mojo/services/view_manager/access_policy_delegate.h

   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 MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_DELEGATE_H_
   6 #define MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_DELEGATE_H_
   7
   8 #include <vector>
   9
  10 #include "base/containers/hash_tables.h"
  11 #include "mojo/services/view_manager/ids.h"
  12
  13 namespace mojo {
  14 namespace service {
  15
  16 class ServerView;
  17
  18 // Delegate used by the AccessPolicy implementations to get state.
  19 class AccessPolicyDelegate {
  20  public:
  21   // Returns the ids of the roots views for this connection. That is, this is
  22   // the set of views the connection was embedded at.
  23   virtual const base::hash_set<Id>& GetRootsForAccessPolicy() const = 0;
  24
  25   // Returns true if |view| has been exposed to the client.
  26   virtual bool IsViewKnownForAccessPolicy(const ServerView* view) const = 0;
  27
  28   // Returns true if Embed(view) has been invoked on |view|.
  29   virtual bool IsViewRootOfAnotherConnectionForAccessPolicy(
  30       const ServerView* view) const = 0;
  31
  32  protected:
  33   virtual ~AccessPolicyDelegate() {}
  34 };
  35
  36 }  // namespace service
  37 }  // namespace mojo
  38
  39 #endif  // MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_DELEGATE_H_