mirror of
https://github.com/mozilla/gecko-dev.git
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143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if defined(ACCESSIBILITY)
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#include "UIAAccessibilityBridge.h"
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#include "MetroUtils.h"
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#include <OAIdl.h>
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#include "nsIAccessibleEvent.h"
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#include "nsIAccessibleEditableText.h"
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#include "nsIPersistentProperties2.h"
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// generated
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#include "UIABridge.h"
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#include <wrl/implements.h>
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//#define DEBUG_BRIDGE
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#if !defined(DEBUG_BRIDGE)
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#undef LogThread
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#undef LogFunction
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#undef Log
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#define LogThread()
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#define LogFunction()
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#define Log(...)
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#endif
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using namespace mozilla::a11y;
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namespace mozilla {
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namespace widget {
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namespace winrt {
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using namespace Microsoft::WRL;
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NS_IMPL_ISUPPORTS1(AccessibilityBridge, nsIObserver)
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nsresult
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AccessibilityBridge::Observe(nsISupports *aSubject, const char *aTopic, const PRUnichar *aData)
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{
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nsCOMPtr<nsIAccessibleEvent> ev = do_QueryInterface(aSubject);
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if (!ev) {
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return NS_OK;
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}
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uint32_t eventType = 0;
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ev->GetEventType(&eventType);
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switch (eventType) {
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case nsIAccessibleEvent::EVENT_FOCUS:
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Log(L"EVENT_FOCUS");
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{
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nsCOMPtr<nsIAccessible> item;
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ev->GetAccessible(getter_AddRefs(item));
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Accessible* access = (Accessible*)item.get();
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Log(L"Focus element flags: %d %d %d",
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((access->NativeState() & mozilla::a11y::states::EDITABLE) > 0),
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((access->NativeState() & mozilla::a11y::states::FOCUSABLE) > 0),
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((access->NativeState() & mozilla::a11y::states::READONLY) > 0)
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);
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bool focusable = (((access->NativeState() & mozilla::a11y::states::EDITABLE) > 0) &&
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((access->NativeState() & mozilla::a11y::states::READONLY) == 0));
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if (focusable) {
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Log(L"focus item can be focused");
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// we have a text input
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Microsoft::WRL::ComPtr<IUIAElement> bridgePtr;
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mBridge.As(&bridgePtr);
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if (bridgePtr) {
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bridgePtr->SetFocusInternal(reinterpret_cast<LONG_PTR>(item.get()));
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}
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} else {
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Log(L"focus item can't have focus");
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Microsoft::WRL::ComPtr<IUIAElement> bridgePtr;
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mBridge.As(&bridgePtr);
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if (bridgePtr) {
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bridgePtr->ClearFocus();
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}
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}
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}
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break;
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/*
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case nsIAccessibleEvent::EVENT_SHOW:
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Log(L"EVENT_SHOW");
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break;
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case nsIAccessibleEvent::EVENT_HIDE:
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Log(L"EVENT_HIDE");
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break;
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case nsIAccessibleEvent::EVENT_STATE_CHANGE:
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Log(L"EVENT_STATE_CHANGE");
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break;
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case nsIAccessibleEvent::EVENT_SELECTION:
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Log(L"EVENT_SELECTION");
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break;
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case nsIAccessibleEvent::EVENT_SELECTION_ADD:
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Log(L"EVENT_SELECTION_ADD");
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break;
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case nsIAccessibleEvent::EVENT_SELECTION_REMOVE:
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Log(L"EVENT_SELECTION_REMOVE");
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break;
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case nsIAccessibleEvent::EVENT_SELECTION_WITHIN:
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Log(L"EVENT_SELECTION_WITHIN");
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break;
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case nsIAccessibleEvent::EVENT_TEXT_CARET_MOVED:
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Log(L"EVENT_TEXT_CARET_MOVED");
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break;
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case nsIAccessibleEvent::EVENT_TEXT_CHANGED:
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Log(L"EVENT_TEXT_CHANGED");
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break;
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case nsIAccessibleEvent::EVENT_TEXT_INSERTED:
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Log(L"EVENT_TEXT_INSERTED");
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break;
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case nsIAccessibleEvent::EVENT_TEXT_REMOVED:
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Log(L"EVENT_TEXT_REMOVED");
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break;
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case nsIAccessibleEvent::EVENT_TEXT_UPDATED:
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Log(L"EVENT_TEXT_UPDATED");
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break;
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case nsIAccessibleEvent::EVENT_TEXT_SELECTION_CHANGED:
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Log(L"EVENT_TEXT_SELECTION_CHANGED");
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break;
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case nsIAccessibleEvent::EVENT_SECTION_CHANGED:
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Log(L"EVENT_SECTION_CHANGED");
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break;
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case nsIAccessibleEvent::EVENT_WINDOW_ACTIVATE:
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Log(L"EVENT_WINDOW_ACTIVATE");
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break;
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*/
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default:
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return NS_OK;
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}
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return NS_OK;
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}
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} } }
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#endif // ACCESSIBILITY
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