WebCore/accessibility/AccessibilityTableRow.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/accessibility/AccessibilityTableRow.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "AccessibilityTableRow.h"
+
+#include "AXObjectCache.h"
+#include "AccessibilityTableCell.h"
+#include "HTMLNames.h"
+#include "HTMLTableRowElement.h"
+#include "RenderObject.h"
+#include "RenderTableCell.h"
+#include "RenderTableRow.h"
+
+using namespace std;
+
+namespace WebCore {
+    
+using namespace HTMLNames;
+    
+AccessibilityTableRow::AccessibilityTableRow(RenderObject* renderer)
+    : AccessibilityRenderObject(renderer)
+{
+}
+
+AccessibilityTableRow::~AccessibilityTableRow()
+{
+}
+
+PassRefPtr<AccessibilityTableRow> AccessibilityTableRow::create(RenderObject* renderer)
+{
+    return adoptRef(new AccessibilityTableRow(renderer));
+}
+
+AccessibilityRole AccessibilityTableRow::roleValue() const
+{
+    if (!isTableRow())
+        return AccessibilityRenderObject::roleValue();
+    
+    return RowRole;
+}
+
+bool AccessibilityTableRow::isTableRow() const
+{
+    AccessibilityObject* table = parentTable();
+    if (!table || !table->isDataTable())
+        return false;
+    
+    return true;
+}
+    
+bool AccessibilityTableRow::accessibilityIsIgnored() const
+{    
+    AccessibilityObjectInclusion decision = accessibilityIsIgnoredBase();
+    if (decision == IncludeObject)
+        return false;
+    if (decision == IgnoreObject)
+        return true;
+    
+    if (!isTableRow())
+        return AccessibilityRenderObject::accessibilityIsIgnored();
+
+    return false;
+}
+    
+AccessibilityObject* AccessibilityTableRow::parentTable() const
+{
+    if (!m_renderer || !m_renderer->isTableRow())
+        return 0;
+    
+    return axObjectCache()->getOrCreate(toRenderTableRow(m_renderer)->table());
+}
+    
+AccessibilityObject* AccessibilityTableRow::headerObject()
+{
+    if (!m_renderer || !m_renderer->isTableRow())
+        return 0;
+    
+    AccessibilityChildrenVector rowChildren = children();
+    if (!rowChildren.size())
+        return 0;
+    
+    // check the first element in the row to see if it is a TH element
+    AccessibilityObject* cell = rowChildren[0].get();
+    if (!cell->isTableCell())
+        return 0;
+    
+    RenderObject* cellRenderer = static_cast<AccessibilityTableCell*>(cell)->renderer();
+    if (!cellRenderer)
+        return 0;
+    
+    Node* cellNode = cellRenderer->node();
+    if (!cellNode || !cellNode->hasTagName(thTag))
+        return 0;
+    
+    return cell;
+}
+    
+} // namespace WebCore