Refactoring button field and its type

third_party/WebKit/Source/core/html/shadow/SpinButtonElement.cpp

 /*
  * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
  * 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:
  * 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
@@ skipping 70 matching lines @@
     }
 
     if (!shouldRespondToMouseEvents()) {
         if (!event->defaultHandled())
             HTMLDivElement::defaultEventHandler(event);
         return;
     }
 
     MouseEvent* mouseEvent = toMouseEvent(event);
     IntPoint local = roundedIntPoint(box->absoluteToLocal(FloatPoint(mouseEvent->absoluteLocation()), UseTransforms));
-    if (mouseEvent->type() == EventTypeNames::mousedown && mouseEvent->button() == LeftButton) {
+    if (mouseEvent->type() == EventTypeNames::mousedown && mouseEvent->button() == static_cast<short>(WebPointerProperties::Button::Left)) {
         if (box->pixelSnappedBorderBoxRect().contains(local)) {
             if (m_spinButtonOwner)
                 m_spinButtonOwner->focusAndSelectSpinButtonOwner();
             if (layoutObject()) {
                 if (m_upDownState != Indeterminate) {
                     // A JavaScript event handler called in doStepAction() below
                     // might change the element state and we might need to
                     // cancel the repeating timer by the state change. If we
                     // started the timer after doStepAction(), we would have no
                     // chance to cancel the timer.
                     startRepeatingTimer();
                     doStepAction(m_upDownState == Up ? 1 : -1);
                 }
             }
             event->setDefaultHandled();
         }
-    } else if (mouseEvent->type() == EventTypeNames::mouseup && mouseEvent->button() == LeftButton) {
+    } else if (mouseEvent->type() == EventTypeNames::mouseup && mouseEvent->button() == static_cast<short>(WebPointerProperties::Button::Left)) {
         releaseCapture();
     } else if (event->type() == EventTypeNames::mousemove) {
         if (box->pixelSnappedBorderBoxRect().contains(local)) {
             if (!m_capturing) {
                 if (LocalFrame* frame = document().frame()) {
                     frame->eventHandler().setCapturingMouseEventsNode(this);
                     m_capturing = true;
                     if (Page* page = document().page())
                         page->chromeClient().registerPopupOpeningObserver(this);
                 }
@@ skipping 133 matching lines @@
     return !m_spinButtonOwner || m_spinButtonOwner->shouldSpinButtonRespondToMouseEvents();
 }
 
 DEFINE_TRACE(SpinButtonElement)
 {
     visitor->trace(m_spinButtonOwner);
     HTMLDivElement::trace(visitor);
 }
 
 } // namespace blink