| <!DOCTYPE HTML> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| <script src="../../../resources/gesture-util.js"></script> |
| <script src="resources/scroll-util.js"></script> |
| <style> |
| #scrollableDiv { |
| width: 200px; |
| height: 200px; |
| overflow: scroll; |
| } |
| |
| #innerDiv { |
| width: 400px; |
| height: 400px; |
| } |
| </style> |
| |
| <body style="margin:0"> |
| <div id="scrollableDiv"> |
| <div id="innerDiv"> |
| </div> |
| </div> |
| </body> |
| |
| <script> |
| if (window.internals) |
| internals.runtimeFlags.overscrollCustomizationEnabled = true; |
| |
| var scrolling_div = document.getElementById('scrollableDiv'); |
| var rect = scrolling_div.getBoundingClientRect(); |
| var x = rect.left + rect.width / 2; |
| var y = rect.top + rect.height / 2; |
| |
| var overscrolled_x_delta = 0; |
| var overscrolled_y_delta = 0; |
| function onOverscroll(event) { |
| assert_false(event.cancelable); |
| assert_false(event.bubbles); |
| overscrolled_x_delta = event.deltaX; |
| overscrolled_y_delta = event.deltaY; |
| } |
| scrolling_div.addEventListener("overscroll", onOverscroll); |
| |
| async function test_overscroll_event_fire(source_device, |
| precise_scrolling_delta) { |
| scrolling_div.scrollTo(0, 0); |
| overscrolled_x_delta = 0; |
| overscrolled_y_delta = 0; |
| await waitForCompositorCommit(); |
| |
| // Do a horizontal scroll and wait for overscroll event. |
| await scrollRight(source_device, precise_scrolling_delta); |
| await waitFor(() => { return overscrolled_x_delta > 0; }, |
| 'Scroller did not receive overscroll event after horizontal scroll.'); |
| assert_equals(scrolling_div.scrollWidth - scrolling_div.scrollLeft, |
| scrolling_div.clientWidth); |
| |
| overscrolled_x_delta = 0; |
| overscrolled_y_delta = 0; |
| |
| // Do a vertical scroll and wait for overscroll event. |
| await scrollDown(source_device, precise_scrolling_delta); |
| await waitFor(() => { return overscrolled_y_delta > 0; }, |
| 'Scroller did not receive overscroll event after vertical scroll.'); |
| assert_equals(scrolling_div.scrollHeight - scrolling_div.scrollTop, |
| scrolling_div.clientHeight); |
| } |
| |
| promise_test (async (t) => { |
| // Make sure that no overscroll event is sent to document. |
| document.addEventListener("overscroll", |
| t.unreached_func("Document got unexpected overscroll event.")); |
| return test_overscroll_event_fire(GestureSourceType.TOUCH_INPUT); |
| }, 'Tests that the scrolled element gets overscroll event after fully scrolling by touch.'); |
| |
| promise_test (async (t) => { |
| // Make sure that no overscroll event is sent to document. |
| document.addEventListener("overscroll", |
| t.unreached_func("Document got unexpected overscroll event.")); |
| return test_overscroll_event_fire(GestureSourceType.MOUSE_INPUT, |
| true /* precise_scrolling_delta */); |
| }, 'Tests that the scrolled element gets overscroll event after fully' + |
| 'scrolling by non-animating wheel scrolling.'); |
| |
| promise_test (async (t) => { |
| // Make sure that no overscroll event is sent to document. |
| document.addEventListener("overscroll", |
| t.unreached_func("Document got unexpected overscroll event.")); |
| return test_overscroll_event_fire(GestureSourceType.MOUSE_INPUT, |
| false /* precise_scrolling_delta */); |
| }, 'Tests that the scrolled element gets overscroll event after fully' + |
| 'scrolling by animated wheel scrolling (smooth-scrolling)'); |
| </script> |
