| // 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 "chrome/browser/sessions/session_service.h" |
| |
| #include <algorithm> |
| #include <set> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/command_line.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/metrics/histogram.h" |
| #include "base/pickle.h" |
| #include "base/threading/thread.h" |
| #include "chrome/browser/background/background_mode_manager.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/chrome_notification_types.h" |
| #include "chrome/browser/defaults.h" |
| #include "chrome/browser/extensions/tab_helper.h" |
| #include "chrome/browser/prefs/session_startup_pref.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/browser/profiles/profile_manager.h" |
| #include "chrome/browser/sessions/base_session_service_delegate_impl.h" |
| #include "chrome/browser/sessions/session_command.h" |
| #include "chrome/browser/sessions/session_data_deleter.h" |
| #include "chrome/browser/sessions/session_restore.h" |
| #include "chrome/browser/sessions/session_service_utils.h" |
| #include "chrome/browser/sessions/session_tab_helper.h" |
| #include "chrome/browser/sessions/session_types.h" |
| #include "chrome/browser/ui/browser_iterator.h" |
| #include "chrome/browser/ui/browser_list.h" |
| #include "chrome/browser/ui/browser_tabstrip.h" |
| #include "chrome/browser/ui/browser_window.h" |
| #include "chrome/browser/ui/host_desktop.h" |
| #include "chrome/browser/ui/startup/startup_browser_creator.h" |
| #include "chrome/browser/ui/tabs/tab_strip_model.h" |
| #include "components/sessions/content/content_serialized_navigation_builder.h" |
| #include "components/startup_metric_utils/startup_metric_utils.h" |
| #include "content/public/browser/navigation_details.h" |
| #include "content/public/browser/navigation_entry.h" |
| #include "content/public/browser/notification_details.h" |
| #include "content/public/browser/notification_service.h" |
| #include "content/public/browser/session_storage_namespace.h" |
| #include "content/public/browser/web_contents.h" |
| #include "extensions/common/extension.h" |
| |
| #if defined(OS_MACOSX) |
| #include "chrome/browser/app_controller_mac.h" |
| #endif |
| |
| using base::Time; |
| using content::NavigationEntry; |
| using content::WebContents; |
| using sessions::ContentSerializedNavigationBuilder; |
| using sessions::SerializedNavigationEntry; |
| |
| // Every kWritesPerReset commands triggers recreating the file. |
| static const int kWritesPerReset = 250; |
| |
| // SessionService ------------------------------------------------------------- |
| |
| SessionService::SessionService(Profile* profile) |
| : BaseSessionServiceDelegateImpl(true), |
| profile_(profile), |
| base_session_service_( |
| new BaseSessionService(BaseSessionService::SESSION_RESTORE, |
| profile->GetPath(), |
| this)), |
| has_open_trackable_browsers_(false), |
| move_on_new_browser_(false), |
| save_delay_in_millis_(base::TimeDelta::FromMilliseconds(2500)), |
| save_delay_in_mins_(base::TimeDelta::FromMinutes(10)), |
| save_delay_in_hrs_(base::TimeDelta::FromHours(8)), |
| force_browser_not_alive_with_no_windows_(false), |
| weak_factory_(this) { |
| // We should never be created when incognito. |
| DCHECK(!profile->IsOffTheRecord()); |
| Init(); |
| } |
| |
| SessionService::SessionService(const base::FilePath& save_path) |
| : BaseSessionServiceDelegateImpl(false), |
| profile_(NULL), |
| base_session_service_( |
| new BaseSessionService(BaseSessionService::SESSION_RESTORE, |
| save_path, |
| this)), |
| has_open_trackable_browsers_(false), |
| move_on_new_browser_(false), |
| save_delay_in_millis_(base::TimeDelta::FromMilliseconds(2500)), |
| save_delay_in_mins_(base::TimeDelta::FromMinutes(10)), |
| save_delay_in_hrs_(base::TimeDelta::FromHours(8)), |
| force_browser_not_alive_with_no_windows_(false), |
| weak_factory_(this) { |
| Init(); |
| } |
| |
| SessionService::~SessionService() { |
| // The BrowserList should outlive the SessionService since it's static and |
| // the SessionService is a KeyedService. |
| BrowserList::RemoveObserver(this); |
| base_session_service_->Save(); |
| } |
| |
| bool SessionService::ShouldNewWindowStartSession() { |
| // ChromeOS and OSX have different ideas of application lifetime than |
| // the other platforms. |
| // On ChromeOS opening a new window should never start a new session. |
| #if defined(OS_CHROMEOS) |
| if (!force_browser_not_alive_with_no_windows_) |
| return false; |
| #endif |
| if (!has_open_trackable_browsers_ && |
| !StartupBrowserCreator::InSynchronousProfileLaunch() && |
| !SessionRestore::IsRestoring(profile()) |
| #if defined(OS_MACOSX) |
| // On OSX, a new window should not start a new session if it was opened |
| // from the dock or the menubar. |
| && !app_controller_mac::IsOpeningNewWindow() |
| #endif // OS_MACOSX |
| ) { |
| return true; |
