Allow postponed rail application for touch scrolling - blink side.

Source/web/tests/WebInputEventConversionTest.cpp

 /*
  * Copyright (C) 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 251 matching lines @@
         webGestureEvent.x = 10;
         webGestureEvent.y = 12;
         webGestureEvent.globalX = 20;
         webGestureEvent.globalY = 22;
         webGestureEvent.data.scrollUpdate.deltaX = 30;
         webGestureEvent.data.scrollUpdate.deltaY = 32;
         webGestureEvent.data.scrollUpdate.velocityX = 40;
         webGestureEvent.data.scrollUpdate.velocityY = 42;
         webGestureEvent.data.scrollUpdate.inertial = true;
         webGestureEvent.data.scrollUpdate.preventPropagation = true;
+        webGestureEvent.data.scrollUpdate.railsMode = WebInputEvent::RailsModeVertical;
 
         PlatformGestureEventBuilder platformGestureBuilder(view, webGestureEvent);
         EXPECT_EQ(5, platformGestureBuilder.position().x());
         EXPECT_EQ(6, platformGestureBuilder.position().y());
         EXPECT_EQ(20, platformGestureBuilder.globalPosition().x());
         EXPECT_EQ(22, platformGestureBuilder.globalPosition().y());
         EXPECT_EQ(15, platformGestureBuilder.deltaX());
         EXPECT_EQ(16, platformGestureBuilder.deltaY());
         // TODO: The velocity values may need to be scaled to page scale in
         // order to remain consist with delta values.
         EXPECT_EQ(40, platformGestureBuilder.velocityX());
         EXPECT_EQ(42, platformGestureBuilder.velocityY());
         EXPECT_TRUE(platformGestureBuilder.inertial());
         EXPECT_TRUE(platformGestureBuilder.preventPropagation());
+        EXPECT_EQ(PlatformEvent::RailsModeVertical,
+            platformGestureBuilder.railsMode());
     }
 
     {
         WebGestureEvent webGestureEvent;
         webGestureEvent.type = WebInputEvent::GestureScrollEnd;
         webGestureEvent.x = 10;
         webGestureEvent.y = 12;
         webGestureEvent.globalX = 20;
         webGestureEvent.globalY = 22;
 
@@ skipping 117 matching lines @@
     {
         PlatformMouseEvent platformMouseEvent(IntPoint(10, 10), IntPoint(10, 10), NoButton, PlatformEvent::MouseMoved, 1, false, false, false, false, PlatformMouseEvent::RealOrIndistinguishable, 0);
         RefPtrWillBeRawPtr<MouseEvent> mouseEvent = MouseEvent::create(EventTypeNames::mousemove, domWindow, platformMouseEvent, 0, document);
         WebMouseEventBuilder webMouseBuilder(view, documentLayoutView, *mouseEvent);
         EXPECT_EQ(WebMouseEvent::ButtonNone, webMouseBuilder.button);
     }
 
     {
         PlatformGestureEvent platformGestureEvent(PlatformEvent::GestureScrollUpdate, IntPoint(10, 12), IntPoint(20, 22), IntSize(25, 27), 0,
             false, false, false, false);
-        platformGestureEvent.setScrollGestureData(30, 32, 40, 42, true, true);
+        platformGestureEvent.setScrollGestureData(
+            30, 32, 40, 42, true, true, PlatformEvent::RailsModeHorizontal);
         // FIXME: GestureEvent does not preserve velocityX, velocityY,
-        // preventPropagation, or inertial. It also fails to scale
+        // preventPropagation, inertial, or railsMode. It also fails to scale
         // coordinates (x, y, deltaX, deltaY) to the page scale. This
         // may lead to unexpected bugs if a PlatformGestureEvent is
         // transformed into WebGestureEvent and back.
         RefPtrWillBeRawPtr<GestureEvent> gestureEvent = GestureEvent::create(domWindow, platformGestureEvent);
         WebGestureEventBuilder webGestureBuilder(view, documentLayoutView, *gestureEvent);
 
         EXPECT_EQ(10, webGestureBuilder.x);
         EXPECT_EQ(12, webGestureBuilder.y);
         EXPECT_EQ(20, webGestureBuilder.globalX);
         EXPECT_EQ(22, webGestureBuilder.globalY);
         EXPECT_EQ(30, webGestureBuilder.data.scrollUpdate.deltaX);
         EXPECT_EQ(32, webGestureBuilder.data.scrollUpdate.deltaY);
         EXPECT_EQ(0, webGestureBuilder.data.scrollUpdate.velocityX);
         EXPECT_EQ(0, webGestureBuilder.data.scrollUpdate.velocityY);
         EXPECT_FALSE(webGestureBuilder.data.scrollUpdate.inertial);
         EXPECT_FALSE(webGestureBuilder.data.scrollUpdate.preventPropagation);
+        EXPECT_EQ(WebInputEvent::RailsModeFree,
+            webGestureBuilder.data.scrollUpdate.railsMode);
     }
 
     {
         RefPtrWillBeRawPtr<Touch> touch = Touch::create(toLocalFrame(webViewImpl->page()->mainFrame()), document.get(), 0, FloatPoint(10, 9.5), FloatPoint(3.5, 2), FloatSize(4, 4.5), 0, 0);
         RefPtrWillBeRawPtr<TouchList> touchList = TouchList::create();
         touchList->append(touch);
         RefPtrWillBeRawPtr<TouchEvent> touchEvent = TouchEvent::create(touchList.get(), touchList.get(), touchList.get(), EventTypeNames::touchmove, domWindow, false, false, false, false, false, false);
 
         WebTouchEventBuilder webTouchBuilder(view, documentLayoutView, *touchEvent);
         ASSERT_EQ(1u, webTouchBuilder.touchesLength);
@@ skipping 465 matching lines @@
         EXPECT_EQ(15, platformWheelBuilder.deltaX());
         EXPECT_EQ(10, platformWheelBuilder.deltaY());
         EXPECT_EQ(PlatformEvent::AltKey, platformWheelBuilder.modifiers());
         EXPECT_TRUE(platformWheelBuilder.hasPreciseScrollingDeltas());
         EXPECT_FALSE(platformWheelBuilder.canScroll());
         EXPECT_EQ(platformWheelBuilder.railsMode(), PlatformEvent::RailsModeVertical);
     }
 }
 
 } // anonymous namespace