Make PositionIterator to skip contents of INPUT/SELECT/TEXTAREA

third_party/WebKit/Source/core/editing/EditingUtilities.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 273 matching lines @@
 
 int comparePositions(const PositionWithAffinity& a,
                      const PositionWithAffinity& b) {
   return comparePositions(a.position(), b.position());
 }
 
 int comparePositions(const VisiblePosition& a, const VisiblePosition& b) {
   return comparePositions(a.deepEquivalent(), b.deepEquivalent());
 }
 
+// TODO(editing-dev): We should implement real version which refers
+// "user-select" CSS property.
+// TODO(editing-dev): We should make |SelectionAdjuster| to use this funciton
+// instead of |isSelectionBondary()|.
+bool isUserSelectContain(const Node& node) {
+  return isHTMLTextAreaElement(node) || isHTMLInputElement(node) ||
+         isHTMLSelectElement(node);
+}
+
 enum EditableLevel { Editable, RichlyEditable };
 static bool hasEditableLevel(const Node& node, EditableLevel editableLevel) {
   DCHECK(node.document().isActive());
   // TODO(editing-dev): We should have this check:
   // DCHECK_GE(node.document().lifecycle().state(),
   //           DocumentLifecycle::StyleClean);
   if (node.isPseudoElement())
     return false;
 
   // Ideally we'd call DCHECK(!needsStyleRecalc()) here, but
@@ skipping 1856 matching lines @@
         return InputType::DeleteWordBackward;
       if (granularity == LineBoundary)
         return InputType::DeleteLineBackward;
       return InputType::DeleteContentBackward;
     default:
       return InputType::None;
   }
 }
 
 }  // namespace blink