Introduce Element::AttributeModificationParams

third_party/WebKit/Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003-2011, 2013, 2014 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
@@ skipping 339 matching lines @@
     return false;
   }
   virtual void collectStyleForPresentationAttribute(const QualifiedName&,
                                                     const AtomicString&,
                                                     MutableStylePropertySet*) {}
 
   // For exposing to DOM only.
   NamedNodeMap* attributesForBindings() const;
 
   enum class AttributeModificationReason { kDirectly, kByParser, kByCloning };
+  struct AttributeModificationParams {
+    STACK_ALLOCATED();
+    AttributeModificationParams(const QualifiedName& qname,
+                                const AtomicString& oldValue,
+                                const AtomicString& newValue,
+                                AttributeModificationReason reason)
+        : name(qname), oldValue(oldValue), newValue(newValue), reason(reason) {}
+
+    const QualifiedName& name;
+    const AtomicString& oldValue;
+    const AtomicString& newValue;
+    const AttributeModificationReason reason;
+  };
 
   // |attributeChanged| is called whenever an attribute is added, changed or
   // removed. It handles very common attributes such as id, class, name, style,
   // and slot.
   //
   // While the owner document is parsed, this function is called after all
   // attributes in a start tag were added to the element.
-  virtual void attributeChanged(const QualifiedName&,
-                                const AtomicString& oldValue,
-                                const AtomicString& newValue,
-                                AttributeModificationReason);
+  virtual void attributeChanged(const AttributeModificationParams&);
 
   // |parseAttribute| is called by |attributeChanged|. If an element
   // implementation needs to check an attribute update, override this function.
   //
   // While the owner document is parsed, this function is called after all
   // attributes in a start tag were added to the element.
-  virtual void parseAttribute(const QualifiedName&,
-                              const AtomicString& oldValue,
-                              const AtomicString& newValue);
+  virtual void parseAttribute(const AttributeModificationParams&);
 
   virtual bool hasLegalLinkAttribute(const QualifiedName&) const;
   virtual const QualifiedName& subResourceAttributeName() const;
 
   // Only called by the parser immediately after element construction.
   void parserSetAttributes(const Vector<Attribute>&);
 
   // Remove attributes that might introduce scripting from the vector leaving
   // the element unchanged.
   void stripScriptingAttributes(Vector<Attribute>&) const;
@@ skipping 321 matching lines @@
                                                  const QualifiedName& attr1);
   void logAddElementIfIsolatedWorldAndInDocument(const char element[],
                                                  const QualifiedName& attr1,
                                                  const QualifiedName& attr2);
   void logAddElementIfIsolatedWorldAndInDocument(const char element[],
                                                  const QualifiedName& attr1,
                                                  const QualifiedName& attr2,
                                                  const QualifiedName& attr3);
   void logUpdateAttributeIfIsolatedWorldAndInDocument(
       const char element[],
-      const QualifiedName& attributeName,
-      const AtomicString& oldValue,
-      const AtomicString& newValue);
+      const AttributeModificationParams&);
 
   DECLARE_VIRTUAL_TRACE();
 
   DECLARE_VIRTUAL_TRACE_WRAPPERS();
 
   SpellcheckAttributeState spellcheckAttributeState() const;
 
   ElementIntersectionObserverData* intersectionObserverData() const;
   ElementIntersectionObserverData& ensureIntersectionObserverData();
 
@@ skipping 451 matching lines @@
 #define DECLARE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
   static T* create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T)                     \
   T* T::create(const QualifiedName& tagName, Document& document) { \
     return new T(tagName, document);                               \
   }
 
 }  // namespace blink
 
 #endif  // Element_h