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/* -*- 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/. */
#include "HTMLWin32ObjectAccessible.h"
#include "Role.h"
#include "States.h"
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// HTMLWin32ObjectOwnerAccessible
////////////////////////////////////////////////////////////////////////////////
HTMLWin32ObjectOwnerAccessible::
HTMLWin32ObjectOwnerAccessible(nsIContent* aContent,
DocAccessible* aDoc, void* aHwnd) :
AccessibleWrap(aContent, aDoc), mHwnd(aHwnd)
{
mStateFlags |= eNoKidsFromDOM;
// Our only child is a HTMLWin32ObjectAccessible object.
if (mHwnd) {
mNativeAccessible = new HTMLWin32ObjectAccessible(mHwnd, aDoc);
AppendChild(mNativeAccessible);
}
}
////////////////////////////////////////////////////////////////////////////////
// HTMLWin32ObjectOwnerAccessible: Accessible implementation
void
HTMLWin32ObjectOwnerAccessible::Shutdown()
{
AccessibleWrap::Shutdown();
mNativeAccessible = nullptr;
}
role
HTMLWin32ObjectOwnerAccessible::NativeRole()
{
return roles::EMBEDDED_OBJECT;
}
bool
HTMLWin32ObjectOwnerAccessible::NativelyUnavailable() const
{
// XXX: No HWND means this is windowless plugin which is not accessible in
// the meantime.
return !mHwnd;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLWin32ObjectAccessible
////////////////////////////////////////////////////////////////////////////////
HTMLWin32ObjectAccessible::HTMLWin32ObjectAccessible(void* aHwnd,
DocAccessible* aDoc) :
DummyAccessible(aDoc)
{
mHwnd = aHwnd;
if (mHwnd) {
// The plugin is not windowless. In this situation we use
// use its inner child owned by the plugin so that we don't get
// in an infinite loop, where the WM_GETOBJECT's get forwarded
// back to us and create another HTMLWin32ObjectAccessible
mHwnd = ::GetWindow((HWND)aHwnd, GW_CHILD);
}
}
void
HTMLWin32ObjectAccessible::GetNativeInterface(void** aNativeAccessible)
{
if (mHwnd) {
::AccessibleObjectFromWindow(static_cast<HWND>(mHwnd),
OBJID_WINDOW, IID_IAccessible,
aNativeAccessible);
}
}
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