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  private:
  31   explicit SafeBrowsingTabObserver(content::WebContents* web_contents);
  32   friend class content::WebContentsUserData<SafeBrowsingTabObserver>;
  33
  34   // Internal helpers ----------------------------------------------------------
  35
  36   // Create or destroy SafebrowsingDetectionHost as needed if the user's
  37   // safe browsing preference has changed.
  38   void UpdateSafebrowsingDetectionHost();
  39
  40   // Handles IPCs.
  41   scoped_ptr<ClientSideDetectionHost> safebrowsing_detection_host_;
  42
  43   // Our owning WebContents.
  44   content::WebContents* web_contents_;
  45
  46   PrefChangeRegistrar pref_change_registrar_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingTabObserver);
  49 };
  50
  51 }  // namespace safe_browsing
  52
  53 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_TAB_OBSERVER_H_