LayoutBox::mapContentsRectToVisibleRectInBorderBoxSpace()

third_party/WebKit/Source/core/layout/LayoutBox.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
  *
  * 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.
  *
@@ skipping 823 matching lines @@
     LayoutRect visualOverflowRectForPropagation(const ComputedStyle&) const;
     LayoutRect logicalLayoutOverflowRectForPropagation(const ComputedStyle&) const;
     LayoutRect layoutOverflowRectForPropagation(const ComputedStyle&) const;
 
     bool hasOverflowModel() const { return m_overflow; }
     bool hasVisualOverflow() const { return m_overflow && !borderBoxRect().contains(m_overflow->visualOverflowRect()); }
 
     virtual bool needsPreferredWidthsRecalculation() const;
 
     IntSize scrolledContentOffset() const;
-    void mapScrollingContentsRectToBoxSpace(LayoutRect&) const;
+
+    // See LayoutObject::mapToVisibleRectInAncestorSpace() for the meaning of return value.
+    bool mapContentsRectToVisibleRectInBorderBoxSpace(LayoutRect&, VisibleRectFlags) const;

[chrishtr, 2016/03/28 20:38:59]

This is not a visual rect right? Because it doesn't flip for writing mode, for
example?

[Xianzhu, 2016/03/28 21:12:08]

Right. I'm going to modify mapToVisibleRectInAncestorSpace() to accept visual
rect (flipped for writing mode), so that this function can also always accept
and output visible rect.

 
     // Returns true if the rect actually intersects the clipping region.
     // If edgeInclusive is true, then this method may return true even
     // if the resulting rect has zero area.
     bool applyOverflowClip(LayoutRect&, VisibleRectFlags = DefaultVisibleRectFlags) const;
 
     virtual bool hasRelativeLogicalWidth() const;
     virtual bool hasRelativeLogicalHeight() const;
 
     bool hasHorizontalLayoutOverflow() const
@@ skipping 291 matching lines @@
         || breakValue == BreakLeft
         || breakValue == BreakPage
         || breakValue == BreakRecto
         || breakValue == BreakRight
         || breakValue == BreakVerso;
 }
 
 } // namespace blink
 
 #endif // LayoutBox_h