blob: eec51f7e51aefd06a3eb40a8b4877e8b374e1f15 [file] [log] [blame]
<html>
<head>
<script src="../../../resources/js-test.js"></script>
</head>
<body>
<p>This tests for problems where we'd lose the selection in a textarea when making style and value changes.</p>
<div id="console"></div>
<form id="form"><textarea id="ta">abc123
</textarea></form>
<script type="text/javascript">
var ta = document.getElementById('ta');
debug("- default value");
shouldBe('ta.selectionStart', '0');
shouldBe('ta.selectionEnd', '0');
debug("- set selectionStart/End");
ta.selectionStart = 3;
ta.selectionEnd = 4;
shouldBe('ta.selectionStart', '3');
shouldBe('ta.selectionEnd', '4');
debug("- add background style");
ta.setAttribute("style", "background-color: yellow");
shouldBe('ta.selectionStart', '3');
shouldBe('ta.selectionEnd', '4');
debug("- set value to same value");
ta.value = "abc123\n";
shouldBe('ta.selectionStart', '3');
shouldBe('ta.selectionEnd', '4');
debug("- set value to a different value");
ta.value = "abc123";
shouldBe('ta.selectionStart', '6');
shouldBe('ta.selectionEnd', '6');
debug("- set selection so we can test again without a trailing newline");
ta.selectionStart = 3;
ta.selectionEnd = 4;
ta.removeAttribute("style");
shouldBe('ta.selectionStart', '3');
shouldBe('ta.selectionEnd', '4');
debug("- add background style");
ta.setAttribute("style", "background-color: yellow");
shouldBe('ta.selectionStart', '3');
shouldBe('ta.selectionEnd', '4');
debug("- set value to same value");
ta.value = "abc123";
shouldBe('ta.selectionStart', '3');
shouldBe('ta.selectionEnd', '4');
debug("- reset form");
form.reset();
shouldBe('ta.selectionStart', '7');
shouldBe('ta.selectionEnd', '7');
debug("- append a empty text node");
ta.setSelectionRange(2, 3);
ta.appendChild(document.createTextNode(''));
shouldBe('ta.selectionStart', '2');
shouldBe('ta.selectionEnd', '3');
</script>
</body>
</html>