/*

 * Copyright (C) 2007 Apple Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer. 

 * 2.  Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include "config.h"

#include "DOMSelection.h"

#include "Frame.h"

#include "Node.h"

#include "PlatformString.h"

#include "Range.h"

#include "SelectionController.h"

namespace WebCore {

DOMSelection::DOMSelection(Frame* frame)

    : m_frame(frame)

{

}

Frame* DOMSelection::frame() const

{

    return m_frame;

}

void DOMSelection::disconnectFrame()

{

    m_frame = 0;

}

Node* DOMSelection::anchorNode() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->anchorNode();

}

Node* DOMSelection::baseNode() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->baseNode();

}

int DOMSelection::anchorOffset() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->anchorOffset();

}

int DOMSelection::baseOffset() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->baseOffset();

}

Node* DOMSelection::focusNode() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->focusNode();

}

Node* DOMSelection::extentNode() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->extentNode();

}

int DOMSelection::focusOffset() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->focusOffset();

}

int DOMSelection::extentOffset() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->extentOffset();

}

bool DOMSelection::isCollapsed() const

{

    if (!m_frame)

        return false;

    return m_frame->selectionController()->isCollapsed();

}

String DOMSelection::type() const

{

    if (!m_frame)

        return String();

    return m_frame->selectionController()->type();

}

int DOMSelection::rangeCount() const

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->rangeCount();

}

void DOMSelection::collapse(Node* node, int offset, ExceptionCode& ec)

{

    if (!m_frame)

        return;

    m_frame->selectionController()->collapse(node, offset, ec);

}

void DOMSelection::collapseToEnd()

{

    if (!m_frame)

        return;

    m_frame->selectionController()->collapseToEnd();

}

void DOMSelection::collapseToStart()

{

    if (!m_frame)

        return;

    m_frame->selectionController()->collapseToStart();

}

void DOMSelection::empty()

{

    if (!m_frame)

        return;

    m_frame->selectionController()->empty();

}

void DOMSelection::setBaseAndExtent(Node* baseNode, int baseOffset, Node* extentNode, int extentOffset, ExceptionCode& ec)

{

    if (!m_frame)

        return;

    m_frame->selectionController()->setBaseAndExtent(baseNode, baseOffset, extentNode, extentOffset, ec);

}

void DOMSelection::setPosition(Node* node, int offset, ExceptionCode& ec)

{

    if (!m_frame)

        return;

    m_frame->selectionController()->setPosition(node, offset, ec);

}

void DOMSelection::setPosition(Node* node, ExceptionCode& ec)

{

    if (!m_frame)

        return;

    m_frame->selectionController()->setPosition(node, 0, ec);

}

void DOMSelection::modify(const String& alter, const String& direction, const String& granularity)

{

    if (!m_frame)

        return;

    m_frame->selectionController()->modify(alter, direction, granularity);

}

PassRefPtr<Range> DOMSelection::getRangeAt(int index, ExceptionCode& ec)

{

    if (!m_frame)

        return 0;

    return m_frame->selectionController()->getRangeAt(index, ec);

}

void DOMSelection::removeAllRanges()

{

    if (!m_frame)

        return;

    m_frame->selectionController()->removeAllRanges();

}

void DOMSelection::addRange(Range* range)

{

    if (!m_frame)

        return;

    m_frame->selectionController()->addRange(range);

}

String DOMSelection::toString()

{

    if (!m_frame)

        return String();

    return m_frame->selectionController()->toString();

}

} // namespace WebCore