605 lines
16 KiB
C++
605 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Sun Microsystems, Inc.
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* Portions created by Sun Microsystems are Copyright (C) 2002 Sun
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* Microsystems, Inc. All Rights Reserved.
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*
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* Original Author: Pete Zha (pete.zha@sun.com)
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*
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* Contributor(s):
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* Kyle Yuan (kyle.yuan@sun.com)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsHTMLTableAccessibleWrap.h"
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#include "nsIAccessibilityService.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMHTMLCollection.h"
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#include "nsIDOMHTMLTableCaptionElem.h"
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#include "nsIDOMHTMLTableCellElement.h"
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#include "nsIDOMHTMLTableElement.h"
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#include "nsIDOMHTMLTableRowElement.h"
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#include "nsIDOMHTMLTableSectionElem.h"
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#include "nsIDocument.h"
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#include "nsIPresShell.h"
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#include "nsIServiceManager.h"
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#include "nsITableLayout.h"
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// --------------------------------------------------------
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// nsHTMLTableCellAccessibleWrap Accessible
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// --------------------------------------------------------
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NS_IMPL_ISUPPORTS_INHERITED2(nsHTMLTableCellAccessibleWrap, nsHTMLTableCellAccessible, nsIAccessibleText, nsIAccessibleHyperText)
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nsHTMLTableCellAccessibleWrap::nsHTMLTableCellAccessibleWrap(nsIDOMNode* aDomNode, nsIWeakReference* aShell):
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nsHTMLTableCellAccessible(aDomNode, aShell), nsAccessibleHyperText(aDomNode, aShell)
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{
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}
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NS_IMETHODIMP nsHTMLTableCellAccessibleWrap::Shutdown()
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{
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nsAccessibleHyperText::Shutdown();
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return nsHTMLTableCellAccessible::Shutdown();
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}
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// --------------------------------------------------------
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// nsHTMLTableAccessibleWrap Accessible
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// --------------------------------------------------------
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NS_IMPL_ISUPPORTS_INHERITED1(nsHTMLTableAccessibleWrap, nsHTMLTableAccessible, nsIAccessibleTable)
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nsHTMLTableAccessibleWrap::nsHTMLTableAccessibleWrap(nsIDOMNode* aDomNode, nsIWeakReference* aShell):
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nsHTMLTableAccessible(aDomNode, aShell)
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{
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetCaption(nsIAccessible **aCaption)
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{
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*aCaption = nsnull;
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMHTMLTableElement> table(do_QueryInterface(mDOMNode));
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NS_ENSURE_TRUE(table, NS_ERROR_FAILURE);
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nsCOMPtr<nsIDOMHTMLTableCaptionElement> caption;
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rv = table->GetCaption(getter_AddRefs(caption));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMNode> captionNode(do_QueryInterface(caption));
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NS_ENSURE_TRUE(captionNode, NS_ERROR_FAILURE);
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nsCOMPtr<nsIAccessibilityService>
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accService(do_GetService("@mozilla.org/accessibilityService;1"));
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NS_ENSURE_TRUE(accService, NS_ERROR_FAILURE);
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accService->GetCachedAccessible(captionNode, mWeakShell, aCaption);
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if (*aCaption)
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return NS_OK;
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return accService->CreateHTMLTableCaptionAccessible(captionNode, aCaption);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::SetCaption(nsIAccessible *aCaption)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMHTMLTableElement> table(do_QueryInterface(mDOMNode));
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NS_ENSURE_TRUE(table, NS_ERROR_FAILURE);
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nsCOMPtr<nsIAccessNode> accessNode(do_QueryInterface(aCaption));
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NS_ASSERTION(accessNode, "Unable to QI to nsIAccessNode");
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nsCOMPtr<nsIDOMNode> domNode;
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rv = accessNode->GetDOMNode(getter_AddRefs(domNode));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMNode> newDOMNode;
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rv = domNode->CloneNode(PR_TRUE, getter_AddRefs(newDOMNode));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMHTMLTableCaptionElement>
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captionElement(do_QueryInterface(newDOMNode));
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NS_ENSURE_TRUE(captionElement, NS_ERROR_FAILURE);
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return table->SetCaption(captionElement);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetSummary(nsAString &aSummary)
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{
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nsCOMPtr<nsIDOMHTMLTableElement> table(do_QueryInterface(mDOMNode));
