third_party/WebKit/Source/core/paint/SVGRootInlineBoxPainter.cpp

// 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 "core/paint/SVGRootInlineBoxPainter.h"

#include "core/layout/api/LineLayoutAPIShim.h"
#include "core/layout/api/SelectionState.h"
#include "core/layout/svg/line/SVGInlineFlowBox.h"
#include "core/layout/svg/line/SVGInlineTextBox.h"
#include "core/layout/svg/line/SVGRootInlineBox.h"
#include "core/paint/LayoutObjectDrawingRecorder.h"
#include "core/paint/PaintInfo.h"
#include "core/paint/SVGInlineFlowBoxPainter.h"
#include "core/paint/SVGInlineTextBoxPainter.h"
#include "core/paint/SVGPaintContext.h"

namespace blink {

void SVGRootInlineBoxPainter::paint(const PaintInfo& paintInfo,
                                    const LayoutPoint& paintOffset) {
  DCHECK(paintInfo.phase == PaintPhaseForeground ||
         paintInfo.phase == PaintPhaseSelection);

  bool hasSelection = !paintInfo.isPrinting() &&
                      m_svgRootInlineBox.getSelectionState() != SelectionNone;

  PaintInfo paintInfoBeforeFiltering(paintInfo);
  if (hasSelection &&
      !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(
          paintInfoBeforeFiltering.context,
          *LineLayoutAPIShim::constLayoutObjectFrom(
              m_svgRootInlineBox.getLineLayoutItem()),
          paintInfoBeforeFiltering.phase)) {
    LayoutObjectDrawingRecorder recorder(
        paintInfoBeforeFiltering.context,
        *LineLayoutAPIShim::constLayoutObjectFrom(
            m_svgRootInlineBox.getLineLayoutItem()),
        paintInfoBeforeFiltering.phase,
        paintInfoBeforeFiltering.cullRect().m_rect);
    for (InlineBox* child = m_svgRootInlineBox.firstChild(); child;
         child = child->nextOnLine()) {
      if (child->isSVGInlineTextBox())
        SVGInlineTextBoxPainter(*toSVGInlineTextBox(child))
            .paintSelectionBackground(paintInfoBeforeFiltering);
      else if (child->isSVGInlineFlowBox())
        SVGInlineFlowBoxPainter(*toSVGInlineFlowBox(child))
            .paintSelectionBackground(paintInfoBeforeFiltering);
    }
  }

  SVGPaintContext paintContext(*LineLayoutAPIShim::constLayoutObjectFrom(
                                   m_svgRootInlineBox.getLineLayoutItem()),
                               paintInfoBeforeFiltering);
  if (paintContext.applyClipMaskAndFilterIfNecessary()) {
    for (InlineBox* child = m_svgRootInlineBox.firstChild(); child;
         child = child->nextOnLine())
      child->paint(paintContext.paintInfo(), paintOffset, LayoutUnit(),
                   LayoutUnit());
  }
}

}  // namespace blink