summaryrefslogtreecommitdiff
path: root/dom/indexedDB/PermissionRequestBase.h
blob: 47ed6c9ca3aabc1a0dbd90494dce9084be9417d6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_indexeddb_permissionrequestbase_h__
#define mozilla_dom_indexeddb_permissionrequestbase_h__

#include "mozilla/Attributes.h"
#include "nsCOMPtr.h"
#include "nsIInterfaceRequestor.h"
#include "nsIObserver.h"
#include "nsIPermissionManager.h"
#include "nsISupportsImpl.h"
#include "nsString.h"

class nsIPrincipal;

namespace mozilla {
namespace dom {

class Element;

namespace indexedDB {

class PermissionRequestBase
  : public nsIObserver
  , public nsIInterfaceRequestor
{
  nsCOMPtr<Element> mOwnerElement;
  nsCOMPtr<nsIPrincipal> mPrincipal;

public:
  enum PermissionValue {
    kPermissionAllowed = nsIPermissionManager::ALLOW_ACTION,
    kPermissionDenied = nsIPermissionManager::DENY_ACTION,
    kPermissionPrompt = nsIPermissionManager::PROMPT_ACTION
  };

  NS_DECL_ISUPPORTS

  // This function will not actually prompt. It will never return
  // kPermissionDefault but will instead translate the permission manager value
  // into the correct value for the given type.
  static nsresult
  GetCurrentPermission(nsIPrincipal* aPrincipal,
                       PermissionValue* aCurrentValue);

  static PermissionValue
  PermissionValueForIntPermission(uint32_t aIntPermission);

  // This function will prompt if needed. It may only be called once.
  nsresult
  PromptIfNeeded(PermissionValue* aCurrentValue);

protected:
  PermissionRequestBase(Element* aOwnerElement,
                        nsIPrincipal* aPrincipal);

  // Reference counted.
  virtual
  ~PermissionRequestBase();

  virtual void
  OnPromptComplete(PermissionValue aPermissionValue) = 0;

private:
  void
  SetExplicitPermission(nsIPrincipal* aPrincipal,
                        uint32_t aIntPermission);

  NS_DECL_NSIOBSERVER
  NS_DECL_NSIINTERFACEREQUESTOR
};

} // namespace indexedDB
} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_indexeddb_permissionrequestbase_h__