File: table_painter.cc

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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 "third_party/blink/renderer/core/paint/table_painter.h"

#include "third_party/blink/renderer/core/layout/collapsed_border_value.h"
#include "third_party/blink/renderer/core/layout/layout_table.h"
#include "third_party/blink/renderer/core/layout/layout_table_section.h"
#include "third_party/blink/renderer/core/paint/box_painter.h"
#include "third_party/blink/renderer/core/paint/object_painter.h"
#include "third_party/blink/renderer/core/paint/paint_info.h"
#include "third_party/blink/renderer/core/paint/table_section_painter.h"
#include "third_party/blink/renderer/platform/graphics/paint/drawing_recorder.h"

namespace blink {

void TablePainter::PaintObject(const PaintInfo& paint_info,
                               const PhysicalOffset& paint_offset) {
  PaintPhase paint_phase = paint_info.phase;

  if (ShouldPaintSelfBlockBackground(paint_phase)) {
    PaintBoxDecorationBackground(paint_info, paint_offset);
    if (paint_phase == PaintPhase::kSelfBlockBackgroundOnly)
      return;
  }

  if (paint_phase == PaintPhase::kMask) {
    PaintMask(paint_info, paint_offset);
    return;
  }

  if (paint_phase != PaintPhase::kSelfOutlineOnly &&
      !paint_info.DescendantPaintingBlocked()) {
    PaintInfo paint_info_for_descendants = paint_info.ForDescendants();

    for (LayoutObject* child = layout_table_.FirstChild(); child;
         child = child->NextSibling()) {
      if (child->IsBox() && !To<LayoutBox>(child)->HasSelfPaintingLayer() &&
          (child->IsTableSection() || child->IsTableCaption())) {
        child->Paint(paint_info_for_descendants);
      }
    }

    if (layout_table_.HasCollapsedBorders() &&
        ShouldPaintDescendantBlockBackgrounds(paint_phase) &&
        layout_table_.StyleRef().Visibility() == EVisibility::kVisible) {
      PaintCollapsedBorders(paint_info_for_descendants, paint_offset);
    }
  }

  if (ShouldPaintSelfOutline(paint_phase))
    ObjectPainter(layout_table_).PaintOutline(paint_info, paint_offset);
}

void TablePainter::PaintBoxDecorationBackground(
    const PaintInfo& paint_info,
    const PhysicalOffset& paint_offset) {
  PhysicalRect rect(paint_offset, layout_table_.Size());
  layout_table_.SubtractCaptionRect(rect);

  if (layout_table_.HasBoxDecorationBackground() &&
      layout_table_.StyleRef().Visibility() == EVisibility::kVisible) {
    BoxPainter(layout_table_)
        .PaintBoxDecorationBackgroundWithRect(
            paint_info, BoxPainter(layout_table_).VisualRect(paint_offset),
            rect, layout_table_);
  }

  BoxPainter(layout_table_).RecordHitTestData(paint_info, rect, layout_table_);
}

void TablePainter::PaintMask(const PaintInfo& paint_info,
                             const PhysicalOffset& paint_offset) {
  if (layout_table_.StyleRef().Visibility() != EVisibility::kVisible ||
      paint_info.phase != PaintPhase::kMask)
    return;

  if (DrawingRecorder::UseCachedDrawingIfPossible(
          paint_info.context, layout_table_, paint_info.phase))
    return;

  PhysicalRect rect(paint_offset, layout_table_.Size());
  layout_table_.SubtractCaptionRect(rect);

  BoxDrawingRecorder recorder(paint_info.context, layout_table_,
                              paint_info.phase, paint_offset);
  BoxPainter(layout_table_).PaintMaskImages(paint_info, rect);
}

void TablePainter::PaintCollapsedBorders(const PaintInfo& paint_info,
                                         const PhysicalOffset& paint_offset) {
  for (LayoutTableSection* section = layout_table_.BottomSection(); section;
       section = layout_table_.SectionAbove(section)) {
    TableSectionPainter(*section).PaintCollapsedBorders(paint_info);
  }
}

}  // namespace blink