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gecko/accessible/src/xul/nsXULSelectAccessible.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Original Author: Eric Vaughan (evaughan@netscape.com)
* Kyle Yuan (kyle.yuan@sun.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsXULSelectAccessible.h"
#include "nsAccessibilityService.h"
#include "nsIContent.h"
#include "nsIDOMXULMenuListElement.h"
#include "nsIDOMXULPopupElement.h"
#include "nsIDOMXULMultSelectCntrlEl.h"
#include "nsIDOMXULSelectCntrlItemEl.h"
#include "nsIDOMXULTextboxElement.h"
#include "nsIPresShell.h"
#include "nsIServiceManager.h"
#include "nsCaseTreatment.h"
////////////////////////////////////////////////////////////////////////////////
// nsXULColumnsAccessible
nsXULColumnsAccessible::
nsXULColumnsAccessible(nsIDOMNode *aDOMNode, nsIWeakReference *aShell) :
nsAccessibleWrap(aDOMNode, aShell)
{
}
NS_IMETHODIMP
nsXULColumnsAccessible::GetRole(PRUint32 *aRole)
{
NS_ENSURE_ARG_POINTER(aRole);
*aRole = nsIAccessibleRole::ROLE_LIST;
return NS_OK;
}
NS_IMETHODIMP
nsXULColumnsAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
{
NS_ENSURE_ARG_POINTER(aState);
*aState = nsIAccessibleStates::STATE_READONLY;
if (aExtraState) {
*aExtraState = mDOMNode ? 0 : nsIAccessibleStates::EXT_STATE_DEFUNCT ;
}
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsXULColumnItemAccessible
nsXULColumnItemAccessible::
nsXULColumnItemAccessible(nsIDOMNode *aDOMNode, nsIWeakReference *aShell) :
nsLeafAccessible(aDOMNode, aShell)
{
}
NS_IMETHODIMP
nsXULColumnItemAccessible::GetRole(PRUint32 *aRole)
{
NS_ENSURE_ARG_POINTER(aRole);
*aRole = nsIAccessibleRole::ROLE_COLUMNHEADER;
return NS_OK;
}
NS_IMETHODIMP
nsXULColumnItemAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
{
NS_ENSURE_ARG_POINTER(aState);
*aState = nsIAccessibleStates::STATE_READONLY;
if (aExtraState) {
*aExtraState = mDOMNode ? 0 : nsIAccessibleStates::EXT_STATE_DEFUNCT ;
}
return NS_OK;
}
NS_IMETHODIMP
nsXULColumnItemAccessible::GetName(nsAString& aName)
{
return GetXULName(aName);
}
NS_IMETHODIMP
nsXULColumnItemAccessible::GetNumActions(PRUint8 *aNumActions)
{
NS_ENSURE_ARG_POINTER(aNumActions);
*aNumActions = 1;
return NS_OK;
}
NS_IMETHODIMP
nsXULColumnItemAccessible::GetActionName(PRUint8 aIndex, nsAString& aName)
{
if (aIndex != eAction_Click)
return NS_ERROR_INVALID_ARG;
aName.AssignLiteral("click");
return NS_OK;
}
NS_IMETHODIMP
nsXULColumnItemAccessible::DoAction(PRUint8 aIndex)
{
if (aIndex != eAction_Click)
return NS_ERROR_INVALID_ARG;
return DoCommand();
}
////////////////////////////////////////////////////////////////////////////////
// nsXULListboxAccessible
nsXULListboxAccessible::
nsXULListboxAccessible(nsIDOMNode* aDOMNode, nsIWeakReference* aShell) :
nsXULSelectableAccessible(aDOMNode, aShell)
{
}
NS_IMPL_ADDREF_INHERITED(nsXULListboxAccessible, nsXULSelectableAccessible)
NS_IMPL_RELEASE_INHERITED(nsXULListboxAccessible, nsXULSelectableAccessible)
nsresult
nsXULListboxAccessible::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
nsresult rv = nsXULSelectableAccessible::QueryInterface(aIID, aInstancePtr);
if (*aInstancePtr)
return rv;
if (aIID.Equals(NS_GET_IID(nsIAccessibleTable)) && IsTree()) {
*aInstancePtr = static_cast<nsIAccessibleTable*>(this);
NS_ADDREF_THIS();
return NS_OK;
}
