mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 05:41:12 +00:00
582 lines
12 KiB
C++
582 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "Accessible-inl.h"
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#include "nsAccUtils.h"
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#include "nsIAccessibleRelation.h"
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#include "nsIAccessibleRole.h"
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#include "nsAccessibleRelation.h"
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#include "Relation.h"
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#include "Role.h"
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#include "RootAccessible.h"
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#include "xpcAccessibleDocument.h"
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#include "nsIMutableArray.h"
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#include "nsIPersistentProperties2.h"
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using namespace mozilla::a11y;
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NS_IMETHODIMP
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xpcAccessible::GetParent(nsIAccessible** aParent)
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{
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NS_ENSURE_ARG_POINTER(aParent);
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if (!Intl())
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return NS_ERROR_FAILURE;
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NS_IF_ADDREF(*aParent = ToXPC(Intl()->Parent()));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetNextSibling(nsIAccessible** aNextSibling)
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{
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NS_ENSURE_ARG_POINTER(aNextSibling);
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*aNextSibling = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsresult rv = NS_OK;
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NS_IF_ADDREF(*aNextSibling = ToXPC(Intl()->GetSiblingAtOffset(1, &rv)));
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return rv;
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}
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NS_IMETHODIMP
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xpcAccessible::GetPreviousSibling(nsIAccessible** aPreviousSibling)
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{
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NS_ENSURE_ARG_POINTER(aPreviousSibling);
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*aPreviousSibling = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsresult rv = NS_OK;
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NS_IF_ADDREF(*aPreviousSibling = ToXPC(Intl()->GetSiblingAtOffset(-1, &rv)));
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return rv;
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}
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NS_IMETHODIMP
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xpcAccessible::GetFirstChild(nsIAccessible** aFirstChild)
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{
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NS_ENSURE_ARG_POINTER(aFirstChild);
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*aFirstChild = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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NS_IF_ADDREF(*aFirstChild = ToXPC(Intl()->FirstChild()));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetLastChild(nsIAccessible** aLastChild)
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{
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NS_ENSURE_ARG_POINTER(aLastChild);
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*aLastChild = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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NS_IF_ADDREF(*aLastChild = ToXPC(Intl()->LastChild()));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetChildCount(int32_t* aChildCount)
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{
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NS_ENSURE_ARG_POINTER(aChildCount);
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if (!Intl())
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return NS_ERROR_FAILURE;
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*aChildCount = Intl()->ChildCount();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetChildAt(int32_t aChildIndex, nsIAccessible** aChild)
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{
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NS_ENSURE_ARG_POINTER(aChild);
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*aChild = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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// If child index is negative, then return last child.
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// XXX: do we really need this?
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if (aChildIndex < 0)
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aChildIndex = Intl()->ChildCount() - 1;
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Accessible* child = Intl()->GetChildAt(aChildIndex);
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if (!child)
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return NS_ERROR_INVALID_ARG;
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NS_ADDREF(*aChild = ToXPC(child));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetChildren(nsIArray** aChildren)
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{
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NS_ENSURE_ARG_POINTER(aChildren);
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*aChildren = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsresult rv = NS_OK;
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nsCOMPtr<nsIMutableArray> children =
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do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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uint32_t childCount = Intl()->ChildCount();
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for (uint32_t childIdx = 0; childIdx < childCount; childIdx++) {
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Accessible* child = Intl()->GetChildAt(childIdx);
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children->AppendElement(static_cast<nsIAccessible*>(ToXPC(child)), false);
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}
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NS_ADDREF(*aChildren = children);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetIndexInParent(int32_t* aIndexInParent)
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{
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NS_ENSURE_ARG_POINTER(aIndexInParent);
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*aIndexInParent = Intl()->IndexInParent();
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return *aIndexInParent != -1 ? NS_OK : NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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xpcAccessible::GetDOMNode(nsIDOMNode** aDOMNode)
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{
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NS_ENSURE_ARG_POINTER(aDOMNode);
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*aDOMNode = nullptr;
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nsINode* node = Intl()->GetNode();
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if (node)
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CallQueryInterface(node, aDOMNode);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetDocument(nsIAccessibleDocument** aDocument)
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{
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NS_ENSURE_ARG_POINTER(aDocument);
