TabContentsWrapper -> TabContents, part 1.

chrome/browser/ui/tab_contents/tab_contents_wrapper.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-
-#include "base/command_line.h"
-#include "base/lazy_instance.h"
-#include "chrome/browser/autocomplete_history_manager.h"
-#include "chrome/browser/autofill/autofill_external_delegate.h"
-#include "chrome/browser/autofill/autofill_manager.h"
-#include "chrome/browser/automation/automation_tab_helper.h"
-#include "chrome/browser/content_settings/tab_specific_content_settings.h"
-#include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
-#include "chrome/browser/extensions/extension_tab_helper.h"
-#include "chrome/browser/external_protocol/external_protocol_observer.h"
-#include "chrome/browser/favicon/favicon_tab_helper.h"
-#include "chrome/browser/history/history_tab_helper.h"
-#include "chrome/browser/infobars/infobar_tab_helper.h"
-#include "chrome/browser/omnibox_search_hint.h"
-#include "chrome/browser/password_manager/password_manager.h"
-#include "chrome/browser/password_manager/password_manager_delegate_impl.h"
-#include "chrome/browser/plugin_observer.h"
-#include "chrome/browser/prerender/prerender_tab_helper.h"
-#include "chrome/browser/printing/print_preview_message_handler.h"
-#include "chrome/browser/printing/print_view_manager.h"
-#include "chrome/browser/safe_browsing/safe_browsing_tab_observer.h"
-#include "chrome/browser/sessions/restore_tab_helper.h"
-#include "chrome/browser/tab_contents/tab_contents_ssl_helper.h"
-#include "chrome/browser/tab_contents/thumbnail_generator.h"
-#include "chrome/browser/translate/translate_tab_helper.h"
-#include "chrome/browser/ui/alternate_error_tab_observer.h"
-#include "chrome/browser/ui/blocked_content/blocked_content_tab_helper.h"
-#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
-#include "chrome/browser/ui/constrained_window_tab_helper.h"
-#include "chrome/browser/ui/find_bar/find_tab_helper.h"
-#include "chrome/browser/ui/hung_plugin_tab_helper.h"
-#include "chrome/browser/ui/intents/web_intent_picker_controller.h"
-#include "chrome/browser/ui/pdf/pdf_tab_observer.h"
-#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
-#include "chrome/browser/ui/sad_tab_helper.h"
-#include "chrome/browser/ui/search_engines/search_engine_tab_helper.h"
-#include "chrome/browser/ui/snapshot_tab_helper.h"
-#include "chrome/browser/ui/sync/one_click_signin_helper.h"
-#include "chrome/browser/ui/sync/tab_contents_wrapper_synced_tab_delegate.h"
-#include "chrome/browser/ui/tab_contents/core_tab_helper.h"
-#include "chrome/browser/view_type_utils.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/thumbnail_support.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/web_contents.h"
-
-#if defined(OS_WIN)
-#include "base/win/metro.h"
-#endif
-
-using content::WebContents;
-
-namespace {
-
-static base::LazyInstance<base::PropertyAccessor<TabContentsWrapper*> >
-    g_tab_contents_wrapper_property_accessor = LAZY_INSTANCE_INITIALIZER;
-
-}  // namespace
-
-////////////////////////////////////////////////////////////////////////////////
-// TabContentsWrapper, public:
-
-TabContentsWrapper::TabContentsWrapper(WebContents* contents)
-    : content::WebContentsObserver(contents),
-      in_destructor_(false),
-      web_contents_(contents) {
-  DCHECK(contents);
-  DCHECK(!GetCurrentWrapperForContents(contents));
-
-  chrome::SetViewType(contents, chrome::VIEW_TYPE_TAB_CONTENTS);
-
-  // Stash this in the property bag so it can be retrieved without having to
-  // go to a Browser.
-  property_accessor()->SetProperty(contents->GetPropertyBag(), this);
-
-  // Create the tab helpers.
-  autocomplete_history_manager_.reset(new AutocompleteHistoryManager(contents));
-  autofill_manager_ = new AutofillManager(this);
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kExternalAutofillPopup)) {
-    autofill_external_delegate_.reset(
-        AutofillExternalDelegate::Create(this, autofill_manager_.get()));
-    autofill_manager_->SetExternalDelegate(autofill_external_delegate_.get());
-    autocomplete_history_manager_->SetExternalDelegate(
-        autofill_external_delegate_.get());
-  }
-#if defined(ENABLE_AUTOMATION)
-  automation_tab_helper_.reset(new AutomationTabHelper(contents));
-#endif
-  blocked_content_tab_helper_.reset(new BlockedContentTabHelper(this));
-  bookmark_tab_helper_.reset(new BookmarkTabHelper(this));
-  constrained_window_tab_helper_.reset(new ConstrainedWindowTabHelper(this));
-  core_tab_helper_.reset(new CoreTabHelper(contents));
-  extension_tab_helper_.reset(new ExtensionTabHelper(this));
-  favicon_tab_helper_.reset(new FaviconTabHelper(contents));
-  find_tab_helper_.reset(new FindTabHelper(contents));
-  history_tab_helper_.reset(new HistoryTabHelper(contents));
-  hung_plugin_tab_helper_.reset(new HungPluginTabHelper(contents));
-  infobar_tab_helper_.reset(new InfoBarTabHelper(contents));
-  password_manager_delegate_.reset(new PasswordManagerDelegateImpl(this));
-  password_manager_.reset(
-      new PasswordManager(contents, password_manager_delegate_.get()));
-  prefs_tab_helper_.reset(new PrefsTabHelper(contents));
-  prerender_tab_helper_.reset(new prerender::PrerenderTabHelper(this));
-  restore_tab_helper_.reset(new RestoreTabHelper(contents));
-  search_engine_tab_helper_.reset(new SearchEngineTabHelper(contents));
-  snapshot_tab_helper_.reset(new SnapshotTabHelper(contents));
-  ssl_helper_.reset(new TabContentsSSLHelper(this));
-  synced_tab_delegate_.reset(new TabContentsWrapperSyncedTabDelegate(this));
-  content_settings_.reset(new TabSpecificContentSettings(contents));
-  translate_tab_helper_.reset(new TranslateTabHelper(contents));
-  web_intent_picker_controller_.reset(new WebIntentPickerController(this));
-
-#if !defined(OS_ANDROID)
-  print_view_manager_.reset(new printing::PrintViewManager(this));
-  sad_tab_helper_.reset(new SadTabHelper(contents));
-#endif
-
-  // Create the per-tab observers.