return NS_ERROR_NO_INTERFACE;
}
PRBool
nsXULListboxAccessible::IsTree()
{
PRInt32 numColumns = 0;
nsresult rv = GetColumns(&numColumns);
if (NS_FAILED(rv))
return PR_FALSE;
return numColumns > 1;
}
////////////////////////////////////////////////////////////////////////////////
// nsXULListboxAccessible. nsIAccessible
NS_IMETHODIMP
nsXULListboxAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
{
// As a nsXULListboxAccessible we can have the following states:
// STATE_FOCUSED
// STATE_READONLY
// STATE_FOCUSABLE
// Get focus status from base class
nsresult rv = nsAccessible::GetState(aState, aExtraState);
NS_ENSURE_SUCCESS(rv, rv);
if (!mDOMNode) {
return NS_OK;
}
// see if we are multiple select if so set ourselves as such
nsCOMPtr<nsIDOMElement> element (do_QueryInterface(mDOMNode));
if (element) {
nsAutoString selType;
element->GetAttribute(NS_LITERAL_STRING("seltype"), selType);
if (!selType.IsEmpty() && selType.EqualsLiteral("multiple"))
*aState |= nsIAccessibleStates::STATE_MULTISELECTABLE |
nsIAccessibleStates::STATE_EXTSELECTABLE;
}
return NS_OK;
}
/**
* Our value is the label of our ( first ) selected child.
*/
NS_IMETHODIMP nsXULListboxAccessible::GetValue(nsAString& _retval)
{
_retval.Truncate();
nsCOMPtr<nsIDOMXULSelectControlElement> select(do_QueryInterface(mDOMNode));
if (select) {
nsCOMPtr<nsIDOMXULSelectControlItemElement> selectedItem;
select->GetSelectedItem(getter_AddRefs(selectedItem));
if (selectedItem)
return selectedItem->GetLabel(_retval);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsXULListboxAccessible::GetRole(PRUint32 *aRole)
{
nsCOMPtr<nsIContent> content = do_QueryInterface(mDOMNode);
if (content) {
// A richlistbox is used with the new autocomplete URL bar,
// and has a parent popup <panel>
nsCOMPtr<nsIDOMXULPopupElement> xulPopup =
do_QueryInterface(content->GetParent());
if (xulPopup) {
*aRole = nsIAccessibleRole::ROLE_COMBOBOX_LIST;
return NS_OK;
}
}
if (IsTree())
*aRole = nsIAccessibleRole::ROLE_TABLE;
else
*aRole = nsIAccessibleRole::ROLE_LISTBOX;
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsXULListboxAccessible. nsIAccessibleTable
NS_IMETHODIMP
nsXULListboxAccessible::GetCaption(nsIAccessible **aCaption)
{
NS_ENSURE_ARG_POINTER(aCaption);
*aCaption = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSummary(nsAString &aSummary)
{
aSummary.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetColumns(PRInt32 *aNumColumns)
{
NS_ENSURE_ARG_POINTER(aNumColumns);
*aNumColumns = 0;
if (!mDOMNode)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
nsCOMPtr<nsIContent> headContent;
PRUint32 count = content->GetChildCount();
for (PRUint32 index = 0; index < count; ++index) {
nsCOMPtr<nsIContent> childContent(content->GetChildAt(index));
NS_ENSURE_STATE(childContent);
if (childContent->NodeInfo()->Equals(nsAccessibilityAtoms::listcols,
kNameSpaceID_XUL)) {
headContent = childContent;
}
}
if (!headContent)
return NS_OK;
PRUint32 columnCount = 0;
count = headContent->GetChildCount();
for (PRUint32 index = 0; index < count; ++index) {
nsCOMPtr<nsIContent> childContent(headContent->GetChildAt(index));
NS_ENSURE_STATE(childContent);
if (childContent->NodeInfo()->Equals(nsAccessibilityAtoms::listcol,
kNameSpaceID_XUL)) {
columnCount++;
}
}
