chrome/browser/ui/browser_tabrestore.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/browser_tabrestore.h"
   6
   7 #include "base/memory/scoped_vector.h"
   8 #include "chrome/browser/extensions/tab_helper.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/sessions/session_service.h"
  11 #include "chrome/browser/sessions/session_service_factory.h"
  12 #include "chrome/browser/tab_contents/tab_util.h"
  13 #include "chrome/browser/ui/browser.h"
  14 #include "chrome/browser/ui/browser_window.h"
  15 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  16 #include "chrome/browser/ui/web_contents_sizer.h"
  17 #include "components/sessions/content/content_serialized_navigation_builder.h"
  18 #include "content/public/browser/navigation_controller.h"
  19 #include "content/public/browser/navigation_entry.h"
  20 #include "content/public/browser/session_storage_namespace.h"
  21 #include "content/public/browser/web_contents.h"
  22
  23 using content::WebContents;
  24 using content::NavigationController;
  25 using content::NavigationEntry;
  26 using sessions::ContentSerializedNavigationBuilder;
  27 using sessions::SerializedNavigationEntry;
  28
  29 namespace chrome {
  30
  31 namespace {
  32
  33 NavigationController::RestoreType GetRestoreType(Browser* browser,
  34                                                  bool from_last_session) {
  35   if (!from_last_session)
  36     return NavigationController::RESTORE_CURRENT_SESSION;
  37   return browser->profile()->GetLastSessionExitType() == Profile::EXIT_CRASHED ?
  38       NavigationController::RESTORE_LAST_SESSION_CRASHED :
  39       NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY;
  40 }
  41
  42 WebContents* CreateRestoredTab(
  43     Browser* browser,
  44     const std::vector<SerializedNavigationEntry>& navigations,
  45     int selected_navigation,
  46     const std::string& extension_app_id,
  47     bool from_last_session,
  48     content::SessionStorageNamespace* session_storage_namespace,
  49     const std::string& user_agent_override,
  50     bool initially_hidden) {
  51   GURL restore_url = navigations.at(selected_navigation).virtual_url();
  52   // TODO(ajwong): Remove the temporary session_storage_namespace_map when
  53   // we teach session restore to understand that one tab can have multiple
  54   // SessionStorageNamespace objects. Also remove the
  55   // session_storage_namespace.h include since we only need that to assign
  56   // into the map.
  57   content::SessionStorageNamespaceMap session_storage_namespace_map;
  58   session_storage_namespace_map[std::string()] = session_storage_namespace;
  59   WebContents::CreateParams create_params(
  60       browser->profile(),
  61       tab_util::GetSiteInstanceForNewTab(browser->profile(), restore_url));
  62   create_params.initially_hidden = initially_hidden;
  63   WebContents* base_web_contents =
  64       browser->tab_strip_model()->GetActiveWebContents();
  65   if (base_web_contents) {
  66     create_params.initial_size =
  67         base_web_contents->GetContainerBounds().size();
  68   }
  69   WebContents* web_contents = content::WebContents::CreateWithSessionStorage(
  70       create_params,
  71       session_storage_namespace_map);
  72   extensions::TabHelper::CreateForWebContents(web_contents);
  73   extensions::TabHelper::FromWebContents(web_contents)->
  74       SetExtensionAppById(extension_app_id);
  75   ScopedVector<NavigationEntry> scoped_entries =
  76       ContentSerializedNavigationBuilder::ToNavigationEntries(
  77           navigations, browser->profile());
  78   // NavigationController::Restore() expects to take ownership of the entries.
  79   std::vector<NavigationEntry*> entries;
  80   scoped_entries.release(&entries);
  81   web_contents->SetUserAgentOverride(user_agent_override);
  82   web_contents->GetController().Restore(
  83       selected_navigation, GetRestoreType(browser, from_last_session),
  84       &entries);
  85   DCHECK_EQ(0u, entries.size());
  86
  87   return web_contents;
  88 }
  89
  90 }  // namespace
  91
  92 content::WebContents* AddRestoredTab(
  93     Browser* browser,
  94     const std::vector<SerializedNavigationEntry>& navigations,
  95     int tab_index,
  96     int selected_navigation,
  97     const std::string& extension_app_id,
  98     bool select,
  99     bool pin,
 100     bool from_last_session,
 101     content::SessionStorageNamespace* session_storage_namespace,
 102     const std::string& user_agent_override) {
 103   WebContents* web_contents = CreateRestoredTab(browser,
 104                                                 navigations,
 105                                                 selected_navigation,
 106                                                 extension_app_id,
 107                                                 from_last_session,
 108                                                 session_storage_namespace,
 109                                                 user_agent_override,
 110                                                 !select);
 111
 112   int add_types = select ? TabStripModel::ADD_ACTIVE
 113                          : TabStripModel::ADD_NONE;
 114   if (pin) {
 115     int first_mini_tab_idx =
 116         browser->tab_strip_model()->IndexOfFirstNonMiniTab();
 117     tab_index = std::min(tab_index, first_mini_tab_idx);
 118     add_types |= TabStripModel::ADD_PINNED;
 119   }
 120   browser->tab_strip_model()->InsertWebContentsAt(tab_index, web_contents,
 121                                                   add_types);
 122   if (select) {
 123     browser->window()->Activate();
 124   } else {
 125     // We set the size of the view here, before Blink does its initial layout.
 126     // If we don't, the initial layout of background tabs will be performed
 127     // with a view width of 0, which may cause script outputs and anchor link
 128     // location calculations to be incorrect even after a new layout with
 129     // proper view dimensions. TabStripModel::AddWebContents() contains similar
 130     // logic.
 131     gfx::Size size = browser->window()->GetBounds().size();
 132     // Fallback to the restore bounds if it's empty as the window is not shown
 133     // yet and the bounds may not be available on all platforms.
 134     if (size.IsEmpty())
 135       size = browser->window()->GetRestoredBounds().size();
 136     ResizeWebContents(web_contents, size);
 137     web_contents->WasHidden();
 138   }
 139   SessionService* session_service =
 140       SessionServiceFactory::GetForProfileIfExisting(browser->profile());
 141   if (session_service)
 142     session_service->TabRestored(web_contents, pin);
 143   return web_contents;
 144 }
 145
 146 content::WebContents* ReplaceRestoredTab(
 147     Browser* browser,
 148     const std::vector<SerializedNavigationEntry>& navigations,
 149     int selected_navigation,
 150     bool from_last_session,
 151     const std::string& extension_app_id,
 152     content::SessionStorageNamespace* session_storage_namespace,
 153     const std::string& user_agent_override) {
 154   WebContents* web_contents = CreateRestoredTab(browser,
 155                                                 navigations,
 156                                                 selected_navigation,
 157                                                 extension_app_id,
 158                                                 from_last_session,
 159                                                 session_storage_namespace,
 160                                                 user_agent_override,
 161                                                 false);
 162
 163   // ReplaceWebContentsAt won't animate in the restoration, so manually do the
 164   // equivalent of ReplaceWebContentsAt.
 165   TabStripModel* tab_strip = browser->tab_strip_model();
 166   int insertion_index = tab_strip->active_index();
 167   tab_strip->InsertWebContentsAt(insertion_index + 1,
 168                                  web_contents,
 169                                  TabStripModel::ADD_ACTIVE |
 170                                  TabStripModel::ADD_INHERIT_GROUP);
 171   tab_strip->CloseWebContentsAt(insertion_index, TabStripModel::CLOSE_NONE);
 172   return web_contents;
 173 }
 174
 175 }  // namespace chrome