chrome/browser/google/google_url_tracker_map_entry.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/google/google_url_tracker_map_entry.h"
   6
   7 #include "chrome/browser/chrome_notification_types.h"
   8 #include "chrome/browser/google/google_url_tracker.h"
   9 #include "chrome/browser/google/google_url_tracker_infobar_delegate.h"
  10 #include "components/infobars/core/infobar.h"
  11 #include "content/public/browser/notification_details.h"
  12 #include "content/public/browser/notification_source.h"
  13
  14
  15 GoogleURLTrackerMapEntry::GoogleURLTrackerMapEntry(
  16     GoogleURLTracker* google_url_tracker,
  17     InfoBarService* infobar_service,
  18     const content::NavigationController* navigation_controller)
  19     : google_url_tracker_(google_url_tracker),
  20       infobar_service_(infobar_service),
  21       infobar_delegate_(NULL),
  22       navigation_controller_(navigation_controller) {
  23 }
  24
  25 GoogleURLTrackerMapEntry::~GoogleURLTrackerMapEntry() {
  26 }
  27
  28 void GoogleURLTrackerMapEntry::Observe(
  29     int type,
  30     const content::NotificationSource& source,
  31     const content::NotificationDetails& details) {
  32   DCHECK(infobar_delegate_);
  33   DCHECK_EQ(chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED, type);
  34   DCHECK_EQ(infobar_service_, content::Source<InfoBarService>(source).ptr());
  35   if (content::Details<infobars::InfoBar::RemovedDetails>(
  36           details)->first->delegate() == infobar_delegate_) {
  37     google_url_tracker_->DeleteMapEntryForService(infobar_service_);
  38     // WARNING: At this point |this| has been deleted!
  39   }
  40 }
  41
  42 void GoogleURLTrackerMapEntry::SetInfoBarDelegate(
  43     GoogleURLTrackerInfoBarDelegate* infobar_delegate) {
  44   DCHECK(!infobar_delegate_);
  45   infobar_delegate_ = infobar_delegate;
  46   registrar_.Add(this, chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED,
  47                  content::Source<InfoBarService>(infobar_service_));
  48 }
  49
  50 void GoogleURLTrackerMapEntry::Close(bool redo_search) {
  51   if (infobar_delegate_) {
  52     infobar_delegate_->Close(redo_search);
  53   } else {
  54     // WARNING: |infobar_service_| may point to a deleted object.  Do not
  55     // dereference it!  See GoogleURLTracker::OnTabClosed().
  56     google_url_tracker_->DeleteMapEntryForService(infobar_service_);
  57   }
  58   // WARNING: At this point |this| has been deleted!
  59 }