| } |
| return false; |
| } |
| |
| bool SessionService::RestoreIfNecessary(const std::vector<GURL>& urls_to_open) { |
| return RestoreIfNecessary(urls_to_open, NULL); |
| } |
| |
| void SessionService::ResetFromCurrentBrowsers() { |
| ScheduleResetCommands(); |
| } |
| |
| void SessionService::MoveCurrentSessionToLastSession() { |
| pending_tab_close_ids_.clear(); |
| window_closing_ids_.clear(); |
| pending_window_close_ids_.clear(); |
| |
| base_session_service_->MoveCurrentSessionToLastSession(); |
| } |
| |
| void SessionService::DeleteLastSession() { |
| base_session_service_->DeleteLastSession(); |
| } |
| |
| void SessionService::SetTabWindow(const SessionID& window_id, |
| const SessionID& tab_id) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand(CreateSetTabWindowCommand(window_id, tab_id).Pass()); |
| } |
| |
| void SessionService::SetWindowBounds(const SessionID& window_id, |
| const gfx::Rect& bounds, |
| ui::WindowShowState show_state) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand( |
| CreateSetWindowBoundsCommand(window_id, bounds, show_state).Pass()); |
| } |
| |
| void SessionService::SetTabIndexInWindow(const SessionID& window_id, |
| const SessionID& tab_id, |
| int new_index) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand(CreateSetTabIndexInWindowCommand(tab_id, new_index).Pass()); |
| } |
| |
| void SessionService::SetPinnedState(const SessionID& window_id, |
| const SessionID& tab_id, |
| bool is_pinned) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand(CreatePinnedStateCommand(tab_id, is_pinned).Pass()); |
| } |
| |
| void SessionService::TabClosed(const SessionID& window_id, |
| const SessionID& tab_id, |
| bool closed_by_user_gesture) { |
| if (!tab_id.id()) |
| return; // Hapens when the tab is replaced. |
| |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| IdToRange::iterator i = tab_to_available_range_.find(tab_id.id()); |
| if (i != tab_to_available_range_.end()) |
| tab_to_available_range_.erase(i); |
| |
| if (find(pending_window_close_ids_.begin(), pending_window_close_ids_.end(), |
| window_id.id()) != pending_window_close_ids_.end()) { |
| // Tab is in last window. Don't commit it immediately, instead add it to the |
| // list of tabs to close. If the user creates another window, the close is |
| // committed. |
| pending_tab_close_ids_.insert(tab_id.id()); |
| } else if (find(window_closing_ids_.begin(), window_closing_ids_.end(), |
| window_id.id()) != window_closing_ids_.end() || |
| !IsOnlyOneTabLeft() || |
| closed_by_user_gesture) { |
| // Close is the result of one of the following: |
| // . window close (and it isn't the last window). |
| // . closing a tab and there are other windows/tabs open. |
| // . closed by a user gesture. |
| // In all cases we need to mark the tab as explicitly closed. |
| ScheduleCommand(CreateTabClosedCommand(tab_id.id()).Pass()); |
| } else { |
| // User closed the last tab in the last tabbed browser. Don't mark the |
| // tab closed. |
| pending_tab_close_ids_.insert(tab_id.id()); |
| has_open_trackable_browsers_ = false; |
| } |
| } |
| |
| void SessionService::WindowOpened(Browser* browser) { |
| if (!ShouldTrackBrowser(browser)) |
| return; |
| |
| RestoreIfNecessary(std::vector<GURL>(), browser); |
| SetWindowType(browser->session_id(), |
| browser->type(), |
| browser->is_app() ? TYPE_APP : TYPE_NORMAL); |
| SetWindowAppName(browser->session_id(), browser->app_name()); |
| } |
| |
| void SessionService::WindowClosing(const SessionID& window_id) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| // The window is about to close. If there are other tabbed browsers with the |
| // same original profile commit the close immediately. |
| // |
| // NOTE: if the user chooses the exit menu item session service is destroyed |
| // and this code isn't hit. |
| if (has_open_trackable_browsers_) { |
| // Closing a window can never make has_open_trackable_browsers_ go from |
| // false to true, so only update it if already true. |
| has_open_trackable_browsers_ = HasOpenTrackableBrowsers(window_id); |
| } |
| bool use_pending_close = !has_open_trackable_browsers_; |
| if (!use_pending_close) { |
| // Somewhat outside of "normal behavior" is profile locking. In this case |
| // (when IsSiginRequired has already been set True), we're closing all |
| // browser windows in turn but want them all to be restored when the user |
| // unlocks. To accomplish this, we do a "pending close" on all windows |
| // instead of just the last one (which has no open_trackable_browsers). |
| // http://crbug.com/356818 |
| // |
| // Some editions (like iOS) don't have a profile_manager and some tests |
| // don't supply one so be lenient. |
| if (g_browser_process) { |
| ProfileManager* profile_manager = g_browser_process->profile_manager(); |
| if (profile_manager) { |
| ProfileInfoCache& profile_info = |
