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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "core/paint/SVGForeignObjectPainter.h"
#include "core/paint/BlockPainter.h"
#include "core/paint/FloatClipRecorder.h"
#include "core/paint/TransformRecorder.h"
#include "core/rendering/PaintInfo.h"
#include "core/rendering/svg/RenderSVGForeignObject.h"
#include "core/rendering/svg/SVGRenderSupport.h"
#include "core/rendering/svg/SVGRenderingContext.h"
#include "platform/graphics/GraphicsContextStateSaver.h"
namespace blink {
void SVGForeignObjectPainter::paint(const PaintInfo& paintInfo)
{
if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseSelection)
return;
PaintInfo childPaintInfo(paintInfo);
GraphicsContextStateSaver stateSaver(*childPaintInfo.context);
TransformRecorder transformRecorder(*childPaintInfo.context, m_renderSVGForeignObject.displayItemClient(), m_renderSVGForeignObject.localTransform());
// When transitioning from SVG to block painters we need to keep the PaintInfo rect up-to-date
// because it can be used for clipping.
m_renderSVGForeignObject.updatePaintInfoRect(childPaintInfo.rect);
OwnPtr<FloatClipRecorder> clipRecorder;
if (SVGRenderSupport::isOverflowHidden(&m_renderSVGForeignObject))
clipRecorder = adoptPtr(new FloatClipRecorder(*childPaintInfo.context, m_renderSVGForeignObject.displayItemClient(), childPaintInfo.phase, m_renderSVGForeignObject.viewportRect()));
SVGRenderingContext renderingContext;
bool continueRendering = true;
if (paintInfo.phase == PaintPhaseForeground) {
renderingContext.prepareToRenderSVGContent(&m_renderSVGForeignObject, childPaintInfo);
continueRendering = renderingContext.isRenderingPrepared();
}
if (continueRendering) {
// Paint all phases of FO elements atomically as though the FO element established its own stacking context.
bool preservePhase = paintInfo.phase == PaintPhaseSelection || paintInfo.phase == PaintPhaseTextClip;
const LayoutPoint childPoint = IntPoint();
childPaintInfo.phase = preservePhase ? paintInfo.phase : PaintPhaseBlockBackground;
BlockPainter(m_renderSVGForeignObject).paint(childPaintInfo, childPoint);
if (!preservePhase) {
childPaintInfo.phase = PaintPhaseChildBlockBackgrounds;
BlockPainter(m_renderSVGForeignObject).paint(childPaintInfo, childPoint);
childPaintInfo.phase = PaintPhaseFloat;
BlockPainter(m_renderSVGForeignObject).paint(childPaintInfo, childPoint);
childPaintInfo.phase = PaintPhaseForeground;
BlockPainter(m_renderSVGForeignObject).paint(childPaintInfo, childPoint);
childPaintInfo.phase = PaintPhaseOutline;
BlockPainter(m_renderSVGForeignObject).paint(childPaintInfo, childPoint);
}
}
}
} // namespace blink
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