| <!doctype html> |
| <title>focus(options) - preventScroll on nested scroll elements</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <style> |
| .scrollBox { width: 400px; height: 300px; border: 1px solid } |
| .bigbox { width: 380px; height: 300px; border: 1px solid } |
| .box { width: 380px; height: 150px; border: 1px solid } |
| </style> |
| <div class="scrollBox" style="overflow-y: scroll;"> |
| <div class="bigbox" id="1" style="overflow-y: scroll;" tabindex=1> |
| <div class="box" id="1_1" tabindex=1>1_1</div> |
| <div class="box" id="1_2" tabindex=1>1_2</div> |
| <div class="box" id="1_3" tabindex=1>1_3</div> |
| </div> |
| <div class="bigbox" id="2" style="overflow-y: scroll;" tabindex=1> |
| <div class="box" id="2_1" tabindex=1>2_1</div> |
| <div class="box" id="2_2" tabindex=1>2_2</div> |
| <div class="box" id="2_3" tabindex=1>2_3</div> |
| </div> |
| <div class="bigbox" id="3" style="overflow-y: scroll;" tabindex=1> |
| <div class="box" id="3_1" tabindex=1>3_1</div> |
| <div class="box" id="3_2" tabindex=1>3_2</div> |
| <div class="box" id="3_3" tabindex=1>3_3</div> |
| </div> |
| </div> |
| <script> |
| promise_test(async function(t) { |
| await new Promise(resolve => window.addEventListener("load", resolve)); |
| let div2_2 = document.getElementById("2_2"); |
| div2_2.focus({ preventScroll: true }); |
| |
| await new Promise(resolve => { |
| requestAnimationFrame(() => requestAnimationFrame(resolve)); |
| }); |
| |
| assert_equals(document.activeElement, div2_2, `box 2_2: should have been focused`); |
| assert_equals(div2_2.scrollTop, 0, "box 2_2: should not have scrolled"); |
| assert_equals(div2_2.parentNode.scrollTop, 0, "box 2_2: should not have scrolled ancestor"); |
| |
| // Reset focus |
| let div1_1 = document.getElementById("1_1"); |
| div1_1.focus(); |
| |
| await new Promise(resolve => { |
| requestAnimationFrame(() => requestAnimationFrame(resolve)); |
| }); |
| assert_equals(document.activeElement, div1_1, `box 1_1: should have been focused`); |
| |
| let div2 = document.getElementById("2"); |
| div2.focus({ preventScroll: true }); |
| |
| await new Promise(resolve => { |
| requestAnimationFrame(() => requestAnimationFrame(resolve)); |
| }); |
| |
| assert_equals(document.activeElement, div2, `box 2: should have been focused`); |
| assert_equals(div2.scrollTop, 0, "box 2: should not have scrolled"); |
| assert_equals(div2_2.scrollTop, 0, "box 2_2: should not have scrolled"); |
| assert_equals(div2.parentNode.scrollTop, 0, "box 2: should not have scrolled ancestor"); |
| }); |
| </script> |