| profile_manager->GetProfileInfoCache(); |
| size_t profile_index = profile_info.GetIndexOfProfileWithPath( |
| profile()->GetPath()); |
| use_pending_close = profile_index != std::string::npos && |
| profile_info.ProfileIsSigninRequiredAtIndex(profile_index); |
| } |
| } |
| } |
| if (use_pending_close) |
| pending_window_close_ids_.insert(window_id.id()); |
| else |
| window_closing_ids_.insert(window_id.id()); |
| } |
| |
| void SessionService::WindowClosed(const SessionID& window_id) { |
| if (!ShouldTrackChangesToWindow(window_id)) { |
| // The last window may be one that is not tracked. |
| MaybeDeleteSessionOnlyData(); |
| return; |
| } |
| |
| windows_tracking_.erase(window_id.id()); |
| |
| if (window_closing_ids_.find(window_id.id()) != window_closing_ids_.end()) { |
| window_closing_ids_.erase(window_id.id()); |
| ScheduleCommand(CreateWindowClosedCommand(window_id.id()).Pass()); |
| } else if (pending_window_close_ids_.find(window_id.id()) == |
| pending_window_close_ids_.end()) { |
| // We'll hit this if user closed the last tab in a window. |
| has_open_trackable_browsers_ = HasOpenTrackableBrowsers(window_id); |
| if (!has_open_trackable_browsers_) |
| pending_window_close_ids_.insert(window_id.id()); |
| else |
| ScheduleCommand(CreateWindowClosedCommand(window_id.id()).Pass()); |
| } |
| MaybeDeleteSessionOnlyData(); |
| } |
| |
| void SessionService::TabInserted(WebContents* contents) { |
| SessionTabHelper* session_tab_helper = |
| SessionTabHelper::FromWebContents(contents); |
| if (!ShouldTrackChangesToWindow(session_tab_helper->window_id())) |
| return; |
| SetTabWindow(session_tab_helper->window_id(), |
| session_tab_helper->session_id()); |
| extensions::TabHelper* extensions_tab_helper = |
| extensions::TabHelper::FromWebContents(contents); |
| if (extensions_tab_helper && |
| extensions_tab_helper->extension_app()) { |
| SetTabExtensionAppID( |
| session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| extensions_tab_helper->extension_app()->id()); |
| } |
| |
| // Record the association between the SessionStorageNamespace and the |
| // tab. |
| // |
| // TODO(ajwong): This should be processing the whole map rather than |
| // just the default. This in particular will not work for tabs with only |
| // isolated apps which won't have a default partition. |
| content::SessionStorageNamespace* session_storage_namespace = |
| contents->GetController().GetDefaultSessionStorageNamespace(); |
| ScheduleCommand(CreateSessionStorageAssociatedCommand( |
| session_tab_helper->session_id(), |
| session_storage_namespace->persistent_id()).Pass()); |
| session_storage_namespace->SetShouldPersist(true); |
| } |
| |
| void SessionService::TabClosing(WebContents* contents) { |
| // Allow the associated sessionStorage to get deleted; it won't be needed |
| // in the session restore. |
| content::SessionStorageNamespace* session_storage_namespace = |
| contents->GetController().GetDefaultSessionStorageNamespace(); |
| session_storage_namespace->SetShouldPersist(false); |
| SessionTabHelper* session_tab_helper = |
| SessionTabHelper::FromWebContents(contents); |
| TabClosed(session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| contents->GetClosedByUserGesture()); |
| RecordSessionUpdateHistogramData(content::NOTIFICATION_WEB_CONTENTS_DESTROYED, |
| &last_updated_tab_closed_time_); |
| } |
| |
| void SessionService::SetWindowType(const SessionID& window_id, |
| Browser::Type type, |
| AppType app_type) { |
| SessionWindow::WindowType window_type = WindowTypeForBrowserType(type); |
| if (!ShouldRestoreWindowOfType(window_type, app_type)) |
| return; |
| |
| windows_tracking_.insert(window_id.id()); |
| |
| // The user created a new tabbed browser with our profile. Commit any |
| // pending closes. |
| CommitPendingCloses(); |
| |
| has_open_trackable_browsers_ = true; |
| move_on_new_browser_ = true; |
| |
| ScheduleCommand(CreateSetWindowTypeCommand(window_id, window_type).Pass()); |
| } |
| |
| void SessionService::SetWindowAppName( |
| const SessionID& window_id, |
| const std::string& app_name) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand(CreateSetWindowAppNameCommand(window_id, app_name).Pass()); |
| } |
| |
| void SessionService::TabNavigationPathPrunedFromBack(const SessionID& window_id, |
| const SessionID& tab_id, |
| int count) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand( |
| CreateTabNavigationPathPrunedFromBackCommand(tab_id, count).Pass()); |
| } |
| |
| void SessionService::TabNavigationPathPrunedFromFront( |
| const SessionID& window_id, |
| const SessionID& tab_id, |
| int count) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| // Update the range of indices. |
| if (tab_to_available_range_.find(tab_id.id()) != |
| tab_to_available_range_.end()) { |
| std::pair<int, int>& range = tab_to_available_range_[tab_id.id()]; |