*aNumColumns = columnCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetColumnHeader(nsIAccessibleTable **aColumnHeader)
{
NS_ENSURE_ARG_POINTER(aColumnHeader);
*aColumnHeader = nsnull;
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetRows(PRInt32 *aNumRows)
{
NS_ENSURE_ARG_POINTER(aNumRows);
*aNumRows = 0;
if (!mDOMNode)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULSelectControlElement> element(do_QueryInterface(mDOMNode));
NS_ENSURE_STATE(element);
PRUint32 itemCount = 0;
nsresult rv = element->GetItemCount(&itemCount);
NS_ENSURE_SUCCESS(rv, rv);
*aNumRows = itemCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetRowHeader(nsIAccessibleTable **aRowHeader)
{
NS_ENSURE_ARG_POINTER(aRowHeader);
*aRowHeader = nsnull;
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsXULListboxAccessible::CellRefAt(PRInt32 aRow, PRInt32 aColumn,
nsIAccessible **aAccessibleCell)
{
NS_ENSURE_ARG_POINTER(aAccessibleCell);
*aAccessibleCell = nsnull;
if (IsDefunct())
return NS_OK;
nsCOMPtr<nsIDOMXULSelectControlElement> control =
do_QueryInterface(mDOMNode);
nsCOMPtr<nsIDOMXULSelectControlItemElement> item;
control->GetItemAtIndex(aRow, getter_AddRefs(item));
NS_ENSURE_TRUE(item, NS_ERROR_INVALID_ARG);
nsCOMPtr<nsIAccessible> accessibleRow;
GetAccService()->GetAccessibleInWeakShell(item, mWeakShell,
getter_AddRefs(accessibleRow));
NS_ENSURE_STATE(accessibleRow);
nsresult rv = accessibleRow->GetChildAt(aColumn, aAccessibleCell);
NS_ENSURE_SUCCESS(rv, NS_ERROR_INVALID_ARG);
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetIndexAt(PRInt32 aRow, PRInt32 aColumn,
PRInt32 *aIndex)
{
NS_ENSURE_ARG_POINTER(aIndex);
*aIndex = -1;
PRInt32 rowCount = 0;
nsresult rv = GetRows(&rowCount);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(0 <= aRow && aRow <= rowCount, NS_ERROR_INVALID_ARG);
PRInt32 columnCount = 0;
rv = GetColumns(&columnCount);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(0 <= aColumn && aColumn <= columnCount, NS_ERROR_INVALID_ARG);
*aIndex = aRow * columnCount + aColumn;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetColumnAtIndex(PRInt32 aIndex, PRInt32 *aColumn)
{
NS_ENSURE_ARG_POINTER(aColumn);
*aColumn = -1;
PRInt32 columnCount = 0;
nsresult rv = GetColumns(&columnCount);
NS_ENSURE_SUCCESS(rv, rv);
*aColumn = aIndex % columnCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetRowAtIndex(PRInt32 aIndex, PRInt32 *aRow)
{
NS_ENSURE_ARG_POINTER(aRow);
*aRow = -1;
PRInt32 columnCount = 0;
nsresult rv = GetColumns(&columnCount);
NS_ENSURE_SUCCESS(rv, rv);
*aRow = aIndex / columnCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetColumnExtentAt(PRInt32 aRow, PRInt32 aColumn,
PRInt32 *aCellSpans)
{
NS_ENSURE_ARG_POINTER(aCellSpans);
*aCellSpans = 1;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetRowExtentAt(PRInt32 aRow, PRInt32 aColumn,
PRInt32 *aCellSpans)
{
NS_ENSURE_ARG_POINTER(aCellSpans);
*aCellSpans = 1;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetColumnDescription(PRInt32 aColumn,
nsAString& aDescription)
{
aDescription.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetRowDescription(PRInt32 aRow, nsAString& aDescription)
{
aDescription.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::IsColumnSelected(PRInt32 aColumn, PRBool *aIsSelected)
{
NS_ENSURE_ARG_POINTER(aIsSelected);
*aIsSelected = PR_FALSE;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
