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Move selection to end when textarea value is assigned

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Issue #19171
This commit is contained in:
Jon Leighton 2017-11-23 19:21:44 +01:00
parent ac576910d2
commit a7a5babb3a
5 changed files with 44 additions and 56 deletions
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41
tests/wpt/web-platform-tests/html/semantics/forms/textfieldselection/selection-value-interactions.html
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@ -97,22 +97,31 @@ for (var tag of ['input', 'textarea']) {
var el = document.createElement(tag);
document.body.appendChild(el);
this.add_cleanup(() => el.remove());
el.value = "";
assert_equals(el.selectionStart, el.value.length,
"element.selectionStart should be value.length");
assert_equals(el.selectionEnd, el.value.length,
"element.selectionEnd should be value.length");
el.value = "foo";
assert_equals(el.selectionStart, el.value.length,
"element.selectionStart should be value.length");
assert_equals(el.selectionEnd, el.value.length,
"element.selectionEnd should be value.length");
el.value = "foobar";
assert_equals(el.selectionStart, el.value.length,
"element.selectionStart should be value.length");
assert_equals(el.selectionEnd, el.value.length,
"element.selectionEnd should be value.length");
}, `selection is always collapsed to the end after setting values on ${tag}`);
for (let val of ["", "foo", "foobar"]) {
el.value = val;
assert_equals(el.selectionStart, val.length,
"element.selectionStart should be value.length");
assert_equals(el.selectionEnd, val.length,
"element.selectionEnd should be value.length");
}
}, `selection is collapsed to the end after changing values on ${tag}`);
test(function() {
var el = document.createElement(tag);
document.body.appendChild(el);
this.add_cleanup(() => el.remove());
el.value = "foobar"
el.selectionStart = 2
el.selectionEnd = 4
el.value = "foobar"
assert_equals(el.selectionStart, 2,
"element.selectionStart should be unchanged");
assert_equals(el.selectionEnd, 4,
"element.selectionEnd should be unchanged");
}, `selection is not collapsed to the end when value is set to its existing value on ${tag}`);
}
</script>