| range.first = std::max(0, range.first - count); |
| range.second = std::max(0, range.second - count); |
| } |
| |
| ScheduleCommand( |
| CreateTabNavigationPathPrunedFromFrontCommand(tab_id, count).Pass()); |
| } |
| |
| void SessionService::UpdateTabNavigation( |
| const SessionID& window_id, |
| const SessionID& tab_id, |
| const SerializedNavigationEntry& navigation) { |
| if (!ShouldTrackEntry(navigation.virtual_url()) || |
| !ShouldTrackChangesToWindow(window_id)) { |
| return; |
| } |
| |
| if (tab_to_available_range_.find(tab_id.id()) != |
| tab_to_available_range_.end()) { |
| std::pair<int, int>& range = tab_to_available_range_[tab_id.id()]; |
| range.first = std::min(navigation.index(), range.first); |
| range.second = std::max(navigation.index(), range.second); |
| } |
| ScheduleCommand(CreateUpdateTabNavigationCommand(tab_id, navigation).Pass()); |
| } |
| |
| void SessionService::TabRestored(WebContents* tab, bool pinned) { |
| SessionTabHelper* session_tab_helper = SessionTabHelper::FromWebContents(tab); |
| if (!ShouldTrackChangesToWindow(session_tab_helper->window_id())) |
| return; |
| |
| BuildCommandsForTab(session_tab_helper->window_id(), tab, -1, pinned, NULL); |
| base_session_service_->StartSaveTimer(); |
| } |
| |
| void SessionService::SetSelectedNavigationIndex(const SessionID& window_id, |
| const SessionID& tab_id, |
| int index) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| if (tab_to_available_range_.find(tab_id.id()) != |
| tab_to_available_range_.end()) { |
| if (index < tab_to_available_range_[tab_id.id()].first || |
| index > tab_to_available_range_[tab_id.id()].second) { |
| // The new index is outside the range of what we've archived, schedule |
| // a reset. |
| ResetFromCurrentBrowsers(); |
| return; |
| } |
| } |
| ScheduleCommand( |
| CreateSetSelectedNavigationIndexCommand(tab_id, index).Pass()); |
| } |
| |
| void SessionService::SetSelectedTabInWindow(const SessionID& window_id, |
| int index) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand(CreateSetSelectedTabInWindowCommand(window_id, index).Pass()); |
| } |
| |
| void SessionService::SetTabUserAgentOverride( |
| const SessionID& window_id, |
| const SessionID& tab_id, |
| const std::string& user_agent_override) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand( |
| CreateSetTabUserAgentOverrideCommand(tab_id, user_agent_override).Pass()); |
| } |
| |
| void SessionService::SetTabExtensionAppID( |
| const SessionID& window_id, |
| const SessionID& tab_id, |
| const std::string& extension_app_id) { |
| if (!ShouldTrackChangesToWindow(window_id)) |
| return; |
| |
| ScheduleCommand( |
| CreateSetTabExtensionAppIDCommand(tab_id, extension_app_id).Pass()); |
| } |
| |
| base::CancelableTaskTracker::TaskId SessionService::GetLastSession( |
| const SessionCallback& callback, |
| base::CancelableTaskTracker* tracker) { |
| // OnGotSessionCommands maps the SessionCommands to browser state, then run |
| // the callback. |
| return base_session_service_->ScheduleGetLastSessionCommands( |
| base::Bind(&SessionService::OnGotSessionCommands, |
| weak_factory_.GetWeakPtr(), |
| callback), |
| tracker); |
| } |
| |
| void SessionService::OnSavedCommands() { |
| RecordSessionUpdateHistogramData(chrome::NOTIFICATION_SESSION_SERVICE_SAVED, |
| &last_updated_save_time_); |
| content::NotificationService::current()->Notify( |
| chrome::NOTIFICATION_SESSION_SERVICE_SAVED, |
| content::Source<Profile>(profile()), |
| content::NotificationService::NoDetails()); |
| } |
| |
| void SessionService::Init() { |
| // Register for the notifications we're interested in. |
| registrar_.Add(this, content::NOTIFICATION_NAV_LIST_PRUNED, |
| content::NotificationService::AllSources()); |
| registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_CHANGED, |
| content::NotificationService::AllSources()); |
| registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED, |
| content::NotificationService::AllSources()); |
| registrar_.Add( |
| this, chrome::NOTIFICATION_TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED, |
| content::NotificationService::AllSources()); |
| |
| BrowserList::AddObserver(this); |
| } |
| |
| bool SessionService::ShouldRestoreWindowOfType( |
| SessionWindow::WindowType window_type, |
| AppType app_type) const { |
| #if defined(OS_CHROMEOS) |
| // Restore app popups for ChromeOS alone. |
| if (window_type == SessionWindow::TYPE_POPUP && app_type == TYPE_APP) |
| return true; |
| #endif |
| |
| return window_type == SessionWindow::TYPE_TABBED; |
| } |
| |
| void SessionService::RemoveUnusedRestoreWindows( |
| std::vector<SessionWindow*>* window_list) { |
| std::vector<SessionWindow*>::iterator i = window_list->begin(); |
| while (i != window_list->end()) { |
| SessionWindow* window = *i; |
| if (!ShouldRestoreWindowOfType(window->type, |
| window->app_name.empty() ? TYPE_NORMAL : |
