11cb0ef41Sopenharmony_ci<!DOCTYPE HTML> 21cb0ef41Sopenharmony_ci<script src="/resources/testharness.js"></script> 31cb0ef41Sopenharmony_ci<script src="/resources/testharnessreport.js"></script> 41cb0ef41Sopenharmony_ci<script src="/resources/testdriver.js"></script> 51cb0ef41Sopenharmony_ci<script src="/resources/testdriver-actions.js"></script> 61cb0ef41Sopenharmony_ci<script src="/resources/testdriver-vendor.js"></script> 71cb0ef41Sopenharmony_ci<script src="scroll_support.js"></script> 81cb0ef41Sopenharmony_ci<style> 91cb0ef41Sopenharmony_ci#targetDiv { 101cb0ef41Sopenharmony_ci width: 200px; 111cb0ef41Sopenharmony_ci height: 200px; 121cb0ef41Sopenharmony_ci overflow: scroll; 131cb0ef41Sopenharmony_ci} 141cb0ef41Sopenharmony_ci 151cb0ef41Sopenharmony_ci#innerDiv { 161cb0ef41Sopenharmony_ci width: 400px; 171cb0ef41Sopenharmony_ci height: 400px; 181cb0ef41Sopenharmony_ci} 191cb0ef41Sopenharmony_ci</style> 201cb0ef41Sopenharmony_ci 211cb0ef41Sopenharmony_ci<body style="margin:0" onload=runTest()> 221cb0ef41Sopenharmony_ci<div id="targetDiv"> 231cb0ef41Sopenharmony_ci <div id="innerDiv"> 241cb0ef41Sopenharmony_ci </div> 251cb0ef41Sopenharmony_ci</div> 261cb0ef41Sopenharmony_ci</body> 271cb0ef41Sopenharmony_ci 281cb0ef41Sopenharmony_ci<script> 291cb0ef41Sopenharmony_civar target_div = document.getElementById('targetDiv'); 301cb0ef41Sopenharmony_civar window_received_overscroll = false; 311cb0ef41Sopenharmony_ci 321cb0ef41Sopenharmony_cifunction onOverscroll(event) { 331cb0ef41Sopenharmony_ci assert_false(event.cancelable); 341cb0ef41Sopenharmony_ci // overscroll events targetting document are bubbled to the window. 351cb0ef41Sopenharmony_ci assert_true(event.bubbles); 361cb0ef41Sopenharmony_ci window_received_overscroll = true; 371cb0ef41Sopenharmony_ci} 381cb0ef41Sopenharmony_ciwindow.addEventListener("overscroll", onOverscroll); 391cb0ef41Sopenharmony_ci 401cb0ef41Sopenharmony_cifunction runTest() { 411cb0ef41Sopenharmony_ci promise_test (async (t) => { 421cb0ef41Sopenharmony_ci // Make sure that no overscroll event is sent to target_div. 431cb0ef41Sopenharmony_ci target_div.addEventListener("overscroll", 441cb0ef41Sopenharmony_ci t.unreached_func("target_div got unexpected overscroll event.")); 451cb0ef41Sopenharmony_ci // Scroll up on target div and wait for the window to get overscroll event. 461cb0ef41Sopenharmony_ci await touchScrollInTarget(300, target_div, 'up'); 471cb0ef41Sopenharmony_ci await waitFor(() => { return window_received_overscroll; }, 481cb0ef41Sopenharmony_ci 'Window did not receive overscroll event after scroll up on target.'); 491cb0ef41Sopenharmony_ci }, 'Tests that the window gets overscroll event when no element scrolls' + 501cb0ef41Sopenharmony_ci 'after touch scrolling.'); 511cb0ef41Sopenharmony_ci} 521cb0ef41Sopenharmony_ci</script> 53