--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/ViewportArguments.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ *
+ * 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 ViewportArguments_h
+#define ViewportArguments_h
+
+namespace WebCore {
+
+class Document;
+class String;
+
+enum ViewportErrorCode {
+    DeviceWidthShouldBeUsedWarning,
+    DeviceHeightShouldBeUsedWarning,
+    UnrecognizedViewportArgumentError,
+    MaximumScaleTooLargeError
+};
+
+struct ViewportArguments {
+
+    enum { ValueUndefined = -1 };
+
+    ViewportArguments()
+        : initialScale(ValueUndefined)
+        , minimumScale(ValueUndefined)
+        , maximumScale(ValueUndefined)
+        , width(ValueUndefined)
+        , height(ValueUndefined)
+        , userScalable(ValueUndefined)
+    {
+    }
+
+    float initialScale;
+    float minimumScale;
+    float maximumScale;
+    float width;
+    float height;
+
+    float userScalable;
+
+    bool hasCustomArgument() const
+    {
+        return initialScale != ValueUndefined || minimumScale != ValueUndefined || maximumScale != ValueUndefined || width != ValueUndefined || height != ValueUndefined || userScalable != ValueUndefined;
+    }
+};
+
+void setViewportFeature(const String& keyString, const String& valueString, Document*, void* data);
+void reportViewportWarning(Document*, ViewportErrorCode, const String& replacement);
+
+} // namespace WebCore
+
+#endif // ViewportArguments_h