// Copyright (c) 2011 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/tab_contents/tab_contents.h" #include #include "base/auto_reset.h" #include "base/metrics/histogram.h" #include "base/metrics/stats_counters.h" #include "base/string16.h" #include "base/string_util.h" #include "base/time.h" #include "base/utf_string_conversions.h" #include "chrome/browser/autocomplete_history_manager.h" #include "chrome/browser/autofill/autofill_manager.h" #include "chrome/browser/blocked_content_container.h" #include "chrome/browser/browser_process.h" #include "chrome/browser/browser_shutdown.h" #include "chrome/browser/character_encoding.h" #include "chrome/browser/child_process_security_policy.h" #include "chrome/browser/content_settings/content_settings_details.h" #include "chrome/browser/content_settings/host_content_settings_map.h" #include "chrome/browser/debugger/devtools_manager.h" #include "chrome/browser/defaults.h" #include "chrome/browser/desktop_notification_handler.h" #include "chrome/browser/dom_operation_notification_details.h" #include "chrome/browser/download/download_item_model.h" #include "chrome/browser/download/download_manager.h" #include "chrome/browser/download/download_request_limiter.h" #include "chrome/browser/extensions/extension_service.h" #include "chrome/browser/external_protocol_handler.h" #include "chrome/browser/favicon_service.h" #include "chrome/browser/file_select_helper.h" #include "chrome/browser/google/google_util.h" #include "chrome/browser/history/history.h" #include "chrome/browser/history/history_types.h" #include "chrome/browser/history/top_sites.h" #include "chrome/browser/host_zoom_map.h" #include "chrome/browser/hung_renderer_dialog.h" #include "chrome/browser/in_process_webkit/session_storage_namespace.h" #include "chrome/browser/load_from_memory_cache_details.h" #include "chrome/browser/load_notification_details.h" #include "chrome/browser/metrics/metric_event_duration_details.h" #include "chrome/browser/metrics/user_metrics.h" #include "chrome/browser/modal_html_dialog_delegate.h" #include "chrome/browser/omnibox_search_hint.h" #include "chrome/browser/pdf_unsupported_feature.h" #include "chrome/browser/platform_util.h" #include "chrome/browser/plugin_observer.h" #include "chrome/browser/prefs/pref_service.h" #include "chrome/browser/prerender/prerender_manager.h" #include "chrome/browser/prerender/prerender_plt_recorder.h" #include "chrome/browser/printing/print_preview_message_handler.h" #include "chrome/browser/printing/print_preview_tab_controller.h" #include "chrome/browser/printing/print_view_manager.h" #include "chrome/browser/profiles/profile.h" #include "chrome/browser/renderer_host/render_process_host.h" #include "chrome/browser/renderer_host/render_view_host.h" #include "chrome/browser/renderer_host/render_widget_host_view.h" #include "chrome/browser/renderer_host/resource_request_details.h" #include "chrome/browser/renderer_host/site_instance.h" #include "chrome/browser/renderer_host/web_cache_manager.h" #include "chrome/browser/renderer_preferences_util.h" #include "chrome/browser/safe_browsing/client_side_detection_host.h" #include "chrome/browser/sessions/session_types.h" #include "chrome/browser/tab_contents/infobar_delegate.h" #include "chrome/browser/tab_contents/interstitial_page.h" #include "chrome/browser/tab_contents/navigation_entry.h" #include "chrome/browser/tab_contents/provisional_load_details.h" #include "chrome/browser/tab_contents/tab_contents_delegate.h" #include "chrome/browser/tab_contents/tab_contents_observer.h" #include "chrome/browser/tab_contents/tab_contents_ssl_helper.h" #include "chrome/browser/tab_contents/tab_contents_view.h" #include "chrome/browser/tab_contents/thumbnail_generator.h" #include "chrome/browser/translate/page_translated_details.h" #include "chrome/browser/ui/app_modal_dialogs/message_box_handler.h" #include "chrome/browser/webui/web_ui.h" #include "chrome/common/bindings_policy.h" #include "chrome/common/chrome_switches.h" #include "chrome/common/content_restriction.h" #include "chrome/common/extensions/extension.h" #include "chrome/common/extensions/extension_action.h" #include "chrome/common/extensions/extension_icon_set.h" #include "chrome/common/extensions/extension_resource.h" #include "chrome/common/extensions/url_pattern.h" #include "chrome/common/navigation_types.h" #include "chrome/common/net/url_request_context_getter.h" #include "chrome/common/notification_service.h" #include "chrome/common/pref_names.h" #include "chrome/common/render_messages.h" #include "chrome/common/render_messages_params.h" #include "chrome/common/url_constants.h" #include "grit/chromium_strings.h" #include "grit/generated_resources.h" #include "grit/locale_settings.h" #include "grit/platform_locale_settings.h" #include "grit/theme_resources.h" #include "net/base/net_util.h" #include "net/base/registry_controlled_domain.h" #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h" #include "ui/base/l10n/l10n_util.h" #include "ui/base/resource/resource_bundle.h" #include "ui/gfx/codec/png_codec.h" #include "webkit/glue/password_form.h" #include "webkit/glue/webpreferences.h" #if defined(OS_MACOSX) #include "app/surface/io_surface_support_mac.h" #endif // defined(OS_MACOSX) #if defined(OS_CHROMEOS) #include "chrome/browser/chromeos/locale_change_guard.h" #endif // defined(OS_CHROMEOS) // Cross-Site Navigations // // If a TabContents is told to navigate to a different web site (as determined // by SiteInstance), it will replace its current RenderViewHost with a new // RenderViewHost dedicated to the new SiteInstance. This works as follows: // // - Navigate determines whether the destination is cross-site, and if so, // it creates a pending_render_view_host_ and moves into the PENDING // RendererState. // - The pending RVH is "suspended," so that no navigation messages are sent to // its renderer until the onbeforeunload JavaScript handler has a chance to // run in the current RVH. // - The pending RVH tells CrossSiteRequestManager (a thread-safe singleton) // that it has a pending cross-site request. ResourceDispatcherHost will // check for this when the response arrives. // - The current RVH runs its onbeforeunload handler. If it returns false, we // cancel all the pending logic and go back to NORMAL. Otherwise we allow // the pending RVH to send the navigation request to its renderer. // - ResourceDispatcherHost receives a ResourceRequest on the IO thread. It // checks CrossSiteRequestManager to see that the RVH responsible has a // pending cross-site request, and then installs a CrossSiteEventHandler. // - When RDH receives a response, the BufferedEventHandler determines whether // it is a download. If so, it sends a message to the new renderer causing // it to cancel the request, and the download proceeds in the download // thread. For now, we stay in a PENDING state (with a pending RVH) until // the next DidNavigate event for this TabContents. This isn't ideal, but it // doesn't affect any functionality. // - After RDH receives a response and determines that it is safe and not a // download, it pauses the response to first run the old page's onunload // handler. It does this by asynchronously calling the OnCrossSiteResponse // method of TabContents on the UI thread, which sends a ClosePage message // to the current RVH. // - Once the onunload handler is finished, a ClosePage_ACK message is sent to // the ResourceDispatcherHost, who unpauses the response. Data is then sent // to the pending RVH. // - The pending renderer sends a FrameNavigate message that invokes the // DidNavigate method. This replaces the current RVH with the // pending RVH and goes back to the NORMAL RendererState. namespace { // Amount of time we wait between when a key event is received and the renderer // is queried for its state and pushed to the NavigationEntry. const int kQueryStateDelay = 5000; const int kSyncWaitDelay = 40; // If another javascript message box is displayed within // kJavascriptMessageExpectedDelay of a previous javascript message box being // dismissed, display an option to suppress future message boxes from this // contents. const int kJavascriptMessageExpectedDelay = 1000; // The list of prefs we want to observe. const char* kPrefsToObserve[] = { prefs::kAlternateErrorPagesEnabled, prefs::kDefaultZoomLevel, prefs::kWebKitJavaEnabled, prefs::kWebKitJavascriptEnabled, prefs::kWebKitLoadsImagesAutomatically, prefs::kWebKitPluginsEnabled, prefs::kWebKitUsesUniversalDetector, prefs::kWebKitSerifFontFamily, prefs::kWebKitSansSerifFontFamily, prefs::kWebKitFixedFontFamily, prefs::kWebKitDefaultFontSize, prefs::kWebKitDefaultFixedFontSize, prefs::kWebKitMinimumFontSize, prefs::kWebKitMinimumLogicalFontSize, prefs::kWebkitTabsToLinks, prefs::kDefaultCharset // kWebKitStandardFontIsSerif needs to be added // if we let users pick which font to use, serif or sans-serif when // no font is specified or a CSS generic family (serif or sans-serif) // is not specified. }; const int kPrefsToObserveLength = arraysize(kPrefsToObserve); #if defined(OS_WIN) BOOL CALLBACK InvalidateWindow(HWND hwnd, LPARAM lparam) { // Note: erase is required to properly paint some widgets borders. This can // be seen with textfields. InvalidateRect(hwnd, NULL, TRUE); return TRUE; } #endif ViewMsg_Navigate_Params::NavigationType GetNavigationType( Profile* profile, const NavigationEntry& entry, NavigationController::ReloadType reload_type) { switch (reload_type) { case NavigationController::RELOAD: return ViewMsg_Navigate_Params::RELOAD; case NavigationController::RELOAD_IGNORING_CACHE: return ViewMsg_Navigate_Params::RELOAD_IGNORING_CACHE; case NavigationController::NO_RELOAD: break; // Fall through to rest of function. } if (entry.restore_type() == NavigationEntry::RESTORE_LAST_SESSION && profile->DidLastSessionExitCleanly()) return ViewMsg_Navigate_Params::RESTORE; return ViewMsg_Navigate_Params::NORMAL; } void MakeNavigateParams(const NavigationEntry& entry, const NavigationController& controller, NavigationController::ReloadType reload_type, ViewMsg_Navigate_Params* params) { params->page_id = entry.page_id(); params->pending_history_list_offset = controller.GetIndexOfEntry(&entry); params->current_history_list_offset = controller.last_committed_entry_index(); params->current_history_list_length = controller.entry_count(); params->url = entry.url(); params->referrer = entry.referrer(); params->transition = entry.transition_type(); params->state = entry.content_state(); params->navigation_type = GetNavigationType(controller.profile(), entry, reload_type); params->request_time = base::Time::Now(); } } // namespace // TabContents ---------------------------------------------------------------- TabContents::TabContents(Profile* profile, SiteInstance* site_instance, int routing_id, const TabContents* base_tab_contents, SessionStorageNamespace* session_storage_namespace) : delegate_(NULL), ALLOW_THIS_IN_INITIALIZER_LIST(controller_( this, profile, session_storage_namespace)), ALLOW_THIS_IN_INITIALIZER_LIST(view_( TabContentsView::Create(this))), ALLOW_THIS_IN_INITIALIZER_LIST(render_manager_(this, this)), bookmark_drag_(NULL), is_loading_(false), crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING), crashed_error_code_(0), waiting_for_response_(false), max_page_id_(-1), load_state_(net::LOAD_STATE_IDLE), upload_size_(0), upload_position_(0), received_page_title_(false), blocked_contents_(NULL), all_contents_blocked_(false), dont_notify_render_view_(false), displayed_insecure_content_(false), extension_app_(NULL), capturing_contents_(false), is_being_destroyed_(false), notify_disconnection_(false), #if defined(OS_WIN) message_box_active_(CreateEvent(NULL, TRUE, FALSE, NULL)), #endif suppress_javascript_messages_(false), is_showing_before_unload_dialog_(false), opener_web_ui_type_(WebUIFactory::kNoWebUI), language_state_(&controller_), closed_by_user_gesture_(false), minimum_zoom_percent_( static_cast(WebKit::WebView::minTextSizeMultiplier * 100)), maximum_zoom_percent_( static_cast(WebKit::WebView::maxTextSizeMultiplier * 100)), temporary_zoom_settings_(false), content_restrictions_(0) { renderer_preferences_util::UpdateFromSystemSettings( &renderer_preferences_, profile); content_settings_delegate_.reset( new