Add canScroll bit to WebMouseWheelEvent

Source/web/WebInputEventConversion.cpp

 /*
  * Copyright (C) 2009 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 136 matching lines @@
     if (e.modifiers & WebInputEvent::ShiftKey)
         m_modifiers |= PlatformEvent::ShiftKey;
     if (e.modifiers & WebInputEvent::ControlKey)
         m_modifiers |= PlatformEvent::CtrlKey;
     if (e.modifiers & WebInputEvent::AltKey)
         m_modifiers |= PlatformEvent::AltKey;
     if (e.modifiers & WebInputEvent::MetaKey)
         m_modifiers |= PlatformEvent::MetaKey;
 
     m_hasPreciseScrollingDeltas = e.hasPreciseScrollingDeltas;
+    m_suppressScroll = e.suppressScroll;
 #if OS(MACOSX)
     m_phase = static_cast<PlatformWheelEventPhase>(e.phase);
     m_momentumPhase = static_cast<PlatformWheelEventPhase>(e.momentumPhase);
     m_timestamp = e.timeStampSeconds;
     m_canRubberbandLeft = e.canRubberbandLeft;
     m_canRubberbandRight = e.canRubberbandRight;
 #endif
 }
 
 // PlatformGestureEventBuilder --------------------------------------------------
@@ skipping 465 matching lines @@
 
 WebMouseWheelEventBuilder::WebMouseWheelEventBuilder(const Widget* widget, const RenderObject* renderObject, const WheelEvent& event)
 {
     if (event.type() != EventTypeNames::wheel && event.type() != EventTypeNames::mousewheel)
         return;
     type = WebInputEvent::MouseWheel;
     updateWebMouseEventFromCoreMouseEvent(event, widget, *renderObject, *this);
     deltaX = -event.deltaX();
     deltaY = -event.deltaY();
     wheelTicksX = event.ticksX();
     wheelTicksY = event.ticksY();

[Rick Byers, 2014/11/27 15:55:14]

Since you ended up having to propagate your new bit now to WheelEvent, I think
you need to update WebMouseWheelEventBuilder too (and add a test for it too -
following the pattern of WebInputConversionTest::WebMouseEventBuilder).  This
could be important, for example, in browser tag scenarios where a WheelEvent
ends up going out to a plugin and then across to another renderer process.

[lanwei, 2014/12/02 06:28:22]

Done.

     scrollByPage = event.deltaMode() == WheelEvent::DOM_DELTA_PAGE;
 }
 
 WebKeyboardEventBuilder::WebKeyboardEventBuilder(const KeyboardEvent& event)
 {
     if (event.type() == EventTypeNames::keydown)
         type = KeyDown;
     else if (event.type() == EventTypeNames::keyup)
         type = WebInputEvent::KeyUp;
     else if (event.type() == EventTypeNames::keypress)
@@ skipping 161 matching lines @@
     modifiers = getWebInputModifiers(event);
 
     globalX = event.screenX();
     globalY = event.screenY();
     IntPoint localPoint = convertAbsoluteLocationForRenderObject(event.absoluteLocation(), *renderObject);
     x = localPoint.x();
     y = localPoint.y();
 }
 
 } // namespace blink