gecko-dev/accessible/windows/msaa/DocAccessibleWrap.h
James Teh c33d1b0837 Bug 1694865 part 25: Remove inheritance of Msaa*Accessible/ia2*Accessible into *AccessibleWrap! r=morgan
1. ia2AccessibleApplication is instantiated for ApplicationAccessible, so it now inherits from MsaaAccessible.
2. ia2AccessibleHypertext is instantiated for HyperTextAccessible, so it now inherits from MsaaAccessible.
3. ia2AccessibleImage is instantiated for ImageAccessible, so it inherits from MsaaAccessible.
4. ia2AccessibleTable is instantiated for TableAccessible, so it inherits from ia2AccessibleHypertext (since most TableAccessible implementations implement HyperTextAccessible).
5. ia2AccessibleTableCell is instantiated for TableCellAccessible, so it inherits from ia2AccessibleHypertext (since most TableCellAccessible implementations implement HyperTextAccessible).
6. All of the above override QueryInterface as appropriate, replacing the QueryInterface implementations from all *AccessibleWrap classes.
7. The ARIAGridAccessibleWrap, HTMLTableAccessibleWrap, ImageAccessibleWrap, XULListboxAccessibleWrap and XULTreeGridAccessibleWrap classes previously served only to host ia2AccessibleImage, ia2AccessibleTable, etc. Since these ia2 classes are now instantiated via MsaaAccessible, these Wrap classes have been removed and replaced with aliases.
8. The QueryInterface handling for ISimpleDOMText has been moved into MsaaAccessible. Since this was the only purpose of TextLeafAccessibleWrap, this too has been removed and replaced with an alias.
9. AccessibleWrap now holds a strong reference to MsaaAccessible and MsaaAccessible holds a weak reference to AccessibleWrap.
10. An MsaaAccessible (or derived class) is instantiated by MsaaAccessible::Create.
11. MsaaAccessible now implements its own COM reference counting using DECL_IUNKNOWN, since it does not need nsISupports (XPCOM).

Differential Revision: https://phabricator.services.mozilla.com/D112956
2021-05-03 11:31:04 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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_a11y_DocAccessibleWrap_h__
#define mozilla_a11y_DocAccessibleWrap_h__
#include "DocAccessible.h"
namespace mozilla {
class PresShell;
namespace a11y {
class DocAccessibleWrap : public DocAccessible {
public:
DocAccessibleWrap(dom::Document* aDocument, PresShell* aPresShell);
virtual ~DocAccessibleWrap();
// LocalAccessible
virtual void Shutdown();
// DocAccessible
virtual void* GetNativeWindow() const;
protected:
void* mHWND;
// DocAccessible
virtual void DoInitialUpdate();
};
} // namespace a11y
} // namespace mozilla
#endif