PRInt32 selectedRowsCount = 0;
nsresult rv = control->GetSelectedCount(&selectedRowsCount);
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 rowsCount = 0;
rv = GetRows(&rowsCount);
NS_ENSURE_SUCCESS(rv, rv);
*aIsSelected = (selectedRowsCount == rowsCount);
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::IsRowSelected(PRInt32 aRow, PRBool *aIsSelected)
{
NS_ENSURE_ARG_POINTER(aIsSelected);
*aIsSelected = PR_FALSE;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULSelectControlElement.");
nsCOMPtr<nsIDOMXULSelectControlItemElement> item;
control->GetItemAtIndex(aRow, getter_AddRefs(item));
NS_ENSURE_TRUE(item, NS_ERROR_INVALID_ARG);
return item->GetSelected(aIsSelected);
}
NS_IMETHODIMP
nsXULListboxAccessible::IsCellSelected(PRInt32 aRow, PRInt32 aColumn,
PRBool *aIsSelected)
{
return IsRowSelected(aRow, aIsSelected);
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSelectedCellsCount(PRUint32* aCount)
{
NS_ENSURE_ARG_POINTER(aCount);
*aCount = 0;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
nsCOMPtr<nsIDOMNodeList> selectedItems;
control->GetSelectedItems(getter_AddRefs(selectedItems));
if (!selectedItems)
return NS_OK;
PRUint32 selectedItemsCount = 0;
nsresult rv = selectedItems->GetLength(&selectedItemsCount);
NS_ENSURE_SUCCESS(rv, rv);
if (!selectedItemsCount)
return NS_OK;
PRInt32 columnsCount = 0;
rv = GetColumns(&columnsCount);
NS_ENSURE_SUCCESS(rv, rv);
*aCount = selectedItemsCount * columnsCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSelectedColumnsCount(PRUint32* aCount)
{
NS_ENSURE_ARG_POINTER(aCount);
*aCount = 0;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
PRInt32 selectedRowsCount = 0;
nsresult rv = control->GetSelectedCount(&selectedRowsCount);
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 rowsCount = 0;
rv = GetRows(&rowsCount);
NS_ENSURE_SUCCESS(rv, rv);
if (selectedRowsCount != rowsCount)
return NS_OK;
PRInt32 columnsCount = 0;
rv = GetColumns(&columnsCount);
NS_ENSURE_SUCCESS(rv, rv);
*aCount = columnsCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSelectedRowsCount(PRUint32* aCount)
{
NS_ENSURE_ARG_POINTER(aCount);
*aCount = 0;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
PRInt32 selectedRowsCount = 0;
nsresult rv = control->GetSelectedCount(&selectedRowsCount);
NS_ENSURE_SUCCESS(rv, rv);
*aCount = selectedRowsCount;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSelectedCells(PRUint32 *aNumCells, PRInt32 **aCells)
{
NS_ENSURE_ARG_POINTER(aNumCells);
*aNumCells = 0;
NS_ENSURE_ARG_POINTER(aCells);
*aCells = nsnull;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
nsCOMPtr<nsIDOMNodeList> selectedItems;
control->GetSelectedItems(getter_AddRefs(selectedItems));
if (!selectedItems)
return NS_OK;
PRUint32 selectedItemsCount = 0;
nsresult rv = selectedItems->GetLength(&selectedItemsCount);
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 columnsCount = 0;
rv = GetColumns(&columnsCount);
NS_ENSURE_SUCCESS(rv, rv);
PRUint32 cellsCount = selectedItemsCount * columnsCount;
PRInt32 *cellsIdxArray =
static_cast<PRInt32*>(nsMemory::Alloc((cellsCount) * sizeof(PRInt32)));
NS_ENSURE_TRUE(cellsIdxArray, NS_ERROR_OUT_OF_MEMORY);
PRUint32 index = 0, cellsIdx = 0;
for (; index < selectedItemsCount; index++) {
nsCOMPtr<nsIDOMNode> itemNode;
