| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>Selectionchange event fired on document if TextControl element is in Shadow Tree</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <div id="root"></div> |
| |
| <script> |
| const root = document.getElementById("root"); |
| const shadow = root.attachShadow({ mode: "open" }); |
| const element = document.createElement("input"); |
| element.value = "hello"; |
| shadow.append(element); |
| |
| 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; |
| |
| document.execCommand("delete"); |
| // Waits a short time to allow any events to be processed. |
| await new Promise(resolve => step_timeout(resolve, 500)); |
| |
| const expectedValue = "hell"; |
| assert_equals(element.value, expectedValue, "element.value should be " + expectedValue); |
| //selectionchange event should not fire on input element |
| assert_equals(events_on_input.length, 0); |
| |
| //selectionchange event should fire on the document |
| assert_equals(events_on_document.length, 1); |
| assert_equals(events_on_document[0].target, document, "Event target should be the document"); |
| |
| }, "selectionchange event fired on the document in case TextControl element is in Shadow Tree"); |
| </script> |
