chrome/browser/google/google_url_tracker_map_entry.cc


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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/google/google_url_tracker_map_entry.h"

#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/google/google_url_tracker.h"
#include "components/infobars/core/infobar.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"

GoogleURLTrackerMapEntry::GoogleURLTrackerMapEntry(
    GoogleURLTracker* google_url_tracker,
    infobars::InfoBarManager* infobar_manager,
    scoped_ptr<GoogleURLTrackerNavigationHelper> navigation_helper)
    : google_url_tracker_(google_url_tracker),
      infobar_manager_(infobar_manager),
      infobar_delegate_(NULL),
      navigation_helper_(navigation_helper.Pass()) {
}

GoogleURLTrackerMapEntry::~GoogleURLTrackerMapEntry() {
}

void GoogleURLTrackerMapEntry::Observe(
    int type,
    const content::NotificationSource& source,
    const content::NotificationDetails& details) {
  DCHECK(infobar_delegate_);
  DCHECK_EQ(chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED, type);
  DCHECK_EQ(infobar_manager_,
            content::Source<infobars::InfoBarManager>(source).ptr());
  if (content::Details<infobars::InfoBar::RemovedDetails>(
          details)->first->delegate() == infobar_delegate_) {
    google_url_tracker_->DeleteMapEntryForManager(infobar_manager_);
    // WARNING: At this point |this| has been deleted!
  }
}

void GoogleURLTrackerMapEntry::SetInfoBarDelegate(
    GoogleURLTrackerInfoBarDelegate* infobar_delegate) {
  DCHECK(!infobar_delegate_);

  // Transfer ownership of |navigation_helper_| to the infobar delegate as the
  // infobar delegate has need of it after this object has been destroyed in
  // the case where the user accepts the new Google URL.
  infobar_delegate->set_navigation_helper(navigation_helper_.Pass());
  infobar_delegate_ = infobar_delegate;
  registrar_.Add(this,
                 chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED,
                 content::Source<infobars::InfoBarManager>(infobar_manager_));
}

void GoogleURLTrackerMapEntry::Close(bool redo_search) {
  if (infobar_delegate_) {
    infobar_delegate_->Close(redo_search);
  } else {
    // WARNING: |infobar_manager_| may point to a deleted object.  Do not
    // dereference it!  See GoogleURLTracker::OnTabClosed().
    google_url_tracker_->DeleteMapEntryForManager(infobar_manager_);
  }
  // WARNING: At this point |this| has been deleted!
}