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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() const {
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) {
#if defined(MOZ_SANDBOX)
if (XRE_IsContentProcess()) {
DocAccessibleChild* ipcDoc = aDoc->IPCDoc();
MOZ_ASSERT(ipcDoc);
if (!ipcDoc) {
return;
}
IAccessibleHolder proxyHolder;
if (!ipcDoc->SendGetWindowedPluginIAccessible(
reinterpret_cast<uintptr_t>(mHwnd), &proxyHolder)) {
return;
}
mCOMProxy.reset(proxyHolder.Release());
return;
}
#endif
// 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 defined(MOZ_SANDBOX)
if (XRE_IsContentProcess()) {
RefPtr<IAccessible> addRefed = mCOMProxy.get();
addRefed.forget(aNativeAccessible);
return;
}
#endif
if (mHwnd) {
::AccessibleObjectFromWindow(static_cast<HWND>(mHwnd), OBJID_WINDOW,
IID_IAccessible, aNativeAccessible);
}
}
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