| TYPE_APP)) { |
| delete window; |
| window_list->erase(i++); |
| } else { |
| ++i; |
| } |
| } |
| } |
| |
| bool SessionService::RestoreIfNecessary(const std::vector<GURL>& urls_to_open, |
| Browser* browser) { |
| if (ShouldNewWindowStartSession()) { |
| // We're going from no tabbed browsers to a tabbed browser (and not in |
| // process startup), restore the last session. |
| if (move_on_new_browser_) { |
| // Make the current session the last. |
| MoveCurrentSessionToLastSession(); |
| move_on_new_browser_ = false; |
| } |
| SessionStartupPref pref = StartupBrowserCreator::GetSessionStartupPref( |
| *CommandLine::ForCurrentProcess(), profile()); |
| if (pref.type == SessionStartupPref::LAST) { |
| SessionRestore::RestoreSession( |
| profile(), browser, |
| browser ? browser->host_desktop_type() : chrome::GetActiveDesktop(), |
| browser ? 0 : SessionRestore::ALWAYS_CREATE_TABBED_BROWSER, |
| urls_to_open); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void SessionService::Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) { |
| // All of our messages have the NavigationController as the source. |
| switch (type) { |
| case content::NOTIFICATION_NAV_LIST_PRUNED: { |
| WebContents* web_contents = |
| content::Source<content::NavigationController>(source).ptr()-> |
| GetWebContents(); |
| SessionTabHelper* session_tab_helper = |
| SessionTabHelper::FromWebContents(web_contents); |
| if (!session_tab_helper || web_contents->GetBrowserContext() != profile()) |
| return; |
| content::Details<content::PrunedDetails> pruned_details(details); |
| if (pruned_details->from_front) { |
| TabNavigationPathPrunedFromFront( |
| session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| pruned_details->count); |
| } else { |
| TabNavigationPathPrunedFromBack( |
| session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| web_contents->GetController().GetEntryCount()); |
| } |
| RecordSessionUpdateHistogramData(type, |
| &last_updated_nav_list_pruned_time_); |
| break; |
| } |
| |
| case content::NOTIFICATION_NAV_ENTRY_CHANGED: { |
| WebContents* web_contents = |
| content::Source<content::NavigationController>(source).ptr()-> |
| GetWebContents(); |
| SessionTabHelper* session_tab_helper = |
| SessionTabHelper::FromWebContents(web_contents); |
| if (!session_tab_helper || web_contents->GetBrowserContext() != profile()) |
| return; |
| content::Details<content::EntryChangedDetails> changed(details); |
| const SerializedNavigationEntry navigation = |
| ContentSerializedNavigationBuilder::FromNavigationEntry( |
| changed->index, *changed->changed_entry); |
| UpdateTabNavigation(session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| navigation); |
| break; |
| } |
| |
| case content::NOTIFICATION_NAV_ENTRY_COMMITTED: { |
| WebContents* web_contents = |
| content::Source<content::NavigationController>(source).ptr()-> |
| GetWebContents(); |
| SessionTabHelper* session_tab_helper = |
| SessionTabHelper::FromWebContents(web_contents); |
| if (!session_tab_helper || web_contents->GetBrowserContext() != profile()) |
| return; |
| int current_entry_index = |
| web_contents->GetController().GetCurrentEntryIndex(); |
| SetSelectedNavigationIndex( |
| session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| current_entry_index); |
| const SerializedNavigationEntry navigation = |
| ContentSerializedNavigationBuilder::FromNavigationEntry( |
| current_entry_index, |
| *web_contents->GetController().GetEntryAtIndex( |
| current_entry_index)); |
| UpdateTabNavigation( |
| session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| navigation); |
| content::Details<content::LoadCommittedDetails> changed(details); |
| if (changed->type == content::NAVIGATION_TYPE_NEW_PAGE || |
| changed->type == content::NAVIGATION_TYPE_EXISTING_PAGE) { |
| RecordSessionUpdateHistogramData(type, |
| &last_updated_nav_entry_commit_time_); |
| } |
| break; |
| } |
| |
| case chrome::NOTIFICATION_TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED: { |
| extensions::TabHelper* extension_tab_helper = |
| content::Source<extensions::TabHelper>(source).ptr(); |
| if (extension_tab_helper->web_contents()->GetBrowserContext() != |
| profile()) { |
| return; |
| } |
| if (extension_tab_helper->extension_app()) { |
| SessionTabHelper* session_tab_helper = |
| SessionTabHelper::FromWebContents( |
| extension_tab_helper->web_contents()); |
| SetTabExtensionAppID(session_tab_helper->window_id(), |
| session_tab_helper->session_id(), |
| extension_tab_helper->extension_app()->id()); |
| } |
| break; |
| } |
| |
| default: |
| NOTREACHED(); |
| } |
| } |
| |
| void SessionService::OnBrowserSetLastActive(Browser* browser) { |
| if (ShouldTrackBrowser(browser)) |
| ScheduleCommand(CreateSetActiveWindowCommand(browser->session_id()).Pass()); |
| } |
| |
| void SessionService::OnGotSessionCommands( |
