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68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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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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#include "HyperTextAccessibleWrap.h"
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#include "Accessible-inl.h"
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#include "nsEventShell.h"
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#include "mozilla/StaticPtr.h"
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using namespace mozilla;
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using namespace mozilla::a11y;
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NS_IMPL_ISUPPORTS_INHERITED0(HyperTextAccessibleWrap,
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HyperTextAccessible)
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STDMETHODIMP
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HyperTextAccessibleWrap::QueryInterface(REFIID aIID, void** aInstancePtr)
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{
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if (!aInstancePtr)
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return E_FAIL;
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*aInstancePtr = nullptr;
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if (IsTextRole()) {
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if (aIID == IID_IAccessibleText)
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*aInstancePtr =
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static_cast<IAccessibleText*>(static_cast<ia2AccessibleText*>(this));
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else if (aIID == IID_IAccessibleHypertext)
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*aInstancePtr = static_cast<IAccessibleHypertext*>(this);
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else if (aIID == IID_IAccessibleEditableText)
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*aInstancePtr = static_cast<IAccessibleEditableText*>(this);
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if (*aInstancePtr) {
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AddRef();
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return S_OK;
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}
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}
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return AccessibleWrap::QueryInterface(aIID, aInstancePtr);
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}
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nsresult
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HyperTextAccessibleWrap::HandleAccEvent(AccEvent* aEvent)
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{
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uint32_t eventType = aEvent->GetEventType();
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if (eventType == nsIAccessibleEvent::EVENT_TEXT_REMOVED ||
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eventType == nsIAccessibleEvent::EVENT_TEXT_INSERTED) {
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Accessible* accessible = aEvent->GetAccessible();
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if (accessible && accessible->IsHyperText()) {
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AccTextChangeEvent* event = downcast_accEvent(aEvent);
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HyperTextAccessibleWrap* text =
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static_cast<HyperTextAccessibleWrap*>(accessible->AsHyperText());
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ia2AccessibleText::UpdateTextChangeData(text, event->IsTextInserted(),
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event->ModifiedText(),
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event->GetStartOffset(),
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event->GetLength());
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}
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}
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return HyperTextAccessible::HandleAccEvent(aEvent);
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}
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