chrome/browser/task_manager/web_contents_information.cc

   1 // Copyright 2014 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/task_manager/web_contents_information.h"
   6 #include "content/public/browser/notification_service.h"
   7 #include "content/public/browser/notification_types.h"
   8
   9 namespace task_manager {
  10
  11 WebContentsInformation::WebContentsInformation() {}
  12
  13 WebContentsInformation::~WebContentsInformation() {}
  14
  15 NotificationObservingWebContentsInformation::
  16     NotificationObservingWebContentsInformation() {}
  17
  18 NotificationObservingWebContentsInformation::
  19     ~NotificationObservingWebContentsInformation() {}
  20
  21 void NotificationObservingWebContentsInformation::StartObservingCreation(
  22     const NewWebContentsCallback& callback) {
  23   observer_callback_ = callback;
  24   registrar_.Add(this,
  25                  content::NOTIFICATION_WEB_CONTENTS_CONNECTED,
  26                  content::NotificationService::AllBrowserContextsAndSources());
  27 }
  28
  29 void NotificationObservingWebContentsInformation::StopObservingCreation() {
  30   registrar_.Remove(
  31       this,
  32       content::NOTIFICATION_WEB_CONTENTS_CONNECTED,
  33       content::NotificationService::AllBrowserContextsAndSources());
  34   observer_callback_.Reset();
  35 }
  36
  37 void NotificationObservingWebContentsInformation::Observe(
  38     int type,
  39     const content::NotificationSource& source,
  40     const content::NotificationDetails& details) {
  41   content::WebContents* web_contents =
  42       content::Source<content::WebContents>(source).ptr();
  43
  44   switch (type) {
  45     case content::NOTIFICATION_WEB_CONTENTS_CONNECTED:
  46       if (CheckOwnership(web_contents))
  47         observer_callback_.Run(web_contents);
  48       break;
  49   }
  50 }
  51
  52 }  // namespace task_manager