Refactoring button field and its type

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 514 matching lines @@
     m_client->setMouseOverURL(WebURL());
     PageWidgetEventHandler::handleMouseLeave(mainFrame, event);
 }
 
 void WebViewImpl::handleMouseDown(LocalFrame& mainFrame, const WebMouseEvent& event)
 {
     // If there is a popup open, close it as the user is clicking on the page
     // (outside of the popup). We also save it so we can prevent a click on an
     // element from immediately reopening the same popup.
     RefPtr<WebPagePopupImpl> pagePopup;
-    if (event.button == WebMouseEvent::ButtonLeft) {
+    if (event.button == WebMouseEvent::Button::Left) {
         pagePopup = m_pagePopup;
         hidePopups();
         DCHECK(!m_pagePopup);
     }
 
     // Take capture on a mouse down on a plugin so we can send it mouse events.
     // If the hit node is a plugin but a scrollbar is over it don't start mouse
     // capture because it will interfere with the scrollbar receiving events.
     IntPoint point(event.x, event.y);
-    if (event.button == WebMouseEvent::ButtonLeft && m_page->mainFrame()->isLocalFrame()) {
+    if (event.button == WebMouseEvent::Button::Left && m_page->mainFrame()->isLocalFrame()) {
         point = m_page->deprecatedLocalMainFrame()->view()->rootFrameToContents(point);
         HitTestResult result(m_page->deprecatedLocalMainFrame()->eventHandler().hitTestResultAtPoint(point));
         result.setToShadowHostIfInUserAgentShadowRoot();
         Node* hitNode = result.innerNodeOrImageMapImage();
 
         if (!result.scrollbar() && hitNode && hitNode->layoutObject() && hitNode->layoutObject()->isEmbeddedObject()) {
             m_mouseCaptureNode = hitNode;
             TRACE_EVENT_ASYNC_BEGIN0("input", "capturing mouse", this);
         }
     }
 
     PageWidgetEventHandler::handleMouseDown(mainFrame, event);
 
-    if (event.button == WebMouseEvent::ButtonLeft && m_mouseCaptureNode)
+    if (event.button == WebMouseEvent::Button::Left && m_mouseCaptureNode)
         m_mouseCaptureGestureToken = mainFrame.eventHandler().takeLastMouseDownGestureToken();
 
     if (m_pagePopup && pagePopup && m_pagePopup->hasSamePopupClient(pagePopup.get())) {
         // That click triggered a page popup that is the same as the one we just closed.
         // It needs to be closed.
         cancelPagePopup();
     }
 
     // Dispatch the contextmenu event regardless of if the click was swallowed.
     if (!page()->settings().showContextMenuOnMouseUp()) {
 #if OS(MACOSX)
-        if (event.button == WebMouseEvent::ButtonRight
-            || (event.button == WebMouseEvent::ButtonLeft
+        if (event.button == WebMouseEvent::Button::Right
+            || (event.button == WebMouseEvent::Button::Left
                 && event.modifiers & WebMouseEvent::ControlKey))
             mouseContextMenu(event);
 #else
-        if (event.button == WebMouseEvent::ButtonRight)
+        if (event.button == WebMouseEvent::Button::Right)
             mouseContextMenu(event);
 #endif
     }
 }
 
 void WebViewImpl::setDisplayMode(WebDisplayMode mode)
 {
     m_displayMode = mode;
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return;
@@ skipping 35 matching lines @@
     // implementation...
 }
 
 void WebViewImpl::handleMouseUp(LocalFrame& mainFrame, const WebMouseEvent& event)
 {
     PageWidgetEventHandler::handleMouseUp(mainFrame, event);
 
     if (page()->settings().showContextMenuOnMouseUp()) {
         // Dispatch the contextmenu event regardless of if the click was swallowed.
         // On Mac/Linux, we handle it on mouse down, not up.
-        if (event.button == WebMouseEvent::ButtonRight)
+        if (event.button == WebMouseEvent::Button::Right)
             mouseContextMenu(event);
     }
 }
 
 WebInputEventResult WebViewImpl::handleMouseWheel(LocalFrame& mainFrame, const WebMouseWheelEvent& event)
 {
     // Halt an in-progress fling on a wheel tick.
     if (!event.hasPreciseScrollingDeltas)
         endActiveFlingAnimation();
 
@@ skipping 2997 matching lines @@
     FrameView* view = mainFrameImpl()->frameView();
     IntPoint pointInRootFrame = view->contentsToFrame(view->viewportToContents(pointInViewport));
     return hitTestResultForRootFramePos(pointInRootFrame);
 }
 
 void WebViewImpl::dragSourceEndedAt(
     const WebPoint& clientPoint,
     const WebPoint& screenPoint,
     WebDragOperation operation)
 {
-    PlatformMouseEvent pme(clientPoint, screenPoint, LeftButton, PlatformEvent::MouseMoved,
+    PlatformMouseEvent pme(clientPoint, screenPoint, WebPointerProperties::Button::Left, PlatformEvent::MouseMoved,
         0, PlatformEvent::NoModifiers, PlatformMouseEvent::RealOrIndistinguishable, WTF::monotonicallyIncreasingTime());
     m_page->deprecatedLocalMainFrame()->eventHandler().dragSourceEndedAt(pme,
         static_cast<DragOperation>(operation));
 }
 
 void WebViewImpl::dragSourceSystemDragEnded()
 {
     // It's possible for us to get this callback while not doing a drag if
     // it's from a previous page that got unloaded.
     if (m_doingDragAndDrop) {
@@ skipping 939 matching lines @@
         return nullptr;
     return focusedFrame;
 }
 
 LocalFrame* WebViewImpl::focusedLocalFrameAvailableForIme() const
 {
     return m_imeAcceptEvents ? focusedLocalFrameInWidget() : nullptr;
 }
 
 } // namespace blink