--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/HTMLTableRowsCollection.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,167 @@
+/*
+ * 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 "HTMLTableRowsCollection.h"
+
+#include "HTMLNames.h"
+#include "HTMLTableElement.h"
+#include "HTMLTableRowElement.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+static bool isInHead(Element* row)
+{
+    return row->parent() && static_cast<Element*>(row->parent())->hasLocalName(theadTag);
+}
+
+static bool isInBody(Element* row)
+{
+    return row->parent() && static_cast<Element*>(row->parent())->hasLocalName(tbodyTag);
+}
+
+static bool isInFoot(Element* row)
+{
+    return row->parent() && static_cast<Element*>(row->parent())->hasLocalName(tfootTag);
+}
+
+HTMLTableRowElement* HTMLTableRowsCollection::rowAfter(HTMLTableElement* table, HTMLTableRowElement* previous)
+{
+    Node* child = 0;
+
+    // Start by looking for the next row in this section.
+    // Continue only if there is none.
+    if (previous && previous->parent() != table) {
+        for (child = previous->nextSibling(); child; child = child->nextSibling()) {
+            if (child->hasTagName(trTag))
+                return static_cast<HTMLTableRowElement*>(child);
+        }
+    }
+
+    // If still looking at head sections, find the first row in the next head section.
+    if (!previous)
+        child = table->firstChild();
+    else if (isInHead(previous))
+        child = previous->parent()->nextSibling();
+    for (; child; child = child->nextSibling()) {
+        if (child->hasTagName(theadTag)) {
+            for (Node* grandchild = child->firstChild(); grandchild; grandchild = grandchild->nextSibling()) {
+                if (grandchild->hasTagName(trTag))
+                    return static_cast<HTMLTableRowElement*>(grandchild);
+            }
+        }
+    }
+
+    // If still looking at top level and bodies, find the next row in top level or the first in the next body section.
+    if (!previous || isInHead(previous))
+        child = table->firstChild();
+    else if (previous->parent() == table)
+        child = previous->nextSibling();
+    else if (isInBody(previous))
+        child = previous->parent()->nextSibling();
+    for (; child; child = child->nextSibling()) {
+        if (child->hasTagName(trTag))
+            return static_cast<HTMLTableRowElement*>(child);
+        if (child->hasTagName(tbodyTag)) {
+            for (Node* grandchild = child->firstChild(); grandchild; grandchild = grandchild->nextSibling()) {
+                if (grandchild->hasTagName(trTag))
+                    return static_cast<HTMLTableRowElement*>(grandchild);
+            }
+        }
+    }
+
+    // Find the first row in the next foot section.
+    if (!previous || !isInFoot(previous))
+        child = table->firstChild();
+    else
+        child = previous->parent()->nextSibling();
+    for (; child; child = child->nextSibling()) {
+        if (child->hasTagName(tfootTag)) {
+            for (Node* grandchild = child->firstChild(); grandchild; grandchild = grandchild->nextSibling()) {
+                if (grandchild->hasTagName(trTag))
+                    return static_cast<HTMLTableRowElement*>(grandchild);
+            }
+        }
+    }
+
+    return 0;
+}
+
+HTMLTableRowElement* HTMLTableRowsCollection::lastRow(HTMLTableElement* table)
+{
+    for (Node* child = table->lastChild(); child; child = child->previousSibling()) {
+        if (child->hasTagName(tfootTag)) {
+            for (Node* grandchild = child->lastChild(); grandchild; grandchild = grandchild->previousSibling()) {
+                if (grandchild->hasTagName(trTag))
+                    return static_cast<HTMLTableRowElement*>(grandchild);
+            }
+        }
+    }
+
+    for (Node* child = table->lastChild(); child; child = child->previousSibling()) {
+        if (child->hasTagName(trTag))
+            return static_cast<HTMLTableRowElement*>(child);
+        if (child->hasTagName(tbodyTag)) {
+            for (Node* grandchild = child->lastChild(); grandchild; grandchild = grandchild->previousSibling()) {
+                if (grandchild->hasTagName(trTag))
+                    return static_cast<HTMLTableRowElement*>(grandchild);
+            }
+        }
+    }
+
+    for (Node* child = table->lastChild(); child; child = child->previousSibling()) {
+        if (child->hasTagName(theadTag)) {
+            for (Node* grandchild = child->lastChild(); grandchild; grandchild = grandchild->previousSibling()) {
+                if (grandchild->hasTagName(trTag))
+                    return static_cast<HTMLTableRowElement*>(grandchild);
+            }
+        }
+    }
+
+    return 0;
+}
+
+HTMLTableRowsCollection::HTMLTableRowsCollection(PassRefPtr<HTMLTableElement> table)
+    : HTMLCollection(table, OtherCollection, 0)
+{
+}
+
+PassRefPtr<HTMLTableRowsCollection> HTMLTableRowsCollection::create(PassRefPtr<HTMLTableElement> table)
+{
+    return adoptRef(new HTMLTableRowsCollection(table));
+}
+
+Element* HTMLTableRowsCollection::itemAfter(Element* previous) const
+{
+    ASSERT(!previous || previous->hasLocalName(trTag));
+    return rowAfter(static_cast<HTMLTableElement*>(base()), static_cast<HTMLTableRowElement*>(previous));
+}
+
+}