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/*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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 "History.h"
#include "Frame.h"
#include "FrameLoader.h"
namespace WebCore {
History::History(Frame* frame)
: m_frame(frame)
{
}
Frame* History::frame() const
{
return m_frame;
}
void History::disconnectFrame()
{
m_frame = 0;
}
unsigned History::length() const
{
if (!m_frame)
return 0;
return m_frame->loader()->getHistoryLength();
}
void History::back()
{
if (!m_frame)
return;
m_frame->loader()->scheduleHistoryNavigation(-1);
}
void History::forward()
{
if (!m_frame)
return;
m_frame->loader()->scheduleHistoryNavigation(1);
}
void History::go(int distance)
{
if (!m_frame)
return;
m_frame->loader()->scheduleHistoryNavigation(distance);
}
} // namespace WebCore
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