selectedItems->Item(index, getter_AddRefs(itemNode));
nsCOMPtr<nsIDOMXULSelectControlItemElement> item =
do_QueryInterface(itemNode);
if (item) {
PRInt32 itemIdx = -1;
control->GetIndexOfItem(item, &itemIdx);
if (itemIdx != -1) {
PRInt32 colIdx = 0;
for (; colIdx < columnsCount; colIdx++)
cellsIdxArray[cellsIdx++] = itemIdx * columnsCount + colIdx;
}
}
}
*aNumCells = cellsCount;
*aCells = cellsIdxArray;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSelectedColumns(PRUint32 *aNumColumns,
PRInt32 **aColumns)
{
NS_ENSURE_ARG_POINTER(aNumColumns);
*aNumColumns = 0;
NS_ENSURE_ARG_POINTER(aColumns);
*aColumns = nsnull;
if (IsDefunct())
return NS_ERROR_FAILURE;
PRUint32 columnsCount = 0;
nsresult rv = GetSelectedColumnsCount(&columnsCount);
NS_ENSURE_SUCCESS(rv, rv);
if (!columnsCount)
return NS_OK;
PRInt32 *colsIdxArray =
static_cast<PRInt32*>(nsMemory::Alloc((columnsCount) * sizeof(PRInt32)));
NS_ENSURE_TRUE(colsIdxArray, NS_ERROR_OUT_OF_MEMORY);
PRUint32 colIdx = 0;
for (; colIdx < columnsCount; colIdx++)
colsIdxArray[colIdx] = colIdx;
*aNumColumns = columnsCount;
*aColumns = colsIdxArray;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::GetSelectedRows(PRUint32 *aNumRows, PRInt32 **aRows)
{
NS_ENSURE_ARG_POINTER(aNumRows);
*aNumRows = 0;
NS_ENSURE_ARG_POINTER(aRows);
*aRows = nsnull;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
nsCOMPtr<nsIDOMNodeList> selectedItems;
control->GetSelectedItems(getter_AddRefs(selectedItems));
if (!selectedItems)
return NS_OK;
PRUint32 selectedItemsCount = 0;
nsresult rv = selectedItems->GetLength(&selectedItemsCount);
NS_ENSURE_SUCCESS(rv, rv);
if (!selectedItemsCount)
return NS_OK;
PRInt32 *rowsIdxArray =
static_cast<PRInt32*>(nsMemory::Alloc((selectedItemsCount) * sizeof(PRInt32)));
NS_ENSURE_TRUE(rowsIdxArray, NS_ERROR_OUT_OF_MEMORY);
PRUint32 index = 0;
for (; index < selectedItemsCount; index++) {
nsCOMPtr<nsIDOMNode> itemNode;
selectedItems->Item(index, getter_AddRefs(itemNode));
nsCOMPtr<nsIDOMXULSelectControlItemElement> item =
do_QueryInterface(itemNode);
if (item) {
PRInt32 itemIdx = -1;
control->GetIndexOfItem(item, &itemIdx);
if (itemIdx != -1)
rowsIdxArray[index] = itemIdx;
}
}
*aNumRows = selectedItemsCount;
*aRows = rowsIdxArray;
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::SelectRow(PRInt32 aRow)
{
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
nsCOMPtr<nsIDOMXULSelectControlItemElement> item;
control->GetItemAtIndex(aRow, getter_AddRefs(item));
NS_ENSURE_TRUE(item, NS_ERROR_INVALID_ARG);
return control->SelectItem(item);
}
NS_IMETHODIMP
nsXULListboxAccessible::SelectColumn(PRInt32 aColumn)
{
// xul:listbox and xul:richlistbox support row selection only.
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::UnselectRow(PRInt32 aRow)
{
if (IsDefunct())
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> control =
do_QueryInterface(mDOMNode);
NS_ASSERTION(control,
"Doesn't implement nsIDOMXULMultiSelectControlElement.");
nsCOMPtr<nsIDOMXULSelectControlItemElement> item;
control->GetItemAtIndex(aRow, getter_AddRefs(item));
NS_ENSURE_TRUE(item, NS_ERROR_INVALID_ARG);
return control->RemoveItemFromSelection(item);
}
NS_IMETHODIMP
nsXULListboxAccessible::UnselectColumn(PRInt32 aColumn)
{
// xul:listbox and xul:richlistbox support row selection only.
