Source/WebCore/rendering/ScrollAlignment.cpp

/*
 * Copyright (C) 2006, 2007, 2008, 2016 Apple Inc. All rights reserved.
 *
 * Portions are Copyright (C) 1998 Netscape Communications Corporation.
 *
 * Other contributors:
 *   Robert O'Callahan <roc+@cs.cmu.edu>
 *   David Baron <dbaron@fas.harvard.edu>
 *   Christian Biesinger <cbiesinger@web.de>
 *   Randall Jesup <rjesup@wgate.com>
 *   Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
 *   Josh Soref <timeless@mac.com>
 *   Boris Zbarsky <bzbarsky@mit.edu>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Alternatively, the contents of this file may be used under the terms
 * of either the Mozilla Public License Version 1.1, found at
 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
 * (the "GPL"), in which case the provisions of the MPL or the GPL are
 * applicable instead of those above.  If you wish to allow use of your
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 */

#include "config.h"
#include "ScrollAlignment.h"

#include "Logging.h"
#include <wtf/text/TextStream.h>

namespace WebCore {

const ScrollAlignment ScrollAlignment::alignCenterIfNotVisible = { Behavior::NoScroll, Behavior::AlignCenter, Behavior::NoScroll };
const ScrollAlignment ScrollAlignment::alignToEdgeIfNotVisible = { Behavior::NoScroll, Behavior::AlignToClosestEdge, Behavior::NoScroll };
const ScrollAlignment ScrollAlignment::alignCenterIfNeeded = { Behavior::NoScroll, Behavior::AlignCenter, Behavior::AlignToClosestEdge };
WEBCORE_EXPORT const ScrollAlignment ScrollAlignment::alignToEdgeIfNeeded = { Behavior::NoScroll, Behavior::AlignToClosestEdge, Behavior::AlignToClosestEdge };
WEBCORE_EXPORT const ScrollAlignment ScrollAlignment::alignCenterAlways = { Behavior::AlignCenter, Behavior::AlignCenter, Behavior::AlignCenter };
const ScrollAlignment ScrollAlignment::alignTopAlways = { Behavior::AlignTop, Behavior::AlignTop, Behavior::AlignTop };
const ScrollAlignment ScrollAlignment::alignRightAlways = { Behavior::AlignRight, Behavior::AlignRight, Behavior::AlignRight };
const ScrollAlignment ScrollAlignment::alignLeftAlways = { Behavior::AlignLeft, Behavior::AlignLeft, Behavior::AlignLeft };
const ScrollAlignment ScrollAlignment::alignBottomAlways = { Behavior::AlignBottom, Behavior::AlignBottom, Behavior::AlignBottom };
    
TextStream& operator<<(TextStream& ts, ScrollAlignment::Behavior b)
{
    switch (b) {
    case ScrollAlignment::Behavior::NoScroll:
        return ts << "NoScroll";
    case ScrollAlignment::Behavior::AlignCenter:
        return ts << "AlignCenter";
    case ScrollAlignment::Behavior::AlignTop:
        return ts << "AlignTop";
    case ScrollAlignment::Behavior::AlignBottom:
        return ts << "AlignBottom";
    case ScrollAlignment::Behavior::AlignLeft:
        return ts << "AlignLeft";
    case ScrollAlignment::Behavior::AlignRight:
        return ts << "AlignRight";
    case ScrollAlignment::Behavior::AlignToClosestEdge:
        return ts << "AlignToClosestEdge";
    }
    return ts;
}
    
TextStream& operator<<(TextStream& ts, const ScrollAlignment& s)
{
    return ts << "ScrollAlignment: visible: " << s.m_rectVisible << " hidden: " << s.m_rectHidden << " partial: " << s.m_rectPartial;
}

}; // namespace WebCore