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/*
* Copyright (C) 2006 Apple Inc.
* Copyright (C) 2009 Google, Inc.
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
* Copyright (C) 2020, 2021, 2022 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "RenderSVGForeignObject.h"
#if ENABLE(LAYER_BASED_SVG_ENGINE)
#include "GraphicsContext.h"
#include "HitTestResult.h"
#include "LayoutRepainter.h"
#include "RenderBoxModelObjectInlines.h"
#include "RenderLayer.h"
#include "RenderObject.h"
#include "RenderSVGBlockInlines.h"
#include "RenderSVGResource.h"
#include "RenderView.h"
#include "SVGElementTypeHelpers.h"
#include "SVGForeignObjectElement.h"
#include "SVGRenderSupport.h"
#include "SVGRenderingContext.h"
#include "SVGResourcesCache.h"
#include "TransformState.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/StackStats.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(RenderSVGForeignObject);
RenderSVGForeignObject::RenderSVGForeignObject(SVGForeignObjectElement& element, RenderStyle&& style)
: RenderSVGBlock(element, WTFMove(style))
{
}
RenderSVGForeignObject::~RenderSVGForeignObject() = default;
SVGForeignObjectElement& RenderSVGForeignObject::foreignObjectElement() const
{
return downcast<SVGForeignObjectElement>(RenderSVGBlock::graphicsElement());
}
void RenderSVGForeignObject::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (!shouldPaintSVGRenderer(paintInfo))
return;
if (paintInfo.phase == PaintPhase::ClippingMask) {
// FIXME: [LBSE] Upstream clipping support
// SVGRenderSupport::paintSVGClippingMask(*this, paintInfo);
return;
}
auto adjustedPaintOffset = paintOffset + location();
if (paintInfo.phase == PaintPhase::Mask) {
// FIXME: [LBSE] Upstream masking support
// SVGRenderSupport::paintSVGMask(*this, paintInfo, adjustedPaintOffset);
return;
}
GraphicsContextStateSaver stateSaver(paintInfo.context());
auto coordinateSystemOriginTranslation = adjustedPaintOffset - flooredLayoutPoint(objectBoundingBox().location());
paintInfo.context().translate(coordinateSystemOriginTranslation.width(), coordinateSystemOriginTranslation.height());
RenderSVGBlock::paint(paintInfo, paintOffset);
}
void RenderSVGForeignObject::updateLogicalWidth()
{
setWidth(enclosingLayoutRect(m_viewport).width());
}
RenderBox::LogicalExtentComputedValues RenderSVGForeignObject::computeLogicalHeight(LayoutUnit, LayoutUnit logicalTop) const
{
return { enclosingLayoutRect(m_viewport).height(), logicalTop, ComputedMarginValues() };
}
void RenderSVGForeignObject::layout()
{
StackStats::LayoutCheckPoint layoutCheckPoint;
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
auto& useForeignObjectElement = foreignObjectElement();
SVGLengthContext lengthContext(&useForeignObjectElement);
// Cache viewport boundaries
auto x = useForeignObjectElement.x().value(lengthContext);
auto y = useForeignObjectElement.y().value(lengthContext);
auto width = useForeignObjectElement.width().value(lengthContext);
auto height = useForeignObjectElement.height().value(lengthContext);
m_viewport = { 0, 0, width, height };
m_supplementalLayerTransform.makeIdentity();
m_supplementalLayerTransform.translate(x, y);
bool layoutChanged = everHadLayout() && selfNeedsLayout();
RenderSVGBlock::layout();
ASSERT(!needsLayout());
setLocation(LayoutPoint());
updateLayerTransform();
// Invalidate all resources of this client if our layout changed.
if (layoutChanged)
SVGResourcesCache::clientLayoutChanged(*this);
repainter.repaintAfterLayout();
}
LayoutRect RenderSVGForeignObject::overflowClipRect(const LayoutPoint& location, RenderFragmentContainer*, OverlayScrollbarSizeRelevancy, PaintPhase) const
{
auto clipRect = enclosingLayoutRect(m_viewport);
clipRect.moveBy(location);
return clipRect;
}
void RenderSVGForeignObject::updateFromStyle()
{
RenderSVGBlock::updateFromStyle();
if (SVGRenderSupport::isOverflowHidden(*this))
setHasNonVisibleOverflow();
}
void RenderSVGForeignObject::applyTransform(TransformationMatrix& transform, const RenderStyle& style, const FloatRect& boundingBox, OptionSet<RenderStyle::TransformOperationOption> options) const
{
applySVGTransform(transform, foreignObjectElement(), style, boundingBox, std::nullopt, m_supplementalLayerTransform.isIdentity() ? std::nullopt : std::make_optional(m_supplementalLayerTransform), options);
}
}
#endif // ENABLE(LAYER_BASED_SVG_ENGINE)
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