supervised_user_interstitial.h revision f8ee788a64d60abd8f2d742a5fdedde054ecd910 
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#ifndef CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
6#define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
7
8#include <string>
9
10#include "base/callback.h"
11#include "base/compiler_specific.h"
12#include "base/prefs/pref_change_registrar.h"
13#include "content/public/browser/interstitial_page_delegate.h"
14#include "url/gurl.h"
15
16namespace content {
17class InterstitialPage;
18class WebContents;
19}
20
21// Delegate for an interstitial page when a page is blocked for a supervised
22// user because it is on a blacklist (in "allow everything" mode) or not on any
23// whitelist (in "allow only specified sites" mode).
24class SupervisedUserInterstitial : public content::InterstitialPageDelegate {
25 public:
26  static void Show(content::WebContents* web_contents,
27                   const GURL& url,
28                   const base::Callback<void(bool)>& callback);
29
30 private:
31  SupervisedUserInterstitial(content::WebContents* web_contents,
32                             const GURL& url,
33                             const base::Callback<void(bool)>& callback);
34  virtual ~SupervisedUserInterstitial();
35
36  bool Init();
37
38  // InterstitialPageDelegate implementation.
39  virtual std::string GetHTMLContents() OVERRIDE;
40  virtual void CommandReceived(const std::string& command) OVERRIDE;
41  virtual void OnProceed() OVERRIDE;
42  virtual void OnDontProceed() OVERRIDE;
43
44  // Returns whether the blocked URL is now allowed. Called initially before the
45  // interstitial is shown (to catch race conditions), or when the URL filtering
46  // prefs change.
47  bool ShouldProceed();
48
49  void OnFilteringPrefsChanged();
50  void DispatchContinueRequest(bool continue_request);
51
52  // Owns the interstitial, which owns us.
53  content::WebContents* web_contents_;
54
55  content::InterstitialPage* interstitial_page_;  // Owns us.
56
57  PrefChangeRegistrar pref_change_registrar_;
58
59  // The UI language. Used for formatting the URL for display.
60  std::string languages_;
61  GURL url_;
62
63  base::Callback<void(bool)> callback_;
64
65  DISALLOW_COPY_AND_ASSIGN(SupervisedUserInterstitial);
66};
67
68#endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
69