Do not dispatch change event when pressing spin button for input type=datetime

Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 143 matching lines @@
 void BaseMultipleFieldsDateAndTimeInputType::didBlurFromControl()
 {
     // We don't need to call blur(). This function is called when control
     // lost focus.
 
     if (containsFocusedShadowElement())
         return;
     RefPtr<HTMLInputElement> protector(element());
     // Remove focus ring by CSS "focus" pseudo class.
     element().setFocus(false);
+    if (SpinButtonElement *spinButton = spinButtonElement())
+        spinButton->releaseCapture();
 }
 
 void BaseMultipleFieldsDateAndTimeInputType::didFocusOnControl()
 {
     // We don't need to call focus(). This function is called when control
     // got focus.
 
     if (!containsFocusedShadowElement())
         return;
     // Add focus ring by CSS "focus" pseudo class.
     // FIXME: Setting the focus flag to non-focused element is too tricky.
     element().setFocus(true);
 }
 
 void BaseMultipleFieldsDateAndTimeInputType::editControlValueChanged()
 {
     RefPtr<HTMLInputElement> input(element());
     String oldValue = input->value();
     String newValue = sanitizeValue(dateTimeEditElement()->value());
     // Even if oldValue is null and newValue is "", we should assume they are same.
     if ((oldValue.isEmpty() && newValue.isEmpty()) || oldValue == newValue) {
         input->setNeedsValidityCheck();
     } else {
         input->setValueInternal(newValue, DispatchNoEvent);
         input->setNeedsStyleRecalc(SubtreeStyleChange);
         input->dispatchFormControlInputEvent();
-        input->dispatchFormControlChangeEvent();
     }
     input->notifyFormStateChanged();
     input->updateClearButtonVisibility();
 }
 
 bool BaseMultipleFieldsDateAndTimeInputType::hasCustomFocusLogic() const
 {
     return false;
 }
 
@@ skipping 56 matching lines @@
         return;
     }
 
     DateTimeEditElement* edit = this->dateTimeEditElement();
     if (!edit)
         return;
     DateComponents date;
     unsigned end;
     if (date.parseDate(value, 0, end) && end == value.length())
         edit->setOnlyYearMonthDay(date);
+    element().dispatchFormControlChangeEvent();
 }
 
 void BaseMultipleFieldsDateAndTimeInputType::pickerIndicatorChooseValue(double value)
 {
     ASSERT(std::isfinite(value) || std::isnan(value));
     if (std::isnan(value))
         element().setValue(emptyString(), DispatchInputAndChangeEvent);
     else
         element().setValueAsNumber(value, ASSERT_NO_EXCEPTION, DispatchInputAndChangeEvent);
 }
@@ skipping 157 matching lines @@
 {
     DateTimeEditElement* edit = dateTimeEditElement();
     return element().value().isEmpty() && edit && edit->anyEditableFieldsHaveValues();
 }
 
 AtomicString BaseMultipleFieldsDateAndTimeInputType::localeIdentifier() const
 {
     return element().computeInheritedLanguage();
 }
 
+void BaseMultipleFieldsDateAndTimeInputType::editControlDidChangeValueByKeyboard()
+{
+    element().dispatchFormControlChangeEvent();
+}
+
 void BaseMultipleFieldsDateAndTimeInputType::minOrMaxAttributeChanged()
 {
     updateView();
 }
 
 void BaseMultipleFieldsDateAndTimeInputType::readonlyAttributeChanged()
 {
     spinButtonElement()->releaseCapture();
     clearButtonElement()->releaseCapture();
     if (DateTimeEditElement* edit = dateTimeEditElement())
@@ skipping 148 matching lines @@
         clearButton->setInlineStyleProperty(CSSPropertyPointerEvents, CSSValueNone);
     } else {
         clearButton->removeInlineStyleProperty(CSSPropertyOpacity);
         clearButton->removeInlineStyleProperty(CSSPropertyPointerEvents);
     }
 }
 
 } // namespace WebCore
 
 #endif