TabSpecificContentSettings(this, profile)); render_manager_.Init(profile, site_instance, routing_id); // We have the initial size of the view be based on the size of the passed in // tab contents (normally a tab from the same window). view_->CreateView(base_tab_contents ? base_tab_contents->view()->GetContainerSize() : gfx::Size()); // Register for notifications about all interested prefs change. PrefService* prefs = profile->GetPrefs(); pref_change_registrar_.Init(prefs); if (prefs) { for (int i = 0; i < kPrefsToObserveLength; ++i) pref_change_registrar_.Add(kPrefsToObserve[i], this); } registrar_.Add(this, NotificationType::RENDER_WIDGET_HOST_DESTROYED, NotificationService::AllSources()); #if defined(OS_LINUX) registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED, NotificationService::AllSources()); #endif registrar_.Add(this, NotificationType::USER_STYLE_SHEET_UPDATED, NotificationService::AllSources()); // Register for notifications about content setting changes. registrar_.Add(this, NotificationType::CONTENT_SETTINGS_CHANGED, NotificationService::AllSources()); // Listen for extension changes so we can update extension_for_current_page_. registrar_.Add(this, NotificationType::EXTENSION_LOADED, NotificationService::AllSources()); registrar_.Add(this, NotificationType::EXTENSION_UNLOADED, NotificationService::AllSources()); // Listen for Google URL changes registrar_.Add(this, NotificationType::GOOGLE_URL_UPDATED, NotificationService::AllSources()); // Set-up the showing of the omnibox search infobar if applicable. if (OmniboxSearchHint::IsEnabled(profile)) omnibox_search_hint_.reset(new OmniboxSearchHint(this)); // Can only add observers after render_manager_.Init() is called, since that's // what sets up the render_view_host which TabContentObserver's constructor // uses to get the routing_id. AddObservers(); } TabContents::~TabContents() { is_being_destroyed_ = true; // We don't want any notifications while we're running our destructor. registrar_.RemoveAll(); pref_change_registrar_.RemoveAll(); NotifyDisconnected(); hung_renderer_dialog::HideForTabContents(this); // First cleanly close all child windows. // TODO(mpcomplete): handle case if MaybeCloseChildWindows() already asked // some of these to close. CloseWindows is async, so it might get called // twice before it runs. CloseConstrainedWindows(); // Close all blocked contents. if (blocked_contents_) blocked_contents_->Destroy(); // Notify any observer that have a reference on this tab contents. NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_DESTROYED, Source(this), NotificationService::NoDetails()); // Notify any lasting InfobarDelegates that have not yet been removed that // whatever infobar they were handling in this TabContents has closed, // because the TabContents is going away entirely. // This must happen after the TAB_CONTENTS_DESTROYED notification as the // notification may trigger infobars calls that access their delegate. (and // some implementations of InfoBarDelegate do delete themselves on // InfoBarClosed()). for (size_t i = 0; i < infobar_count(); ++i) { InfoBarDelegate* delegate = GetInfoBarDelegateAt(i); delegate->InfoBarClosed(); } infobar_delegates_.clear(); // TODO(brettw) this should be moved to the view. #if defined(OS_WIN) // If we still have a window handle, destroy it. GetNativeView can return // NULL if this contents was part of a window that closed. if (GetNativeView()) { RenderViewHost* host = render_view_host(); if (host && host->view()) { host->view()->WillWmDestroy(); } ::DestroyWindow(GetNativeView()); } #endif // OnCloseStarted isn't called in unit tests. if (!tab_close_start_time_.is_null()) { UMA_HISTOGRAM_TIMES("Tab.Close", base::TimeTicks::Now() - tab_close_start_time_); } FOR_EACH_OBSERVER(TabContentsObserver, observers_, set_tab_contents(NULL)); } void TabContents::AddObservers() { printing_.reset(new printing::PrintViewManager(this)); print_preview_.reset(new printing::PrintPreviewMessageHandler(this)); fav_icon_helper_.reset(new FavIconHelper(this)); autofill_manager_.reset(new AutoFillManager(this)); autocomplete_history_manager_.reset(new AutocompleteHistoryManager(this)); prerender_plt_recorder_.reset(new prerender::PrerenderPLTRecorder(this)); desktop_notification_handler_.reset( new DesktopNotificationHandlerForTC(this, GetRenderProcessHost())); plugin_observer_.reset(new PluginObserver(this)); safebrowsing_detection_host_.reset(new safe_browsing::ClientSideDetectionHost( this)); } // static void TabContents::RegisterUserPrefs(PrefService* prefs) { prefs->RegisterBooleanPref(prefs::kAlternateErrorPagesEnabled, true); WebPreferences pref_defaults; prefs->RegisterBooleanPref(prefs::kWebKitJavascriptEnabled, pref_defaults.javascript_enabled); prefs->RegisterBooleanPref(prefs::kWebKitWebSecurityEnabled, pref_defaults.web_security_enabled); prefs->RegisterBooleanPref( prefs::kWebKitJavascriptCanOpenWindowsAutomatically, true); prefs->RegisterBooleanPref(prefs::kWebKitLoadsImagesAutomatically, pref_defaults.loads_images_automatically); prefs->RegisterBooleanPref(prefs::kWebKitPluginsEnabled, pref_defaults.plugins_enabled); prefs->RegisterBooleanPref(prefs::kWebKitDomPasteEnabled, pref_defaults.dom_paste_enabled); prefs->RegisterBooleanPref(prefs::kWebKitShrinksStandaloneImagesToFit, pref_defaults.shrinks_standalone_images_to_fit); prefs->RegisterDictionaryPref(prefs::kWebKitInspectorSettings); prefs->RegisterBooleanPref(prefs::kWebKitTextAreasAreResizable, pref_defaults.text_areas_are_resizable); prefs->RegisterBooleanPref(prefs::kWebKitJavaEnabled, pref_defaults.java_enabled); prefs->RegisterBooleanPref(prefs::kWebkitTabsToLinks, pref_defaults.tabs_to_links); prefs->RegisterLocalizedStringPref(prefs::kAcceptLanguages, IDS_ACCEPT_LANGUAGES); prefs->RegisterLocalizedStringPref(prefs::kDefaultCharset, IDS_DEFAULT_ENCODING); prefs->RegisterLocalizedBooleanPref(prefs::kWebKitStandardFontIsSerif, IDS_STANDARD_FONT_IS_SERIF); prefs->RegisterLocalizedStringPref(prefs::kWebKitFixedFontFamily, IDS_FIXED_FONT_FAMILY); prefs->RegisterLocalizedStringPref(prefs::kWebKitSerifFontFamily, IDS_SERIF_FONT_FAMILY); prefs->RegisterLocalizedStringPref(prefs::kWebKitSansSerifFontFamily, IDS_SANS_SERIF_FONT_FAMILY); prefs->RegisterLocalizedStringPref(prefs::kWebKitCursiveFontFamily, IDS_CURSIVE_FONT_FAMILY); prefs->RegisterLocalizedStringPref(prefs::kWebKitFantasyFontFamily, IDS_FANTASY_FONT_FAMILY); prefs->RegisterLocalizedIntegerPref(prefs::kWebKitDefaultFontSize, IDS_DEFAULT_FONT_SIZE); prefs->RegisterLocalizedIntegerPref(prefs::kWebKitDefaultFixedFontSize, IDS_DEFAULT_FIXED_FONT_SIZE); prefs->RegisterLocalizedIntegerPref(prefs::kWebKitMinimumFontSize, IDS_MINIMUM_FONT_SIZE); prefs->RegisterLocalizedIntegerPref(prefs::kWebKitMinimumLogicalFontSize, IDS_MINIMUM_LOGICAL_FONT_SIZE); prefs->RegisterLocalizedBooleanPref(prefs::kWebKitUsesUniversalDetector, IDS_USES_UNIVERSAL_DETECTOR); prefs->RegisterLocalizedStringPref(prefs::kStaticEncodings, IDS_STATIC_ENCODING_LIST); } bool TabContents::OnMessageReceived(const IPC::Message& message) { ObserverListBase::Iterator it(observers_); TabContentsObserver* observer; while ((observer = it.GetNext()) != NULL) if (observer->OnMessageReceived(message)) return true; bool handled = true; bool message_is_ok = true; IPC_BEGIN_MESSAGE_MAP_EX(TabContents, message, message_is_ok) IPC_MESSAGE_HANDLER(ViewHostMsg_DidStartProvisionalLoadForFrame, OnDidStartProvisionalLoadForFrame) IPC_MESSAGE_HANDLER(ViewHostMsg_DidRedirectProvisionalLoad, OnDidRedirectProvisionalLoad) IPC_MESSAGE_HANDLER(ViewHostMsg_DidFailProvisionalLoadWithError, OnDidFailProvisionalLoadWithError) IPC_MESSAGE_HANDLER(ViewHostMsg_DidLoadResourceFromMemoryCache, OnDidLoadResourceFromMemoryCache) IPC_MESSAGE_HANDLER(ViewHostMsg_DidDisplayInsecureContent, OnDidDisplayInsecureContent) IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent, OnDidRunInsecureContent) IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentLoadedInFrame, OnDocumentLoadedInFrame) IPC_MESSAGE_HANDLER(ViewHostMsg_DidFinishLoad, OnDidFinishLoad) IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateContentRestrictions, OnUpdateContentRestrictions) IPC_MESSAGE_HANDLER(ViewHostMsg_PDFHasUnsupportedFeature, OnPDFHasUnsupportedFeature) IPC_MESSAGE_HANDLER(ViewHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset) IPC_MESSAGE_HANDLER(ViewHostMsg_DidGetApplicationInfo, OnDidGetApplicationInfo) IPC_MESSAGE_HANDLER(ViewHostMsg_InstallApplication, OnInstallApplication) IPC_MESSAGE_HANDLER(ViewHostMsg_PageContents, OnPageContents) IPC_MESSAGE_HANDLER(ViewHostMsg_PageTranslated, OnPageTranslated) IPC_MESSAGE_HANDLER(ViewHostMsg_SetSuggestions, OnSetSuggestions) IPC_MESSAGE_HANDLER(ViewHostMsg_InstantSupportDetermined, OnInstantSupportDetermined) IPC_MESSAGE_HANDLER(ViewHostMsg_RunFileChooser, OnRunFileChooser) IPC_MESSAGE_UNHANDLED(handled = false) IPC_END_MESSAGE_MAP_EX() if (!message_is_ok) { UserMetrics::RecordAction(UserMetricsAction("BadMessageTerminate_RVD")); GetRenderProcessHost()->ReceivedBadMessage(); } return handled; } // Returns true if contains content rendered by an extension. bool TabContents::HostsExtension() const { return GetURL().SchemeIs(chrome::kExtensionScheme); } TabContentsSSLHelper* TabContents::GetSSLHelper() { if (ssl_helper_.get() == NULL) ssl_helper_.reset(new TabContentsSSLHelper(this)); return ssl_helper_.get(); } RenderProcessHost* TabContents::GetRenderProcessHost() const { return render_manager_.current_host()->process(); } void TabContents::SetExtensionApp(const Extension* extension) { DCHECK(!extension || extension->GetFullLaunchURL().is_valid()); extension_app_ = extension; UpdateExtensionAppIcon(extension_app_); NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_APPLICATION_EXTENSION_CHANGED, Source(this), NotificationService::NoDetails()); } void TabContents::SetExtensionAppById(const std::string& extension_app_id) { if (extension_app_id.empty()) return; ExtensionService* extension_service = profile()->GetExtensionService(); if (!extension_service || !extension_service->is_ready()) return; const Extension* extension = extension_service->GetExtensionById(extension_app_id, false); if (extension) SetExtensionApp(extension); } SkBitmap* TabContents::GetExtensionAppIcon() { if (extension_app_icon_.empty()) return NULL; return &extension_app_icon_; } const GURL& TabContents::GetURL() const { // We may not have a navigation entry yet NavigationEntry* entry = controller_.GetActiveEntry(); return entry ? entry->virtual_url() : GURL::EmptyGURL(); } const string16& TabContents::GetTitle() const { // Transient entries take precedence. They are used for interstitial pages // that are shown on top of existing pages. NavigationEntry* entry = controller_.GetTransientEntry(); if (entry) { return entry->GetTitleForDisplay(profile()->GetPrefs()-> GetString(prefs::kAcceptLanguages)); } WebUI* our_web_ui = render_manager_.pending_web_ui() ? render_manager_.pending_web_ui() : render_manager_.web_ui(); if (our_web_ui) { // Don't override the title in view source mode. entry = controller_.GetActiveEntry(); if (!