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// 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/browser_tabrestore.h"
#include "base/memory/scoped_vector.h"
#include "chrome/browser/extensions/tab_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sessions/session_service.h"
#include "chrome/browser/sessions/session_service_factory.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/web_contents_sizer.h"
#include "components/sessions/content/content_serialized_navigation_builder.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/session_storage_namespace.h"
#include "content/public/browser/web_contents.h"
using content::WebContents;
using content::NavigationController;
using content::NavigationEntry;
using sessions::ContentSerializedNavigationBuilder;
using sessions::SerializedNavigationEntry;
namespace chrome {
namespace {
NavigationController::RestoreType GetRestoreType(Browser* browser,
bool from_last_session) {
if (!from_last_session)
return NavigationController::RESTORE_CURRENT_SESSION;
return browser->profile()->GetLastSessionExitType() == Profile::EXIT_CRASHED ?
NavigationController::RESTORE_LAST_SESSION_CRASHED :
NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY;
}
WebContents* CreateRestoredTab(
Browser* browser,
const std::vector<SerializedNavigationEntry>& navigations,
int selected_navigation,
const std::string& extension_app_id,
bool from_last_session,
content::SessionStorageNamespace* session_storage_namespace,
const std::string& user_agent_override,
bool initially_hidden) {
GURL restore_url = navigations.at(selected_navigation).virtual_url();
// TODO(ajwong): Remove the temporary session_storage_namespace_map when
// we teach session restore to understand that one tab can have multiple
// SessionStorageNamespace objects. Also remove the
// session_storage_namespace.h include since we only need that to assign
// into the map.
content::SessionStorageNamespaceMap session_storage_namespace_map;
session_storage_namespace_map[std::string()] = session_storage_namespace;
WebContents::CreateParams create_params(
browser->profile(),
tab_util::GetSiteInstanceForNewTab(browser->profile(), restore_url));
create_params.initially_hidden = initially_hidden;
WebContents* base_web_contents =
browser->tab_strip_model()->GetActiveWebContents();
if (base_web_contents) {
create_params.initial_size =
base_web_contents->GetContainerBounds().size();
}
WebContents* web_contents = content::WebContents::CreateWithSessionStorage(
create_params,
session_storage_namespace_map);
extensions::TabHelper::CreateForWebContents(web_contents);
extensions::TabHelper::FromWebContents(web_contents)->
SetExtensionAppById(extension_app_id);
ScopedVector<NavigationEntry> scoped_entries =
ContentSerializedNavigationBuilder::ToNavigationEntries(
navigations, browser->profile());
// NavigationController::Restore() expects to take ownership of the entries.
std::vector<NavigationEntry*> entries;
scoped_entries.release(&entries);
web_contents->SetUserAgentOverride(user_agent_override);
web_contents->GetController().Restore(
selected_navigation, GetRestoreType(browser, from_last_session),
&entries);
DCHECK_EQ(0u, entries.size());
return web_contents;
}
} // namespace
content::WebContents* AddRestoredTab(
Browser* browser,
const std::vector<SerializedNavigationEntry>& navigations,
int tab_index,
int selected_navigation,
const std::string& extension_app_id,
bool select,
bool pin,
bool from_last_session,
content::SessionStorageNamespace* session_storage_namespace,
const std::string& user_agent_override) {
WebContents* web_contents = CreateRestoredTab(browser,
navigations,
selected_navigation,
extension_app_id,
from_last_session,
session_storage_namespace,
user_agent_override,
!select);
int add_types = select ? TabStripModel::ADD_ACTIVE
: TabStripModel::ADD_NONE;
if (pin) {
int first_mini_tab_idx =
browser->tab_strip_model()->IndexOfFirstNonMiniTab();
tab_index = std::min(tab_index, first_mini_tab_idx);
add_types |= TabStripModel::ADD_PINNED;
}
browser->tab_strip_model()->InsertWebContentsAt(tab_index, web_contents,
add_types);
if (select) {
browser->window()->Activate();
} else {
// We set the size of the view here, before Blink does its initial layout.
// If we don't, the initial layout of background tabs will be performed
// with a view width of 0, which may cause script outputs and anchor link
// location calculations to be incorrect even after a new layout with
// proper view dimensions. TabStripModel::AddWebContents() contains similar
// logic.
gfx::Size size = browser->window()->GetBounds().size();
// Fallback to the restore bounds if it's empty as the window is not shown
// yet and the bounds may not be available on all platforms.
if (size.IsEmpty())
size = browser->window()->GetRestoredBounds().size();
ResizeWebContents(web_contents, size);
web_contents->WasHidden();
}
SessionService* session_service =
SessionServiceFactory::GetForProfileIfExisting(browser->profile());
if (session_service)
session_service->TabRestored(web_contents, pin);
return web_contents;
}
content::WebContents* ReplaceRestoredTab(
Browser* browser,
const std::vector<SerializedNavigationEntry>& navigations,
int selected_navigation,
bool from_last_session,
const std::string& extension_app_id,
content::SessionStorageNamespace* session_storage_namespace,
const std::string& user_agent_override) {
WebContents* web_contents = CreateRestoredTab(browser,
navigations,
selected_navigation,
extension_app_id,
from_last_session,
session_storage_namespace,
user_agent_override,
false);
// ReplaceWebContentsAt won't animate in the restoration, so manually do the
// equivalent of ReplaceWebContentsAt.
TabStripModel* tab_strip = browser->tab_strip_model();
int insertion_index = tab_strip->active_index();
tab_strip->InsertWebContentsAt(insertion_index + 1,
web_contents,
TabStripModel::ADD_ACTIVE |
TabStripModel::ADD_INHERIT_GROUP);
tab_strip->CloseWebContentsAt(insertion_index, TabStripModel::CLOSE_NONE);
return web_contents;
}
} // namespace chrome
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