| const SessionCallback& callback, |
| ScopedVector<SessionCommand> commands) { |
| ScopedVector<SessionWindow> valid_windows; |
| SessionID::id_type active_window_id = 0; |
| |
| startup_metric_utils::ScopedSlowStartupUMA |
| scoped_timer("Startup.SlowStartupSessionServiceCreateTabsAndWindows"); |
| |
| RestoreSessionFromCommands(commands, &valid_windows.get(), &active_window_id); |
| RemoveUnusedRestoreWindows(&valid_windows.get()); |
| |
| callback.Run(valid_windows.Pass(), active_window_id); |
| } |
| |
| void SessionService::BuildCommandsForTab(const SessionID& window_id, |
| WebContents* tab, |
| int index_in_window, |
| bool is_pinned, |
| IdToRange* tab_to_available_range) { |
| DCHECK(tab && window_id.id()); |
| SessionTabHelper* session_tab_helper = SessionTabHelper::FromWebContents(tab); |
| const SessionID& session_id(session_tab_helper->session_id()); |
| base_session_service_->AppendRebuildCommand( |
| CreateSetTabWindowCommand(window_id, session_id)); |
| |
| const int current_index = tab->GetController().GetCurrentEntryIndex(); |
| const int min_index = std::max(current_index - gMaxPersistNavigationCount, 0); |
| const int max_index = std::min(current_index + gMaxPersistNavigationCount, |
| tab->GetController().GetEntryCount()); |
| const int pending_index = tab->GetController().GetPendingEntryIndex(); |
| if (tab_to_available_range) { |
| (*tab_to_available_range)[session_id.id()] = |
| std::pair<int, int>(min_index, max_index); |
| } |
| |
| if (is_pinned) { |
| base_session_service_->AppendRebuildCommand( |
| CreatePinnedStateCommand(session_id, true)); |
| } |
| |
| extensions::TabHelper* extensions_tab_helper = |
| extensions::TabHelper::FromWebContents(tab); |
| if (extensions_tab_helper->extension_app()) { |
| base_session_service_->AppendRebuildCommand( |
| CreateSetTabExtensionAppIDCommand( |
| session_id, |
| extensions_tab_helper->extension_app()->id())); |
| } |
| |
| const std::string& ua_override = tab->GetUserAgentOverride(); |
| if (!ua_override.empty()) { |
| base_session_service_->AppendRebuildCommand( |
| CreateSetTabUserAgentOverrideCommand(session_id, ua_override)); |
| } |
| |
| for (int i = min_index; i < max_index; ++i) { |
| const NavigationEntry* entry = (i == pending_index) ? |
| tab->GetController().GetPendingEntry() : |
| tab->GetController().GetEntryAtIndex(i); |
| DCHECK(entry); |
| if (ShouldTrackEntry(entry->GetVirtualURL())) { |
| const SerializedNavigationEntry navigation = |
| ContentSerializedNavigationBuilder::FromNavigationEntry(i, *entry); |
| base_session_service_->AppendRebuildCommand( |
| CreateUpdateTabNavigationCommand(session_id, navigation)); |
| } |
| } |
| base_session_service_->AppendRebuildCommand( |
| CreateSetSelectedNavigationIndexCommand(session_id, |
| current_index)); |
| |
| if (index_in_window != -1) { |
| base_session_service_->AppendRebuildCommand( |
| CreateSetTabIndexInWindowCommand(session_id, |
| index_in_window)); |
| } |
| |
| // Record the association between the sessionStorage namespace and the tab. |
| content::SessionStorageNamespace* session_storage_namespace = |
| tab->GetController().GetDefaultSessionStorageNamespace(); |
| ScheduleCommand(CreateSessionStorageAssociatedCommand( |
| session_tab_helper->session_id(), |
| session_storage_namespace->persistent_id()).Pass()); |
| } |
| |
| void SessionService::BuildCommandsForBrowser( |
| Browser* browser, |
| IdToRange* tab_to_available_range, |
| std::set<SessionID::id_type>* windows_to_track) { |
| DCHECK(browser); |
| DCHECK(browser->session_id().id()); |
| |
| base_session_service_->AppendRebuildCommand(CreateSetWindowBoundsCommand( |
| browser->session_id(), |
| browser->window()->GetRestoredBounds(), |
| browser->window()->GetRestoredState())); |
| |
| base_session_service_->AppendRebuildCommand(CreateSetWindowTypeCommand( |
| browser->session_id(), |
| WindowTypeForBrowserType(browser->type()))); |
| |
| if (!browser->app_name().empty()) { |
| base_session_service_->AppendRebuildCommand(CreateSetWindowAppNameCommand( |
| browser->session_id(), |
| browser->app_name())); |
| } |
| |
| windows_to_track->insert(browser->session_id().id()); |
| TabStripModel* tab_strip = browser->tab_strip_model(); |
| for (int i = 0; i < tab_strip->count(); ++i) { |
| WebContents* tab = tab_strip->GetWebContentsAt(i); |
| DCHECK(tab); |
| BuildCommandsForTab(browser->session_id(), |
| tab, |
| i, |
| tab_strip->IsTabPinned(i), |
| tab_to_available_range); |
| } |
| |
| base_session_service_->AppendRebuildCommand( |
| CreateSetSelectedTabInWindowCommand( |
| browser->session_id(), |
| browser->tab_strip_model()->active_index())); |
| } |
| |
| void SessionService::BuildCommandsFromBrowsers( |
| IdToRange* tab_to_available_range, |
| std::set<SessionID::id_type>* windows_to_track) { |
| for (chrome::BrowserIterator it; !it.done(); it.Next()) { |
| Browser* browser = *it; |