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NS_ENSURE_TRUE(table, NS_ERROR_FAILURE);
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return table->GetSummary(aSummary);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::SetSummary(const nsAString &aSummary)
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{
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nsCOMPtr<nsIDOMHTMLTableElement> table(do_QueryInterface(mDOMNode));
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NS_ENSURE_TRUE(table, NS_ERROR_FAILURE);
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return table->SetSummary(aSummary);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetColumns(PRInt32 *aColumns)
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{
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nsITableLayout *tableLayout;
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nsresult rv = GetTableLayout(&tableLayout);
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NS_ENSURE_SUCCESS(rv, rv);
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PRInt32 rows;
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return tableLayout->GetTableSize(rows, *aColumns);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetColumnHeader(nsIAccessibleTable **aColumnHeader)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMHTMLTableElement> table(do_QueryInterface(mDOMNode));
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NS_ENSURE_TRUE(table, NS_ERROR_FAILURE);
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nsCOMPtr<nsIDOMHTMLTableSectionElement> section;
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rv = table->GetTHead(getter_AddRefs(section));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIAccessibilityService>
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accService(do_GetService("@mozilla.org/accessibilityService;1"));
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NS_ENSURE_TRUE(accService, NS_ERROR_FAILURE);
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nsCOMPtr<nsIAccessible> accHead;
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nsCOMPtr<nsIDOMNode> sectionNode(do_QueryInterface(section));
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if (sectionNode) {
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rv = accService->GetCachedAccessible(sectionNode, mWeakShell,
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getter_AddRefs(accHead));
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}
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if (!accHead) {
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rv = accService->CreateHTMLTableHeadAccessible(section,
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getter_AddRefs(accHead));
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}
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIAccessibleTable> accTableHead(do_QueryInterface(accHead));
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NS_ENSURE_TRUE(accTableHead, NS_ERROR_FAILURE);
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*aColumnHeader = accTableHead;
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NS_IF_ADDREF(*aColumnHeader);
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetRows(PRInt32 *aRows)
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{
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nsITableLayout *tableLayout;
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nsresult rv = GetTableLayout(&tableLayout);
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NS_ENSURE_SUCCESS(rv, rv);
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PRInt32 columns;
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return tableLayout->GetTableSize(*aRows, columns);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetRowHeader(nsIAccessibleTable **aRowHeader)
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{
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// Can not implement because there is no row header in html table
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetSelectedColumns(PRUint32 *aNumColumns,
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PRInt32 **aColumns)
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{
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nsresult rv = NS_OK;
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PRInt32 columnCount;
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rv = GetColumns(&columnCount);
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NS_ENSURE_SUCCESS(rv, rv);
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PRBool *states = new PRBool[columnCount];
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NS_ENSURE_TRUE(states, NS_ERROR_OUT_OF_MEMORY);
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*aNumColumns = 0;
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PRInt32 index;
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for (index = 0; index < columnCount; index++) {
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rv = IsColumnSelected(index, &states[index]);
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NS_ENSURE_SUCCESS(rv, rv);
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if (states[index]) {
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(*aNumColumns)++;
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}
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}
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PRInt32 *outArray = (PRInt32 *)nsMemory::Alloc((*aNumColumns) * sizeof(PRInt32));
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if (!outArray) {
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delete []states;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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PRInt32 curr = 0;
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for (index = 0; index < columnCount; index++) {
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if (states[index]) {
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outArray[curr++] = index;
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}
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}
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delete []states;
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*aColumns = outArray;
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetSelectedRows(PRUint32 *aNumRows, PRInt32 **aRows)
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{
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nsresult rv = NS_OK;
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PRInt32 rowCount;
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rv = GetRows(&rowCount);
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NS_ENSURE_SUCCESS(rv, rv);
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PRBool *states = new PRBool[rowCount];
