Implementation of CSS3 nav-up/down/left/right properties from CSS3 UI.

Source/core/rendering/style/StyleNavigationData.cpp

Index: Source/core/rendering/style/StyleNavigationData.cpp
diff --git a/Source/core/rendering/style/StyleNavigationData.cpp b/Source/core/rendering/style/StyleNavigationData.cpp
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+++ b/Source/core/rendering/style/StyleNavigationData.cpp
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+/*
+ * Copyright (C) 2014 Opera Software ASA. 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.
+ *
+ */
+
+#include "config.h"
+
+#include "core/rendering/style/StyleNavigationData.h"
+
+#include "wtf/Assertions.h"
+
+namespace blink {
+
+StyleNavigationData::StyleNavigationData()
+{
+}
+
+StyleNavigationData::StyleNavigationData(const StyleNavigationData &o)
+    : m_up(o.m_up)
+    , m_down(o.m_down)
+    , m_left(o.m_left)
+    , m_right(o.m_right)
+{
+}
+
+void StyleNavigationData::setProperty(StyleNavigationData::NavigationDirection direction, const StyleNavigationValue& value)
+{
+    switch (direction) {
+    case NavigationDown:
+        setDown(value);
+        return;
+    case NavigationLeft:
+        setLeft(value);
+        return;
+    case NavigationRight:
+        setRight(value);
+        return;
+    case NavigationUp:
+        setUp(value);
+        return;
+    default:
+        ASSERT_NOT_REACHED();
+    }
+}
+
+} // namespace blink