| // Make sure the browser has tabs and a window. Browser's destructor |
| // removes itself from the BrowserList. When a browser is closed the |
| // destructor is not necessarily run immediately. This means it's possible |
| // for us to get a handle to a browser that is about to be removed. If |
| // the tab count is 0 or the window is NULL, the browser is about to be |
| // deleted, so we ignore it. |
| if (ShouldTrackBrowser(browser) && browser->tab_strip_model()->count() && |
| browser->window()) { |
| BuildCommandsForBrowser(browser, |
| tab_to_available_range, |
| windows_to_track); |
| } |
| } |
| } |
| |
| void SessionService::ScheduleResetCommands() { |
| base_session_service_->set_pending_reset(true); |
| base_session_service_->ClearPendingCommands(); |
| tab_to_available_range_.clear(); |
| windows_tracking_.clear(); |
| BuildCommandsFromBrowsers(&tab_to_available_range_, |
| &windows_tracking_); |
| if (!windows_tracking_.empty()) { |
| // We're lazily created on startup and won't get an initial batch of |
| // SetWindowType messages. Set these here to make sure our state is correct. |
| has_open_trackable_browsers_ = true; |
| move_on_new_browser_ = true; |
| } |
| base_session_service_->StartSaveTimer(); |
| } |
| |
| void SessionService::ScheduleCommand(scoped_ptr<SessionCommand> command) { |
| DCHECK(command); |
| if (ReplacePendingCommand(base_session_service_.get(), &command)) |
| return; |
| bool is_closing_command = IsClosingCommand(command.get()); |
| base_session_service_->ScheduleCommand(command.Pass()); |
| // Don't schedule a reset on tab closed/window closed. Otherwise we may |
| // lose tabs/windows we want to restore from if we exit right after this. |
| if (!base_session_service_->pending_reset() && |
| pending_window_close_ids_.empty() && |
| base_session_service_->commands_since_reset() >= kWritesPerReset && |
| !is_closing_command) { |
| ScheduleResetCommands(); |
| } |
| } |
| |
| void SessionService::CommitPendingCloses() { |
| for (PendingTabCloseIDs::iterator i = pending_tab_close_ids_.begin(); |
| i != pending_tab_close_ids_.end(); ++i) { |
| ScheduleCommand(CreateTabClosedCommand(*i).Pass()); |
| } |
| pending_tab_close_ids_.clear(); |
| |
| for (PendingWindowCloseIDs::iterator i = pending_window_close_ids_.begin(); |
| i != pending_window_close_ids_.end(); ++i) { |
| ScheduleCommand(CreateWindowClosedCommand(*i).Pass()); |
| } |
| pending_window_close_ids_.clear(); |
| } |
| |
| bool SessionService::IsOnlyOneTabLeft() const { |
| if (!profile() || profile()->AsTestingProfile()) { |
| // We're testing, always return false. |
| return false; |
| } |
| |
| int window_count = 0; |
| for (chrome::BrowserIterator it; !it.done(); it.Next()) { |
| Browser* browser = *it; |
| const SessionID::id_type window_id = browser->session_id().id(); |
| if (ShouldTrackBrowser(browser) && |
| window_closing_ids_.find(window_id) == window_closing_ids_.end()) { |
| if (++window_count > 1) |
| return false; |
| // By the time this is invoked the tab has been removed. As such, we use |
| // > 0 here rather than > 1. |
| if (browser->tab_strip_model()->count() > 0) |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool SessionService::HasOpenTrackableBrowsers( |
| const SessionID& window_id) const { |
| if (!profile() || profile()->AsTestingProfile()) { |
| // We're testing, always return true. |
| return true; |
| } |
| |
| for (chrome::BrowserIterator it; !it.done(); it.Next()) { |
| Browser* browser = *it; |
| const SessionID::id_type browser_id = browser->session_id().id(); |
| if (browser_id != window_id.id() && |
| window_closing_ids_.find(browser_id) == window_closing_ids_.end() && |
| ShouldTrackBrowser(browser)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool SessionService::ShouldTrackChangesToWindow( |
| const SessionID& window_id) const { |
| return windows_tracking_.find(window_id.id()) != windows_tracking_.end(); |
| } |
| |
| bool SessionService::ShouldTrackBrowser(Browser* browser) const { |
| if (browser->profile() != profile()) |
| return false; |
| // Never track app popup windows that do not have a trusted source (i.e. |
| // popup windows spawned by an app). If this logic changes, be sure to also |
| // change SessionRestoreImpl::CreateRestoredBrowser(). |
| if (browser->is_app() && browser->is_type_popup() && |
| !browser->is_trusted_source()) { |
| return false; |
| } |
| return ShouldRestoreWindowOfType(WindowTypeForBrowserType(browser->type()), |
| browser->is_app() ? TYPE_APP : TYPE_NORMAL); |
| } |
| |
| void SessionService::RecordSessionUpdateHistogramData(int type, |
| base::TimeTicks* last_updated_time) { |
| if (!last_updated_time->is_null()) { |
| base::TimeDelta delta = base::TimeTicks::Now() - *last_updated_time; |
| // We're interested in frequent updates periods longer than |
| // 10 minutes. |
| bool use_long_period = false; |
