Add ScrollDirectionPhysical enum in Scroll types.

Source/core/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * 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.
@@ skipping 545 matching lines @@
         node = m_frame->document()->focusedElement();
 
     if (!node)
         node = m_mousePressNode.get();
 
     if (!node || !node->layoutObject())
         return false;
 
     LayoutBox* curBox = node->layoutObject()->enclosingBox();
     while (curBox && !curBox->isLayoutView()) {
-        ScrollDirection physicalDirection = toPhysicalDirection(
+        ScrollDirectionPhysical physicalDirection = toPhysicalDirection(
             direction, curBox->isHorizontalWritingMode(), curBox->style()->isFlippedBlocksWritingMode());
 
         // If we're at the stopNode, we should try to scroll it but we shouldn't bubble past it
         bool shouldStopBubbling = stopNode && *stopNode && curBox->node() == *stopNode;
         bool didScroll = curBox->scroll(physicalDirection, granularity, delta);
 
         if (didScroll && stopNode)
             *stopNode = curBox->node();
 
         if (didScroll || shouldStopBubbling) {
@@ skipping 22 matching lines @@
 {
     // The layout needs to be up to date to determine if we can scroll. We may be
     // here because of an onLoad event, in which case the final layout hasn't been performed yet.
     m_frame->document()->updateLayoutIgnorePendingStylesheets();
     // FIXME: enable scroll customization in this case. See crbug.com/410974.
     if (scroll(direction, granularity, startingNode))
         return true;
     LocalFrame* frame = m_frame;
     FrameView* view = frame->view();
     if (view) {
-        ScrollDirection physicalDirection =
+        ScrollDirectionPhysical physicalDirection =
             toPhysicalDirection(direction, view->isVerticalDocument(), view->isFlippedDocument());
         if (view->scrollableArea()->scroll(physicalDirection, granularity)) {
             setFrameWasScrolledByUser();
             return true;
         }
     }
 
     Frame* parentFrame = frame->tree().parent();
     if (!parentFrame || !parentFrame->isLocalFrame())
         return false;
@@ skipping 1166 matching lines @@
 
     Node* stopNode = m_previousWheelScrolledNode.get();
     ScrollGranularity granularity = wheelGranularityToScrollGranularity(wheelEvent);
     IntPoint absolutePosition = roundedIntPoint(wheelEvent->absoluteLocation());
 
     // Break up into two scrolls if we need to.  Diagonal movement on
     // a MacBook pro is an example of a 2-dimensional mouse wheel event (where both deltaX and deltaY can be set).
 
     // FIXME: enable scroll customization in this case. See crbug.com/410974.
     if (wheelEvent->railsMode() != Event::RailsModeVertical
-        && scroll(ScrollRight, granularity, startNode, &stopNode, wheelEvent->deltaX(), absolutePosition))
+        && scroll(ScrollRightIgnoringWritingMode, granularity, startNode, &stopNode, wheelEvent->deltaX(), absolutePosition))
         wheelEvent->setDefaultHandled();
 
     if (wheelEvent->railsMode() != Event::RailsModeHorizontal
-        && scroll(ScrollDown, granularity, startNode, &stopNode, wheelEvent->deltaY(), absolutePosition))
+        && scroll(ScrollDownIgnoringWritingMode, granularity, startNode, &stopNode, wheelEvent->deltaY(), absolutePosition))
         wheelEvent->setDefaultHandled();
 
     if (!m_latchedWheelEventNode)
         m_previousWheelScrolledNode = stopNode;
 }
 
 bool EventHandler::handleGestureShowPress()
 {
     m_lastShowPressTimestamp = WTF::currentTime();
 
@@ skipping 465 matching lines @@
             m_previousGestureScrolledNode = scrollState->currentNativeScrollingElement();
             m_deltaConsumedForScrollSequence = scrollState->deltaConsumedForScrollSequence();
             scrolled = scrollState->deltaX() != gestureEvent.deltaX()
                 || scrollState->deltaY() != gestureEvent.deltaY();
         } else {
             if (gestureEvent.preventPropagation())
                 stopNode = m_previousGestureScrolledNode.get();
 
             // First try to scroll the closest scrollable LayoutBox ancestor of |node|.
             ScrollGranularity granularity = ScrollByPrecisePixel;
-            bool horizontalScroll = scroll(ScrollLeft, granularity, node, &stopNode, delta.width());
+            bool horizontalScroll = scroll(ScrollLeftIgnoringWritingMode, granularity, node, &stopNode, delta.width());
             if (!gestureEvent.preventPropagation())
                 stopNode = nullptr;
-            bool verticalScroll = scroll(ScrollUp, granularity, node, &stopNode, delta.height());
+            bool verticalScroll = scroll(ScrollUpIgnoringWritingMode, granularity, node, &stopNode, delta.height());
             scrolled = horizontalScroll || verticalScroll;
 
             if (gestureEvent.preventPropagation())
                 m_previousGestureScrolledNode = stopNode;
         }
         if (scrolled) {
             setFrameWasScrolledByUser();
             return true;
         }
     }
@@ skipping 910 matching lines @@
     // FIXME: enable scroll customization in this case. See crbug.com/410974.
     if (scroll(direction, ScrollByPage)) {
         event->setDefaultHandled();
         return;
     }
 
     FrameView* view = m_frame->view();
     if (!view)
         return;
 
-    ScrollDirection physicalDirection =
+    ScrollDirectionPhysical physicalDirection =
         toPhysicalDirection(direction, view->isVerticalDocument(), view->isFlippedDocument());
 
     if (view->scrollableArea()->scroll(physicalDirection, ScrollByPage))
         event->setDefaultHandled();
 }
 
 void EventHandler::defaultBackspaceEventHandler(KeyboardEvent* event)
 {
     ASSERT(event->type() == EventTypeNames::keydown);
 
@@ skipping 494 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink