Add support for multiple text decorations with same line positioning

third_party/WebKit/Source/core/layout/LayoutObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  *               (http://www.torchmobile.com/)
@@ skipping 3036 matching lines @@
       if (Element* shadowHost = node()->ownerShadowHost()) {
         return shadowHost->layoutObject()->getUncachedPseudoStyle(
             PseudoStyleRequest(PseudoIdSelection));
       }
     }
   }
 
   return getUncachedPseudoStyle(PseudoStyleRequest(PseudoIdSelection));
 }
 
-void LayoutObject::getTextDecorations(unsigned decorations,
-                                      AppliedTextDecoration& underline,
-                                      AppliedTextDecoration& overline,
-                                      AppliedTextDecoration& linethrough,
-                                      bool quirksMode,
-                                      bool firstlineStyle) {
-  LayoutObject* curr = this;
-  const ComputedStyle* styleToUse = nullptr;
-  unsigned currDecs = TextDecorationNone;
-  Color resultColor;
-  TextDecorationStyle resultStyle;
-  do {
-    styleToUse = curr->style(firstlineStyle);
-    currDecs = styleToUse->getTextDecoration();
-    currDecs &= decorations;
-    resultColor =
-        styleToUse->visitedDependentColor(CSSPropertyTextDecorationColor);
-    resultStyle = styleToUse->getTextDecorationStyle();
-    // Parameter 'decorations' is cast as an int to enable the bitwise
-    // operations below.
-    if (currDecs) {
-      if (currDecs & TextDecorationUnderline) {
-        decorations &= ~TextDecorationUnderline;
-        underline.color = resultColor;
-        underline.style = resultStyle;
-      }
-      if (currDecs & TextDecorationOverline) {
-        decorations &= ~TextDecorationOverline;
-        overline.color = resultColor;
-        overline.style = resultStyle;
-      }
-      if (currDecs & TextDecorationLineThrough) {
-        decorations &= ~TextDecorationLineThrough;
-        linethrough.color = resultColor;
-        linethrough.style = resultStyle;
-      }
-    }
-    if (curr->isRubyText())
-      return;
-    curr = curr->parent();
-    if (curr && curr->isAnonymousBlock() && curr->isLayoutBlockFlow() &&
-        toLayoutBlockFlow(curr)->continuation())
-      curr = toLayoutBlockFlow(curr)->continuation();
-  } while (curr && decorations && (!quirksMode || !curr->node() ||
-                                   (!isHTMLAnchorElement(*curr->node()) &&
-                                    !isHTMLFontElement(*curr->node()))));
-
-  // If we bailed out, use the element we bailed out at (typically a <font> or
-  // <a> element).
-  if (decorations && curr) {
-    styleToUse = curr->style(firstlineStyle);
-    resultColor =
-        styleToUse->visitedDependentColor(CSSPropertyTextDecorationColor);
-    if (decorations & TextDecorationUnderline) {
-      underline.color = resultColor;
-      underline.style = resultStyle;
-    }
-    if (decorations & TextDecorationOverline) {
-      overline.color = resultColor;
-      overline.style = resultStyle;
-    }
-    if (decorations & TextDecorationLineThrough) {
-      linethrough.color = resultColor;
-      linethrough.style = resultStyle;
-    }
-  }
-}
-
 void LayoutObject::addAnnotatedRegions(Vector<AnnotatedRegionValue>& regions) {
   // Convert the style regions to absolute coordinates.
   if (style()->visibility() != EVisibility::Visible || !isBox())
     return;
 
   if (style()->getDraggableRegionMode() == DraggableRegionNone)
     return;
 
   LayoutBox* box = toLayoutBox(this);
   FloatRect localBounds(FloatPoint(), FloatSize(box->size()));
@@ skipping 412 matching lines @@
     const blink::LayoutObject* root = object1;
     while (root->parent())
       root = root->parent();
     root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
   } else {
     WTFLogAlways("%s", "Cannot showLayoutTree. Root is (nil)");
   }
 }
 
 #endif