chrome/browser/safe_browsing/safe_browsing_tab_observer.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_SAFE_BROWSING_SAFE_BROWSING_TAB_OBSERVER_H_
   6 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_TAB_OBSERVER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/prefs/pref_change_registrar.h"
  10 #include "content/public/browser/web_contents_user_data.h"
  11
  12 namespace content {
  13 class WebContents;
  14 }
  15
  16 namespace safe_browsing {
  17
  18 class ClientSideDetectionHost;
  19
  20 // Per-tab class to handle safe-browsing functionality.
  21 class SafeBrowsingTabObserver
  22     : public content::WebContentsUserData<SafeBrowsingTabObserver> {
  23  public:
  24   virtual ~SafeBrowsingTabObserver();
  25
  26   ClientSideDetectionHost* detection_host() {
  27     return safebrowsing_detection_host_.get();
  28   }
  29
  30   const ClientSideDetectionHost* detection_host() const {
  31     return safebrowsing_detection_host_.get();
  32   }
  33
  34  private:
  35   explicit SafeBrowsingTabObserver(content::WebContents* web_contents);
  36   friend class content::WebContentsUserData<SafeBrowsingTabObserver>;
  37
  38   // Internal helpers ----------------------------------------------------------
  39
  40   // Create or destroy SafebrowsingDetectionHost as needed if the user's
  41   // safe browsing preference has changed.
  42   void UpdateSafebrowsingDetectionHost();
  43
  44   // Handles IPCs.
  45   scoped_ptr<ClientSideDetectionHost> safebrowsing_detection_host_;
  46
  47   // Our owning WebContents.
  48   content::WebContents* web_contents_;
  49
  50   PrefChangeRegistrar pref_change_registrar_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingTabObserver);
  53 };
  54
  55 }  // namespace safe_browsing
  56
  57 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_TAB_OBSERVER_H_