Introduce Element::AttributeModificationParams

third_party/WebKit/Source/core/html/HTMLFormControlElement.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 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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 119 matching lines @@
   m_ancestorDisabledState = AncestorDisabledStateUnknown;
   disabledAttributeChanged();
 }
 
 void HTMLFormControlElement::reset() {
   setAutofilled(false);
   resetImpl();
 }
 
 void HTMLFormControlElement::attributeChanged(
-    const QualifiedName& name,
-    const AtomicString& oldValue,
-    const AtomicString& newValue,
-    AttributeModificationReason reason) {
-  HTMLElement::attributeChanged(name, oldValue, newValue, reason);
-  if (name == disabledAttr && oldValue.isNull() != newValue.isNull()) {
+    const AttributeModificationParams& params) {
+  HTMLElement::attributeChanged(params);
+  if (params.name == disabledAttr &&
+      params.oldValue.isNull() != params.newValue.isNull()) {
     disabledAttributeChanged();
-    if (reason == AttributeModificationReason::kDirectly &&
+    if (params.reason == AttributeModificationReason::kDirectly &&
         isDisabledFormControl() && adjustedFocusedElementInTreeScope() == this)
       blur();
   }
 }
 
-void HTMLFormControlElement::parseAttribute(const QualifiedName& name,
-                                            const AtomicString& oldValue,
-                                            const AtomicString& value) {
+void HTMLFormControlElement::parseAttribute(
+    const AttributeModificationParams& params) {
+  const QualifiedName& name = params.name;
   if (name == formAttr) {
     formAttributeChanged();
     UseCounter::count(document(), UseCounter::FormAttribute);
   } else if (name == readonlyAttr) {
-    if (oldValue.isNull() != value.isNull()) {
+    if (params.oldValue.isNull() != params.newValue.isNull()) {
       setNeedsWillValidateCheck();
       pseudoStateChanged(CSSSelector::PseudoReadOnly);
       pseudoStateChanged(CSSSelector::PseudoReadWrite);
       if (layoutObject())
         LayoutTheme::theme().controlStateChanged(*layoutObject(),
                                                  ReadOnlyControlState);
     }
   } else if (name == requiredAttr) {
-    if (oldValue.isNull() != value.isNull())
+    if (params.oldValue.isNull() != params.newValue.isNull())
       requiredAttributeChanged();
     UseCounter::count(document(), UseCounter::RequiredAttribute);
   } else if (name == autofocusAttr) {
-    HTMLElement::parseAttribute(name, oldValue, value);
+    HTMLElement::parseAttribute(params);
     UseCounter::count(document(), UseCounter::AutoFocusAttribute);
   } else {
-    HTMLElement::parseAttribute(name, oldValue, value);
+    HTMLElement::parseAttribute(params);
   }
 }
 
 void HTMLFormControlElement::disabledAttributeChanged() {
   // Don't blur in this function because this is called for descendants of
   // <fieldset> while tree traversal.
   EventDispatchForbiddenScope eventForbidden;
 
   setNeedsWillValidateCheck();
   pseudoStateChanged(CSSSelector::PseudoDisabled);
@@ skipping 449 matching lines @@
     const Element& source) {
   HTMLElement::copyNonAttributePropertiesFromElement(source);
   setNeedsValidityCheck();
 }
 
 void HTMLFormControlElement::associateWith(HTMLFormElement* form) {
   associateByParser(form);
 };
 
 }  // namespace blink