing downloads would be cancelled by this window close,
// then |*num_downloads_blocking| is updated with how many downloads
// would be canceled if the close continued.
DownloadClosePreventionType OkToCloseWithInProgressDownloads(
int* num_downloads_blocking) const;
// External state change handling ////////////////////////////////////////////
// Invoked when the fullscreen state of the window changes.
// BrowserWindow::EnterFullscreen invokes this after the window has become
// fullscreen.
void WindowFullscreenStateChanged();
// Assorted browser commands ////////////////////////////////////////////////
// NOTE: Within each of the following sections, the IDs are ordered roughly by
// how they appear in the GUI/menus (left to right, top to bottom, etc.).
// See the description of
// FullscreenController::ToggleFullscreenModeWithExtension.
void ToggleFullscreenModeWithExtension(const GURL& extension_url);
#if defined(OS_WIN)
// See the description of FullscreenController::ToggleMetroSnapMode.
void SetMetroSnapMode(bool enable);
// Returns true if the Browser supports the specified feature. The value of
// this varies during the lifetime of the browser. For example, if the window
// is fullscreen this may return a different value. If you only care about
// whether or not it's possible for the browser to support a particular
// feature use |CanSupportWindowFeature|.
bool SupportsWindowFeature(WindowFeature feature) const;
// Returns true if the Browser can support the specified feature. See comment
// in |SupportsWindowFeature| for details on this.
bool CanSupportWindowFeature(WindowFeature feature) const;
// TODO(port): port these, and re-merge the two function declaration lists.
// Page-related commands.
void ToggleEncodingAutoDetect();
void OverrideEncoding(int encoding_id);
// Show various bits of UI
void OpenFile();
void UpdateDownloadShelfVisibility(bool visible);
// Called by chrome::Navigate() when a navigation has occurred in a tab in
// this Browser. Updates the UI for the start of this navigation.
void UpdateUIForNavigationInTab(content::WebContents* contents,
ui::PageTransition transition,
bool user_initiated);
// Interface implementations ////////////////////////////////////////////////
// Overridden from content::PageNavigator:
content::WebContents* OpenURL(const content::OpenURLParams& params) override;
// Overridden from TabStripModelObserver:
void TabInsertedAt(content::WebContents* contents,
int index,
bool foreground) override;
void TabClosingAt(TabStripModel* tab_strip_model,
content::WebContents* contents,
int index) override;
void TabDetachedAt(content::WebContents* contents, int index) override;
void TabDeactivated(content::WebContents* contents) override;
void ActiveTabChanged(content::WebContents* old_contents,
content::WebContents* new_contents,
int index,
int reason) override;
void TabMoved(content::WebContents* contents,
int from_index,
int to_index) override;
void TabReplacedAt(TabStripModel* tab_strip_model,
content::WebContents* old_contents,
content::WebContents* new_contents,
int index) override;
void TabPinnedStateChanged(content::WebContents* contents,
int index) override;
void TabStripEmpty() override;
// Overridden from content::WebContentsDelegate:
bool CanOverscrollContent() const override;
bool ShouldPreserveAbortedURLs(content::WebContents* source) override;
void SetFocusToLocationBar(bool select_all) override;
bool PreHandleKeyboardEvent(content::WebContents* source,
const content::NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) override;
void HandleKeyboardEvent(
content::WebContents* source,
const content::NativeWebKeyboardEvent& event) override;
void ShowValidationMessage(content::WebContents* web_contents,
const gfx::Rect& anchor_in_root_view,
const base::string16& main_text,
const base::string16& sub_text) override;
void HideValidationMessage(content::WebContents* web_contents) override;
void MoveValidationMessage(content::WebContents* web_contents,
const gfx::Rect& anchor_in_root_view) override;
bool PreHandleGestureEvent(content::WebContents* source,
const blink::WebGestureEvent& event) override;
bool CanDragEnter(content::WebContents* source,
const content::DropData& data,
blink::WebDragOperationsMask operations_allowed) override;
bool is_type_tabbed() const { return type_ == TYPE_TABBED; }
bool is_type_popup() const { return type_ == TYPE_POPUP; }
bool is_app() const;
bool is_devtools() const;
// True when the mouse cursor is locked.
bool IsMouseLocked() const;
// Called each time the browser window is shown.
void OnWindowDidShow();
// Show the first run search engine bubble on the location bar.
