| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <p id="description"></p> |
| <div id="console"></div> |
| <script> |
| description('Tests that setting the .length on an HTMLSelectElement works in the presence of DOM mutation listeners that reorder option elements'); |
| |
| var wrapper = document.createElement('div'); |
| document.body.appendChild(wrapper); |
| wrapper.innerHTML = '<select id="theSelect">' + |
| '<option id="a">a</option>' + |
| '<option id="b">b</option>' + |
| '<option id="c">c</option>' + |
| '<option id="d">d</option>' + |
| '</select>'; |
| |
| var sel = document.getElementById('theSelect'); |
| |
| var firstRemove = true; |
| function onRemove(e) { |
| if (firstRemove) { |
| // remove listener temporarily to avoid lots of nesting |
| sel.removeEventListener('DOMNodeRemoved', onRemove, false); |
| var lastOption = document.getElementById('d'); |
| sel.removeChild(lastOption); |
| sel.insertBefore(lastOption, document.getElementById('c')); |
| firstRemove = false; |
| sel.addEventListener('DOMNodeRemoved', onRemove, false); |
| } |
| } |
| |
| sel.addEventListener('DOMNodeRemoved', onRemove, false); |
| sel.addEventListener('DOMNodeInserted', function() {}, false); |
| |
| shouldBe('sel.length', '4'); |
| sel.length = 2; |
| shouldBe('sel.length', '2'); |
| shouldBe('sel.options.item(0).id', '"a"'); |
| shouldBe('sel.options.item(1).id', '"b"'); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
