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/*
* Copyright (C) 2012 Adobe Systems Incorporated. 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 THE COPYRIGHT HOLDER "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 HOLDER 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 "ShapeInfo.h"
#if ENABLE(CSS_SHAPES)
#include "LengthFunctions.h"
#include "RenderBlock.h"
#include "RenderBox.h"
#include "RenderImage.h"
#include "RenderRegion.h"
#include "RenderStyle.h"
#include "Shape.h"
namespace WebCore {
bool checkShapeImageOrigin(Document& document, CachedImage& cachedImage)
{
if (cachedImage.isOriginClean(document.securityOrigin()))
return true;
const URL& url = cachedImage.url();
String urlString = url.isNull() ? "''" : url.stringCenterEllipsizedToLength();
document.addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Unsafe attempt to load URL " + urlString + ".");
return false;
}
static LayoutRect getShapeImageRect(const StyleImage& styleImage, const RenderBox& renderBox)
{
if (renderBox.isRenderImage()) {
const RenderImage& renderImage = *toRenderImage(&renderBox);
return renderImage.replacedContentRect(renderBox.intrinsicSize());
}
ASSERT(styleImage.cachedImage());
ASSERT(styleImage.cachedImage()->hasImage());
return LayoutRect(LayoutPoint(), styleImage.cachedImage()->image()->size());
}
template<class RenderType>
const Shape& ShapeInfo<RenderType>::computedShape() const
{
if (Shape* shape = m_shape.get())
return *shape;
WritingMode writingMode = this->writingMode();
Length margin = m_renderer.style().shapeMargin();
Length padding = m_renderer.style().shapePadding();
float shapeImageThreshold = m_renderer.style().shapeImageThreshold();
const ShapeValue* shapeValue = this->shapeValue();
ASSERT(shapeValue);
switch (shapeValue->type()) {
case ShapeValue::Shape:
ASSERT(shapeValue->shape());
m_shape = Shape::createShape(shapeValue->shape(), m_shapeLogicalSize, writingMode, margin, padding);
break;
case ShapeValue::Image: {
ASSERT(shapeValue->image());
const StyleImage& styleImage = *(shapeValue->image());
m_shape = Shape::createRasterShape(styleImage, shapeImageThreshold, getShapeImageRect(styleImage, m_renderer), m_shapeLogicalSize, writingMode, margin, padding);
break;
}
case ShapeValue::Box: {
const RoundedRect& shapeRect = m_renderer.style().getRoundedBorderFor(LayoutRect(LayoutPoint(), m_shapeLogicalSize), &(m_renderer.view()));
m_shape = Shape::createLayoutBoxShape(shapeRect, writingMode, margin, padding);
break;
}
case ShapeValue::Outside:
// Outside should have already resolved to a different shape value
ASSERT_NOT_REACHED();
}
ASSERT(m_shape);
return *m_shape;
}
template<class RenderType>
SegmentList ShapeInfo<RenderType>::computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight) const
{
ASSERT(lineHeight >= 0);
SegmentList segments;
getIntervals((lineTop - logicalTopOffset()), std::min(lineHeight, shapeLogicalBottom() - lineTop), segments);
for (size_t i = 0; i < segments.size(); i++) {
segments[i].logicalLeft += logicalLeftOffset();
segments[i].logicalRight += logicalLeftOffset();
}
return segments;
}
template class ShapeInfo<RenderBlock>;
template class ShapeInfo<RenderBox>;
}
#endif
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