(entry && entry->IsViewSourceMode())) { // Give the Web UI the chance to override our title. const string16& title = our_web_ui->overridden_title(); if (!title.empty()) return title; } } // We use the title for the last committed entry rather than a pending // navigation entry. For example, when the user types in a URL, we want to // keep the old page's title until the new load has committed and we get a new // title. entry = controller_.GetLastCommittedEntry(); if (entry) { return entry->GetTitleForDisplay(profile()->GetPrefs()-> GetString(prefs::kAcceptLanguages)); } return EmptyString16(); } // static string16 TabContents::GetDefaultTitle() { return l10n_util::GetStringUTF16(IDS_DEFAULT_TAB_TITLE); } int32 TabContents::GetMaxPageID() { if (GetSiteInstance()) return GetSiteInstance()->max_page_id(); else return max_page_id_; } void TabContents::UpdateMaxPageID(int32 page_id) { // Ensure both the SiteInstance and RenderProcessHost update their max page // IDs in sync. Only TabContents will also have site instances, except during // testing. if (GetSiteInstance()) GetSiteInstance()->UpdateMaxPageID(page_id); GetRenderProcessHost()->UpdateMaxPageID(page_id); } SiteInstance* TabContents::GetSiteInstance() const { return render_manager_.current_host()->site_instance(); } bool TabContents::ShouldDisplayURL() { // Don't hide the url in view source mode and with interstitials. NavigationEntry* entry = controller_.GetActiveEntry(); if (entry && (entry->IsViewSourceMode() || entry->page_type() == INTERSTITIAL_PAGE)) { return true; } // We always display the URL for non-WebUI URLs to prevent spoofing. if (entry && !WebUIFactory::HasWebUIScheme(entry->url())) return true; WebUI* web_ui = GetWebUIForCurrentState(); if (web_ui) return !web_ui->should_hide_url(); return true; } SkBitmap TabContents::GetFavIcon() const { // Like GetTitle(), we also want to use the favicon for the last committed // entry rather than a pending navigation entry. NavigationEntry* entry = controller_.GetTransientEntry(); if (entry) return entry->favicon().bitmap(); entry = controller_.GetLastCommittedEntry(); if (entry) return entry->favicon().bitmap(); return SkBitmap(); } bool TabContents::FavIconIsValid() const { NavigationEntry* entry = controller_.GetTransientEntry(); if (entry) return entry->favicon().is_valid(); entry = controller_.GetLastCommittedEntry(); if (entry) return entry->favicon().is_valid(); return false; } bool TabContents::ShouldDisplayFavIcon() { // Always display a throbber during pending loads. if (controller_.GetLastCommittedEntry() && controller_.pending_entry()) return true; WebUI* web_ui = GetWebUIForCurrentState(); if (web_ui) return !web_ui->hide_favicon(); return true; } string16 TabContents::GetStatusText() const { if (!is_loading() || load_state_ == net::LOAD_STATE_IDLE) return string16(); switch (load_state_) { case net::LOAD_STATE_WAITING_FOR_CACHE: return l10n_util::GetStringUTF16(IDS_LOAD_STATE_WAITING_FOR_CACHE); case net::LOAD_STATE_ESTABLISHING_PROXY_TUNNEL: return l10n_util::GetStringUTF16(IDS_LOAD_STATE_ESTABLISHING_PROXY_TUNNEL); case net::LOAD_STATE_RESOLVING_PROXY_FOR_URL: return l10n_util::GetStringUTF16(IDS_LOAD_STATE_RESOLVING_PROXY_FOR_URL); case net::LOAD_STATE_RESOLVING_HOST: return l10n_util::GetStringUTF16(IDS_LOAD_STATE_RESOLVING_HOST); case net::LOAD_STATE_CONNECTING: return l10n_util::GetStringUTF16(IDS_LOAD_STATE_CONNECTING); case net::LOAD_STATE_SSL_HANDSHAKE: return l10n_util::GetStringUTF16(IDS_LOAD_STATE_SSL_HANDSHAKE); case net::LOAD_STATE_SENDING_REQUEST: if (upload_size_) return l10n_util::GetStringFUTF16Int( IDS_LOAD_STATE_SENDING_REQUEST_WITH_PROGRESS, static_cast((100 * upload_position_) / upload_size_)); else return l10n_util::GetStringUTF16(IDS_LOAD_STATE_SENDING_REQUEST); case net::LOAD_STATE_WAITING_FOR_RESPONSE: return l10n_util::GetStringFUTF16(IDS_LOAD_STATE_WAITING_FOR_RESPONSE, load_state_host_); // Ignore net::LOAD_STATE_READING_RESPONSE and net::LOAD_STATE_IDLE case net::LOAD_STATE_IDLE: case net::LOAD_STATE_READING_RESPONSE: break; } return string16(); } void TabContents::AddObserver(TabContentsObserver* observer) { observers_.AddObserver(observer); } void TabContents::RemoveObserver(TabContentsObserver* observer) { observers_.RemoveObserver(observer); } void TabContents::SetIsCrashed(base::TerminationStatus status, int error_code) { if (status == crashed_status_) return; crashed_status_ = status; crashed_error_code_ = error_code; NotifyNavigationStateChanged(INVALIDATE_TAB); } void TabContents::PageActionStateChanged() { NotifyNavigationStateChanged(TabContents::INVALIDATE_PAGE_ACTIONS); } void TabContents::NotifyNavigationStateChanged(unsigned changed_flags) { if (delegate_) delegate_->NavigationStateChanged(this, changed_flags); } void TabContents::DidBecomeSelected() { controller_.SetActive(true); RenderWidgetHostView* rwhv = GetRenderWidgetHostView(); if (rwhv) { rwhv->DidBecomeSelected(); #if defined(OS_MACOSX) rwhv->SetActive(true); #endif } WebCacheManager::GetInstance()->ObserveActivity(GetRenderProcessHost()->id()); last_selected_time_ = base::TimeTicks::Now(); #if defined(OS_CHROMEOS) chromeos::LocaleChangeGuard::Check(this); #endif } void TabContents::FadeForInstant(bool animate) { RenderWidgetHostView* rwhv = GetRenderWidgetHostView(); SkColor whitish = SkColorSetARGB(192, 255, 255, 255); if (rwhv) rwhv->SetVisuallyDeemphasized(&whitish, animate); } void TabContents::CancelInstantFade() { RenderWidgetHostView* rwhv = GetRenderWidgetHostView(); if (rwhv) rwhv->SetVisuallyDeemphasized(NULL, false); } void TabContents::WasHidden() { if (!capturing_contents()) { // |render_view_host()| can be NULL if the user middle clicks a link to open // a tab in then background, then closes the tab before selecting it. This // is because closing the tab calls TabContents::Destroy(), which removes // the |render_view_host()|; then when we actually destroy the window, // OnWindowPosChanged() notices and calls HideContents() (which calls us). RenderWidgetHostView* rwhv = GetRenderWidgetHostView(); if (rwhv) rwhv->WasHidden(); } NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_HIDDEN, Source(this), NotificationService::NoDetails()); } void TabContents::Activate() { if (delegate_) delegate_->ActivateContents(this); } void TabContents::Deactivate() { if (delegate_) delegate_->DeactivateContents(this); } void TabContents::ShowContents() { RenderWidgetHostView* rwhv = GetRenderWidgetHostView(); if (rwhv) rwhv->DidBecomeSelected(); } void TabContents::HideContents() { // TODO(pkasting): http://b/1239839 Right now we purposefully don't call // our superclass HideContents(), because some callers want to be very picky // about the order in which these get called. In addition to making the code // here practically impossible to understand, this also means we end up // calling TabContents::WasHidden() twice if callers call both versions of // HideContents() on a TabContents. WasHidden(); } bool TabContents::NeedToFireBeforeUnload() { // TODO(creis): Should we fire even for interstitial pages? return notify_disconnection() && !showing_interstitial_page() && !render_view_host()->SuddenTerminationAllowed(); } void TabContents::OpenURL(const GURL& url, const GURL& referrer, WindowOpenDisposition disposition, PageTransition::Type transition) { if (delegate_) delegate_->OpenURLFromTab(this, url, referrer, disposition, transition); } bool TabContents::NavigateToPendingEntry( NavigationController::ReloadType reload_type) { return NavigateToEntry(*controller_.pending_entry(), reload_type); } bool TabContents::NavigateToEntry( const NavigationEntry& entry, NavigationController::ReloadType reload_type) { RenderViewHost* dest_render_view_host = render_manager_.Navigate(entry); if (!dest_render_view_host) return false; // Unable to create the desired render view host. if (delegate_ && delegate_->ShouldEnablePreferredSizeNotifications()) { dest_render_view_host->EnablePreferredSizeChangedMode( kPreferredSizeWidth | kPreferredSizeHeightThisIsSlow); } // For security, we should never send non-Web-UI URLs to a Web UI renderer. // Double check that here. int enabled_bindings = dest_render_view_host->enabled_bindings(); bool is_allowed_in_web_ui_renderer = WebUIFactory::IsURLAcceptableForWebUI(profile(), entry.url()); CHECK(!BindingsPolicy::is_web_ui_enabled(enabled_bindings) || is_allowed_in_web_ui_renderer); // Tell DevTools agent that it is attached prior to the navigation. DevToolsManager* devtools_manager = DevToolsManager::GetInstance(); if (devtools_manager) { // NULL in unit tests. devtools_manager->OnNavigatingToPendingEntry(render_view_host(), dest_render_view_host, entry.url()); } // Used for page load time metrics. current_load_start_ = base::TimeTicks::Now(); // Navigate in the desired RenderViewHost. ViewMsg_Navigate_Params navigate_params; MakeNavigateParams(entry, controller_, reload_type, &navigate_params); if (delegate_) { navigate_params.extra_headers = delegate_->GetNavigationHeaders(navigate_params.url); } dest_render_view_host->Navigate(navigate_params); if (entry.page_id() == -1) { // HACK!! This code suppresses javascript: URLs from being added to // session history, which is what we want to do for javascript: URLs that // do not generate content. What we really need is a message from the // renderer telling us that a new page was not created. The same message // could be used for mailto: URLs and the like. if (entry.url().SchemeIs(chrome::kJavaScriptScheme)) return false; } // Notify observers about navigation. FOR_EACH_OBSERVER(TabContentsObserver, observers_, NavigateToPendingEntry()); if (reload_type != NavigationController::NO_RELOAD && !profile()->IsOffTheRecord()) { FaviconService* favicon_service = profile()->GetFaviconService(Profile::IMPLICIT_ACCESS); if (favicon_service) favicon_service->SetFaviconOutOfDateForPage(entry.url()); } return true; } void TabContents::Stop() { render_manager_.Stop(); printing_->Stop(); } void TabContents::DisassociateFromPopupCount() { render_view_host()->DisassociateFromPopupCount(); } TabContents* TabContents::Clone() { // We create a new SiteInstance so that the new tab won't share processes // with the old one. This can be changed in the future if we need it to share // processes for some reason. TabContents* tc = new TabContents(profile(), SiteInstance::CreateSiteInstance(profile()), MSG_ROUTING_NONE, this, NULL); tc->controller().CopyStateFrom(controller_); tc->extension_app_ = extension_app_; tc->extension_app_icon_ = extension_app_icon_; return tc; } void TabContents::ShowPageInfo(const GURL& url, const NavigationEntry::SSLStatus& ssl, bool show_history) { if (!delegate_) return; delegate_->ShowPageInfo(profile(), url, ssl, show_history); } void TabContents::SaveFavicon() { NavigationEntry* entry = controller_.GetActiveEntry(); if (!entry || entry->url().is_empty()) return; // Make sure the page is in history, otherwise adding the favicon does // nothing. HistoryService* history = profile()->GetOriginalProfile()->GetHistoryService( Profile::IMPLICIT_ACCESS); if (!history) return; history->AddPageNoVisitForBookmark(entry->url()); FaviconService* service = profile()->GetOriginalProfile()->GetFaviconService( Profile::IMPLICIT_ACCESS); if (!service) return; const NavigationEntry::FaviconStatus& favicon(entry->favicon()); if (!favicon.is_valid() || favicon.url().is_empty() || favicon.bitmap().empty()) { return; } std::vector image_data; gfx::PNGCodec::EncodeBGRASkBitmap(favicon.bitmap(), false, &image_data); service->SetFavicon(entry->url(), favicon.url(), image_data); } ConstrainedWindow* TabContents::CreateConstrainedDialog( ConstrainedWindowDelegate* delegate) { ConstrainedWindow* window = ConstrainedWindow::CreateConstrainedDialog(this, delegate); child_windows_.push_back(window); if (child_windows_.size() == 1) { window->ShowConstrainedWindow(); BlockTabContent(true); } return window; } void TabContents::BlockTabContent(bool blocked) { RenderWidgetHostView* rwhv = GetRenderWidgetHostView(); // 70% opaque grey. SkColor greyish = SkColorSetARGB(178, 0, 0, 0); if (rwhv) rwhv->SetVisuallyDeemphasized(blocked ? &greyish : NULL, false); render_view_host()->set_ignore_input_events(blocked); if (delegate_) delegate_->SetTabContentBlocked(this, blocked); } void TabContents::AddNewContents(TabContents* new_contents, WindowOpenDisposition disposition, const gfx::Rect& initial_pos, bool user_gesture) { if (all_contents_blocked_) { if (!blocked_contents_) blocked_contents_ = new BlockedContentContainer(this); blocked_contents_->AddTabContents( new_contents, disposition, initial_pos, user_gesture); return; } if (!delegate_) return; if ((disposition == NEW_POPUP) && !user_gesture && !CommandLine::ForCurrentProcess()->HasSwitch( switches::kDisablePopupBlocking)) { // Unrequested popups from normal pages are constrained unless they're in // the whitelist. The popup owner will handle checking this. delegate_->GetConstrainingContents(this)->AddPopup( new_contents, initial_pos); } else { new_contents->DisassociateFromPopupCount(); delegate_->AddNewContents(this, new_contents, disposition, initial_pos, user_gesture); NotificationService::current()->Notify( NotificationType::TAB_ADDED, Source(delegate_), Details(this)); } // TODO(pkasting): Why is this necessary? PopupNotificationVisibilityChanged(blocked_contents_ != NULL); } bool TabContents::ExecuteCode(int