return NS_OK;
}
NS_IMETHODIMP
nsXULListboxAccessible::IsProbablyForLayout(PRBool *aIsProbablyForLayout)
{
NS_ENSURE_ARG_POINTER(aIsProbablyForLayout);
*aIsProbablyForLayout = PR_FALSE;
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsXULListitemAccessible
nsXULListitemAccessible::
nsXULListitemAccessible(nsIDOMNode* aDOMNode, nsIWeakReference* aShell) :
nsXULMenuitemAccessible(aDOMNode, aShell)
{
mIsCheckbox = PR_FALSE;
nsCOMPtr<nsIDOMElement> listItem (do_QueryInterface(mDOMNode));
if (listItem) {
nsAutoString typeString;
nsresult res = listItem->GetAttribute(NS_LITERAL_STRING("type"), typeString);
if (NS_SUCCEEDED(res) && typeString.Equals(NS_LITERAL_STRING("checkbox")))
mIsCheckbox = PR_TRUE;
}
}
/** Inherit the ISupports impl from nsAccessible, we handle nsIAccessibleSelectable */
NS_IMPL_ISUPPORTS_INHERITED0(nsXULListitemAccessible, nsAccessible)
already_AddRefed<nsIAccessible>
nsXULListitemAccessible::GetListAccessible()
{
if (IsDefunct())
return nsnull;
nsCOMPtr<nsIDOMXULSelectControlItemElement> listItem =
do_QueryInterface(mDOMNode);
if (!listItem)
return nsnull;
nsCOMPtr<nsIDOMXULSelectControlElement> list;
listItem->GetControl(getter_AddRefs(list));
nsCOMPtr<nsIDOMNode> listNode(do_QueryInterface(list));
if (!listNode)
return nsnull;
nsIAccessible *listAcc = nsnull;
GetAccService()->GetAccessibleInWeakShell(listNode, mWeakShell, &listAcc);
return listAcc;
}
////////////////////////////////////////////////////////////////////////////////
// nsXULListitemAccessible. nsIAccessible
/**
* If there is a Listcell as a child ( not anonymous ) use it, otherwise
* default to getting the name from GetXULName
*/
NS_IMETHODIMP nsXULListitemAccessible::GetName(nsAString& _retval)
{
if (!mDOMNode)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMNode> child;
if (NS_SUCCEEDED(mDOMNode->GetFirstChild(getter_AddRefs(child)))) {
nsCOMPtr<nsIDOMElement> childElement (do_QueryInterface(child));
if (childElement) {
nsAutoString tagName;
childElement->GetLocalName(tagName);
if (tagName.EqualsLiteral("listcell")) {
childElement->GetAttribute(NS_LITERAL_STRING("label"), _retval);
return NS_OK;
}
}
}
return GetXULName(_retval);
}
/**
*
*/
NS_IMETHODIMP nsXULListitemAccessible::GetRole(PRUint32 *aRole)
{
nsCOMPtr<nsIAccessible> listAcc = GetListAccessible();
NS_ENSURE_STATE(listAcc);
if (Role(listAcc) == nsIAccessibleRole::ROLE_TABLE) {
*aRole = nsIAccessibleRole::ROLE_ROW;
return NS_OK;
}
if (mIsCheckbox)
*aRole = nsIAccessibleRole::ROLE_CHECKBUTTON;
else if (mParent && Role(mParent) == nsIAccessibleRole::ROLE_COMBOBOX_LIST)
*aRole = nsIAccessibleRole::ROLE_COMBOBOX_OPTION;
else
*aRole = nsIAccessibleRole::ROLE_RICH_OPTION;
return NS_OK;
}
/**
*
*/
NS_IMETHODIMP
nsXULListitemAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
{
if (mIsCheckbox) {
return nsXULMenuitemAccessible::GetState(aState, aExtraState);
}
*aState = 0;
if (!mDOMNode) {
if (aExtraState) {
*aExtraState = nsIAccessibleStates::EXT_STATE_DEFUNCT;
}
return NS_OK;
}
if (aExtraState)
*aExtraState = 0;
*aState = nsIAccessibleStates::STATE_FOCUSABLE |
nsIAccessibleStates::STATE_SELECTABLE;
nsCOMPtr<nsIDOMXULSelectControlItemElement> listItem (do_QueryInterface(mDOMNode));
if (listItem) {
PRBool isSelected;
listItem->GetSelected(&isSelected);
if (isSelected)
*aState |= nsIAccessibleStates::STATE_SELECTED;
if (gLastFocusedNode == mDOMNode) {
*aState |= nsIAccessibleStates::STATE_FOCUSED;
}
}
return NS_OK;
}
NS_IMETHODIMP nsXULListitemAccessible::GetActionName(PRUint8 aIndex, nsAString& aName)
{
if (aIndex == eAction_Click && mIsCheckbox) {
// check or uncheck
PRUint32 state;
GetState(&state, nsnull);
if (state & nsIAccessibleStates::STATE_CHECKED)
aName.AssignLiteral("uncheck");
else
aName.AssignLiteral("check");
return NS_OK;
}
return NS_ERROR_INVALID_ARG;
}
NS_IMETHODIMP
nsXULListitemAccessible::GetAllowsAnonChildAccessibles(PRBool *aAllowsAnonChildren)
{
// That indicates we should walk anonymous children for listitems
*aAllowsAnonChildren = PR_TRUE;
return NS_OK;
}
nsresult
nsXULListitemAccessible::GetAttributesInternal(nsIPersistentProperties *aAttributes)
{
NS_ENSURE_ARG_POINTER(aAttributes);
// Call base class instead of nsXULMenuAccessible because menu accessible
// has own implementation of group attributes setting which interferes with
// this one.