-  alternate_error_page_tab_observer_.reset(
-      new AlternateErrorPageTabObserver(contents, profile()));
-  webnavigation_observer_.reset(
-      new extensions::WebNavigationTabObserver(contents));
-  external_protocol_observer_.reset(new ExternalProtocolObserver(contents));
-  pdf_tab_observer_.reset(new PDFTabObserver(this));
-  safe_browsing_tab_observer_.reset(
-      new safe_browsing::SafeBrowsingTabObserver(this));
-
-#if defined(OS_WIN)
-  // Metro mode Chrome on Windows does not support plugins. Avoid registering
-  // the PluginObserver so we don't popup plugin-related infobars.
-  if (!base::win::GetMetroModule())
-    plugin_observer_.reset(new PluginObserver(this));
-#else
-  plugin_observer_.reset(new PluginObserver(this));
-#endif
-
-#if !defined(OS_ANDROID)
-  if (OmniboxSearchHint::IsEnabled(profile()))
-    omnibox_search_hint_.reset(new OmniboxSearchHint(this));
-  print_preview_.reset(new printing::PrintPreviewMessageHandler(contents));
-#endif
-
-  // Start the in-browser thumbnailing if the feature is enabled.
-  if (ShouldEnableInBrowserThumbnailing()) {
-    thumbnail_generator_.reset(new ThumbnailGenerator);
-    thumbnail_generator_->StartThumbnailing(web_contents_.get());
-  }
-
-  // If this is not an incognito window, setup to handle one-click login.
-  // We don't want to check that the profile is already connected at this time
-  // because the connected state may change while this tab is open.  Having a
-  // one-click signin helper attached does not cause problems if the profile
-  // happens to be already connected.
-#if defined(ENABLE_ONE_CLICK_SIGNIN)
-  if (OneClickSigninHelper::CanOffer(contents, false))
-      one_click_signin_helper_.reset(new OneClickSigninHelper(contents));
-#endif
-}
-
-TabContentsWrapper::~TabContentsWrapper() {
-  in_destructor_ = true;
-
-  // Need to reset |thumbnail_generator_| here before |web_contents_| is
-  // deleted because destructing |web_contents_| can end up causing the
-  // thumbnailer to generate a thumbnail. Since TabContentsWrapper can be
-  // destructed during shutdown, trying to generate a thumbnail by sending an
-  // IPC message to the GPU process is not safe. Sending
-  // chrome::NOTIFICATION_TAB_CONTENTS_DESTROYED can also cause the thumbnailer
-  // to generate a thumbnail, so this must be placed before sending the
-  // notification.
-  thumbnail_generator_.reset();
-
-  content::NotificationService::current()->Notify(
-      chrome::NOTIFICATION_TAB_CONTENTS_DESTROYED,
-      content::Source<TabContentsWrapper>(this),
-      content::NotificationService::NoDetails());
-
-  // Need to tear down infobars before the WebContents goes away.
-  // TODO(avi): Can we get this handled by the tab helper itself?
-  infobar_tab_helper_.reset();
-}
-
-base::PropertyAccessor<TabContentsWrapper*>*
-    TabContentsWrapper::property_accessor() {
-  return g_tab_contents_wrapper_property_accessor.Pointer();
-}
-
-TabContentsWrapper* TabContentsWrapper::Clone() {
-  WebContents* new_contents = web_contents()->Clone();
-  TabContentsWrapper* new_wrapper = new TabContentsWrapper(new_contents);
-
-  // TODO(avi): Can we generalize this so that knowledge of the functionings of
-  // the tab helpers isn't required here?
-  new_wrapper->extension_tab_helper()->CopyStateFrom(
-      *extension_tab_helper_.get());
-  return new_wrapper;
-}
-
-// static
-TabContentsWrapper* TabContentsWrapper::GetCurrentWrapperForContents(
-    WebContents* contents) {
-  TabContentsWrapper** wrapper =
-      property_accessor()->GetProperty(contents->GetPropertyBag());
-
-  return wrapper ? *wrapper : NULL;
-}
-
-// static
-const TabContentsWrapper* TabContentsWrapper::GetCurrentWrapperForContents(
-    const WebContents* contents) {
-  TabContentsWrapper* const* wrapper =
-      property_accessor()->GetProperty(contents->GetPropertyBag());
-
-  return wrapper ? *wrapper : NULL;
-}
-
-WebContents* TabContentsWrapper::web_contents() const {
-  return web_contents_.get();
-}
-
-Profile* TabContentsWrapper::profile() const {
-  return Profile::FromBrowserContext(web_contents()->GetBrowserContext());
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// WebContentsObserver overrides
-
-void TabContentsWrapper::WebContentsDestroyed(WebContents* tab) {
-  // Destruction of the WebContents should only be done by us from our
-  // destructor. Otherwise it's very likely we (or one of the helpers we own)
-  // will attempt to access the WebContents and we'll crash.
-  DCHECK(in_destructor_);
-}