request_id, const std::string& extension_id, bool is_js_code, const std::string& code_string, bool all_frames) { RenderViewHost* host = render_view_host(); if (!host) return false; return host->Send(new ViewMsg_ExecuteCode(host->routing_id(), ViewMsg_ExecuteCode_Params(request_id, extension_id, is_js_code, code_string, all_frames))); } void TabContents::PopupNotificationVisibilityChanged(bool visible) { if (is_being_destroyed_) return; content_settings_delegate_->SetPopupsBlocked(visible); if (!dont_notify_render_view_) render_view_host()->AllowScriptToClose(!visible); } gfx::NativeView TabContents::GetContentNativeView() const { return view_->GetContentNativeView(); } gfx::NativeView TabContents::GetNativeView() const { return view_->GetNativeView(); } void TabContents::GetContainerBounds(gfx::Rect *out) const { view_->GetContainerBounds(out); } void TabContents::Focus() { view_->Focus(); } void TabContents::FocusThroughTabTraversal(bool reverse) { if (showing_interstitial_page()) { render_manager_.interstitial_page()->FocusThroughTabTraversal(reverse); return; } render_view_host()->SetInitialFocus(reverse); } bool TabContents::FocusLocationBarByDefault() { WebUI* web_ui = GetWebUIForCurrentState(); if (web_ui) return web_ui->focus_location_bar_by_default(); NavigationEntry* entry = controller_.GetActiveEntry(); if (entry && entry->url() == GURL(chrome::kAboutBlankURL)) return true; return false; } void TabContents::SetFocusToLocationBar(bool select_all) { if (delegate()) delegate()->SetFocusToLocationBar(select_all); } void TabContents::AddInfoBar(InfoBarDelegate* delegate) { if (delegate_ && !delegate_->infobars_enabled()) { delegate->InfoBarClosed(); return; } // Look through the existing InfoBarDelegates we have for a match. If we've // already got one that matches, then we don't add the new one. for (size_t i = 0; i < infobar_count(); ++i) { if (GetInfoBarDelegateAt(i)->EqualsDelegate(delegate)) { // Tell the new infobar to close so that it can clean itself up. delegate->InfoBarClosed(); return; } } infobar_delegates_.push_back(delegate); NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_INFOBAR_ADDED, Source(this), Details(delegate)); // Add ourselves as an observer for navigations the first time a delegate is // added. We use this notification to expire InfoBars that need to expire on // page transitions. if (infobar_delegates_.size() == 1) { registrar_.Add(this, NotificationType::NAV_ENTRY_COMMITTED, Source(&controller_)); } } void TabContents::RemoveInfoBar(InfoBarDelegate* delegate) { if (delegate_ && !delegate_->infobars_enabled()) { return; } std::vector::iterator it = find(infobar_delegates_.begin(), infobar_delegates_.end(), delegate); if (it != infobar_delegates_.end()) { InfoBarDelegate* delegate = *it; NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_INFOBAR_REMOVED, Source(this), Details(delegate)); infobar_delegates_.erase(it); // Remove ourselves as an observer if we are tracking no more InfoBars. if (infobar_delegates_.empty()) { registrar_.Remove(this, NotificationType::NAV_ENTRY_COMMITTED, Source(&controller_)); } } } void TabContents::ReplaceInfoBar(InfoBarDelegate* old_delegate, InfoBarDelegate* new_delegate) { if (delegate_ && !delegate_->infobars_enabled()) { new_delegate->InfoBarClosed(); return; } std::vector::iterator it = find(infobar_delegates_.begin(), infobar_delegates_.end(), old_delegate); DCHECK(it != infobar_delegates_.end()); // Notify the container about the change of plans. scoped_ptr > details( new std::pair( old_delegate, new_delegate)); NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_INFOBAR_REPLACED, Source(this), Details >(details.get())); // Remove the old one. infobar_delegates_.erase(it); // Add the new one. DCHECK(find(infobar_delegates_.begin(), infobar_delegates_.end(), new_delegate) == infobar_delegates_.end()); infobar_delegates_.push_back(new_delegate); } bool TabContents::ShouldShowBookmarkBar() { if (showing_interstitial_page()) return false; // Do not show bookmarks bar if bookmarks aren't enabled. if (!browser_defaults::bookmarks_enabled) return false; // See GetWebUIForCurrentState() comment for more info. This case is very // similar, but for non-first loads, we want to use the committed entry. This // is so the bookmarks bar disappears at the same time the page does. if (controller_.GetLastCommittedEntry()) { // Not the first load, always use the committed Web UI. return (render_manager_.web_ui() == NULL) ? false : render_manager_.web_ui()->force_bookmark_bar_visible(); } // When it's the first load, we know either the pending one or the committed // one will have the Web UI in it (see GetWebUIForCurrentState), and only one // of them will be valid, so we can just check both. if (render_manager_.pending_web_ui()) return render_manager_.pending_web_ui()->force_bookmark_bar_visible(); return (render_manager_.web_ui() == NULL) ? false : render_manager_.web_ui()->force_bookmark_bar_visible(); } void TabContents::ToolbarSizeChanged(bool is_animating) { TabContentsDelegate* d = delegate(); if (d) d->ToolbarSizeChanged(this, is_animating); } bool TabContents::CanDownload(int request_id) { TabContentsDelegate* d = delegate(); if (d) return d->CanDownload(request_id); return true; } void TabContents::OnStartDownload(DownloadItem* download) { DCHECK(download); // Download in a constrained popup is shown in the tab that opened it. TabContents* tab_contents = delegate()->GetConstrainingContents(this); if (tab_contents && tab_contents->delegate()) tab_contents->delegate()->OnStartDownload(download, this); } void TabContents::WillClose(ConstrainedWindow* window) { ConstrainedWindowList::iterator i( std::find(child_windows_.begin(), child_windows_.end(), window)); bool removed_topmost_window = i == child_windows_.begin(); if (i != child_windows_.end()) child_windows_.erase(i); if (child_windows_.empty()) { BlockTabContent(false); } else { if (removed_topmost_window) child_windows_[0]->ShowConstrainedWindow(); BlockTabContent(true); } } void TabContents::WillCloseBlockedContentContainer( BlockedContentContainer* container) { DCHECK(blocked_contents_ == container); blocked_contents_ = NULL; PopupNotificationVisibilityChanged(false); } void TabContents::DidMoveOrResize(ConstrainedWindow* window) { #if defined(OS_WIN) UpdateWindow(GetNativeView()); #endif } void TabContents::OnSavePage() { // If we can not save the page, try to download it. if (!SavePackage::IsSavableContents(contents_mime_type())) { DownloadManager* dlm = profile()->GetDownloadManager(); const GURL& current_page_url = GetURL(); if (dlm && current_page_url.is_valid()) dlm->DownloadUrl(current_page_url, GURL(), "", this); return; } Stop(); // Create the save package and possibly prompt the user for the name to save // the page as. The user prompt is an asynchronous operation that runs on // another thread. save_package_ = new SavePackage(this); save_package_->GetSaveInfo(); } // Used in automated testing to bypass prompting the user for file names. // Instead, the names and paths are hard coded rather than running them through // file name sanitation and extension / mime checking. bool TabContents::SavePage(const FilePath& main_file, const FilePath& dir_path, SavePackage::SavePackageType save_type) { // Stop the page from navigating. Stop(); save_package_ = new SavePackage(this, save_type, main_file, dir_path); return save_package_->Init(); } void TabContents::EmailPageLocation() { std::string title = EscapeQueryParamValue(UTF16ToUTF8(GetTitle()), false); std::string page_url = EscapeQueryParamValue(GetURL().spec(), false); std::string mailto = std::string("mailto:?subject=Fwd:%20") + title + "&body=%0A%0A" + page_url; platform_util::OpenExternal(GURL(mailto)); } void TabContents::PrintPreview() { if (CommandLine::ForCurrentProcess()->HasSwitch( switches::kEnablePrintPreview)) { if (showing_interstitial_page()) return; printing::PrintPreviewTabController* tab_controller = printing::PrintPreviewTabController::GetInstance(); if (!tab_controller) return; tab_controller->GetOrCreatePreviewTab(this, controller().window_id().id()); render_view_host()->PrintPreview(); } else { PrintNow(); } } bool TabContents::PrintNow() { // We can't print interstitial page for now. if (showing_interstitial_page()) return false; return render_view_host()->PrintPages(); } void TabContents::PrintingDone(int document_cookie, bool success) { render_view_host()->PrintingDone(document_cookie, success); } bool TabContents::IsActiveEntry(int32 page_id) { NavigationEntry* active_entry = controller_.GetActiveEntry(); return (active_entry != NULL && active_entry->site_instance() == GetSiteInstance() && active_entry->page_id() == page_id); } void TabContents::SetOverrideEncoding(const std::string& encoding) { set_encoding(encoding); render_view_host()->SetPageEncoding(encoding); } void TabContents::ResetOverrideEncoding() { reset_encoding(); render_view_host()->ResetPageEncodingToDefault(); } void TabContents::WindowMoveOrResizeStarted() { render_view_host()->WindowMoveOrResizeStarted(); } void TabContents::SetAllContentsBlocked(bool value) { if (all_contents_blocked_ == value) return; all_contents_blocked_ = value; if (!all_contents_blocked_ && blocked_contents_) { std::vector blocked; blocked_contents_->GetBlockedContents(&blocked); for (size_t i = 0; i < blocked.size(); ++i) blocked_contents_->LaunchForContents(blocked[i]); } } void TabContents::LogNewTabTime(const std::string& event_name) { // Not all new tab pages get timed. In those cases, we don't have a // new_tab_start_time_. if (new_tab_start_time_.is_null()) return; base::TimeDelta duration = base::TimeTicks::Now() - new_tab_start_time_; MetricEventDurationDetails details(event_name, static_cast(duration.InMilliseconds())); if (event_name == "Tab.NewTabScriptStart") { UMA_HISTOGRAM_TIMES("Tab.NewTabScriptStart", duration); } else if (event_name == "Tab.NewTabDOMContentLoaded") { UMA_HISTOGRAM_TIMES("Tab.NewTabDOMContentLoaded", duration); } else if (event_name == "Tab.NewTabOnload") { UMA_HISTOGRAM_TIMES("Tab.NewTabOnload", duration); // The new tab page has finished loading; reset it. new_tab_start_time_ = base::TimeTicks(); } else { NOTREACHED(); } NotificationService::current()->Notify( NotificationType::METRIC_EVENT_DURATION, Source(this), Details(&details)); } void TabContents::OnCloseStarted() { if (tab_close_start_time_.is_null()) tab_close_start_time_ = base::TimeTicks::Now(); } bool TabContents::ShouldAcceptDragAndDrop() const { #if defined(OS_CHROMEOS) // ChromeOS panels (pop-ups) do not take drag-n-drop. // See http://crosbug.com/2413 if (delegate() && delegate()->IsPopup(this)) return false; return true; #else return true; #endif } void TabContents::SystemDragEnded() { if (render_view_host()) render_view_host()->DragSourceSystemDragEnded(); if (delegate()) delegate()->DragEnded(); } void TabContents::UpdateHistoryForNavigation( scoped_refptr add_page_args) { if (profile()->IsOffTheRecord()) return; // Add to history service. HistoryService* hs = profile()->GetHistoryService(Profile::IMPLICIT_ACCESS); if (hs) hs->AddPage(*add_page_args); } void TabContents::UpdateHistoryPageTitle(const NavigationEntry& entry) { if (profile()->IsOffTheRecord()) return; HistoryService* hs = profile()->GetHistoryService(Profile::IMPLICIT_ACCESS); if (hs) hs->SetPageTitle(entry.virtual_url(), entry.title()); } double TabContents::GetZoomLevel() const { HostZoomMap* zoom_map = profile()->GetHostZoomMap(); if (!zoom_map) return 0; double zoom_level; if (temporary_zoom_settings_) { zoom_level = zoom_map->GetTemporaryZoomLevel( GetRenderProcessHost()->id(), render_view_host()->routing_id()); } else { zoom_level = zoom_map->GetZoomLevel(GetURL()); } return zoom_level; } int TabContents::GetZoomPercent(bool* enable_increment, bool* enable_decrement) { *enable_decrement = *enable_increment = false; int percent = static_cast( WebKit::WebView::zoomLevelToZoomFactor(GetZoomLevel()) * 100); *enable_decrement = percent > minimum_zoom_percent_; *enable_increment = percent < maximum_zoom_percent_; return percent; } void TabContents::ViewSource() { if (!delegate_) return; NavigationEntry* active_entry = controller().GetActiveEntry(); if (!active_entry) return; delegate_->ViewSourceForTab(this, active_entry->url()); } void