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   web_contents->SetUserAgentOverride(user_agent_override);
  79   web_contents->GetController().Restore(
  80       selected_navigation, GetRestoreType(browser, from_last_session),
  81       &scoped_entries);
  82   DCHECK_EQ(0u, scoped_entries.size());
  83
  84   return web_contents;
  85 }
  86
  87 }  // namespace
  88
  89 content::WebContents* AddRestoredTab(
  90     Browser* browser,
  91     const std::vector<SerializedNavigationEntry>& navigations,
  92     int tab_index,
  93     int selected_navigation,
  94     const std::string& extension_app_id,
  95     bool select,
  96     bool pin,
  97     bool from_last_session,
  98     content::SessionStorageNamespace* session_storage_namespace,
  99     const std::string& user_agent_override) {
 100   WebContents* web_contents = CreateRestoredTab(browser,
 101                                                 navigations,
 102                                                 selected_navigation,
 103                                                 extension_app_id,
 104                                                 from_last_session,
 105                                                 session_storage_namespace,
 106                                                 user_agent_override,
 107                                                 !select);
 108
 109   int add_types = select ? TabStripModel::ADD_ACTIVE
 110                          : TabStripModel::ADD_NONE;
 111   if (pin) {
 112     tab_index = std::min(
 113         tab_index, browser->tab_strip_model()->IndexOfFirstNonPinnedTab());
 114     add_types |= TabStripModel::ADD_PINNED;
 115   }
 116   browser->tab_strip_model()->InsertWebContentsAt(tab_index, web_contents,
 117                                                   add_types);
 118   if (select) {
 119     browser->window()->Activate();
 120   } else {
 121     // We set the size of the view here, before Blink does its initial layout.
 122     // If we don't, the initial layout of background tabs will be performed
 123     // with a view width of 0, which may cause script outputs and anchor link
 124     // location calculations to be incorrect even after a new layout with
 125     // proper view dimensions. TabStripModel::AddWebContents() contains similar
 126     // logic.
 127     gfx::Size size = browser->window()->GetBounds().size();
 128     // Fallback to the restore bounds if it's empty as the window is not shown
 129     // yet and the bounds may not be available on all platforms.
 130     if (size.IsEmpty())
 131       size = browser->window()->GetRestoredBounds().size();
 132     ResizeWebContents(web_contents, size);
 133     web_contents->WasHidden();
 134   }
 135   SessionService* session_service =
 136       SessionServiceFactory::GetForProfileIfExisting(browser->profile());
 137   if (session_service)
 138     session_service->TabRestored(web_contents, pin);
 139   return web_contents;
 140 }
 141
 142 content::WebContents* ReplaceRestoredTab(
 143     Browser* browser,
 144     const std::vector<SerializedNavigationEntry>& navigations,
 145     int selected_navigation,
 146     bool from_last_session,
 147     const std::string& extension_app_id,
 148     content::SessionStorageNamespace* session_storage_namespace,
 149     const std::string& user_agent_override) {
 150   WebContents* web_contents = CreateRestoredTab(browser,
 151                                                 navigations,
 152                                                 selected_navigation,
 153                                                 extension_app_id,
 154                                                 from_last_session,
 155                                                 session_storage_namespace,
 156                                                 user_agent_override,
 157                                                 false);
 158
 159   // ReplaceWebContentsAt won't animate in the restoration, so manually do the
 160   // equivalent of ReplaceWebContentsAt.
 161   TabStripModel* tab_strip = browser->tab_strip_model();
 162   int insertion_index = tab_strip->active_index();
 163   tab_strip->InsertWebContentsAt(insertion_index + 1,
 164                                  web_contents,
 165                                  TabStripModel::ADD_ACTIVE |
 166                                  TabStripModel::ADD_INHERIT_GROUP);
 167   tab_strip->CloseWebContentsAt(insertion_index, TabStripModel::CLOSE_NONE);
 168   return web_contents;
 169 }
 170
 171 }  // namespace chrome