| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>Test selectionchange event fired on Text Control element</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| |
| <input id="input" type="text" value="hello"> |
| |
| <script> |
| const element = document.querySelector("input"); |
| const events_on_document = []; |
| document.addEventListener("selectionchange", ev => { |
| events_on_document.push(ev); |
| }); |
| |
| const events_on_input = []; |
| element.addEventListener("selectionchange", ev => { |
| events_on_input.push(ev); |
| }); |
| |
| promise_test(async () => { |
| element.focus(); |
| element.setSelectionRange(5, 5); |
| await new Promise(resolve => step_timeout(resolve, 500)); |
| events_on_document.length = 0; |
| events_on_input.length = 0; |
| |
| assert_equals(element.selectionStart, 5, "selectionStart before pressing backspace key"); |
| assert_equals(element.selectionEnd, 5, "selectionEnd before pressing backspace key"); |
| |
| await new test_driver.send_keys(element, "\uE003"); |
| |
| assert_equals(element.selectionStart, 4, "selectionStart after pressing backspace key"); |
| assert_equals(element.selectionEnd, 4, "selectionEnd after pressing backspace key"); |
| |
| // Waits a short time to allow any events to be processed. |
| await new Promise(resolve => step_timeout(resolve, 500)); |
| assert_equals(events_on_input.length, 1); |
| |
| //selectionchange event fired on a text control should bubble to the document |
| assert_equals(events_on_document[0].target, element, "Event target should be the input element"); |
| assert_equals(events_on_document.length, 1); |
| |
| }, "selectionchange event fired on an input element"); |
| </script> |