TabContents::OnDidStartProvisionalLoadForFrame(int64 frame_id, bool is_main_frame, const GURL& url) { bool is_error_page = (url.spec() == chrome::kUnreachableWebDataURL); GURL validated_url(url); render_view_host()->FilterURL(ChildProcessSecurityPolicy::GetInstance(), GetRenderProcessHost()->id(), &validated_url); ProvisionalLoadDetails details( is_main_frame, controller_.IsURLInPageNavigation(validated_url), validated_url, std::string(), false, is_error_page, frame_id); NotificationService::current()->Notify( NotificationType::FRAME_PROVISIONAL_LOAD_START, Source(&controller_), Details(&details)); if (is_main_frame) { // If we're displaying a network error page do not reset the content // settings delegate's cookies so the user has a chance to modify cookie // settings. if (!is_error_page) content_settings_delegate_->ClearCookieSpecificContentSettings(); content_settings_delegate_->ClearGeolocationContentSettings(); // Check if the URL we are about to load has been prerendered by any chance, // and use it if possible. MaybeUsePreloadedPage(url); } } void TabContents::OnDidRedirectProvisionalLoad(int32 page_id, const GURL& source_url, const GURL& target_url) { NavigationEntry* entry; if (page_id == -1) entry = controller_.pending_entry(); else entry = controller_.GetEntryWithPageID(GetSiteInstance(), page_id); if (!entry || entry->url() != source_url) return; entry->set_url(target_url); // Check if the URL we are about to load has been prerendered by any chance, // and use it if possible. MaybeUsePreloadedPage(target_url); } void TabContents::OnDidFailProvisionalLoadWithError( int64 frame_id, bool is_main_frame, int error_code, const GURL& url, bool showing_repost_interstitial) { VLOG(1) << "Failed Provisional Load: " << url.possibly_invalid_spec() << ", error_code: " << error_code << " is_main_frame: " << is_main_frame << " showing_repost_interstitial: " << showing_repost_interstitial << " frame_id: " << frame_id; GURL validated_url(url); render_view_host()->FilterURL(ChildProcessSecurityPolicy::GetInstance(), GetRenderProcessHost()->id(), &validated_url); if (net::ERR_ABORTED == error_code) { // EVIL HACK ALERT! Ignore failed loads when we're showing interstitials. // This means that the interstitial won't be torn down properly, which is // bad. But if we have an interstitial, go back to another tab type, and // then load the same interstitial again, we could end up getting the first // interstitial's "failed" message (as a result of the cancel) when we're on // the second one. // // We can't tell this apart, so we think we're tearing down the current page // which will cause a crash later one. There is also some code in // RenderViewHostManager::RendererAbortedProvisionalLoad that is commented // out because of this problem. // // http://code.google.com/p/chromium/issues/detail?id=2855 // Because this will not tear down the interstitial properly, if "back" is // back to another tab type, the interstitial will still be somewhat alive // in the previous tab type. If you navigate somewhere that activates the // tab with the interstitial again, you'll see a flash before the new load // commits of the interstitial page. if (showing_interstitial_page()) { LOG(WARNING) << "Discarding message during interstitial."; return; } // This will discard our pending entry if we cancelled the load (e.g., if we // decided to download the file instead of load it). Only discard the // pending entry if the URLs match, otherwise the user initiated a navigate // before the page loaded so that the discard would discard the wrong entry. NavigationEntry* pending_entry = controller_.pending_entry(); if (pending_entry && pending_entry->url() == validated_url) { controller_.DiscardNonCommittedEntries(); // Update the URL display. NotifyNavigationStateChanged(TabContents::INVALIDATE_URL); } render_manager_.RendererAbortedProvisionalLoad(render_view_host()); } // Send out a notification that we failed a provisional load with an error. ProvisionalLoadDetails details( is_main_frame, controller_.IsURLInPageNavigation(validated_url), validated_url, std::string(), false, false, frame_id); details.set_error_code(error_code); NotificationService::current()->Notify( NotificationType::FAIL_PROVISIONAL_LOAD_WITH_ERROR, Source(&controller_), Details(&details)); } void TabContents::OnDidLoadResourceFromMemoryCache( const GURL& url, const std::string& security_info) { static base::StatsCounter cache("WebKit.CacheHit"); cache.Increment(); // Send out a notification that we loaded a resource from our memory cache. int cert_id = 0, cert_status = 0, security_bits = -1, connection_status = 0; SSLManager::DeserializeSecurityInfo(security_info, &cert_id, &cert_status, &security_bits, &connection_status); LoadFromMemoryCacheDetails details(url, GetRenderProcessHost()->id(), cert_id, cert_status); NotificationService::current()->Notify( NotificationType::LOAD_FROM_MEMORY_CACHE, Source(&controller_), Details(&details)); } void TabContents::OnDidDisplayInsecureContent() { displayed_insecure_content_ = true; SSLManager::NotifySSLInternalStateChanged(); } void TabContents::OnDidRunInsecureContent( const std::string& security_origin, const GURL& target_url) { LOG(INFO) << security_origin << " ran insecure content from " << target_url.possibly_invalid_spec(); controller_.ssl_manager()->DidRunInsecureContent(security_origin); } void TabContents::OnDocumentLoadedInFrame(int64 frame_id) { controller_.DocumentLoadedInFrame(); NotificationService::current()->Notify( NotificationType::FRAME_DOM_CONTENT_LOADED, Source(&controller_), Details(&frame_id)); } void TabContents::OnDidFinishLoad(int64 frame_id) { NotificationService::current()->Notify( NotificationType::FRAME_DID_FINISH_LOAD, Source(&controller_), Details(&frame_id)); } void TabContents::OnUpdateContentRestrictions(int restrictions) { content_restrictions_ = restrictions; delegate()->ContentRestrictionsChanged(this); } void TabContents::OnPDFHasUnsupportedFeature() { PDFHasUnsupportedFeature(this); } // Notifies the RenderWidgetHost instance about the fact that the page is // loading, or done loading and calls the base implementation. void TabContents::SetIsLoading(bool is_loading, LoadNotificationDetails* details) { if (is_loading == is_loading_) return; if (!is_loading) { load_state_ = net::LOAD_STATE_IDLE; load_state_host_.clear(); upload_size_ = 0; upload_position_ = 0; } render_manager_.SetIsLoading(is_loading); is_loading_ = is_loading; waiting_for_response_ = is_loading; if (delegate_) delegate_->LoadingStateChanged(this); NotifyNavigationStateChanged(INVALIDATE_LOAD); NotificationType type = is_loading ? NotificationType::LOAD_START : NotificationType::LOAD_STOP; NotificationDetails det = NotificationService::NoDetails(); if (details) det = Details(details); NotificationService::current()->Notify(type, Source(&controller_), det); } void TabContents::AddPopup(TabContents* new_contents, const gfx::Rect& initial_pos) { // A page can't spawn popups (or do anything else, either) until its load // commits, so when we reach here, the popup was spawned by the // NavigationController's last committed entry, not the active entry. For // example, if a page opens a popup in an onunload() handler, then the active // entry is the page to be loaded as we navigate away from the unloading // page. For this reason, we can't use GetURL() to get the opener URL, // because it returns the active entry. NavigationEntry* entry = controller_.GetLastCommittedEntry(); GURL creator = entry ? entry->virtual_url() : GURL::EmptyGURL(); if (creator.is_valid() && profile()->GetHostContentSettingsMap()->GetContentSetting( creator, CONTENT_SETTINGS_TYPE_POPUPS, "") == CONTENT_SETTING_ALLOW) { AddNewContents(new_contents, NEW_POPUP, initial_pos, true); } else { if (!blocked_contents_) blocked_contents_ = new BlockedContentContainer(this); blocked_contents_->AddTabContents(new_contents, NEW_POPUP, initial_pos, true); content_settings_delegate_->OnContentBlocked(CONTENT_SETTINGS_TYPE_POPUPS, std::string()); } } void TabContents::ExpireInfoBars( const NavigationController::LoadCommittedDetails& details) { // Only hide InfoBars when the user has done something that makes the main // frame load. We don't want various automatic or subframe navigations making // it disappear. if (!details.is_user_initiated_main_frame_load()) return; // NOTE: It is not safe to change the following code to count upwards or use // iterators, as the RemoveInfoBar() call synchronously modifies our delegate // list. for (size_t i = infobar_count(); i > 0; --i) { InfoBarDelegate* delegate = GetInfoBarDelegateAt(i - 1); if (delegate->ShouldExpire(details)) RemoveInfoBar(delegate); } } WebUI* TabContents::GetWebUIForCurrentState() { // When there is a pending navigation entry, we want to use the pending WebUI // that goes along with it to control the basic flags. For example, we want to // show the pending URL in the URL bar, so we want the display_url flag to // be from the pending entry. // // The confusion comes because there are multiple possibilities for the // initial load in a tab as a side effect of the way the RenderViewHostManager // works. // // - For the very first tab the load looks "normal". The new tab Web UI is // the pending one, and we want it to apply here. // // - For subsequent new tabs, they'll get a new SiteInstance which will then // get switched to the one previously associated with the new tab pages. // This switching will cause the manager to commit the RVH/WebUI. So we'll // have a committed Web UI in this case. // // This condition handles all of these cases: // // - First load in first tab: no committed nav entry + pending nav entry + // pending dom ui: // -> Use pending Web UI if any. // // - First load in second tab: no committed nav entry + pending nav entry + // no pending Web UI: // -> Use the committed Web UI if any. // // - Second navigation in any tab: committed nav entry + pending nav entry: // -> Use pending Web UI if any. // // - Normal state with no load: committed nav entry + no pending nav entry: // -> Use committed Web UI. if (controller_.pending_entry() && (controller_.GetLastCommittedEntry() || render_manager_.pending_web_ui())) return render_manager_.pending_web_ui(); return render_manager_.web_ui(); } void TabContents::DidNavigateMainFramePostCommit( const NavigationController::LoadCommittedDetails& details, const ViewHostMsg_FrameNavigate_Params& params) { if (opener_web_ui_type_ != WebUIFactory::kNoWebUI) { // If this is a window.open navigation, use the same WebUI as the renderer // that opened the window, as long as both renderers have the same // privileges. if (opener_web_ui_type_ == WebUIFactory::GetWebUIType(profile(), GetURL())) { WebUI* web_ui = WebUIFactory::CreateWebUIForURL(this, GetURL()); // web_ui might be NULL if the URL refers to a non-existent extension. if (web_ui) { render_manager_.SetWebUIPostCommit(web_ui); web_ui->RenderViewCreated(render_view_host()); } } opener_web_ui_type_ = WebUIFactory::kNoWebUI; } if (details.is_user_initiated_main_frame_load()) { // Clear the status bubble. This is a workaround for a bug where WebKit // doesn't let us know that the cursor left an element during a // transition (this is also why the mouse cursor remains as a hand after // clicking on a link); see bugs 1184641 and 980803. We don't want to // clear the bubble when a user navigates to a named anchor in the same // page. UpdateTargetURL(details.entry->page_id(), GURL()); } // Allow the new page to set the title again. received_page_title_ = false; // Get the favicon, either from history or request it from the net. fav_icon_helper_->FetchFavIcon(details.entry->url()); // Clear all page actions, blocked content notifications and browser actions // for this tab, unless this is an in-page navigation. if (!details.is_in_page) { ExtensionService* service = profile()->GetExtensionService(); if (service) { for (size_t i = 0; i < service->extensions()->size(); ++i) { ExtensionAction* browser_action = service->extensions()->at(i)->browser_action(); if (browser_action) { browser_action->ClearAllValuesForTab(controller().session_id().id()); NotificationService::current()->Notify( NotificationType::EXTENSION_BROWSER_ACTION_UPDATED, Source(browser_action), NotificationService::NoDetails()); } ExtensionAction* page_action = service->extensions()->at(i)->page_action(); if (page_action) { page_action->ClearAllValuesForTab(controller().session_id().id()); PageActionStateChanged(); } } } // Close blocked popups. if (blocked_contents_) { AutoReset auto_reset(&dont_notify_render_view_, true); blocked_contents_->Destroy(); blocked_contents_ = NULL; } // Clear "blocked" flags. content_settings_delegate_->ClearBlockedContentSettingsExceptForCookies(); content_settings_delegate_->GeolocationDidNavigate(details); // Once the main frame is navigated, we're no longer considered to have // displayed insecure content. displayed_insecure_content_ = false; } // Close constrained windows if necessary. if (!net::RegistryControlledDomainService::SameDomainOrHost( details.previous_url, details.entry->url())) CloseConstrainedWindows(); // Notify observers about navigation. FOR_EACH_OBSERVER(TabContentsObserver, observers_, DidNavigateMainFramePostCommit(details, params)); } void TabContents::DidNavigateAnyFramePostCommit( RenderViewHost* render_view_host, const NavigationController::LoadCommittedDetails& details, const ViewHostMsg_FrameNavigate_Params& params) { // If we navigate, start showing messages again. This does nothing to prevent // a malicious script from spamming messages, since the script could just // reload the page to stop blocking. suppress_javascript_messages_ = false; // Notify observers about navigation. FOR_EACH_OBSERVER(TabContentsObserver, observers_, DidNavigateAnyFramePostCommit(details, params)); // Let the LanguageState clear its state. language_state_.DidNavigate(details); } void TabContents::CloseConstrainedWindows() { // Clear out any constrained windows since we are leaving this page entirely. // We use indices instead of iterators in case CloseWindow does something // that may invalidate an iterator. for (size_t i = 0; i < child_windows_.size(); ++i) { ConstrainedWindow* window = child_windows_[child_windows_.size() - 1 - i]; if (window) { window->CloseConstrainedWindow(); BlockTabContent(false); } } } void TabContents::UpdateAlternateErrorPageURL() { GURL url = GetAlternateErrorPageURL(); render_view_host()->SetAlternateErrorPageURL(url); } void TabContents::UpdateWebPreferences() { render_view_host()->UpdateWebPreferences(GetWebkitPrefs()); } void TabContents::UpdateZoomLevel() { render_view_host()->SetZoomLevel(GetZoomLevel()); } void TabContents::UpdateMaxPageIDIfNecessary(SiteInstance* site_instance, RenderViewHost* rvh) { // If we are creating a RVH for a restored controller, then we might // have more page IDs than the SiteInstance's current max page ID. We must // make sure that the max page ID is larger than any restored page ID. // Note that it is ok for conflicting page IDs to exist in another tab // (i.e., NavigationController), but if any page ID is larger than the max, // the back/forward list will get confused. int max_restored_page_id = controller_.max_restored_page_id(); if (max_restored_page_id > 0) { int curr_max_page_id = site_instance->max_page_id(); if (max_restored_page_id > curr_max_page_id) { // Need to update the site instance immediately. site_instance->UpdateMaxPageID(max_restored_page_id); // Also tell the renderer to update its internal representation. We // need to reserve enough IDs to make all restored page IDs less than // the max. if (curr_max_page_id < 0) curr_max_page_id = 0; rvh->ReservePageIDRange(max_restored_page_id - curr_max_page_id); } } } scoped_refptr TabContents::CreateHistoryAddPageArgs( const GURL& virtual_url, const NavigationController::LoadCommittedDetails& details, const ViewHostMsg_FrameNavigate_Params& params) { scoped_refptr add_page_args( new history::HistoryAddPageArgs( params.url, base::Time::Now(), this, params.page_id, params.referrer, params.redirects, params.transition, history::SOURCE_BROWSED, details.did_replace_entry)); if (PageTransition::IsMainFrame(params.transition) && virtual_url != params.url) { // Hack on the "virtual" URL so that it will appear in history. For some // types of URLs, we will display a magic URL that is different from where // the page is actually navigated. We want the user to see in history what // they saw in the URL bar, so we add the virtual URL as a redirect. This // only applies to the main frame, as the virtual URL doesn't apply to // sub-frames. add_page_args->url = virtual_url; if (!add_page_args->redirects.empty()) add_page_args->redirects.back() = virtual_url; } return add_page_args; } bool TabContents::UpdateTitleForEntry(NavigationEntry* entry, const std::wstring& title) { // For file URLs without a title, use the pathname instead. In the case of a // synthesized title, we don't want the update to count toward the "one set // per page of the title to history." string16 final_title; bool explicit_set; if (entry->url().SchemeIsFile() && title.empty()) { final_title = UTF8ToUTF16(entry->url().ExtractFileName()); explicit_set = false; // Don't count synthetic titles toward the set limit. } else { TrimWhitespace(WideToUTF16Hack(title), TRIM_ALL, &final_title); explicit_set = true; } if (final_title == entry->title()) return false; // Nothing changed, don't bother. entry->set_title(final_title); if (!received_page_title_) { UpdateHistoryPageTitle(*entry); received_page_title_ = explicit_set; } // Lastly, set the title for the view. view_->SetPageTitle(UTF16ToWideHack(final_title)); NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_TITLE_UPDATED, Source(this), NotificationService::NoDetails()); return true; } void TabContents::NotifySwapped() { // After sending out a swap notification, we need to send a disconnect // notification so that clients that pick up a pointer to |this| can NULL the // pointer. See Bug 1230284. notify_disconnection_ = true; NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_SWAPPED, Source(this), NotificationService::NoDetails()); } void TabContents::NotifyConnected() { notify_disconnection_ = true; NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_CONNECTED, Source(this), NotificationService::NoDetails()); } void TabContents::NotifyDisconnected() { if (!notify_disconnection_) return; notify_disconnection_ = false; NotificationService::current()->Notify( NotificationType::TAB_CONTENTS_DISCONNECTED, Source(this), NotificationService::NoDetails()); } void TabContents::OnGoToEntryAtOffset(int offset) { if (!delegate_ || delegate_->OnGoToEntryOffset(offset)) { NavigationEntry* entry = controller_.GetEntryAtOffset(offset); if (!entry) return; // Note that we don't call NavigationController::GotToOffset() as we don't // want to create a pending navigation entry (it might end up lingering // http://crbug.com/51680). entry->set_transition_type(entry->transition_type() | PageTransition::FORWARD_BACK); NavigateToEntry(*entry, NavigationController::NO_RELOAD); } } void TabContents::OnDidGetApplicationInfo(int32 page_id, const WebApplicationInfo& info) { web_app_info_ = info; if (delegate()) delegate()->OnDidGetApplicationInfo(this, page_id); } void TabContents::OnInstallApplication(const WebApplicationInfo& info) { if (delegate()) delegate()->OnInstallApplication(this, info); } void TabContents::OnPageContents(const GURL& url, int32 page_id, const string16& contents, const std::string& language, bool page_translatable) { // Don't index any https pages. People generally don't want their bank // accounts, etc. indexed on their computer, especially since some of these // things are not marked cachable. // TODO(brettw) we may want to consider more elaborate heuristics such as // the cachability of the page. We may also want to consider subframes (this // test will still index subframes if the subframe is SSL). // TODO(zelidrag) bug chromium-os:2808 - figure out if we want to reenable // content indexing for chromeos in some future releases. #if !defined(OS_CHROMEOS) if (!url.SchemeIsSecure()) { Profile* p = profile(); if (p && !p->IsOffTheRecord()) { HistoryService* hs = p->GetHistoryService(Profile::IMPLICIT_ACCESS); if (hs) hs->SetPageContents(url, contents); } } #endif language_state_.LanguageDetermined(language, page_translatable); std::string lang = language; NotificationService::current()->Notify( NotificationType::TAB_LANGUAGE_DETERMINED, Source(this), Details(&lang)); // Generate the thumbnail here if the in-browser thumbnailing is enabled. if (CommandLine::ForCurrentProcess()->HasSwitch( switches::kEnableInBrowserThumbnailing)) { ThumbnailGenerator::UpdateThumbnailIfNecessary(this, url); } } void TabContents::OnPageTranslated(int32 page_id, const std::string& original_lang, const std::string& translated_lang, TranslateErrors::Type error_type) { language_state_.set_current_language(translated_lang); language_state_.set_translation_pending(false); PageTranslatedDetails details(original_lang, translated_lang, error_type); NotificationService::current()->Notify( NotificationType::PAGE_TRANSLATED, Source(this), Details(&details)); } void TabContents::OnSetSuggestions( int32 page_id, const std::vector& suggestions) { if (delegate()) delegate()->OnSetSuggestions(page_id, suggestions); } void TabContents::OnInstantSupportDetermined(int32 page_id, bool result) { if (delegate()) delegate()->OnInstantSupportDetermined(page_id, result); } void TabContents::OnRunFileChooser( const ViewHostMsg_RunFileChooser_Params& params) { if (file_select_helper_.get() == NULL) file_select_helper_.reset(new FileSelectHelper(profile())); file_select_helper_->RunFileChooser(render_view_host(), params); } void TabContents::OnContentSettingsAccessed(bool content_was_blocked) { if (delegate_) delegate_->OnContentSettingsChange(this); } RenderViewHostDelegate::View* TabContents::GetViewDelegate() { return view_.get(); } RenderViewHostDelegate::RendererManagement* TabContents::GetRendererManagementDelegate() { return &render_manager_; } RenderViewHostDelegate::ContentSettings* TabContents::GetContentSettingsDelegate() { return content_settings_delegate_.get(); } RenderViewHostDelegate::SSL* TabContents::GetSSLDelegate() { return GetSSLHelper(); } AutomationResourceRoutingDelegate* TabContents::GetAutomationResourceRoutingDelegate() { return delegate(); } RenderViewHostDelegate::BookmarkDrag* TabContents::GetBookmarkDragDelegate() { return bookmark_drag_; } void TabContents::SetBookmarkDragDelegate( RenderViewHostDelegate::BookmarkDrag* bookmark_drag) { bookmark_drag_ = bookmark_drag; } TabSpecificContentSettings* TabContents::GetTabSpecificContentSettings() const { return content_settings_delegate_.get(); } RendererPreferences TabContents::GetRendererPrefs(Profile* profile) const { return renderer_preferences_; } TabContents* TabContents::GetAsTabContents() { return this; } ViewType::Type TabContents::GetRenderViewType() const { return ViewType::TAB_CONTENTS; } int TabContents::GetBrowserWindowID() const { return controller().window_id().id(); } void TabContents::RenderViewCreated(RenderViewHost* render_view_host) { NotificationService::current()->Notify( NotificationType::RENDER_VIEW_HOST_CREATED_FOR_TAB, Source(this), Details(render_view_host)); NavigationEntry* entry = controller_.GetActiveEntry(); if (!entry) return; // When we're creating views, we're still doing initial setup, so we always // use the pending Web UI rather than any possibly existing committed one. if (render_manager_.pending_web_ui()) { render_manager_.pending_web_ui()->RenderViewCreated(render_view_host); } if (entry->IsViewSourceMode()) { // Put the renderer in view source mode. render_view_host->Send( new ViewMsg_EnableViewSourceMode(render_view_host->routing_id())); } view()->RenderViewCreated(render_view_host); } void TabContents::RenderViewReady(RenderViewHost* rvh) { if (rvh != render_view_host()) { // Don't notify the world, since this came from a renderer in the // background. return; } NotifyConnected(); bool was_crashed = is_crashed(); SetIsCrashed(base::TERMINATION_STATUS_STILL_RUNNING, 0); // Restore the focus to the tab (otherwise the focus will be on the top // window). if (was_crashed && !FocusLocationBarByDefault() && (!delegate_ || delegate_->ShouldFocusPageAfterCrash())) { Focus(); } } void TabContents::RenderViewGone(RenderViewHost* rvh, base::TerminationStatus