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/*
* 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/)
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* 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
#include "IntSize.h"
#include <wtf/Forward.h>
namespace WebCore {
class Document;
enum ViewportErrorCode {
UnrecognizedViewportArgumentKeyError,
UnrecognizedViewportArgumentValueError,
TruncatedViewportArgumentValueError,
MaximumScaleTooLargeError,
TargetDensityDpiTooSmallOrLargeError
};
struct ViewportAttributes {
IntSize layoutSize;
float devicePixelRatio;
float initialScale;
float minimumScale;
float maximumScale;
float userScalable;
};
struct ViewportArguments {
enum {
ValueAuto = -1,
ValueDesktopWidth = -2,
ValueDeviceWidth = -3,
ValueDeviceHeight = -4,
ValueDeviceDPI = -5,
ValueLowDPI = -6,
ValueMediumDPI = -7,
ValueHighDPI = -8
};
ViewportArguments()
: initialScale(ValueAuto)
, minimumScale(ValueAuto)
, maximumScale(ValueAuto)
, width(ValueAuto)
, height(ValueAuto)
, targetDensityDpi(ValueAuto)
, userScalable(ValueAuto)
{
}
float initialScale;
float minimumScale;
float maximumScale;
float width;
float height;
float targetDensityDpi;
float userScalable;
bool operator==(const ViewportArguments& other) const
{
return initialScale == other.initialScale
&& minimumScale == other.minimumScale
&& maximumScale == other.maximumScale
&& width == other.width
&& height == other.height
&& targetDensityDpi == other.targetDensityDpi
&& userScalable == other.userScalable;
}
};
ViewportAttributes computeViewportAttributes(ViewportArguments args, int desktopWidth, int deviceWidth, int deviceHeight, int deviceDPI, IntSize visibleViewport);
void setViewportFeature(const String& keyString, const String& valueString, Document*, void* data);
void reportViewportWarning(Document*, ViewportErrorCode, const String& replacement1, const String& replacement2);
} // namespace WebCore
#endif // ViewportArguments_h
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