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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/startup/session_crashed_infobar_delegate.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/infobars/infobar.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/sessions/session_restore.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_finder.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/dom_storage_context.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/storage_partition.h"
#include "grit/chromium_strings.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
// static
void SessionCrashedInfoBarDelegate::Create(Browser* browser) {
// Assume that if the user is launching incognito they were previously running
// incognito so that we have nothing to restore from.
// Also, in ChromeBot tests, there might be a race. This code appears to be
// called during shutdown when there is no active WebContents.
Profile* profile = browser->profile();
content::WebContents* web_contents =
browser->tab_strip_model()->GetActiveWebContents();
if (profile->IsOffTheRecord() || !web_contents)
return;
InfoBarService* infobar_service =
InfoBarService::FromWebContents(web_contents);
infobar_service->AddInfoBar(scoped_ptr<InfoBarDelegate>(
new SessionCrashedInfoBarDelegate(infobar_service, profile)));
}
SessionCrashedInfoBarDelegate::SessionCrashedInfoBarDelegate(
InfoBarService* infobar_service,
Profile* profile)
: ConfirmInfoBarDelegate(infobar_service),
accepted_(false),
removed_notification_received_(false),
profile_(profile) {
// TODO(pkasting,marja): Once InfoBars own they delegates, this is not needed
// any more. Then we can rely on delegates getting destroyed, and we can
// initiate the session storage scavenging only in the destructor. (Currently,
// info bars are leaked if they get closed while they're in background tabs.)
registrar_.Add(this, chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED,
content::NotificationService::AllSources());
}
SessionCrashedInfoBarDelegate::~SessionCrashedInfoBarDelegate() {
// If the info bar wasn't accepted, it was either dismissed or expired. In
// that case, session restore won't happen.
if (!accepted_ && !removed_notification_received_) {
content::BrowserContext::GetDefaultStoragePartition(profile_)->
GetDOMStorageContext()->StartScavengingUnusedSessionStorage();
}
}
int SessionCrashedInfoBarDelegate::GetIconID() const {
return IDR_INFOBAR_RESTORE_SESSION;
}
string16 SessionCrashedInfoBarDelegate::GetMessageText() const {
return l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_VIEW_MESSAGE);
}
int SessionCrashedInfoBarDelegate::GetButtons() const {
return BUTTON_OK;
}
string16 SessionCrashedInfoBarDelegate::GetButtonLabel(
InfoBarButton button) const {
DCHECK_EQ(BUTTON_OK, button);
return l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_VIEW_RESTORE_BUTTON);
}
bool SessionCrashedInfoBarDelegate::Accept() {
uint32 behavior = 0;
Browser* browser =
chrome::FindBrowserWithWebContents(owner()->web_contents());
if (browser->tab_strip_model()->count() == 1) {
const content::WebContents* active_tab =
browser->tab_strip_model()->GetWebContentsAt(0);
if (active_tab->GetURL() == GURL(chrome::kChromeUINewTabURL) ||
chrome::IsInstantNTP(active_tab)) {
// There is only one tab and its the new tab page, make session restore
// clobber it.
behavior = SessionRestore::CLOBBER_CURRENT_TAB;
}
}
SessionRestore::RestoreSession(browser->profile(), browser,
browser->host_desktop_type(), behavior,
std::vector<GURL>());
accepted_ = true;
return true;
}
void SessionCrashedInfoBarDelegate::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(type == chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED);
if (content::Details<InfoBar::RemovedDetails>(details)->first != this)
return;
if (!accepted_) {
content::BrowserContext::GetDefaultStoragePartition(profile_)->
GetDOMStorageContext()->StartScavengingUnusedSessionStorage();
removed_notification_received_ = true;
}
}
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