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NS_ENSURE_TRUE(states, NS_ERROR_OUT_OF_MEMORY);
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*aNumRows = 0;
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PRInt32 index;
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for (index = 0; index < rowCount; index++) {
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rv = IsRowSelected(index, &states[index]);
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NS_ENSURE_SUCCESS(rv, rv);
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if (states[index]) {
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(*aNumRows)++;
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}
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}
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PRInt32 *outArray = (PRInt32 *)nsMemory::Alloc((*aNumRows) * sizeof(PRInt32));
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if (!outArray) {
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delete []states;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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PRInt32 curr = 0;
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for (index = 0; index < rowCount; index++) {
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if (states[index]) {
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outArray[curr++] = index;
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}
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}
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delete []states;
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*aRows = outArray;
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::CellRefAt(PRInt32 aRow, PRInt32 aColumn,
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nsIAccessible **aTableCellAccessible)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMElement> cellElement;
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rv = GetCellAt(aRow, aColumn, *getter_AddRefs(cellElement));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIAccessibilityService>
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accService(do_GetService("@mozilla.org/accessibilityService;1"));
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NS_ENSURE_TRUE(accService, NS_ERROR_FAILURE);
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return accService->GetAccessibleInWeakShell(cellElement, mWeakShell,
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aTableCellAccessible);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetIndexAt(PRInt32 aRow, PRInt32 aColumn,
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PRInt32 *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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nsresult rv = NS_OK;
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PRInt32 columns;
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rv = GetColumns(&columns);
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NS_ENSURE_SUCCESS(rv, rv);
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*_retval = aRow * columns + aColumn;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetColumnAtIndex(PRInt32 aIndex, PRInt32 *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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nsresult rv = NS_OK;
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PRInt32 columns;
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rv = GetColumns(&columns);
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NS_ENSURE_SUCCESS(rv, rv);
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*_retval = aIndex % columns;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetRowAtIndex(PRInt32 aIndex, PRInt32 *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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nsresult rv = NS_OK;
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PRInt32 columns;
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rv = GetColumns(&columns);
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NS_ENSURE_SUCCESS(rv, rv);
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*_retval = aIndex / columns;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetColumnExtentAt(PRInt32 aRow, PRInt32 aColumn,
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PRInt32 *_retval)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMElement> domElement;
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rv = GetCellAt(aRow, aColumn, *getter_AddRefs(domElement));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMHTMLTableCellElement> cell(do_QueryInterface(domElement));
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NS_ENSURE_TRUE(cell, NS_ERROR_FAILURE);
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return cell->GetColSpan(_retval);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetRowExtentAt(PRInt32 aRow, PRInt32 aColumn,
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PRInt32 *_retval)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMElement> domElement;
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rv = GetCellAt(aRow, aColumn, *getter_AddRefs(domElement));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMHTMLTableCellElement> cell(do_QueryInterface(domElement));
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NS_ENSURE_TRUE(cell, NS_ERROR_FAILURE);
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return cell->GetRowSpan(_retval);
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetColumnDescription(PRInt32 aColumn, nsAString &_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::GetRowDescription(PRInt32 aRow, nsAString &_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::IsColumnSelected(PRInt32 aColumn, PRBool *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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nsresult rv = NS_OK;
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PRInt32 rows;
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rv = GetRows(&rows);
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NS_ENSURE_SUCCESS(rv, rv);
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for (PRInt32 index = 0; index < rows; index++) {
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rv = IsCellSelected(index, aColumn, _retval);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!*_retval) {
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break;
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::IsRowSelected(PRInt32 aRow, PRBool *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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nsresult rv = NS_OK;
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PRInt32 columns;
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rv = GetColumns(&columns);
