chrome/browser/media/protected_media_identifier_permission_context.h

   1 // Copyright 2013 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_MEDIA_PROTECTED_MEDIA_IDENTIFIER_PERMISSION_CONTEXT_H_
   6 #define CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_PERMISSION_CONTEXT_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "chrome/browser/content_settings/permission_queue_controller.h"
  13
  14 class PermissionRequestID;
  15 class Profile;
  16
  17 namespace content {
  18 class RenderViewHost;
  19 }
  20
  21 // Manages protected media identifier permissions flow, and delegates UI
  22 // handling via PermissionQueueController.
  23 class ProtectedMediaIdentifierPermissionContext
  24     : public base::RefCountedThreadSafe<
  25         ProtectedMediaIdentifierPermissionContext> {
  26  public:
  27   explicit ProtectedMediaIdentifierPermissionContext(Profile* profile);
  28
  29   void RequestProtectedMediaIdentifierPermission(
  30       int render_process_id,
  31       int render_view_id,
  32       int bridge_id,
  33       int group_id,
  34       const GURL& requesting_frame,
  35       const base::Callback<void(bool)>& callback);
  36   void CancelProtectedMediaIdentifierPermissionRequests(
  37       int group_id);
  38
  39   // Called on the UI thread when the profile is about to be destroyed.
  40   void ShutdownOnUIThread();
  41
  42  private:
  43   friend class base::RefCountedThreadSafe<
  44       ProtectedMediaIdentifierPermissionContext>;
  45   ~ProtectedMediaIdentifierPermissionContext();
  46
  47   Profile* profile() const { return profile_; }
  48
  49   // Return an instance of the infobar queue controller, creating it
  50   // if necessary.
  51   PermissionQueueController* QueueController();
  52
  53   // Notifies whether or not the corresponding bridge is allowed to use
  54   // protected media identifier via
  55   // SetProtectedMediaIdentifierPermissionResponse(). Called on the UI thread.
  56   void NotifyPermissionSet(const PermissionRequestID& id,
  57                            const GURL& requesting_frame,
  58                            const base::Callback<void(bool)>& callback,
  59                            bool allowed);
  60
  61   // Decide whether the protected media identifier permission should be granted.
  62   // Calls PermissionDecided if permission can be decided non-interactively,
  63   // or NotifyPermissionSet if permission decided by presenting an
  64   // infobar to the user. Called on the UI thread.
  65   void DecidePermission(const PermissionRequestID& id,
  66                         const GURL& requesting_frame,
  67                         const GURL& embedder,
  68                         content::RenderViewHost* rvh,
  69                         const base::Callback<void(bool)>& callback);
  70
  71   // Called when permission is granted without interactively asking
  72   // the user. Can be overridden to introduce additional UI flow.
  73   // Should ultimately ensure that NotifyPermissionSet is called.
  74   // Called on the UI thread.
  75   void PermissionDecided(const PermissionRequestID& id,
  76                          const GURL& requesting_frame,
  77                          const GURL& embedder,
  78                          const base::Callback<void(bool)>& callback,
  79                          bool allowed);
  80
  81   // Create an PermissionQueueController. overridden in derived classes to
  82   // provide additional UI flow.  Called on the UI thread.
  83   PermissionQueueController* CreateQueueController();
  84
  85   // Removes pending InfoBar requests that match |group_id|.
  86   void CancelPendingInfobarRequests(int group_id);
  87
  88   // These must only be accessed from the UI thread.
  89   Profile* const profile_;
  90   bool shutting_down_;
  91   scoped_ptr<PermissionQueueController> permission_queue_controller_;
  92
  93   DISALLOW_COPY_AND_ASSIGN(ProtectedMediaIdentifierPermissionContext);
  94 };
  95
  96 #endif  // CHROME_BROWSER_MEDIA_PROTECTED_MEDIA_IDENTIFIER_PERMISSION_CONTEXT_H_