1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #if defined(MOZILLA_INTERNAL_API)
8 #error This code is NOT for internal Gecko use!
9 #endif  // defined(MOZILLA_INTERNAL_API)
10 
11 #ifndef mozilla_a11y_HandlerRelation_h
12 #define mozilla_a11y_HandlerRelation_h
13 
14 #include "AccessibleHandler.h"
15 #include "IUnknownImpl.h"
16 #include "mozilla/RefPtr.h"
17 
18 namespace mozilla {
19 namespace a11y {
20 
21 class HandlerRelation final : public IAccessibleRelation {
22  public:
23   explicit HandlerRelation(AccessibleHandler* aHandler, IARelationData& aData);
24 
25   DECL_IUNKNOWN
26 
27   // IAccessibleRelation
28   STDMETHODIMP get_relationType(BSTR* aType) override;
29   STDMETHODIMP get_localizedRelationType(BSTR* aLocalizedType) override;
30   STDMETHODIMP get_nTargets(long* aNTargets) override;
31   STDMETHODIMP get_target(long aIndex, IUnknown** aTarget) override;
32   STDMETHODIMP get_targets(long aMaxTargets, IUnknown** aTargets,
33                            long* aNTargets) override;
34 
35  private:
36   virtual ~HandlerRelation();
37   HRESULT GetTargets();
38   RefPtr<AccessibleHandler> mHandler;
39   IARelationData mData;
40   IUnknown** mTargets;
41 };
42 
43 }  // namespace a11y
44 }  // namespace mozilla
45 
46 #endif  // mozilla_a11y_HandlerRelation_h
47