status, int error_code) { // Ask the print preview if this renderer was valuable. if (!printing_->OnRenderViewGone(rvh)) return; if (rvh != render_view_host()) { // The pending page's RenderViewHost is gone. return; } SetIsLoading(false, NULL); NotifyDisconnected(); SetIsCrashed(status, error_code); // Remove all infobars. while (!infobar_delegates_.empty()) RemoveInfoBar(GetInfoBarDelegateAt(infobar_count() - 1)); // Tell the view that we've crashed so it can prepare the sad tab page. // Only do this if we're not in browser shutdown, so that TabContents // objects that are not in a browser (e.g., HTML dialogs) and thus are // visible do not flash a sad tab page. if (browser_shutdown::GetShutdownType() == browser_shutdown::NOT_VALID) view_->OnTabCrashed(status, error_code); // Hide any visible hung renderer warning for this web contents' process. hung_renderer_dialog::HideForTabContents(this); } void TabContents::RenderViewDeleted(RenderViewHost* rvh) { NotificationService::current()->Notify( NotificationType::RENDER_VIEW_HOST_DELETED, Source(this), Details(rvh)); render_manager_.RenderViewDeleted(rvh); } void TabContents::DidNavigate(RenderViewHost* rvh, const ViewHostMsg_FrameNavigate_Params& params) { int extra_invalidate_flags = 0; if (PageTransition::IsMainFrame(params.transition)) { if (MaybeUsePreloadedPage(params.url)) { return; } bool was_bookmark_bar_visible = ShouldShowBookmarkBar(); render_manager_.DidNavigateMainFrame(rvh); if (was_bookmark_bar_visible != ShouldShowBookmarkBar()) extra_invalidate_flags |= INVALIDATE_BOOKMARK_BAR; } // Update the site of the SiteInstance if it doesn't have one yet. if (!GetSiteInstance()->has_site()) GetSiteInstance()->SetSite(params.url); // Need to update MIME type here because it's referred to in // UpdateNavigationCommands() called by RendererDidNavigate() to // determine whether or not to enable the encoding menu. // It's updated only for the main frame. For a subframe, // RenderView::UpdateURL does not set params.contents_mime_type. // (see http://code.google.com/p/chromium/issues/detail?id=2929 ) // TODO(jungshik): Add a test for the encoding menu to avoid // regressing it again. if (PageTransition::IsMainFrame(params.transition)) contents_mime_type_ = params.contents_mime_type; NavigationController::LoadCommittedDetails details; bool did_navigate = controller_.RendererDidNavigate( params, extra_invalidate_flags, &details); // Send notification about committed provisional loads. This notification is // different from the NAV_ENTRY_COMMITTED notification which doesn't include // the actual URL navigated to and isn't sent for AUTO_SUBFRAME navigations. if (details.type != NavigationType::NAV_IGNORE) { // For AUTO_SUBFRAME navigations, an event for the main frame is generated // that is not recorded in the navigation history. For the purpose of // tracking navigation events, we treat this event as a sub frame navigation // event. bool is_main_frame = did_navigate ? details.is_main_frame : false; ProvisionalLoadDetails load_details( is_main_frame, details.is_in_page, params.url, std::string(), false, false, params.frame_id); load_details.set_transition_type(params.transition); // Whether or not a page transition was triggered by going backward or // forward in the history is only stored in the navigation controller's // entry list. if (did_navigate && (controller_.GetActiveEntry()->transition_type() & PageTransition::FORWARD_BACK)) { load_details.set_transition_type( params.transition | PageTransition::FORWARD_BACK); } NotificationService::current()->Notify( NotificationType::FRAME_PROVISIONAL_LOAD_COMMITTED, Source(&controller_), Details(&load_details)); } // Update history. Note that this needs to happen after the entry is complete, // which WillNavigate[Main,Sub]Frame will do before this function is called. if (params.should_update_history) { // Most of the time, the displayURL matches the loaded URL, but for about: // URLs, we use a data: URL as the real value. We actually want to save the // about: URL to the history db and keep the data: URL hidden. This is what // the TabContents' URL getter does. scoped_refptr add_page_args( CreateHistoryAddPageArgs(GetURL(), details, params)); if (!delegate() || delegate()->ShouldAddNavigationToHistory(*add_page_args, details.type)) { UpdateHistoryForNavigation(add_page_args); } } if (!did_navigate) return; // No navigation happened. // DO NOT ADD MORE STUFF TO THIS FUNCTION! Your component should either listen // for the appropriate notification (best) or you can add it to // DidNavigateMainFramePostCommit / DidNavigateAnyFramePostCommit (only if // necessary, please). // Run post-commit tasks. if (details.is_main_frame) DidNavigateMainFramePostCommit(details, params); DidNavigateAnyFramePostCommit(rvh, details, params); } void TabContents::UpdateState(RenderViewHost* rvh, int32 page_id, const std::string& state) { DCHECK(rvh == render_view_host()); // We must be prepared to handle state updates for any page, these occur // when the user is scrolling and entering form data, as well as when we're // leaving a page, in which case our state may have already been moved to // the next page. The navigation controller will look up the appropriate // NavigationEntry and update it when it is notified via the delegate. int entry_index = controller_.GetEntryIndexWithPageID( GetSiteInstance(), page_id); if (entry_index < 0) return; NavigationEntry* entry = controller_.GetEntryAtIndex(entry_index); if (state == entry->content_state()) return; // Nothing to update. entry->set_content_state(state); controller_.NotifyEntryChanged(entry, entry_index); } void TabContents::UpdateTitle(RenderViewHost* rvh, int32 page_id, const std::wstring& title) { // If we have a title, that's a pretty good indication that we've started // getting useful data. SetNotWaitingForResponse(); DCHECK(rvh == render_view_host()); NavigationEntry* entry = controller_.GetEntryWithPageID(rvh->site_instance(), page_id); if (!entry || !UpdateTitleForEntry(entry, title)) return; // Broadcast notifications when the UI should be updated. if (entry == controller_.GetEntryAtOffset(0)) NotifyNavigationStateChanged(INVALIDATE_TITLE); } void TabContents::UpdateEncoding(RenderViewHost* render_view_host, const std::string& encoding) { set_encoding(encoding); } void TabContents::UpdateTargetURL(int32 page_id, const GURL& url) { if (delegate()) delegate()->UpdateTargetURL(this, url); } void TabContents::UpdateThumbnail(const GURL& url, const SkBitmap& bitmap, const ThumbnailScore& score) { if (profile()->IsOffTheRecord()) return; // Tell History about this thumbnail history::TopSites* ts = profile()->GetTopSites(); if (ts) ts->SetPageThumbnail(url, bitmap, score); } void TabContents::UpdateInspectorSetting(const std::string& key, const std::string& value) { RenderViewHostDelegateHelper::UpdateInspectorSetting(profile(), key, value); } void TabContents::ClearInspectorSettings() { RenderViewHostDelegateHelper::ClearInspectorSettings(profile()); } void TabContents::Close(RenderViewHost* rvh) { // The UI may be in an event-tracking loop, such as between the // mouse-down and mouse-up in text selection or a button click. // Defer the close until after tracking is complete, so that we // don't free objects out from under the UI. // TODO(shess): This could probably be integrated with the // IsDoingDrag() test below. Punting for now because I need more // research to understand how this impacts platforms other than Mac. // TODO(shess): This could get more fine-grained. For instance, // closing a tab in another window while selecting text in the // current window's Omnibox should be just fine. if (view()->IsEventTracking()) { view()->CloseTabAfterEventTracking(); return; } // If we close the tab while we're in the middle of a drag, we'll crash. // Instead, cancel the drag and close it as soon as the drag ends. if (view()->IsDoingDrag()) { view()->CancelDragAndCloseTab(); return; } // Ignore this if it comes from a RenderViewHost that we aren't showing. if (delegate() && rvh == render_view_host()) delegate()->CloseContents(this); } void TabContents::RequestMove(const gfx::Rect& new_bounds) { if (delegate() && delegate()->IsPopup(this)) delegate()->MoveContents(this, new_bounds); } void TabContents::DidStartLoading() { SetIsLoading(true, NULL); if (delegate()) { bool is_print_preview_tab = printing::PrintPreviewTabController::IsPrintPreviewTab(this); if (content_restrictions_ || is_print_preview_tab) { content_restrictions_= is_print_preview_tab ? CONTENT_RESTRICTION_PRINT : 0; delegate()->ContentRestrictionsChanged(this); } } // Notify observers about navigation. FOR_EACH_OBSERVER(TabContentsObserver, observers_, DidStartLoading()); } void TabContents::DidStopLoading() { scoped_ptr details; NavigationEntry* entry = controller_.GetActiveEntry(); // An entry may not exist for a stop when loading an initial blank page or // if an iframe injected by script into a blank page finishes loading. if (entry) { base::TimeDelta elapsed = base::TimeTicks::Now() - current_load_start_; details.reset(new LoadNotificationDetails( entry->virtual_url(), entry->transition_type(), elapsed, &controller_, controller_.GetCurrentEntryIndex())); } SetIsLoading(false, details.get()); // Notify observers about navigation. FOR_EACH_OBSERVER(TabContentsObserver, observers_, DidStopLoading()); } void TabContents::DidChangeLoadProgress(double progress) { if (delegate()) delegate()->LoadProgressChanged(progress); } void TabContents::DocumentOnLoadCompletedInMainFrame( RenderViewHost* render_view_host, int32 page_id) { NotificationService::current()->Notify( NotificationType::LOAD_COMPLETED_MAIN_FRAME, Source(this), Details(&page_id)); } void TabContents::RequestOpenURL(const GURL& url, const GURL& referrer, WindowOpenDisposition disposition) { if (render_manager_.web_ui()) { // When we're a Web UI, it will provide a page transition type for us (this // is so the new tab page can specify AUTO_BOOKMARK for automatically // generated suggestions). // // Note also that we hide the referrer for Web UI pages. We don't really // want web sites to see a referrer of "chrome://blah" (and some // chrome: URLs might have search terms or other stuff we don't want to // send to the site), so we send no referrer. OpenURL(url, GURL(), disposition, render_manager_.web_ui()->link_transition_type()); } else { OpenURL(url, referrer, disposition, PageTransition::LINK); } } void TabContents::DomOperationResponse(const std::string& json_string, int automation_id) { } void TabContents::ProcessWebUIMessage( const ViewHostMsg_DomMessage_Params& params) { if (!render_manager_.web_ui()) { // This can happen if someone uses window.open() to open an extension URL // from a non-extension context. render_view_host()->BlockExtensionRequest(params.request_id); return; } render_manager_.web_ui()->ProcessWebUIMessage(params); } void TabContents::ProcessExternalHostMessage(const std::string& message, const std::string& origin, const std::string& target) { if (delegate()) delegate()->ForwardMessageToExternalHost(message, origin, target); } void TabContents::RunJavaScriptMessage( const std::wstring& message, const std::wstring& default_prompt, const GURL& frame_url, const int flags, IPC::Message* reply_msg, bool* did_suppress_message) { // Suppress javascript messages when requested and when inside a constrained // popup window (because that activates them and breaks them out of the // constrained window jail). // Also suppress messages when showing an interstitial. The interstitial is // shown over the previous page, we don't want the hidden page dialogs to // interfere with the interstitial. bool suppress_this_message = suppress_javascript_messages_ || showing_interstitial_page() || (delegate() && delegate()->ShouldSuppressDialogs()); if (delegate()) suppress_this_message |= (delegate()->GetConstrainingContents(this) != this); *did_suppress_message = suppress_this_message; if (!suppress_this_message) { base::TimeDelta time_since_last_message( base::TimeTicks::Now() - last_javascript_message_dismissal_); bool show_suppress_checkbox = false; // Show a checkbox offering to suppress further messages if this message is // being displayed within kJavascriptMessageExpectedDelay