void ShowFirstRunBubble();
// Show a download on the download shelf.
void ShowDownload(content::DownloadItem* download);
ExclusiveAccessManager* exclusive_access_manager() {
return exclusive_access_manager_.get();
extensions::WindowController* extension_window_controller() const {
return extension_window_controller_.get();
friend class BrowserTest;
friend class FullscreenControllerInteractiveTest;
friend class FullscreenControllerTest;
FRIEND_TEST_ALL_PREFIXES(AppModeTest, EnableAppModeTest);
FRIEND_TEST_ALL_PREFIXES(BrowserCommandControllerTest, AppFullScreen);
FRIEND_TEST_ALL_PREFIXES(BrowserTest, NoTabsInPopups);
FRIEND_TEST_ALL_PREFIXES(BrowserTest, ConvertTabToAppShortcut);
FRIEND_TEST_ALL_PREFIXES(BrowserTest, OpenAppWindowLikeNtp);
FRIEND_TEST_ALL_PREFIXES(BrowserTest, ShouldShowLocationBar);
FRIEND_TEST_ALL_PREFIXES(StartupBrowserCreatorTest, OpenAppShortcutNoPref);
FRIEND_TEST_ALL_PREFIXES(StartupBrowserCreatorTest, OpenAppShortcutTabPref);
class InterstitialObserver;
// Used to describe why a tab is being detached. This is used by
// TabDetachedAtImpl.
enum DetachType {
// Result of TabDetachedAt.
// Result of TabReplacedAt.
// Result of the tab strip not having any significant tabs.
// Describes where the bookmark bar state change originated from.
enum BookmarkBarStateChangeReason {
// From the constructor.
// Change is the result of the active tab changing.
// Change is the result of the bookmark bar pref changing.
// Change is the result of a state change in the active tab.
// Change is the result of window toggling in/out of fullscreen mode.
// Overridden from content::WebContentsDelegate:
content::WebContents* OpenURLFromTab(
content::WebContents* source,
const content::OpenURLParams& params) override;
void NavigationStateChanged(content::WebContents* source,
content::InvalidateTypes changed_flags) override;
void VisibleSSLStateChanged(const content::WebContents* source) override;
void AddNewContents(content::WebContents* source,
content::WebContents* new_contents,
WindowOpenDisposition disposition,
const gfx::Rect& initial_rect,
bool user_gesture,
bool* was_blocked) override;
void ActivateContents(content::WebContents* contents) override;
void DeactivateContents(content::WebContents* contents) override;
void LoadingStateChanged(content::WebContents* source,
bool to_different_document) override;
void CloseContents(content::WebContents* source) override;
void MoveContents(content::WebContents* source,
const gfx::Rect& pos) override;
bool IsPopupOrPanel(const content::WebContents* source) const override;
void UpdateTargetURL(content::WebContents* source, const GURL& url) override;
void ContentsMouseEvent(content::WebContents* source,
const gfx::Point& location,
bool motion) override;
void ContentsZoomChange(bool zoom_in) override;
bool TakeFocus(content::WebContents* source, bool reverse) override;
gfx::Rect GetRootWindowResizerRect() const override;
void BeforeUnloadFired(content::WebContents* source,
bool proceed,
bool* proceed_to_fire_unload) override;
bool ShouldFocusLocationBarByDefault(content::WebContents* source) override;
void ViewSourceForTab(content::WebContents* source,
const GURL& page_url) override;
void ViewSourceForFrame(content::WebContents* source,
const GURL& frame_url,
const content::PageState& frame_page_state) override;
void ShowRepostFormWarningDialog(content::WebContents* source) override;
bool ShouldCreateWebContents(
content::WebContents* web_contents,
int route_id,
int main_frame_route_id,
WindowContainerType window_container_type,
const base::string16& frame_name,
const GURL& target_url,
const std::string& partition_id,
content::SessionStorageNamespace* session_storage_namespace) override;
void WebContentsCreated(content::WebContents* source_contents,
int opener_render_frame_id,
const base::string16& frame_name,
const GURL& target_url,
content::WebContents* new_contents) override;
void RendererUnresponsive(content::WebContents* source) override;
void RendererResponsive(content::WebContents* source) override;
void WorkerCrashed(content::WebContents* source) override;
void DidNavigateMainFramePostCommit(
content::WebContents* web_contents) override;
content::JavaScriptDialogManager* GetJavaScriptDialogManager(
content::WebContents* source) override;
content::ColorChooser* OpenColorChooser(
content::WebContents* web_contents,
SkColor color,
const std::vector<content::ColorSuggestion>& suggestions) override;
void RunFileChooser(content::WebContents* web_contents,
