| <!DOCTYPE html> |
| <title>Tests mouse interactions on a non-custom composited root scrollbar thumb.</title> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script src="../../../resources/gesture-util.js"></script> |
| <script src="../../../resources/scrollbar-util.js"></script> |
| <body style="height: 1000px; width: 1000px"> |
| <script> |
| if (window.internals) |
| internals.settings.setScrollAnimatorEnabled(false); |
| |
| window.onload = () => { |
| const TRACK_WIDTH = calculateScrollbarThickness(); |
| const BUTTON_WIDTH = TRACK_WIDTH; |
| |
| promise_test (async () => { |
| await waitForCompositorCommit(); |
| resetScrollOffset(document.scrollingElement); |
| |
| // Testing the vertical scrollbar thumb. |
| let x = window.innerWidth - TRACK_WIDTH / 2; |
| let y = BUTTON_WIDTH + 10; |
| |
| await mouseMoveTo(x, y); |
| await mouseDownAt(x, y); |
| assert_equals(window.scrollY, 0, "Mousedown on vertical scrollbar thumb is not expected to scroll."); |
| |
| await mouseMoveTo(x, y-10); |
| assert_equals(window.scrollY, 0, "Vertical thumb drag beyond the track should not cause a scroll."); |
| |
| await mouseMoveTo(x, y); |
| assert_equals(window.scrollY, 0, "Vertical thumb drag beyond the track and back should not cause a scroll."); |
| await mouseUpAt(x, y); |
| }, "Test thumb drags beyond scrollbar track."); |
| } |
| </script> |
| </body> |
