1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=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 #ifndef mozilla_a11y_MsaaDocAccessible_h__
8 #define mozilla_a11y_MsaaDocAccessible_h__
9 
10 #include "ia2AccessibleHypertext.h"
11 
12 namespace mozilla {
13 
14 namespace a11y {
15 class Accessible;
16 class DocAccessible;
17 class DocAccessibleParent;
18 
19 class MsaaDocAccessible : public ia2AccessibleHypertext {
20  public:
21   DocAccessible* DocAcc();
22 
23   // IUnknown
24   DECL_IUNKNOWN_INHERITED
25   IMPL_IUNKNOWN_REFCOUNTING_INHERITED(ia2AccessibleHypertext)
26 
27   // IAccessible
28 
29   // Override get_accParent for e10s
30   virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accParent(
31       /* [retval][out] */ IDispatch __RPC_FAR* __RPC_FAR* ppdispParent)
32       override;
33 
34   // Override get_accValue to provide URL when no other value is available
35   virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accValue(
36       /* [optional][in] */ VARIANT varChild,
37       /* [retval][out] */ BSTR __RPC_FAR* pszValue) override;
38 
39   /**
40    * Manage the mapping from id to Accessible.
41    */
AddID(uint32_t aID,Accessible * aAcc)42   void AddID(uint32_t aID, Accessible* aAcc) {
43     mIDToAccessibleMap.InsertOrUpdate(aID, aAcc);
44   }
RemoveID(uint32_t aID)45   void RemoveID(uint32_t aID) { mIDToAccessibleMap.Remove(aID); }
GetAccessibleByID(uint32_t aID)46   Accessible* GetAccessibleByID(uint32_t aID) const {
47     return mIDToAccessibleMap.Get(aID);
48   }
49 
50   static MsaaDocAccessible* GetFrom(DocAccessible* aDoc);
51   static MsaaDocAccessible* GetFrom(DocAccessibleParent* aDoc);
52 
53   /**
54    * Get the MsaaDocAccessible for the document which owns the given Accessible.
55    */
56   static MsaaDocAccessible* GetFromOwned(Accessible* aAcc);
57 
58  protected:
59   using ia2AccessibleHypertext::ia2AccessibleHypertext;
60 
61   /*
62    * This provides a mapping from 32 bit id to accessible objects.
63    */
64   nsTHashMap<nsUint32HashKey, Accessible*> mIDToAccessibleMap;
65 };
66 
67 }  // namespace a11y
68 }  // namespace mozilla
69 
70 #endif
71