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 overscrolled_x_delta = 0; 311cb0ef41Sopenharmony_civar overscrolled_y_delta = 0; 321cb0ef41Sopenharmony_cifunction onOverscroll(event) { 331cb0ef41Sopenharmony_ci assert_false(event.cancelable); 341cb0ef41Sopenharmony_ci // overscroll events are bubbled when the target node is document. 351cb0ef41Sopenharmony_ci assert_true(event.bubbles); 361cb0ef41Sopenharmony_ci overscrolled_x_delta = event.deltaX; 371cb0ef41Sopenharmony_ci overscrolled_y_delta = event.deltaY; 381cb0ef41Sopenharmony_ci} 391cb0ef41Sopenharmony_cidocument.addEventListener("overscroll", onOverscroll); 401cb0ef41Sopenharmony_ci 411cb0ef41Sopenharmony_cifunction runTest() { 421cb0ef41Sopenharmony_ci promise_test (async (t) => { 431cb0ef41Sopenharmony_ci // Make sure that no overscroll event is sent to target_div. 441cb0ef41Sopenharmony_ci target_div.addEventListener("overscroll", 451cb0ef41Sopenharmony_ci t.unreached_func("target_div got unexpected overscroll event.")); 461cb0ef41Sopenharmony_ci await waitForCompositorCommit(); 471cb0ef41Sopenharmony_ci 481cb0ef41Sopenharmony_ci // Scroll up on target div and wait for the doc to get overscroll event. 491cb0ef41Sopenharmony_ci await touchScrollInTarget(300, target_div, 'up'); 501cb0ef41Sopenharmony_ci await waitFor(() => { return overscrolled_y_delta < 0; }, 511cb0ef41Sopenharmony_ci 'Document did not receive overscroll event after scroll up on target.'); 521cb0ef41Sopenharmony_ci assert_equals(target_div.scrollTop, 0); 531cb0ef41Sopenharmony_ci 541cb0ef41Sopenharmony_ci // Scroll left on target div and wait for the doc to get overscroll event. 551cb0ef41Sopenharmony_ci await touchScrollInTarget(300, target_div, 'left'); 561cb0ef41Sopenharmony_ci await waitFor(() => { return overscrolled_x_delta < 0; }, 571cb0ef41Sopenharmony_ci 'Document did not receive overscroll event after scroll left on target.'); 581cb0ef41Sopenharmony_ci assert_equals(target_div.scrollLeft, 0); 591cb0ef41Sopenharmony_ci }, 'Tests that the document gets overscroll event when no element scrolls ' + 601cb0ef41Sopenharmony_ci 'after touch scrolling.'); 611cb0ef41Sopenharmony_ci} 621cb0ef41Sopenharmony_ci</script> 63