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/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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 "CSSToLengthConversionData.h"
#include "RenderStyle.h"
#include "RenderView.h"
namespace WebCore {
float CSSToLengthConversionData::zoom() const
{
if (m_useEffectiveZoom)
return m_style ? m_style->effectiveZoom() : 1;
return m_zoom;
}
double CSSToLengthConversionData::viewportWidthFactor() const
{
if (m_style && !m_computingFontSize)
m_style->setHasViewportUnits();
if (!m_renderView)
return 0;
return m_renderView->viewportSizeForCSSViewportUnits().width() / 100.0;
}
double CSSToLengthConversionData::viewportHeightFactor() const
{
if (m_style && !m_computingFontSize)
m_style->setHasViewportUnits();
if (!m_renderView)
return 0;
return m_renderView->viewportSizeForCSSViewportUnits().height() / 100.0;
}
double CSSToLengthConversionData::viewportMinFactor() const
{
if (m_style && !m_computingFontSize)
m_style->setHasViewportUnits();
if (!m_renderView)
return 0;
IntSize viewportSizeForCSSViewportUnits = m_renderView->viewportSizeForCSSViewportUnits();
return std::min(viewportSizeForCSSViewportUnits.width(), viewportSizeForCSSViewportUnits.height()) / 100.0;
}
double CSSToLengthConversionData::viewportMaxFactor() const
{
if (m_style && !m_computingFontSize)
m_style->setHasViewportUnits();
if (!m_renderView)
return 0;
IntSize viewportSizeForCSSViewportUnits = m_renderView->viewportSizeForCSSViewportUnits();
return std::max(viewportSizeForCSSViewportUnits.width(), viewportSizeForCSSViewportUnits.height()) / 100.0;
}
} // namespace WebCore
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