[Editing][DOM][CodeHealth] Make Node::isContentEditable and Node::isRichEditable global functions.

third_party/WebKit/Source/core/dom/Node.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 519 matching lines @@
         if (node->getNodeType() == TEXT_NODE)
             node = toText(node)->mergeNextSiblingNodesIfPossible();
         else
             node = NodeTraversal::nextPostOrder(*node);
     }
 }
 
 bool Node::isContentEditable(UserSelectAllTreatment treatment) const
 {
     document().updateStyleAndLayoutTree();
-    return hasEditableStyle(Editable, treatment);
+    return hasEditableStyle(this, Editable, treatment);
 }
 
 bool Node::isContentRichlyEditable() const
 {
     document().updateStyleAndLayoutTree();
-    return hasEditableStyle(RichlyEditable, UserSelectAllIsAlwaysNonEditable);
+    return hasEditableStyle(this, RichlyEditable, UserSelectAllIsAlwaysNonEditable);
 }
 
-bool Node::hasEditableStyle(EditableLevel editableLevel, UserSelectAllTreatment treatment) const
+// TODO(yoichio): Move this to core/editing
+bool Node::hasEditableStyle(const Node* node, EditableLevel editableLevel, UserSelectAllTreatment treatment)

[yosin_UTC9, 2016/07/07 09:34:54]

s/const Node*/const Node&/

 {
-    if (isPseudoElement())
+    if (node->isPseudoElement())
         return false;
 
     // Ideally we'd call DCHECK(!needsStyleRecalc()) here, but
     // ContainerNode::setFocus() calls setNeedsStyleRecalc(), so the assertion
     // would fire in the middle of Document::setFocusedNode().
 
-    for (const Node& node : NodeTraversal::inclusiveAncestorsOf(*this)) {
-        if ((node.isHTMLElement() || node.isDocumentNode()) && node.layoutObject()) {
+    for (const Node& ancestor : NodeTraversal::inclusiveAncestorsOf(*node)) {
+        if ((ancestor.isHTMLElement() || ancestor.isDocumentNode()) && ancestor.layoutObject()) {
             // Elements with user-select: all style are considered atomic
             // therefore non editable.
-            if (nodeIsUserSelectAll(&node) && treatment == UserSelectAllIsAlwaysNonEditable)
+            if (nodeIsUserSelectAll(&ancestor) && treatment == UserSelectAllIsAlwaysNonEditable)
                 return false;
-            switch (node.layoutObject()->style()->userModify()) {
+            switch (ancestor.layoutObject()->style()->userModify()) {
             case READ_ONLY:
                 return false;
             case READ_WRITE:
                 return true;
             case READ_WRITE_PLAINTEXT_ONLY:
                 return editableLevel != RichlyEditable;
             }
             ASSERT_NOT_REACHED();
             return false;
         }
     }
 
     return false;
 }
 
-bool Node::isEditableToAccessibility(EditableLevel editableLevel) const
+// TODO(yoichio): Move this to core/editing
+bool Node::isEditableToAccessibility(const Node* node, EditableLevel editableLevel)

[yosin_UTC9, 2016/07/07 09:34:54]

s/const Node*/const Node&/

 {
-    if (hasEditableStyle(editableLevel))
+    if (hasEditableStyle(node, editableLevel))
         return true;
 
     // FIXME: Respect editableLevel for ARIA editable elements.
     if (editableLevel == RichlyEditable)
         return false;
 
     // FIXME(dmazzoni): support ScopedAXObjectCache (crbug/489851).
-    if (AXObjectCache* cache = document().existingAXObjectCache())
-        return cache->rootAXEditableElement(this);
+    if (AXObjectCache* cache = node->document().existingAXObjectCache())
+        return cache->rootAXEditableElement(node);
 
     return false;
 }
 
 LayoutBox* Node::layoutBox() const
 {
     LayoutObject* layoutObject = this->layoutObject();
     return layoutObject && layoutObject->isBox() ? toLayoutBox(layoutObject) : nullptr;
 }
 
@@ skipping 1899 matching lines @@
 
 void showNodePath(const blink::Node* node)
 {
     if (node)
         node->showNodePathForThis();
     else
         fprintf(stderr, "Cannot showNodePath for (nil)\n");
 }
 
 #endif