| <!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; |
| const onMacPlatform = navigator.userAgent.search(/\bMac OS X\b/) != -1; |
| |
| 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; |
| let asc_increments = [25, 10, 35, 7, 23]; |
| let asc_offsets = [45, 64, 128, 141, 183]; |
| let asc_offsets_mac = [43, 60, 121, 133, 173]; |
| |
| let desc_increments = [33, 11, 21, 5, 30]; |
| let desc_offsets = [122, 102, 64, 55, 0]; |
| let desc_offsets_mac = [116, 97, 60, 52, 0]; |
| |
| await mouseMoveTo(x, y); |
| await mouseDownAt(x, y); |
| |
| // Scroll down |
| for (var i = 0; i < 5; i++){ |
| y += asc_increments[i]; |
| await mouseMoveTo(x, y); |
| const offset = onMacPlatform ? asc_offsets_mac[i] : asc_offsets[i]; |
| if (internals.runtimeFlags.fractionalScrollOffsetsEnabled) { |
| assert_approx_equals(window.scrollY, offset, 1, |
| "Vertical thumb drag downwards did not scroll as expected at "+asc_increments[i]+" - "); |
| } else { |
| assert_equals(window.scrollY, offset, |
| "Vertical thumb drag downwards did not scroll as expected at "+asc_increments[i]+" - "); |
| } |
| }; |
| |
| // Scroll up |
| for (var i = 0; i < 5; i++){ |
| y -= desc_increments[i]; |
| await mouseMoveTo(x, y); |
| const offset = onMacPlatform ? desc_offsets_mac[i] : desc_offsets[i]; |
| if (internals.runtimeFlags.fractionalScrollOffsetsEnabled) { |
| assert_approx_equals(window.scrollY, offset, 1, |
| "Vertical thumb drag upwards did not scroll as expected at "+desc_increments[i]+" - "); |
| } else { |
| assert_equals(window.scrollY, offset, |
| "Vertical thumb drag upwards did not scroll as expected at "+desc_increments[i]+" - "); |
| } |
| }; |
| |
| await mouseUpAt(x, y); |
| assert_equals(window.scrollY, 0, "Mouseup on vertical scrollbar thumb is not expected to scroll."); |
| |
| // Since the horizontal scrolling is essentially the same codepath as vertical, |
| // this need not be tested in the interest of making the test run faster. |
| }, "Test mouse drags in increments on non-custom composited root scrollbar thumb."); |
| } |
| </script> |
| </body> |
