ObjectPainter::paintAsStackingContext()

third_party/WebKit/Source/core/paint/ObjectPainter.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/ObjectPainter.h"
 
 #include "core/layout/LayoutBlock.h"
 #include "core/layout/LayoutInline.h"
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutTheme.h"
@@ skipping 516 matching lines @@
         quad[0] = FloatPoint(x1, y1 + std::max(adjacentWidth1, 0));
         quad[1] = FloatPoint(x1, y2 - std::max(adjacentWidth2, 0));
         quad[2] = FloatPoint(x2, y2 - std::max(-adjacentWidth2, 0));
         quad[3] = FloatPoint(x2, y1 + std::max(-adjacentWidth1, 0));
         break;
     }
 
     graphicsContext.fillPolygon(4, quad, color, antialias);
 }
 
+void ObjectPainter::paintAsPseudoStackingContext(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    bool preservePhase = paintInfo.phase == PaintPhaseSelection || paintInfo.phase == PaintPhaseTextClip;
+    if (!preservePhase && paintInfo.phase != PaintPhaseForeground)
+        return;
+
+    PaintInfo info(paintInfo);
+    info.phase = preservePhase ? paintInfo.phase : PaintPhaseBlockBackground;
+    m_layoutObject.paint(info, paintOffset);
+    if (!preservePhase) {
+        info.phase = PaintPhaseChildBlockBackgrounds;
+        m_layoutObject.paint(info, paintOffset);
+        info.phase = PaintPhaseFloat;
+        m_layoutObject.paint(info, paintOffset);
+        info.phase = PaintPhaseForeground;
+        m_layoutObject.paint(info, paintOffset);
+        info.phase = PaintPhaseOutline;
+        m_layoutObject.paint(info, paintOffset);
+    }
+}
+
 } // namespace blink