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NS_ENSURE_SUCCESS(rv, rv);
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for (PRInt32 index = 0; index < columns; index++) {
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rv = IsCellSelected(aRow, index, _retval);
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NS_ENSURE_SUCCESS(rv, rv);
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if (!*_retval) {
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break;
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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nsHTMLTableAccessibleWrap::IsCellSelected(PRInt32 aRow, PRInt32 aColumn,
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PRBool *_retval)
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{
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nsITableLayout *tableLayout;
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nsresult rv = GetTableLayout(&tableLayout);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMElement> domElement;
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PRInt32 startRowIndex = 0, startColIndex = 0,
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rowSpan, colSpan, actualRowSpan, actualColSpan;
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return tableLayout->GetCellDataAt(aRow, aColumn,
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*getter_AddRefs(domElement),
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startRowIndex, startColIndex, rowSpan,
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colSpan, actualRowSpan, actualColSpan,
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*_retval);
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}
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nsresult
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nsHTMLTableAccessibleWrap::GetTableNode(nsIDOMNode **_retval)
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{
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMHTMLTableElement> table(do_QueryInterface(mDOMNode));
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if (table) {
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*_retval = table;
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NS_IF_ADDREF(*_retval);
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return rv;
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}
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nsCOMPtr<nsIDOMHTMLTableSectionElement> section(do_QueryInterface(mDOMNode));
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if (section) {
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nsCOMPtr<nsIDOMNode> parent;
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rv = section->GetParentNode(getter_AddRefs(parent));
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NS_ENSURE_SUCCESS(rv, rv);
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*_retval = parent;
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NS_IF_ADDREF(*_retval);
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return rv;
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}
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return NS_ERROR_FAILURE;
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}
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nsresult
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nsHTMLTableAccessibleWrap::GetTableLayout(nsITableLayout **aLayoutObject)
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{
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*aLayoutObject = nsnull;
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nsresult rv = NS_OK;
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nsCOMPtr<nsIDOMNode> tableNode;
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rv = GetTableNode(getter_AddRefs(tableNode));
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIContent> content(do_QueryInterface(tableNode));
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NS_ENSURE_TRUE(content, NS_ERROR_FAILURE);
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nsIPresShell *presShell = content->GetDocument()->GetShellAt(0);
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nsCOMPtr<nsISupports> layoutObject;
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rv = presShell->GetLayoutObjectFor(content, getter_AddRefs(layoutObject));
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NS_ENSURE_SUCCESS(rv, rv);
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return CallQueryInterface(layoutObject, aLayoutObject);
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}
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nsresult
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nsHTMLTableAccessibleWrap::GetCellAt(PRInt32 aRowIndex,
|
|
PRInt32 aColIndex,
|
|
nsIDOMElement* &aCell)
|
|
{
|
|
PRInt32 startRowIndex = 0, startColIndex = 0,
|
|
rowSpan, colSpan, actualRowSpan, actualColSpan;
|
|
PRBool isSelected;
|
|
|
|
nsITableLayout *tableLayout;
|
|
nsresult rv = GetTableLayout(&tableLayout);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return tableLayout->GetCellDataAt(aRowIndex, aColIndex, aCell,
|
|
startRowIndex, startColIndex,
|
|
rowSpan, colSpan,
|
|
actualRowSpan, actualColSpan,
|
|
isSelected);
|
|
}
|
|
|
|
// --------------------------------------------------------
|
|
// nsHTMLTableHeadAccessible Accessible
|
|
// --------------------------------------------------------
|
|
NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLTableHeadAccessible, nsHTMLTableAccessibleWrap)
|
|
|
|
nsHTMLTableHeadAccessible::nsHTMLTableHeadAccessible(nsIDOMNode *aDomNode, nsIWeakReference *aShell):
|
|
nsHTMLTableAccessibleWrap(aDomNode, aShell)
|
|
{
|
|
Init(); // Make sure this generated accessible of the table is cached
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::GetRole(PRUint32 *aResult)
|
|
{
|
|
*aResult = ROLE_COLUMNHEADER;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::GetCaption(nsIAccessible **aCaption)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::SetCaption(nsIAccessible *aCaption)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::GetSummary(nsAString &aSummary)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::SetSummary(const nsAString &aSummary)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::GetColumnHeader(nsIAccessibleTable **aColumnHeader)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLTableHeadAccessible::GetRows(PRInt32 *aRows)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
nsCOMPtr<nsIDOMHTMLTableSectionElement> head(do_QueryInterface(mDOMNode));
|
|
NS_ENSURE_TRUE(head, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsIDOMHTMLCollection> rows;
|
|
rv = head->GetRows(getter_AddRefs(rows));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return rows->GetLength((PRUint32 *)aRows);
|
|
}
|