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#ifndef CHROME_BROWSER_UI_SAD_TAB_HELPER_H_
6#define CHROME_BROWSER_UI_SAD_TAB_HELPER_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "base/memory/scoped_ptr.h"
11#include "content/public/browser/web_contents_observer.h"
12#include "content/public/browser/web_contents_user_data.h"
13
14namespace chrome {
15class SadTab;
16}
17
18// Per-tab class to manage sad tab views.
19class SadTabHelper : public content::WebContentsObserver,
20                     public content::WebContentsUserData<SadTabHelper> {
21 public:
22  virtual ~SadTabHelper();
23
24  chrome::SadTab* sad_tab() { return sad_tab_.get(); }
25
26 private:
27  friend class content::WebContentsUserData<SadTabHelper>;
28
29  explicit SadTabHelper(content::WebContents* web_contents);
30
31  void InstallSadTab(base::TerminationStatus status);
32
33  // Overridden from content::WebContentsObserver:
34  virtual void RenderViewReady() OVERRIDE;
35  virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE;
36
37  scoped_ptr<chrome::SadTab> sad_tab_;
38
39  DISALLOW_COPY_AND_ASSIGN(SadTabHelper);
40};
41
42#endif  // CHROME_BROWSER_UI_SAD_TAB_HELPER_H_
43