--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/rendering/RenderContainer.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2001 Antti Koivisto (koivisto@kde.org)
+ * Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef RenderContainer_h
+#define RenderContainer_h
+
+#include "RenderBox.h"
+
+namespace WebCore {
+
+// Base class for rendering objects that can have children.
+class RenderContainer : public RenderBox {
+public:
+    RenderContainer(Node*);
+    virtual ~RenderContainer();
+
+    virtual RenderObject* firstChild() const { return m_firstChild; }
+    virtual RenderObject* lastChild() const { return m_lastChild; }
+
+    virtual bool canHaveChildren() const;
+    virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);
+    virtual void removeChild(RenderObject*);
+
+    virtual void destroy();
+    void destroyLeftoverChildren();
+
+    virtual RenderObject* removeChildNode(RenderObject*, bool fullRemove = true);
+    virtual void appendChildNode(RenderObject*, bool fullAppend = true);
+    virtual void insertChildNode(RenderObject* child, RenderObject* before, bool fullInsert = true);
+    
+    // Designed for speed.  Don't waste time doing a bunch of work like layer updating and repainting when we know that our
+    // change in parentage is not going to affect anything.
+    virtual void moveChildNode(RenderObject* child) { appendChildNode(child->parent()->removeChildNode(child, false), false); }
+    
+    virtual void layout();
+    virtual void calcPrefWidths() { setPrefWidthsDirty(false); }
+
+    virtual void removeLeftoverAnonymousBlock(RenderBlock* child);
+
+    RenderObject* beforeAfterContainer(RenderStyle::PseudoId);
+    virtual void updateBeforeAfterContent(RenderStyle::PseudoId);
+    void updateBeforeAfterContentForContainer(RenderStyle::PseudoId, RenderContainer*);
+    bool isAfterContent(RenderObject* child) const;
+
+    virtual VisiblePosition positionForCoordinates(int x, int y);
+
+    virtual void addLineBoxRects(Vector<IntRect>&, unsigned startOffset = 0, unsigned endOffset = UINT_MAX);
+
+private:
+    RenderObject* m_firstChild;
+    RenderObject* m_lastChild;
+};
+
+} // namespace WebCore
+
+#endif // RenderContainer_h