| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Custom elements: Range APIs should invoke constructor in tree order</title> |
| <meta name="author" title="Edgar Chen" href="mailto:echen@mozilla.com"> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/scripting.html#concept-upgrade-an-element"> |
| <link rel="help" href="https://dom.spec.whatwg.org/#concept-create-element"> |
| <line rel="help" href="https://dom.spec.whatwg.org/#concept-range-extract"> |
| <line rel="help" href="https://dom.spec.whatwg.org/#concept-range-clone"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <div id="log"></div> |
| |
| <c-e data-index="root"> |
| <c-e data-index="root-0"> |
| <c-e data-index="root-0-0"> |
| <c-e data-index="root-0-0-0"></c-e> |
| <span id="start"></span> |
| </c-e> |
| </c-e> |
| <c-e data-index="root-1"></c-e> |
| <span id="end"></span> |
| </c-e> |
| |
| <script> |
| |
| var logs = []; |
| class CE extends HTMLElement { |
| constructor() { |
| super(); |
| logs.push(this.dataset.index); |
| } |
| } |
| customElements.define('c-e', CE); |
| |
| function getRange() { |
| const range = new Range(); |
| range.setStart(document.getElementById('start'), 0); |
| range.setEnd(document.getElementById('end'), 0); |
| return range; |
| } |
| |
| test(function () { |
| // Clear log for testing. |
| logs = []; |
| getRange().cloneContents(); |
| assert_array_equals(logs, ['root-0', 'root-0-0', 'root-1']); |
| }, 'Range.cloneContents should invoke constructor in tree order'); |
| |
| test(function () { |
| // Clear log for testing. |
| logs = []; |
| getRange().extractContents(); |
| assert_array_equals(logs, ['root-0', 'root-0-0']); |
| }, 'Range.extractContents should invoke constructor in tree order'); |
| |
| </script> |
| </body> |
| </html> |
