Mypal/accessible/windows/msaa/HTMLWin32ObjectAccessible.h
2019-03-11 13:26:37 +03:00

64 lines
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_HTMLWin32ObjectAccessible_h_
#define mozilla_a11y_HTMLWin32ObjectAccessible_h_
#include "BaseAccessibles.h"
struct IAccessible;
namespace mozilla {
namespace a11y {
class HTMLWin32ObjectOwnerAccessible : public AccessibleWrap
{
public:
// This will own the HTMLWin32ObjectAccessible. We create this where the
// <object> or <embed> exists in the tree, so that get_accNextSibling() etc.
// will still point to Gecko accessible sibling content. This is necessary
// because the native plugin accessible doesn't know where it exists in the
// Mozilla tree, and returns null for previous and next sibling. This would
// have the effect of cutting off all content after the plugin.
HTMLWin32ObjectOwnerAccessible(nsIContent* aContent,
DocAccessible* aDoc, void* aHwnd);
virtual ~HTMLWin32ObjectOwnerAccessible() {}
// Accessible
virtual void Shutdown();
virtual mozilla::a11y::role NativeRole();
virtual bool NativelyUnavailable() const;
protected:
void* mHwnd;
RefPtr<Accessible> mNativeAccessible;
};
/**
* This class is used only internally, we never! send out an IAccessible linked
* back to this object. This class is used to represent a plugin object when
* referenced as a child or sibling of another Accessible node. We need only
* a limited portion of the Accessible interface implemented here. The
* in depth accessible information will be returned by the actual IAccessible
* object returned by us in Accessible::NewAccessible() that gets the IAccessible
* from the windows system from the window handle.
*/
class HTMLWin32ObjectAccessible : public DummyAccessible
{
public:
HTMLWin32ObjectAccessible(void* aHwnd, DocAccessible* aDoc);
virtual ~HTMLWin32ObjectAccessible() {}
virtual void GetNativeInterface(void** aNativeAccessible) override;
protected:
void* mHwnd;
};
} // namespace a11y
} // namespace mozilla
#endif