| <!DOCTYPE html> |
| <script src='../../resources/gesture-util.js'></script> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <div style="height:900px;width:400px"> |
| <div style="background-color:red;height:900px;width:200px;position:relative;left:0px;top:0px"></div> |
| <div style="background-color:green;height:900px;width:200px;position:relative;left:200px;top:-900px"></div> |
| </div> |
| <div style="height:900px;width:400px"> |
| <div style="background-color:blue;height:900px;width:200px;position:relative;left:0px;top:0px"></div> |
| <div style="background-color:yellow;height:900px;width:200px;position:relative;left:200px;top:-900px"></div> |
| </div> |
| |
| <script> |
| var givenScrollLeft = 2; |
| var expectedScrollLeft = 0; |
| var last_event = null; |
| var source = GestureSourceType.MOUSE_INPUT; |
| const numTicksX = givenScrollLeft / pixelsPerTick(); |
| const expectedWheelDeltaX = numTicksX * LEGACY_MOUSE_WHEEL_TICK_MULTIPLIER; |
| |
| function mousewheelHandler(e) |
| { |
| last_event = e; |
| } |
| |
| promise_test(async () => { |
| document.body.addEventListener("mousewheel", mousewheelHandler, false); |
| |
| await smoothScroll(givenScrollLeft, 100, 110, source, 'right', SPEED_INSTANT, false /* precise_scrolling_deltas */, true /* scroll_by_page */); |
| await conditionHolds( () => { |
| return document.scrollingElement.scrollLeft == window.expectedScrollLeft; |
| }); |
| assert_equals(last_event.wheelDeltaX, -Math.floor(expectedWheelDeltaX)); |
| assert_equals(last_event.wheelDelta, -Math.floor(expectedWheelDeltaX)); |
| }, 'This test checks one page of scroll on document moves the content by 0 pixels.'); |
| </script> |
