<!DOCTYPE html><!-- webkit-test-runner [ useFlexibleViewport=true ] -->
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="../../resources/js-test.js"></script>
<script src="../../resources/ui-helper.js"></script>
<style>
button {
    margin-bottom: 8000px;
}
</style>
</head>
<body>
    <div><button id="focus">Focus <code>select</code></button></div>
    <select name="select">
        <option value="1">First</option>
        <option value="2">Second</option>
    </select>
</body>
<script>
jsTestIsAsync = true;
description("Verifies that programmatically focusing a select element with <code>preventScroll: true</code> does not cause the page to scroll. To run the test manually, tap or click the button and check that the page does not scroll to the bottom.");

let focusButton = document.getElementById("focus");
select = document.querySelector("select");

focusButton.addEventListener("click", event => {
    event.preventDefault();
    select.focus({ preventScroll: true });
    if (!window.testRunner) {
        checkScrollOffsetAndFocusedElement();
        finishJSTest();
    }
});

function checkScrollOffsetAndFocusedElement() {
    shouldBe("document.activeElement", "select");
    shouldBe("pageYOffset", "0");
}

addEventListener("load", async () => {
    if (!window.testRunner)
        return;

    await UIHelper.activateElementAndWaitForInputSession(focusButton);
    shouldBe("document.activeElement", "select");
    shouldBe("pageYOffset", "0");
    document.activeElement.blur();
    await UIHelper.waitForInputSessionToDismiss();
    finishJSTest();
});
</script>
</html>