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NS_IF_ADDREF(*aDocument = ToXPCDocument(Intl()->Document()));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetRootDocument(nsIAccessibleDocument** aRootDocument)
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{
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NS_ENSURE_ARG_POINTER(aRootDocument);
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NS_IF_ADDREF(*aRootDocument = ToXPCDocument(Intl()->RootAccessible()));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetRole(uint32_t* aRole)
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{
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NS_ENSURE_ARG_POINTER(aRole);
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*aRole = nsIAccessibleRole::ROLE_NOTHING;
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if (!Intl())
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return NS_ERROR_FAILURE;
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*aRole = Intl()->Role();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetState(uint32_t* aState, uint32_t* aExtraState)
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{
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NS_ENSURE_ARG_POINTER(aState);
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if (!Intl())
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nsAccUtils::To32States(states::DEFUNCT, aState, aExtraState);
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else
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nsAccUtils::To32States(Intl()->State(), aState, aExtraState);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetName(nsAString& aName)
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{
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aName.Truncate();
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsAutoString name;
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Intl()->Name(name);
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aName.Assign(name);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetDescription(nsAString& aDescription)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsAutoString desc;
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Intl()->Description(desc);
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aDescription.Assign(desc);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetLanguage(nsAString& aLanguage)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->Language(aLanguage);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetValue(nsAString& aValue)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsAutoString value;
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Intl()->Value(value);
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aValue.Assign(value);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetHelp(nsAString& aHelp)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsAutoString help;
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Intl()->Help(help);
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aHelp.Assign(help);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetAccessKey(nsAString& aAccessKey)
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{
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aAccessKey.Truncate();
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->AccessKey().ToString(aAccessKey);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetKeyboardShortcut(nsAString& aKeyBinding)
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{
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aKeyBinding.Truncate();
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->KeyboardShortcut().ToString(aKeyBinding);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetAttributes(nsIPersistentProperties** aAttributes)
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{
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NS_ENSURE_ARG_POINTER(aAttributes);
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*aAttributes = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIPersistentProperties> attributes = Intl()->Attributes();
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attributes.swap(*aAttributes);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetBounds(int32_t* aX, int32_t* aY,
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int32_t* aWidth, int32_t* aHeight)
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{
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NS_ENSURE_ARG_POINTER(aX);
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*aX = 0;
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NS_ENSURE_ARG_POINTER(aY);
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*aY = 0;
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NS_ENSURE_ARG_POINTER(aWidth);
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*aWidth = 0;
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NS_ENSURE_ARG_POINTER(aHeight);
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*aHeight = 0;
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsIntRect rect = Intl()->Bounds();
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*aX = rect.x;
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*aY = rect.y;
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*aWidth = rect.width;
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*aHeight = rect.height;;
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GroupPosition(int32_t* aGroupLevel,
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int32_t* aSimilarItemsInGroup,
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int32_t* aPositionInGroup)
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{
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NS_ENSURE_ARG_POINTER(aGroupLevel);
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*aGroupLevel = 0;
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NS_ENSURE_ARG_POINTER(aSimilarItemsInGroup);
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*aSimilarItemsInGroup = 0;
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NS_ENSURE_ARG_POINTER(aPositionInGroup);
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*aPositionInGroup = 0;
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if (!Intl())
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return NS_ERROR_FAILURE;
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GroupPos groupPos = Intl()->GroupPosition();
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*aGroupLevel = groupPos.level;
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*aSimilarItemsInGroup = groupPos.setSize;
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*aPositionInGroup = groupPos.posInSet;
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetRelationByType(uint32_t aType,
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nsIAccessibleRelation** aRelation)
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{
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NS_ENSURE_ARG_POINTER(aRelation);
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*aRelation = nullptr;
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NS_ENSURE_ARG(aType <= static_cast<uint32_t>(RelationType::LAST));
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if (!Intl())
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return NS_ERROR_FAILURE;
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Relation rel = Intl()->RelationByType(static_cast<RelationType>(aType));
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NS_ADDREF(*aRelation = new nsAccessibleRelation(aType, &rel));
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return *aRelation ? NS_OK : NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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xpcAccessible::GetRelations(nsIArray** aRelations)
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{
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NS_ENSURE_ARG_POINTER(aRelations);
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*aRelations = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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nsCOMPtr<nsIMutableArray> relations = do_CreateInstance(NS_ARRAY_CONTRACTID);
