142 lines
3.8 KiB
C++
142 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:expandtab:shiftwidth=2:tabstop=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 "ia2AccessibleHypertext.h"
|
|
|
|
#include "AccessibleHypertext_i.c"
|
|
#include "AccessibleHypertext2_i.c"
|
|
|
|
#include "mozilla/a11y/HyperTextAccessibleBase.h"
|
|
|
|
#include "IUnknownImpl.h"
|
|
|
|
using namespace mozilla::a11y;
|
|
|
|
HyperTextAccessibleBase* ia2AccessibleHypertext::TextAcc() {
|
|
Accessible* acc = Acc();
|
|
return acc ? acc->AsHyperTextBase() : nullptr;
|
|
}
|
|
|
|
// IUnknown
|
|
STDMETHODIMP
|
|
ia2AccessibleHypertext::QueryInterface(REFIID aIID, void** aInstancePtr) {
|
|
if (!aInstancePtr) return E_FAIL;
|
|
|
|
*aInstancePtr = nullptr;
|
|
|
|
Accessible* acc = Acc();
|
|
if (acc && acc->IsTextRole()) {
|
|
if (aIID == IID_IAccessibleText) {
|
|
*aInstancePtr =
|
|
static_cast<IAccessibleText*>(static_cast<ia2AccessibleText*>(this));
|
|
} else if (aIID == IID_IAccessibleHypertext) {
|
|
*aInstancePtr = static_cast<IAccessibleHypertext*>(this);
|
|
} else if (aIID == IID_IAccessibleHypertext2) {
|
|
*aInstancePtr = static_cast<IAccessibleHypertext2*>(this);
|
|
} else if (aIID == IID_IAccessibleEditableText) {
|
|
*aInstancePtr = static_cast<IAccessibleEditableText*>(this);
|
|
} else if (aIID == IID_IAccessibleTextSelectionContainer) {
|
|
*aInstancePtr = static_cast<IAccessibleTextSelectionContainer*>(this);
|
|
}
|
|
|
|
if (*aInstancePtr) {
|
|
AddRef();
|
|
return S_OK;
|
|
}
|
|
}
|
|
|
|
return MsaaAccessible::QueryInterface(aIID, aInstancePtr);
|
|
}
|
|
|
|
// IAccessibleHypertext
|
|
|
|
STDMETHODIMP
|
|
ia2AccessibleHypertext::get_nHyperlinks(long* aHyperlinkCount) {
|
|
if (!aHyperlinkCount) return E_INVALIDARG;
|
|
|
|
*aHyperlinkCount = 0;
|
|
|
|
HyperTextAccessibleBase* hyperText = TextAcc();
|
|
if (!hyperText) return CO_E_OBJNOTCONNECTED;
|
|
|
|
*aHyperlinkCount = hyperText->LinkCount();
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP
|
|
ia2AccessibleHypertext::get_hyperlink(long aLinkIndex,
|
|
IAccessibleHyperlink** aHyperlink) {
|
|
if (!aHyperlink) return E_INVALIDARG;
|
|
|
|
*aHyperlink = nullptr;
|
|
|
|
HyperTextAccessibleBase* hyperText = TextAcc();
|
|
if (!hyperText) {
|
|
return CO_E_OBJNOTCONNECTED;
|
|
}
|
|
|
|
Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
|
|
|
|
if (!hyperLink) return E_FAIL;
|
|
|
|
RefPtr<IAccessibleHyperlink> result = MsaaAccessible::GetFrom(hyperLink);
|
|
result.forget(aHyperlink);
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP
|
|
ia2AccessibleHypertext::get_hyperlinkIndex(long aCharIndex,
|
|
long* aHyperlinkIndex) {
|
|
if (!aHyperlinkIndex) return E_INVALIDARG;
|
|
|
|
*aHyperlinkIndex = 0;
|
|
|
|
HyperTextAccessibleBase* hyperAcc = TextAcc();
|
|
if (!hyperAcc) return CO_E_OBJNOTCONNECTED;
|
|
|
|
*aHyperlinkIndex = hyperAcc->LinkIndexAtOffset(aCharIndex);
|
|
return S_OK;
|
|
}
|
|
|
|
STDMETHODIMP
|
|
ia2AccessibleHypertext::get_hyperlinks(IAccessibleHyperlink*** aHyperlinks,
|
|
long* aNHyperlinks) {
|
|
if (!aHyperlinks || !aNHyperlinks) {
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
*aHyperlinks = nullptr;
|
|
*aNHyperlinks = 0;
|
|
|
|
HyperTextAccessibleBase* hyperText = TextAcc();
|
|
if (!hyperText) {
|
|
return CO_E_OBJNOTCONNECTED;
|
|
}
|
|
|
|
uint32_t count = hyperText->LinkCount();
|
|
*aNHyperlinks = count;
|
|
|
|
if (count == 0) {
|
|
*aHyperlinks = nullptr;
|
|
return S_FALSE;
|
|
}
|
|
|
|
*aHyperlinks = static_cast<IAccessibleHyperlink**>(
|
|
::CoTaskMemAlloc(sizeof(IAccessibleHyperlink*) * count));
|
|
if (!*aHyperlinks) {
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < count; ++i) {
|
|
Accessible* hyperLink = hyperText->LinkAt(i);
|
|
MOZ_ASSERT(hyperLink);
|
|
RefPtr<IAccessibleHyperlink> iaHyper = MsaaAccessible::GetFrom(hyperLink);
|
|
iaHyper.forget(&(*aHyperlinks)[i]);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|