chrome/browser/ui/startup/session_crashed_infobar_delegate.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/startup/session_crashed_infobar_delegate.h"
   6
   7 #include "chrome/browser/infobars/infobar.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/search/search.h"
  10 #include "chrome/browser/sessions/session_restore.h"
  11 #include "chrome/browser/ui/browser.h"
  12 #include "chrome/browser/ui/browser_finder.h"
  13 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  14 #include "chrome/common/url_constants.h"
  15 #include "content/public/browser/dom_storage_context.h"
  16 #include "content/public/browser/storage_partition.h"
  17 #include "grit/chromium_strings.h"
  18 #include "grit/generated_resources.h"
  19 #include "grit/theme_resources.h"
  20 #include "ui/base/l10n/l10n_util.h"
  21
  22
  23 // static
  24 void SessionCrashedInfoBarDelegate::Create(Browser* browser) {
  25   // Assume that if the user is launching incognito they were previously running
  26   // incognito so that we have nothing to restore from.
  27   // Also, in ChromeBot tests, there might be a race.  This code appears to be
  28   // called during shutdown when there is no active WebContents.
  29   Profile* profile = browser->profile();
  30   content::WebContents* web_contents =
  31       browser->tab_strip_model()->GetActiveWebContents();
  32   if (profile->IsOffTheRecord() || !web_contents)
  33     return;
  34
  35   InfoBarService::FromWebContents(web_contents)->AddInfoBar(
  36       ConfirmInfoBarDelegate::CreateInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
  37           new SessionCrashedInfoBarDelegate(profile))));
  38 }
  39
  40 SessionCrashedInfoBarDelegate::SessionCrashedInfoBarDelegate(Profile* profile)
  41     : ConfirmInfoBarDelegate(),
  42       accepted_(false),
  43       profile_(profile) {
  44 }
  45
  46 SessionCrashedInfoBarDelegate::~SessionCrashedInfoBarDelegate() {
  47   // If the info bar wasn't accepted, it was either dismissed or expired. In
  48   // that case, session restore won't happen.
  49   if (!accepted_) {
  50     content::BrowserContext::GetDefaultStoragePartition(profile_)->
  51         GetDOMStorageContext()->StartScavengingUnusedSessionStorage();
  52   }
  53 }
  54
  55 int SessionCrashedInfoBarDelegate::GetIconID() const {
  56   return IDR_INFOBAR_RESTORE_SESSION;
  57 }
  58
  59 base::string16 SessionCrashedInfoBarDelegate::GetMessageText() const {
  60   return l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_VIEW_MESSAGE);
  61 }
  62
  63 int SessionCrashedInfoBarDelegate::GetButtons() const {
  64   return BUTTON_OK;
  65 }
  66
  67 base::string16 SessionCrashedInfoBarDelegate::GetButtonLabel(
  68     InfoBarButton button) const {
  69   DCHECK_EQ(BUTTON_OK, button);
  70   return l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_VIEW_RESTORE_BUTTON);
  71 }
  72
  73 bool SessionCrashedInfoBarDelegate::Accept() {
  74   uint32 behavior = 0;
  75   Browser* browser = chrome::FindBrowserWithWebContents(web_contents());
  76   if (browser->tab_strip_model()->count() == 1) {
  77     const content::WebContents* active_tab =
  78         browser->tab_strip_model()->GetWebContentsAt(0);
  79     if (active_tab->GetURL() == GURL(chrome::kChromeUINewTabURL) ||
  80         chrome::IsInstantNTP(active_tab)) {
  81       // There is only one tab and its the new tab page, make session restore
  82       // clobber it.
  83       behavior = SessionRestore::CLOBBER_CURRENT_TAB;
  84     }
  85   }
  86   SessionRestore::RestoreSession(browser->profile(), browser,
  87                                  browser->host_desktop_type(), behavior,
  88                                  std::vector<GURL>());
  89   accepted_ = true;
  90   return true;
  91 }