Move StyledMarkupAccumulator::shouldApplyWrappingStyle to its serializer

Source/core/editing/StyledMarkupSerializer.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009, 2010, 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 Igalia S.L.
  * Copyright (C) 2011 Motorola Mobility. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 223 matching lines @@
         }
 
         if (!n->layoutObject() && !enclosingElementWithTag(firstPositionInOrBeforeNode(n), selectTag)) {
             next = Strategy::nextSkippingChildren(*n);
             // Don't skip over pastEnd.
             if (pastEnd && Strategy::isDescendantOf(*pastEnd, *n))
                 next = pastEnd;
         } else {
             // Add the node to the markup if we're not skipping the descendants
             if (markupAccumulator)
-                markupAccumulator->appendStartTag(*n);
+                appendStartMarkup(*markupAccumulator, *n);
 
             // If node has no children, close the tag now.
             if (Strategy::hasChildren(*n)) {
                 ancestorsToClose.append(toContainerNode(n));
                 continue;
             }
             if (markupAccumulator && n->isElementNode())
                 markupAccumulator->appendEndTag(toElement(*n));
             lastClosed = n;
         }
@@ skipping 75 matching lines @@
 RefPtrWillBeRawPtr<EditingStyle> StyledMarkupSerializer<Strategy>::createInlineStyleIfNeeded(StyledMarkupAccumulator& accumulator, Node& node)
 {
     if (!node.isElementNode())
         return nullptr;
     RefPtrWillBeRawPtr<EditingStyle> inlineStyle = accumulator.createInlineStyle(toElement(node));
     if (convertBlocksToInlines() && isBlock(&node))
         inlineStyle->forceInline();
     return inlineStyle;
 }
 
+template<typename Strategy>
+void StyledMarkupSerializer<Strategy>::appendStartMarkup(StyledMarkupAccumulator& accumulator, Node& node)
+{
+    switch (node.nodeType()) {
+    case Node::TEXT_NODE: {
+        Text& text = toText(node);
+        ContainerNode* parent = Strategy::parent(text);

[yosin_UTC9, 2015/06/12 12:09:55]

For checking text in TEXTAREA, we should take parent in DOM tree even
if we traverse in composed tree. In composed tree, text nodes are inside
editable element in shadow tree.

[hajimehoshi, 2015/06/16 08:15:18]

Done.

+        if (parent && parent->isElementNode() && toElement(parent)->tagQName() == textareaTag) {
+            accumulator.appendText(text);
+            return;
+        }
+        accumulator.appendTextWithWrappingStyle(text);

[yosin_UTC9, 2015/06/12 12:09:55]

I think we may want to calculate inline style here and pass to
|appendTextWithWrappingStyle()|

[hajimehoshi, 2015/06/16 08:15:18]

Done.

+        break;
+    }
+    default:
+        accumulator.appendStartMarkup(node);
+        break;
+    }
+}
+
 template class StyledMarkupSerializer<EditingStrategy>;
 
 } // namespace blink