chrome/browser/managed_mode/managed_mode_interstitial.h

   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_MANAGED_MODE_MANAGED_MODE_INTERSTITIAL_H_
   6 #define CHROME_BROWSER_MANAGED_MODE_MANAGED_MODE_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
  16 namespace content {
  17 class InterstitialPage;
  18 class WebContents;
  19 }
  20
  21 // Delegate for an interstitial page when a page is blocked in managed mode
  22 // because it is not on any whitelist. It lets an authorized user preview the
  23 // blocked page, to decide later whether to manually allow it.
  24 class ManagedModeInterstitial : public content::InterstitialPageDelegate {
  25  public:
  26   ManagedModeInterstitial(content::WebContents* web_contents,
  27                           const GURL& url,
  28                           const base::Callback<void(bool)>& callback);
  29   virtual ~ManagedModeInterstitial();
  30
  31  private:
  32   // InterstitialPageDelegate implementation.
  33   virtual std::string GetHTMLContents() OVERRIDE;
  34   virtual void CommandReceived(const std::string& command) OVERRIDE;
  35   virtual void OnProceed() OVERRIDE;
  36   virtual void OnDontProceed() OVERRIDE;
  37
  38   // Returns whether the blocked URL is now allowed. Called initially before the
  39   // interstitial is shown (to catch race conditions), or when the URL filtering
  40   // prefs change.
  41   bool ShouldProceed();
  42
  43   void OnFilteringPrefsChanged();
  44   void DispatchContinueRequest(bool continue_request);
  45
  46   // Owns the interstitial, which owns us.
  47   content::WebContents* web_contents_;
  48
  49   content::InterstitialPage* interstitial_page_;  // Owns us.
  50
  51   PrefChangeRegistrar pref_change_registrar_;
  52
  53   // The UI language. Used for formatting the URL for display.
  54   std::string languages_;
  55   GURL url_;
  56
  57   base::Callback<void(bool)> callback_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(ManagedModeInterstitial);
  60 };
  61
  62 #endif  // CHROME_BROWSER_MANAGED_MODE_MANAGED_MODE_INTERSTITIAL_H_