| if (delta >= save_delay_in_mins_) { |
| use_long_period = true; |
| } |
| switch (type) { |
| case chrome::NOTIFICATION_SESSION_SERVICE_SAVED : |
| RecordUpdatedSaveTime(delta, use_long_period); |
| RecordUpdatedSessionNavigationOrTab(delta, use_long_period); |
| break; |
| case content::NOTIFICATION_WEB_CONTENTS_DESTROYED: |
| RecordUpdatedTabClosed(delta, use_long_period); |
| RecordUpdatedSessionNavigationOrTab(delta, use_long_period); |
| break; |
| case content::NOTIFICATION_NAV_LIST_PRUNED: |
| RecordUpdatedNavListPruned(delta, use_long_period); |
| RecordUpdatedSessionNavigationOrTab(delta, use_long_period); |
| break; |
| case content::NOTIFICATION_NAV_ENTRY_COMMITTED: |
| RecordUpdatedNavEntryCommit(delta, use_long_period); |
| RecordUpdatedSessionNavigationOrTab(delta, use_long_period); |
| break; |
| default: |
| NOTREACHED() << "Bad type sent to RecordSessionUpdateHistogramData"; |
| break; |
| } |
| } |
| (*last_updated_time) = base::TimeTicks::Now(); |
| } |
| |
| void SessionService::RecordUpdatedTabClosed(base::TimeDelta delta, |
| bool use_long_period) { |
| std::string name("SessionRestore.TabClosedPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(name, |
| delta, |
| // 2500ms is the default save delay. |
| save_delay_in_millis_, |
| save_delay_in_mins_, |
| 50); |
| if (use_long_period) { |
| std::string long_name_("SessionRestore.TabClosedLongPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(long_name_, |
| delta, |
| save_delay_in_mins_, |
| save_delay_in_hrs_, |
| 50); |
| } |
| } |
| |
| void SessionService::RecordUpdatedNavListPruned(base::TimeDelta delta, |
| bool use_long_period) { |
| std::string name("SessionRestore.NavigationListPrunedPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(name, |
| delta, |
| // 2500ms is the default save delay. |
| save_delay_in_millis_, |
| save_delay_in_mins_, |
| 50); |
| if (use_long_period) { |
| std::string long_name_("SessionRestore.NavigationListPrunedLongPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(long_name_, |
| delta, |
| save_delay_in_mins_, |
| save_delay_in_hrs_, |
| 50); |
| } |
| } |
| |
| void SessionService::RecordUpdatedNavEntryCommit(base::TimeDelta delta, |
| bool use_long_period) { |
| std::string name("SessionRestore.NavEntryCommittedPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(name, |
| delta, |
| // 2500ms is the default save delay. |
| save_delay_in_millis_, |
| save_delay_in_mins_, |
| 50); |
| if (use_long_period) { |
| std::string long_name_("SessionRestore.NavEntryCommittedLongPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(long_name_, |
| delta, |
| save_delay_in_mins_, |
| save_delay_in_hrs_, |
| 50); |
| } |
| } |
| |
| void SessionService::RecordUpdatedSaveTime(base::TimeDelta delta, |
| bool use_long_period) { |
| std::string name("SessionRestore.SavePeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(name, |
| delta, |
| // 2500ms is the default save delay. |
| save_delay_in_millis_, |
| save_delay_in_mins_, |
| 50); |
| if (use_long_period) { |
| std::string long_name_("SessionRestore.SaveLongPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(long_name_, |
| delta, |
| save_delay_in_mins_, |
| save_delay_in_hrs_, |
| 50); |
| } |
| } |
| |
| void SessionService::RecordUpdatedSessionNavigationOrTab(base::TimeDelta delta, |
| bool use_long_period) { |
| std::string name("SessionRestore.NavOrTabUpdatePeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(name, |
| delta, |
| // 2500ms is the default save delay. |
| save_delay_in_millis_, |
| save_delay_in_mins_, |
| 50); |
| if (use_long_period) { |
| std::string long_name_("SessionRestore.NavOrTabUpdateLongPeriod"); |
| UMA_HISTOGRAM_CUSTOM_TIMES(long_name_, |
| delta, |
| save_delay_in_mins_, |
| save_delay_in_hrs_, |
| 50); |
| } |
| } |
| |
| void SessionService::MaybeDeleteSessionOnlyData() { |
| // Don't try anything if we're testing. The browser_process is not fully |
| // created and DeleteSession will crash if we actually attempt it. |
| if (!profile() || profile()->AsTestingProfile()) |
| return; |
| |
| // Clear session data if the last window for a profile has been closed and |
| // closing the last window would normally close Chrome, unless background mode |
| // is active. Tests don't have a background_mode_manager. |
| if (has_open_trackable_browsers_ || |
| browser_defaults::kBrowserAliveWithNoWindows || |
| g_browser_process->background_mode_manager()->IsBackgroundModeActive()) { |
| return; |
| } |
| |
| // Check for any open windows for the current profile that we aren't tracking. |
| for (chrome::BrowserIterator it; !it.done(); it.Next()) { |
| if ((*it)->profile() == profile()) |
| return; |
| } |
| DeleteSessionOnlyData(profile()); |
| } |
| |
| BaseSessionService* SessionService::GetBaseSessionServiceForTest() { |
| return base_session_service_.get(); |
| } |