const content::FileChooserParams& params) override;
void EnumerateDirectory(content::WebContents* web_contents,
int request_id,
const base::FilePath& path) override;
bool EmbedsFullscreenWidget() const override;
void EnterFullscreenModeForTab(content::WebContents* web_contents,
const GURL& origin) override;
void ExitFullscreenModeForTab(content::WebContents* web_contents) override;
bool IsFullscreenForTabOrPending(
const content::WebContents* web_contents) const override;
void RegisterProtocolHandler(content::WebContents* web_contents,
const std::string& protocol,
const GURL& url,
bool user_gesture) override;
void UnregisterProtocolHandler(content::WebContents* web_contents,
const std::string& protocol,
const GURL& url,
bool user_gesture) override;
void UpdatePreferredSize(content::WebContents* source,
const gfx::Size& pref_size) override;
void ResizeDueToAutoResize(content::WebContents* source,
const gfx::Size& new_size) override;
void FindReply(content::WebContents* web_contents,
int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update) override;
void RequestToLockMouse(content::WebContents* web_contents,
bool user_gesture,
bool last_unlocked_by_target) override;
void LostMouseLock() override;
void RequestMediaAccessPermission(
content::WebContents* web_contents,
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback) override;
bool CheckMediaAccessPermission(content::WebContents* web_contents,
const GURL& security_origin,
content::MediaStreamType type) override;
bool RequestPpapiBrokerPermission(
content::WebContents* web_contents,
const GURL& url,
const base::FilePath& plugin_path,
const base::Callback<void(bool)>& callback) override;
gfx::Size GetSizeForNewRenderView(
content::WebContents* web_contents) const override;
// Overridden from CoreTabHelperDelegate:
// Note that the caller is responsible for deleting |old_contents|.
void SwapTabContents(content::WebContents* old_contents,
content::WebContents* new_contents,
bool did_start_load,
bool did_finish_load) override;
bool CanReloadContents(content::WebContents* web_contents) const override;
bool CanSaveContents(content::WebContents* web_contents) const override;
// Overridden from SearchEngineTabHelperDelegate:
void ConfirmAddSearchProvider(TemplateURL* template_url,
Profile* profile) override;
// Overridden from SearchTabHelperDelegate:
void NavigateOnThumbnailClick(const GURL& url,
WindowOpenDisposition disposition,
content::WebContents* source_contents) override;
void OnWebContentsInstantSupportDisabled(
const content::WebContents* web_contents) override;
OmniboxView* GetOmniboxView() override;
std::set<std::string> GetOpenUrls() override;
// Overridden from WebContentsModalDialogManagerDelegate:
void SetWebContentsBlocked(content::WebContents* web_contents,
bool blocked) override;
web_modal::WebContentsModalDialogHost* GetWebContentsModalDialogHost()
// Overridden from BookmarkTabHelperDelegate:
void URLStarredChanged(content::WebContents* web_contents,
bool starred) override;
// Overridden from ZoomObserver:
void OnZoomChanged(
const ui_zoom::ZoomController::ZoomChangedEventData& data) override;
// Overridden from SelectFileDialog::Listener:
void FileSelected(const base::FilePath& path,
int index,
void* params) override;
void FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
int index,
void* params) override;
// Overridden from content::NotificationObserver:
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// Overridden from extensions::ExtensionRegistryObserver:
void OnExtensionUninstalled(content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UninstallReason reason) override;
void OnExtensionLoaded(content::BrowserContext* browser_context,
const extensions::Extension* extension) override;
void OnExtensionUnloaded(
content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UnloadedExtensionInfo::Reason reason) override;
// Overridden from translate::ContentTranslateDriver::Observer:
void OnIsPageTranslatedChanged(content::WebContents* source) override;
void OnTranslateEnabledChanged(content::WebContents* source) override;
// Command and state updating ///////////////////////////////////////////////
// Handle changes to kDevTools preference.
void OnDevToolsDisabledChanged();
// UI update coalescing and handling ////////////////////////////////////////
// Asks the toolbar (and as such the location bar) to update its state to
// reflect the current tab's current URL, security state, etc.
