gecko-dev/widget/windows/winrt/UIAAccessibilityBridge.cpp

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1.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; 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/. */
#if defined(ACCESSIBILITY)
#include "UIAAccessibilityBridge.h"
#include "MetroUtils.h"
#include <OAIdl.h>
#include "nsIAccessibleEvent.h"
#include "nsIAccessibleEditableText.h"
#include "nsIPersistentProperties2.h"
// generated
#include "UIABridge.h"
#include <wrl/implements.h>
using namespace mozilla::a11y;
namespace mozilla {
namespace widget {
namespace winrt {
using namespace Microsoft::WRL;
NS_IMPL_ISUPPORTS(AccessibilityBridge, nsIObserver)
nsresult
AccessibilityBridge::Observe(nsISupports *aSubject, const char *aTopic, const char16_t *aData)
{
nsCOMPtr<nsIAccessibleEvent> ev = do_QueryInterface(aSubject);
if (!ev) {
return NS_OK;
}
uint32_t eventType = 0;
ev->GetEventType(&eventType);
if (eventType == nsIAccessibleEvent::EVENT_FOCUS) {
Microsoft::WRL::ComPtr<IUIABridge> bridgePtr;
mBridge.As(&bridgePtr);
if (bridgePtr) {
bridgePtr->FocusChangeEvent();
}
}
return NS_OK;
}
} } }
#endif // ACCESSIBILITY