nsresult rv = nsAccessible::GetAttributesInternal(aAttributes);
NS_ENSURE_SUCCESS(rv, rv);
nsAccUtils::SetAccAttrsForXULSelectControlItem(mDOMNode, aAttributes);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsXULListCellAccessible
nsXULListCellAccessible::
nsXULListCellAccessible(nsIDOMNode* aDOMNode, nsIWeakReference* aShell):
nsHyperTextAccessibleWrap(aDOMNode, aShell)
{
}
NS_IMETHODIMP
nsXULListCellAccessible::GetRole(PRUint32 *aRole)
{
NS_ENSURE_ARG_POINTER(aRole);
*aRole = nsIAccessibleRole::ROLE_CELL;
return NS_OK;
}
/** ------------------------------------------------------ */
/** Finally, the Combobox widgets */
/** ------------------------------------------------------ */
/** ----- nsXULComboboxAccessible ----- */
/** Constructor */
nsXULComboboxAccessible::nsXULComboboxAccessible(nsIDOMNode* aDOMNode, nsIWeakReference* aShell):
nsAccessibleWrap(aDOMNode, aShell)
{
}
NS_IMETHODIMP nsXULComboboxAccessible::Init()
{
nsresult rv = nsAccessibleWrap::Init();
nsXULMenupopupAccessible::GenerateMenu(mDOMNode);
return rv;
}
/** We are a combobox */
NS_IMETHODIMP nsXULComboboxAccessible::GetRole(PRUint32 *aRole)
{
nsCOMPtr<nsIContent> content = do_QueryInterface(mDOMNode);
if (!content) {
return NS_ERROR_FAILURE;
}
if (content->AttrValueIs(kNameSpaceID_None, nsAccessibilityAtoms::type,
NS_LITERAL_STRING("autocomplete"), eIgnoreCase)) {
*aRole = nsIAccessibleRole::ROLE_AUTOCOMPLETE;
} else {
*aRole = nsIAccessibleRole::ROLE_COMBOBOX;
}
return NS_OK;
}
/**
* As a nsComboboxAccessible we can have the following states:
* STATE_FOCUSED
* STATE_FOCUSABLE
* STATE_HASPOPUP
* STATE_EXPANDED
* STATE_COLLAPSED
*/
NS_IMETHODIMP
nsXULComboboxAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
{
// Get focus status from base class
nsresult rv = nsAccessible::GetState(aState, aExtraState);
NS_ENSURE_SUCCESS(rv, rv);
if (!mDOMNode) {
return NS_OK;
}
nsCOMPtr<nsIDOMXULMenuListElement> menuList(do_QueryInterface(mDOMNode));
if (menuList) {
PRBool isOpen;
menuList->GetOpen(&isOpen);
if (isOpen) {
*aState |= nsIAccessibleStates::STATE_EXPANDED;
}
else {
*aState |= nsIAccessibleStates::STATE_COLLAPSED;
}
}
*aState |= nsIAccessibleStates::STATE_HASPOPUP |
nsIAccessibleStates::STATE_FOCUSABLE;
return NS_OK;
}
NS_IMETHODIMP nsXULComboboxAccessible::GetValue(nsAString& _retval)
{
_retval.Truncate();
// The MSAA/ATK value is the option or text shown entered in the combobox
nsCOMPtr<nsIDOMXULMenuListElement> menuList(do_QueryInterface(mDOMNode));
if (menuList) {
return menuList->GetLabel(_retval);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP nsXULComboboxAccessible::GetDescription(nsAString& aDescription)
{
// Use description of currently focused option
aDescription.Truncate();
nsCOMPtr<nsIDOMXULMenuListElement> menuList(do_QueryInterface(mDOMNode));