// If |should_restore_state| is true, we're switching (back?) to this tab and
// should restore any previous location bar state (such as user editing) as
// well.
void UpdateToolbar(bool should_restore_state);
// Does one or both of the following for each bit in |changed_flags|:
// . If the update should be processed immediately, it is.
// . If the update should processed asynchronously (to avoid lots of ui
// updates), then scheduled_updates_ is updated for the |source| and update
// pair and a task is scheduled (assuming it isn't running already)
// that invokes ProcessPendingUIUpdates.
void ScheduleUIUpdate(content::WebContents* source,
unsigned changed_flags);
// Processes all pending updates to the UI that have been scheduled by
// ScheduleUIUpdate in scheduled_updates_.
void ProcessPendingUIUpdates();
// Removes all entries from scheduled_updates_ whose source is contents.
void RemoveScheduledUpdatesFor(content::WebContents* contents);
// Getters for UI ///////////////////////////////////////////////////////////
// TODO(beng): remove, and provide AutomationProvider a better way to access
// the LocationBarView's edit.
friend class AutomationProvider;
friend class BrowserProxy;
// Returns the StatusBubble from the current toolbar. It is possible for
// this to return NULL if called before the toolbar has initialized.
// TODO(beng): remove this.
StatusBubble* GetStatusBubble();
// Session restore functions ////////////////////////////////////////////////
// Notifies the history database of the index for all tabs whose index is
// >= index.
void SyncHistoryWithTabs(int index);
// In-progress download termination handling /////////////////////////////////
// Called when the window is closing to check if potential in-progress
// downloads should prevent it from closing.
// Returns true if the window can close, false otherwise.
bool CanCloseWithInProgressDownloads();
// Assorted utility functions ///////////////////////////////////////////////
// Sets the specified browser as the delegate of the WebContents and all the
// associated tab helpers that are needed. If |set_delegate| is true, this
// browser object is set as a delegate for |web_contents| components, else
// is is removed as a delegate.
void SetAsDelegate(content::WebContents* web_contents, bool set_delegate);
// Shows the Find Bar, optionally selecting the next entry that matches the
// existing search string for that Tab. |forward_direction| controls the
// search direction.
void FindInPage(bool find_next, bool forward_direction);
// Closes the frame.
// TODO(beng): figure out if we need this now that the frame itself closes
// after a return to the message loop.
void CloseFrame();
void TabDetachedAtImpl(content::WebContents* contents,
int index,
DetachType type);
// Shared code between Reload() and ReloadIgnoringCache().
void ReloadInternal(WindowOpenDisposition disposition, bool ignore_cache);
// Returns true if the Browser window supports a location bar. Having support
// for the location bar does not mean it will be visible.
bool SupportsLocationBar() const;
// Returns true if the Browser window should show the location bar.
bool ShouldShowLocationBar() const;
// Returns true if the Browser window should use a web app style frame.
bool ShouldUseWebAppFrame() const;
// Implementation of SupportsWindowFeature and CanSupportWindowFeature. If
// |check_fullscreen| is true, the set of features reflect the actual state of
// the browser, otherwise the set of features reflect the possible state of
// the browser.
bool SupportsWindowFeatureImpl(WindowFeature feature,
bool check_fullscreen) const;
// Resets |bookmark_bar_state_| based on the active tab. Notifies the
// BrowserWindow if necessary.
void UpdateBookmarkBarState(BookmarkBarStateChangeReason reason);
bool ShouldHideUIForFullscreen() const;
// Creates a BackgroundContents if appropriate; return true if one was
// created.
bool MaybeCreateBackgroundContents(
int route_id,
int main_frame_route_id,
content::WebContents* opener_web_contents,
const base::string16& frame_name,
const GURL& target_url,
const std::string& partition_id,
content::SessionStorageNamespace* session_storage_namespace);
// Data members /////////////////////////////////////////////////////////////
std::vector<InterstitialObserver*> interstitial_observers_;
content::NotificationRegistrar registrar_;
PrefChangeRegistrar profile_pref_registrar_;
// This Browser's type.
const Type type_;
// This Browser's profile.
Profile* const profile_;
// This Browser's window.
BrowserWindow* window_;
// Manages popup windows (bubbles, tab-modals) visible overlapping this
// window. JS alerts are not handled by this manager.
scoped_ptr<web_modal::PopupManager> popup_manager_;
scoped_ptr<TabStripModelDelegate> tab_strip_model_delegate_;
scoped_ptr<TabStripModel> tab_strip_model_;
// The application name that is also the name of the window to the shell.
