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_DocAccessibleWrap_h__
8 #define mozilla_a11y_DocAccessibleWrap_h__
9 
10 #include "DocAccessible.h"
11 
12 namespace mozilla {
13 
14 class PresShell;
15 
16 namespace a11y {
17 
18 class DocAccessibleWrap : public DocAccessible {
19  public:
20   DocAccessibleWrap(dom::Document* aDocument, PresShell* aPresShell);
21   virtual ~DocAccessibleWrap();
22 
23   DECL_IUNKNOWN_INHERITED
24 
25   // IAccessible
26 
27   // Override get_accParent for e10s
28   virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accParent(
29       /* [retval][out] */ IDispatch __RPC_FAR* __RPC_FAR* ppdispParent)
30       override;
31 
32   // Override get_accValue to provide URL when no other value is available
33   virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accValue(
34       /* [optional][in] */ VARIANT varChild,
35       /* [retval][out] */ BSTR __RPC_FAR* pszValue) override;
36 
37   // Accessible
38   virtual void Shutdown();
39 
40   // DocAccessible
41   virtual void* GetNativeWindow() const;
42 
43   /**
44    * Manage the mapping from id to Accessible.
45    */
AddID(uint32_t aID,AccessibleWrap * aAcc)46   void AddID(uint32_t aID, AccessibleWrap* aAcc) {
47     mIDToAccessibleMap.Put(aID, aAcc);
48   }
RemoveID(uint32_t aID)49   void RemoveID(uint32_t aID) { mIDToAccessibleMap.Remove(aID); }
GetAccessibleByID(uint32_t aID)50   AccessibleWrap* GetAccessibleByID(uint32_t aID) const {
51     return mIDToAccessibleMap.Get(aID);
52   }
53 
54  protected:
55   // DocAccessible
56   virtual void DoInitialUpdate();
57 
58  protected:
59   void* mHWND;
60 
61   /*
62    * This provides a mapping from 32 bit id to accessible objects.
63    */
64   nsDataHashtable<nsUint32HashKey, AccessibleWrap*> mIDToAccessibleMap;
65 };
66 
67 }  // namespace a11y
68 }  // namespace mozilla
69 
70 #endif
71