if (!menuList) {
return NS_ERROR_FAILURE; // Shut down
}
nsCOMPtr<nsIDOMXULSelectControlItemElement> focusedOption;
menuList->GetSelectedItem(getter_AddRefs(focusedOption));
nsCOMPtr<nsIDOMNode> focusedOptionNode(do_QueryInterface(focusedOption));
if (focusedOptionNode) {
nsCOMPtr<nsIAccessibilityService> accService =
do_GetService("@mozilla.org/accessibilityService;1");
NS_ENSURE_TRUE(accService, NS_ERROR_FAILURE);
nsCOMPtr<nsIAccessible> focusedOptionAccessible;
accService->GetAccessibleInWeakShell(focusedOptionNode, mWeakShell,
getter_AddRefs(focusedOptionAccessible));
NS_ENSURE_TRUE(focusedOptionAccessible, NS_ERROR_FAILURE);
return focusedOptionAccessible->GetDescription(aDescription);
}
return NS_OK;
}
NS_IMETHODIMP
nsXULComboboxAccessible::GetAllowsAnonChildAccessibles(PRBool *aAllowsAnonChildren)
{
if (!mDOMNode)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIContent> content = do_QueryInterface(mDOMNode);
if (content->NodeInfo()->Equals(nsAccessibilityAtoms::textbox, kNameSpaceID_XUL) ||
content->AttrValueIs(kNameSpaceID_None, nsAccessibilityAtoms::editable,
nsAccessibilityAtoms::_true, eIgnoreCase)) {
// Both the XUL <textbox type="autocomplete"> and <menulist editable="true"> widgets
// use nsXULComboboxAccessible. We need to walk the anonymous children for these
// so that the entry field is a child
*aAllowsAnonChildren = PR_TRUE;
} else {
// Argument of PR_FALSE indicates we don't walk anonymous children for
// menuitems
*aAllowsAnonChildren = PR_FALSE;
}
return NS_OK;
}
/** Just one action ( click ). */
NS_IMETHODIMP nsXULComboboxAccessible::GetNumActions(PRUint8 *aNumActions)
{
*aNumActions = 1;
return NS_OK;
}
/**
* Programmaticaly toggle the combo box
*/
NS_IMETHODIMP nsXULComboboxAccessible::DoAction(PRUint8 aIndex)
{
if (aIndex != nsXULComboboxAccessible::eAction_Click) {
return NS_ERROR_INVALID_ARG;
}
nsCOMPtr<nsIDOMXULMenuListElement> menuList(do_QueryInterface(mDOMNode));
if (!menuList) {
return NS_ERROR_FAILURE;
}
PRBool isDroppedDown;
menuList->GetOpen(&isDroppedDown);
return menuList->SetOpen(!isDroppedDown);
}
/**
* Our action name is the reverse of our state:
* if we are closed -> open is our name.
* if we are open -> closed is our name.
* Uses the frame to get the state, updated on every click
*/
NS_IMETHODIMP nsXULComboboxAccessible::GetActionName(PRUint8 aIndex, nsAString& aName)
{
if (aIndex != nsXULComboboxAccessible::eAction_Click) {
return NS_ERROR_INVALID_ARG;
}
nsCOMPtr<nsIDOMXULMenuListElement> menuList(do_QueryInterface(mDOMNode));
if (!menuList) {
return NS_ERROR_FAILURE;
}
PRBool isDroppedDown;
menuList->GetOpen(&isDroppedDown);
if (isDroppedDown)
aName.AssignLiteral("close");
else
aName.AssignLiteral("open");
return NS_OK;
}
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