of the last one. if (time_since_last_message < base::TimeDelta::FromMilliseconds(kJavascriptMessageExpectedDelay)) show_suppress_checkbox = true; RunJavascriptMessageBox(profile(), this, frame_url, flags, message, default_prompt, show_suppress_checkbox, reply_msg); } else { // If we are suppressing messages, just reply as is if the user immediately // pressed "Cancel". OnMessageBoxClosed(reply_msg, false, std::wstring()); } } void TabContents::RunBeforeUnloadConfirm(const std::wstring& message, IPC::Message* reply_msg) { if (delegate()) delegate()->WillRunBeforeUnloadConfirm(); if (delegate() && delegate()->ShouldSuppressDialogs()) { render_view_host()->JavaScriptMessageBoxClosed(reply_msg, true, std::wstring()); return; } is_showing_before_unload_dialog_ = true; RunBeforeUnloadDialog(this, message, reply_msg); } void TabContents::ShowModalHTMLDialog(const GURL& url, int width, int height, const std::string& json_arguments, IPC::Message* reply_msg) { if (delegate()) { HtmlDialogUIDelegate* dialog_delegate = new ModalHtmlDialogDelegate(url, width, height, json_arguments, reply_msg, this); delegate()->ShowHtmlDialog(dialog_delegate, NULL); } } GURL TabContents::GetAlternateErrorPageURL() const { GURL url; // Disable alternate error pages when in OffTheRecord/Incognito mode. if (profile()->IsOffTheRecord()) return url; PrefService* prefs = profile()->GetPrefs(); DCHECK(prefs); if (prefs->GetBoolean(prefs::kAlternateErrorPagesEnabled)) { url = google_util::AppendGoogleLocaleParam( GURL(google_util::kLinkDoctorBaseURL)); url = google_util::AppendGoogleTLDParam(url); } return url; } WebPreferences TabContents::GetWebkitPrefs() { Profile* profile = render_view_host()->process()->profile(); bool is_web_ui = false; WebPreferences web_prefs = RenderViewHostDelegateHelper::GetWebkitPrefs(profile, is_web_ui); // Force accelerated compositing and 2d canvas off for chrome: and // chrome-extension: pages. if (GetURL().SchemeIs(chrome::kChromeDevToolsScheme) || GetURL().SchemeIs(chrome::kChromeUIScheme)) { web_prefs.accelerated_compositing_enabled = false; web_prefs.accelerated_2d_canvas_enabled = false; } #if defined(OS_MACOSX) // Disable accelerated compositing if IOSurface's are not supported, // as is the case in 10.5. if (!IOSurfaceSupport::Initialize()) web_prefs.accelerated_compositing_enabled = false; #endif return web_prefs; } void TabContents::OnUserGesture() { // See comment in RenderViewHostDelegate::OnUserGesture as to why we do this. DownloadRequestLimiter* limiter = g_browser_process->download_request_limiter(); if (limiter) limiter->OnUserGesture(this); ExternalProtocolHandler::PermitLaunchUrl(); } void TabContents::OnIgnoredUIEvent() { if (constrained_window_count()) { ConstrainedWindow* window = *constrained_window_begin(); window->FocusConstrainedWindow(); } } void TabContents::OnJSOutOfMemory() { AddInfoBar(new SimpleAlertInfoBarDelegate(this, NULL, l10n_util::GetStringUTF16(IDS_JS_OUT_OF_MEMORY_PROMPT), true)); } void TabContents::OnCrossSiteResponse(int new_render_process_host_id, int new_request_id) { // Allows the TabContents to react when a cross-site response is ready to be // delivered to a pending RenderViewHost. We must first run the onunload // handler of the old RenderViewHost before we can allow it to proceed. render_manager_.OnCrossSiteResponse(new_render_process_host_id, new_request_id); } void TabContents::RendererUnresponsive(RenderViewHost* rvh, bool is_during_unload) { if (is_during_unload) { // Hang occurred while firing the beforeunload/unload handler. // Pretend the handler fired so tab closing continues as if it had. rvh->set_sudden_termination_allowed(true); if (!render_manager_.ShouldCloseTabOnUnresponsiveRenderer()) return; // If the tab hangs in the beforeunload/unload handler there's really // nothing we can do to recover. Pretend the unload listeners have // all fired and close the tab. If the hang is in the beforeunload handler // then the user will not have the option of cancelling the close. Close(rvh); return; } if (render_view_host() && render_view_host()->IsRenderViewLive() && (!delegate() || delegate()->ShouldShowHungRendererDialog())) { hung_renderer_dialog::ShowForTabContents(this); } } void TabContents::RendererResponsive(RenderViewHost* render_view_host) { hung_renderer_dialog::HideForTabContents(this); } void TabContents::LoadStateChanged(const GURL& url, net::LoadState load_state, uint64 upload_position, uint64 upload_size) { load_state_ = load_state; upload_position_ = upload_position; upload_size_ = upload_size; std::wstring languages = UTF8ToWide(profile()->GetPrefs()->GetString(prefs::kAcceptLanguages)); std::string host = url.host(); load_state_host_ = WideToUTF16Hack( net::IDNToUnicode(host.c_str(), host.size(), languages, NULL)); if (load_state_ == net::LOAD_STATE_READING_RESPONSE) SetNotWaitingForResponse(); if (is_loading()) NotifyNavigationStateChanged(INVALIDATE_LOAD | INVALIDATE_TAB); } bool TabContents::IsExternalTabContainer() const { if (!delegate()) return false; return delegate()->IsExternalTabContainer(); } void TabContents::DidInsertCSS() { // This RVHDelegate function is used for extensions and not us. } void TabContents::FocusedNodeChanged(bool is_editable_node) { NotificationService::current()->Notify( NotificationType::FOCUS_CHANGED_IN_PAGE, Source(this), Details(&is_editable_node)); } void TabContents::UpdateZoomLimits(int minimum_percent, int maximum_percent, bool remember) { minimum_zoom_percent_ = minimum_percent; maximum_zoom_percent_ = maximum_percent; temporary_zoom_settings_ = !remember; } void TabContents::WorkerCrashed() { AddInfoBar(new SimpleAlertInfoBarDelegate(this, NULL, l10n_util::GetStringUTF16(IDS_WEBWORKER_CRASHED_PROMPT), true)); } void TabContents::BeforeUnloadFiredFromRenderManager( bool proceed, bool* proceed_to_fire_unload) { if (delegate()) delegate()->BeforeUnloadFired(this, proceed, proceed_to_fire_unload); } void TabContents::DidStartLoadingFromRenderManager( RenderViewHost* render_view_host) { DidStartLoading(); } void TabContents::RenderViewGoneFromRenderManager( RenderViewHost* render_view_host) { DCHECK(crashed_status_ != base::TERMINATION_STATUS_STILL_RUNNING); RenderViewGone(render_view_host, crashed_status_, crashed_error_code_); } void TabContents::UpdateRenderViewSizeForRenderManager() { // TODO(brettw) this is a hack. See TabContentsView::SizeContents. gfx::Size size = view_->GetContainerSize(); // 0x0 isn't a valid window size (minimal window size is 1x1) but it may be // here during container initialization and normal window size will be set // later. In case of tab duplication this resizing to 0x0 prevents setting // normal size later so just ignore it. if (!size.IsEmpty()) view_->SizeContents(size); } void TabContents::NotifySwappedFromRenderManager() { NotifySwapped(); } NavigationController& TabContents::GetControllerForRenderManager() { return controller(); } WebUI* TabContents::CreateWebUIForRenderManager(const GURL& url) { return WebUIFactory::CreateWebUIForURL(this, url); } NavigationEntry* TabContents::GetLastCommittedNavigationEntryForRenderManager() { return controller_.GetLastCommittedEntry(); } bool TabContents::CreateRenderViewForRenderManager( RenderViewHost* render_view_host) { RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(render_view_host); if (!render_view_host->CreateRenderView(string16())) return false; // Now that the RenderView has been created, we need to tell it its size. rwh_view->SetSize(view_->GetContainerSize()); UpdateMaxPageIDIfNecessary(render_view_host->site_instance(), render_view_host); return true; } void TabContents::Observe(NotificationType type, const NotificationSource& source, const NotificationDetails& details) { switch (type.value) { case NotificationType::PREF_CHANGED: { std::string* pref_name_in = Details(details).ptr(); DCHECK(Source(source).ptr() == profile()->GetPrefs()); if (*pref_name_in == prefs::kAlternateErrorPagesEnabled) { UpdateAlternateErrorPageURL(); } else if ((*pref_name_in == prefs::kDefaultCharset) || StartsWithASCII(*pref_name_in, "webkit.webprefs.", true)) { UpdateWebPreferences(); } else if (*pref_name_in == prefs::kDefaultZoomLevel) { UpdateZoomLevel(); } else { NOTREACHED() << "unexpected pref change notification" << *pref_name_in; } break; } case NotificationType::RENDER_WIDGET_HOST_DESTROYED: view_->RenderWidgetHostDestroyed(Source(source).ptr()); break; case NotificationType::NAV_ENTRY_COMMITTED: { DCHECK(&controller_ == Source(source).ptr()); NavigationController::LoadCommittedDetails& committed_details = *(Details(details).ptr()); ExpireInfoBars(committed_details); break; } #if defined(OS_LINUX) case NotificationType::BROWSER_THEME_CHANGED: { renderer_preferences_util::UpdateFromSystemSettings( &renderer_preferences_, profile()); render_view_host()->SyncRendererPrefs(); break; } #endif case NotificationType::USER_STYLE_SHEET_UPDATED: UpdateWebPreferences(); break; case NotificationType::CONTENT_SETTINGS_CHANGED: { Details settings_details(details); NavigationEntry* entry = controller_.GetActiveEntry(); GURL entry_url; if (entry) entry_url = entry->url(); if (settings_details.ptr()->update_all() || settings_details.ptr()->pattern().Matches(entry_url)) { render_view_host()->SendContentSettings(entry_url, profile()->GetHostContentSettingsMap()-> GetContentSettings(entry_url)); } break; } case NotificationType::EXTENSION_LOADED: break; case NotificationType::EXTENSION_UNLOADED: break; case NotificationType::GOOGLE_URL_UPDATED: UpdateAlternateErrorPageURL(); break; default: NOTREACHED(); } } void TabContents::UpdateExtensionAppIcon(const Extension* extension) { extension_app_icon_.reset(); if (extension) { extension_app_image_loader_.reset(new ImageLoadingTracker(this)); extension_app_image_loader_->LoadImage( extension, extension->GetIconResource(Extension::EXTENSION_ICON_SMALLISH, ExtensionIconSet::MATCH_EXACTLY), gfx::Size(Extension::EXTENSION_ICON_SMALLISH, Extension::EXTENSION_ICON_SMALLISH), ImageLoadingTracker::CACHE); } else { extension_app_image_loader_.reset(NULL); } } const Extension* TabContents::GetExtensionContaining(const GURL& url) { ExtensionService* extensions_service = profile()->GetExtensionService(); if (!extensions_service) return NULL; const Extension* extension = extensions_service->GetExtensionByURL(url); return extension ? extension : extensions_service->GetExtensionByWebExtent(url); } void TabContents::OnImageLoaded(SkBitmap* image, ExtensionResource resource, int index) { if (image) { extension_app_icon_ = *image; NotifyNavigationStateChanged(INVALIDATE_TAB); } } gfx::NativeWindow TabContents::GetMessageBoxRootWindow() { return view_->GetTopLevelNativeWindow(); } void TabContents::OnMessageBoxClosed(IPC::Message* reply_msg, bool success, const std::wstring& prompt) { last_javascript_message_dismissal_ = base::TimeTicks::Now(); if (is_showing_before_unload_dialog_ && !success) { // If a beforeunload dialog is canceled, we need to stop the throbber from // spinning, since we forced it to start spinning in Navigate. DidStopLoading(); tab_close_start_time_ = base::TimeTicks(); } is_showing_before_unload_dialog_ = false; render_view_host()->JavaScriptMessageBoxClosed(reply_msg, success, prompt); } void TabContents::SetSuppressMessageBoxes(bool suppress_message_boxes) { set_suppress_javascript_messages(suppress_message_boxes); } TabContents* TabContents::AsTabContents() { return this; } ExtensionHost* TabContents::AsExtensionHost() { return NULL; } void TabContents::set_encoding(const std::string& encoding) { encoding_ = CharacterEncoding::GetCanonicalEncodingNameByAliasName(encoding); } void TabContents::SetAppIcon(const SkBitmap& app_icon) { app_icon_ = app_icon; NotifyNavigationStateChanged(INVALIDATE_TITLE); } void TabContents::SwapInRenderViewHost(RenderViewHost* rvh) { render_manager_.SwapInRenderViewHost(rvh); } void TabContents::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) { RenderWidgetHostView* rwh_view = view()->CreateViewForWidget(rvh); rwh_view->SetSize(view()->GetContainerSize()); } bool TabContents::MaybeUsePreloadedPage(const GURL& url) { prerender::PrerenderManager* pm = profile()->GetPrerenderManager(); if (pm != NULL) { if (pm->MaybeUsePreloadedPage(this, url)) return true; } return false; }