| <!DOCTYPE HTML> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-actions.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <script src="scroll_support.js"></script> |
| <style> |
| #scrollableDiv { |
| width: 200px; |
| height: 200px; |
| overflow: scroll; |
| } |
| |
| #innerDiv { |
| width: 400px; |
| height: 400px; |
| } |
| </style> |
| |
| <body style="margin:0" onload=runTest()> |
| <div id="scrollableDiv"> |
| <div id="innerDiv"> |
| </div> |
| </div> |
| </body> |
| |
| <script> |
| var scrolling_div = document.getElementById('scrollableDiv'); |
| 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); |
| |
| function runTest() { |
| 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.")); |
| await waitForCompositorCommit(); |
| |
| // Do a horizontal scroll and wait for overscroll event. |
| await touchScrollInTarget(300, scrolling_div , 'right'); |
| 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 touchScrollInTarget(300, scrolling_div, 'down'); |
| 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); |
| }, 'Tests that the scrolled element gets overscroll event after fully scrolling by touch.'); |
| } |
| </script> |
