Track reasons for |Node::SetNeedsStyleRecalc|

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 134 matching lines @@
     } else if (name == disabledAttr) {
         bool oldDisabled = m_disabled;
         m_disabled = !value.isNull();
         if (oldDisabled != m_disabled)
             disabledAttributeChanged();
     } else if (name == readonlyAttr) {
         bool wasReadOnly = m_isReadOnly;
         m_isReadOnly = !value.isNull();
         if (wasReadOnly != m_isReadOnly) {
             setNeedsWillValidateCheck();
-            setNeedsStyleRecalc(SubtreeStyleChange);
+            setNeedsStyleRecalc(StyleRecalcDueToControl, SubtreeStyleChange);
             if (renderer() && renderer()->style()->hasAppearance())
                 RenderTheme::theme().stateChanged(renderer(), ReadOnlyControlState);
         }
     } else if (name == requiredAttr) {
         bool wasRequired = m_isRequired;
         m_isRequired = !value.isNull();
         if (wasRequired != m_isRequired)
             requiredAttributeChanged();
         UseCounter::count(document(), UseCounter::RequiredAttribute);
     } else if (name == autofocusAttr) {
@@ skipping 14 matching lines @@
         // here.
         document().setNeedsFocusedElementCheck();
     }
 }
 
 void HTMLFormControlElement::requiredAttributeChanged()
 {
     setNeedsValidityCheck();
     // Style recalculation is needed because style selectors may include
     // :required and :optional pseudo-classes.
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(StyleRecalcDueToRequiredOptionalPseudoClass, SubtreeStyleChange);

[rune, 2014/09/08 08:27:57]

This is an example of a case that should happen during style invalidation
through invalidation sets for the mentioned pseudo classes. Each of these cases
need to be analyzed to find out if there are style adjustments which are done
without involving selectors.

 }
 
 bool HTMLFormControlElement::supportsAutofocus() const
 {
     return false;
 }
 
 bool HTMLFormControlElement::isAutofocusable() const
 {
     return fastHasAttribute(autofocusAttr) && supportsAutofocus();
 }
 
 void HTMLFormControlElement::setAutofilled(bool autofilled)
 {
     if (autofilled == m_isAutofilled)
         return;
 
     m_isAutofilled = autofilled;
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(StyleRecalcDueToControlValue, SubtreeStyleChange);
 }
 
 static bool shouldAutofocusOnAttach(const HTMLFormControlElement* element)
 {
     if (!element->isAutofocusable())
         return false;
     if (element->document().isSandboxed(SandboxAutomaticFeatures)) {
         // FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
         element->document().addConsoleMessage(ConsoleMessage::create(SecurityMessageSource, ErrorMessageLevel, "Blocked autofocusing on a form control because the form's frame is sandboxed and the 'allow-scripts' permission is not set."));
         return false;
@@ skipping 167 matching lines @@
 
 void HTMLFormControlElement::setNeedsWillValidateCheck()
 {
     // We need to recalculate willValidate immediately because willValidate change can causes style change.
     bool newWillValidate = recalcWillValidate();
     if (m_willValidateInitialized && m_willValidate == newWillValidate)
         return;
     m_willValidateInitialized = true;
     m_willValidate = newWillValidate;
     setNeedsValidityCheck();
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(StyleRecalcDueToControl, SubtreeStyleChange);
     if (!m_willValidate)
         hideVisibleValidationMessage();
 }
 
 void HTMLFormControlElement::findCustomValidationMessageTextDirection(const String& message, TextDirection &messageDir, String& subMessage, TextDirection &subMessageDir)
 {
     bool hasStrongDirection;
     subMessage = fastGetAttribute(titleAttr);
     messageDir = determineDirectionality(message, hasStrongDirection);
     if (!subMessage.isEmpty())
@@ skipping 74 matching lines @@
         // correctly when something which changes validity is updated.
         ASSERT(m_isValid == valid());
     }
     return m_isValid;
 }
 
 void HTMLFormControlElement::setNeedsValidityCheck()
 {
     if (!m_validityIsDirty && willValidate()) {
         // Update style for pseudo classes such as :valid :invalid.
-        setNeedsStyleRecalc(SubtreeStyleChange);
+        setNeedsStyleRecalc(StyleRecalcDueToControl, SubtreeStyleChange);
         m_validityIsDirty = true;
     }
 
     // Updates only if this control already has a validation message.
     if (isValidationMessageVisible()) {
         // Calls updateVisibleValidationMessage() even if m_isValid is not
         // changed because a validation message can be changed.
         updateVisibleValidationMessage();
     }
 }
@@ skipping 40 matching lines @@
 
 void HTMLFormControlElement::setFocus(bool flag)
 {
     LabelableElement::setFocus(flag);
 
     if (!flag && wasChangedSinceLastFormControlChangeEvent())
         dispatchFormControlChangeEvent();
 }
 
 } // namespace Webcore