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<!DOCTYPE HTML>
<html>
<title>Dynamic change datalist</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="satchel_common.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css" />
<input list="suggest" type="text" name="field1">
<datalist id="suggest">
<option value="a1">
<option value="a2">
<option value="ab1">
<option value="ab2">
</datalist>
<pre id="test">
<script class="testbody">
const { TestUtils } = SpecialPowers.Cu.import("resource://testing-common/TestUtils.jsm");
const input = document.querySelector("input");
const datalist = document.querySelector("datalist");
const DATALIST_DATA = {
"a": ["a1", "a2", "ab1", "ab2"],
"ab": ["ab1", "ab2", "abc1", "abc2"],
"abc": ["abc1", "abc2", "abcd1", "abcd2"],
"abcd": ["abcd1", "abcd2", "abcde1", "abcde2", "abcde3"]
};
var resolvePopupShownListener;
registerPopupShownListener(() => resolvePopupShownListener());
function waitPopup() {
return new Promise(resolve => { resolvePopupShownListener = resolve; });
}
add_task(async function() {
async function inputHandler() {
let options = DATALIST_DATA[input.value] || [];
await TestUtils.waitForTick();
while (datalist.firstChild) {
datalist.firstChild.remove();
}
for (let option of options) {
let element = document.createElement("option");
element.setAttribute("value", option);
datalist.appendChild(element);
}
}
await SimpleTest.promiseFocus();
input.addEventListener("input", inputHandler);
input.focus();
synthesizeKey("a");
synthesizeKey("b");
synthesizeKey("c");
is(input.value, "abc", "<input>'s value has to be abc for initial data");
synthesizeKey("KEY_ArrowDown");
await waitPopup();
let values = getMenuEntries();
is(values.length, 4, "expected count of datalist popup");
for (let i = 0; i < values.length; i++) {
is(values[i], DATALIST_DATA[input.value][i], "expected data #" + i);
}
let promise = notifyMenuChanged(5);
synthesizeKey("d");
is(input.value, "abcd", "<input>'s value has to be abcd for next test");
synthesizeKey("KEY_ArrowDown");
await promise;
values = getMenuEntries();
is(values.length, 5, "expected count of datalist popup");
for (let i = 0; i < values.length; i++) {
is(values[i], DATALIST_DATA[input.value][i], "expected data #" + i);
}
synthesizeKey("KEY_ArrowDown");
synthesizeKey("KEY_Enter");
is(input.value, "abcd1", "<input>'s value has to set abcd1");
input.removeEventListener("input", inputHandler);
});
</script>
</pre>
</html>
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