<!DOCTYPE html>
<script src="../../../resources/js-test-pre.js"></script>
<body>
<video src="../../content/CC+Subtitles.mov" style="width: 640px; height: 360px;" controls autoplay></video>
<script type="text/javascript">

window.jsTestIsAsync = true;

description("Showing and populating the tracks panel.");

const media = document.querySelector("video");
const shadowRoot = window.internals.shadowRoot(media);

media.addEventListener("play", () => {
    media.pause();
    window.requestAnimationFrame(() => {
        clickOnTracksButton();
        window.requestAnimationFrame(() => {
            listContentsOfTracksPanel();
            media.remove();
            finishJSTest();
        });
    });
});

function clickOnTracksButton()
{
    const bounds = shadowRoot.lastChild.querySelector("button.tracks").getBoundingClientRect();
    eventSender.mouseMoveTo(bounds.left + 1, bounds.top + 1);
    eventSender.mouseDown();
    eventSender.mouseUp();
}

function listContentsOfTracksPanel()
{
    for (let section of shadowRoot.lastChild.querySelectorAll("section")) {
        debug(section.querySelector("h3").textContent);
        for (let item of section.querySelectorAll("li"))
            debug("  " + item.textContent);
        debug("");
    }
}

</script>
<script src="../../../resources/js-test-post.js"></script>
</body>