// This name should be set when:
// 1) we launch an application via an application shortcut or extension API.
// 2) we launch an undocked devtool window.
std::string app_name_;
// True if the source is trusted (i.e. we do not need to show the URL in a
// a popup window). Also used to determine which app windows to save and
// restore on Chrome OS.
bool is_trusted_source_;
// Unique identifier of this browser for session restore. This id is only
// unique within the current session, and is not guaranteed to be unique
// across sessions.
const SessionID session_id_;
// The model for the toolbar view.
scoped_ptr<ToolbarModel> toolbar_model_;
// The model for the "active" search state. There are per-tab search models
// as well. When a tab is active its model is kept in sync with this one.
// When a new tab is activated its model state is propagated to this active
// model. This way, observers only have to attach to this single model for
// updates, and don't have to worry about active tab changes directly.
scoped_ptr<SearchModel> search_model_;
// UI update coalescing and handling ////////////////////////////////////////
typedef std::map<const content::WebContents*, int> UpdateMap;
// Maps from WebContents to pending UI updates that need to be processed.
// We don't update things like the URL or tab title right away to avoid
// flickering and extra painting.
// See ScheduleUIUpdate and ProcessPendingUIUpdates.
UpdateMap scheduled_updates_;
// In-progress download termination handling /////////////////////////////////
enum CancelDownloadConfirmationState {
NOT_PROMPTED, // We have not asked the user.
WAITING_FOR_RESPONSE, // We have asked the user and have not received a
// reponse yet.
RESPONSE_RECEIVED // The user was prompted and made a decision already.
// State used to figure-out whether we should prompt the user for confirmation
// when the browser is closed with in-progress downloads.
CancelDownloadConfirmationState cancel_download_confirmation_state_;
// Override values for the bounds of the window and its maximized or minimized
// state.
// These are supplied by callers that don't want to use the default values.
// The default values are typically loaded from local state (last session),
// obtained from the last window of the same type, or obtained from the
// shell shortcut's startup info.
gfx::Rect override_bounds_;
ui::WindowShowState initial_show_state_;
// Tracks when this browser is being created by session restore.
bool is_session_restore_;
const chrome::HostDesktopType host_desktop_type_;
scoped_ptr<chrome::UnloadController> unload_controller_;
scoped_ptr<chrome::FastUnloadController> fast_unload_controller_;
// The Find Bar. This may be NULL if there is no Find Bar, and if it is
// non-NULL, it may or may not be visible.
scoped_ptr<FindBarController> find_bar_controller_;
// Dialog box used for opening and saving files.
scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
// Keep track of the encoding auto detect pref.
BooleanPrefMember encoding_auto_detect_;
// Helper which implements the ContentSettingBubbleModel interface.
// Helper which implements the ToolbarModelDelegate interface.
scoped_ptr<BrowserToolbarModelDelegate> toolbar_model_delegate_;
// A delegate that handles the details of updating the "active"
// |search_model_| state with the tab's state.
scoped_ptr<SearchDelegate> search_delegate_;
// Helper which implements the TabRestoreServiceDelegate interface.
scoped_ptr<BrowserTabRestoreServiceDelegate> tab_restore_service_delegate_;
// Helper which implements the SyncedWindowDelegate interface.
scoped_ptr<BrowserSyncedWindowDelegate> synced_window_delegate_;
scoped_ptr<BrowserInstantController> instant_controller_;
// Helper which handles bookmark app specific browser configuration.
scoped_ptr<extensions::BookmarkAppBrowserController> bookmark_app_controller_;
BookmarkBar::State bookmark_bar_state_;
scoped_ptr<ExclusiveAccessManager> exclusive_access_manager_;
scoped_ptr<extensions::WindowController> extension_window_controller_;
scoped_ptr<chrome::BrowserCommandController> command_controller_;
// True if the browser window has been shown at least once.
bool window_has_shown_;
scoped_ptr<ValidationMessageBubble> validation_message_bubble_;
// The following factory is used for chrome update coalescing.
base::WeakPtrFactory<Browser> chrome_updater_factory_;
// The following factory is used to close the frame at a later time.
base::WeakPtrFactory<Browser> weak_factory_;