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