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NS_ENSURE_TRUE(relations, NS_ERROR_OUT_OF_MEMORY);
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static const uint32_t relationTypes[] = {
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nsIAccessibleRelation::RELATION_LABELLED_BY,
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nsIAccessibleRelation::RELATION_LABEL_FOR,
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nsIAccessibleRelation::RELATION_DESCRIBED_BY,
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nsIAccessibleRelation::RELATION_DESCRIPTION_FOR,
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nsIAccessibleRelation::RELATION_NODE_CHILD_OF,
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nsIAccessibleRelation::RELATION_NODE_PARENT_OF,
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nsIAccessibleRelation::RELATION_CONTROLLED_BY,
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nsIAccessibleRelation::RELATION_CONTROLLER_FOR,
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nsIAccessibleRelation::RELATION_FLOWS_TO,
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nsIAccessibleRelation::RELATION_FLOWS_FROM,
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nsIAccessibleRelation::RELATION_MEMBER_OF,
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nsIAccessibleRelation::RELATION_SUBWINDOW_OF,
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nsIAccessibleRelation::RELATION_EMBEDS,
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nsIAccessibleRelation::RELATION_EMBEDDED_BY,
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nsIAccessibleRelation::RELATION_POPUP_FOR,
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nsIAccessibleRelation::RELATION_PARENT_WINDOW_OF,
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nsIAccessibleRelation::RELATION_DEFAULT_BUTTON,
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nsIAccessibleRelation::RELATION_CONTAINING_DOCUMENT,
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nsIAccessibleRelation::RELATION_CONTAINING_TAB_PANE,
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nsIAccessibleRelation::RELATION_CONTAINING_APPLICATION
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};
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for (uint32_t idx = 0; idx < ArrayLength(relationTypes); idx++) {
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nsCOMPtr<nsIAccessibleRelation> relation;
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nsresult rv = GetRelationByType(relationTypes[idx], getter_AddRefs(relation));
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if (NS_SUCCEEDED(rv) && relation) {
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uint32_t targets = 0;
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relation->GetTargetsCount(&targets);
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if (targets)
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relations->AppendElement(relation, false);
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}
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}
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NS_ADDREF(*aRelations = relations);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetFocusedChild(nsIAccessible** aChild)
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{
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NS_ENSURE_ARG_POINTER(aChild);
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*aChild = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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NS_IF_ADDREF(*aChild = ToXPC(Intl()->FocusedChild()));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetChildAtPoint(int32_t aX, int32_t aY,
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nsIAccessible** aAccessible)
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{
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NS_ENSURE_ARG_POINTER(aAccessible);
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*aAccessible = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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NS_IF_ADDREF(*aAccessible =
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ToXPC(Intl()->ChildAtPoint(aX, aY, Accessible::eDirectChild)));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetDeepestChildAtPoint(int32_t aX, int32_t aY,
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nsIAccessible** aAccessible)
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{
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NS_ENSURE_ARG_POINTER(aAccessible);
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*aAccessible = nullptr;
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if (!Intl())
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return NS_ERROR_FAILURE;
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NS_IF_ADDREF(*aAccessible =
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ToXPC(Intl()->ChildAtPoint(aX, aY, Accessible::eDeepestChild)));
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::SetSelected(bool aSelect)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->SetSelected(aSelect);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::ExtendSelection()
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->ExtendSelection();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::TakeSelection()
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->TakeSelection();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::TakeFocus()
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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Intl()->TakeFocus();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetActionCount(uint8_t* aActionCount)
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{
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NS_ENSURE_ARG_POINTER(aActionCount);
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*aActionCount = 0;
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if (!Intl())
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return NS_ERROR_FAILURE;
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*aActionCount = Intl()->ActionCount();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetActionName(uint8_t aIndex, nsAString& aName)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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if (aIndex >= Intl()->ActionCount())
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return NS_ERROR_INVALID_ARG;
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Intl()->ActionNameAt(aIndex, aName);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::GetActionDescription(uint8_t aIndex, nsAString& aDescription)
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{
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if (!Intl())
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return NS_ERROR_FAILURE;
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if (aIndex >= Intl()->ActionCount())
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return NS_ERROR_INVALID_ARG;
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Intl()->ActionDescriptionAt(aIndex, aDescription);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessible::DoAction(uint8_t aIndex)
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{
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if (!Intl())
|
|
return NS_ERROR_FAILURE;
|
|
|
|
return Intl()->DoAction(aIndex) ?
|
|
NS_OK : NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
xpcAccessible::ScrollTo(uint32_t aHow)
|
|
{
|
|
if (!Intl())
|
|
return NS_ERROR_FAILURE;
|
|
|
|
Intl()->ScrollTo(aHow);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
xpcAccessible::ScrollToPoint(uint32_t aCoordinateType, int32_t aX, int32_t aY)
|
|
{
|
|
if (!Intl())
|
|
return NS_ERROR_FAILURE;
|
|
|
|
Intl()->ScrollToPoint(aCoordinateType, aX, aY);
|
|
return NS_OK;
|
|
}
|