LayoutTests/spatial-css/spatial-portal-model-insert-remove.html

<!DOCTYPE html> <!-- webkit-test-runner [ SpatialPortalEnabled=true ModelElementEnabled=true ModelProcessEnabled=true allowTestOnlyIPC=true ] -->
<html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="../resources/ui-helper.js"></script>
<style>
    #portal { spatial: portal; width: 300px; height: 150px; }
</style>
<body>
<div id="portal"></div>
<script>
'use strict';

window.internals?.disableModelLoadDelaysForTesting();

promise_test(async t => {
    const portal = document.getElementById("portal");

    const model = document.createElement("model");
    t.add_cleanup(() => model.remove());

    let loadFired = false;
    model.addEventListener("load", () => loadFired = true, { once: true });
    portal.appendChild(model);

    const source = document.createElement("source");
    source.src = "../model-element/resources/cube.usdz";
    model.appendChild(source);

    await model.ready;
    assert_true(loadFired, "dynamically inserted <model> fires load and ready");
    assert_equals(model.getBoundingClientRect().width, 0, "delegated <model> has no box of its own");
}, "Dynamically inserting a <model> into a spatial portal loads it");

promise_test(async t => {
    const portal = document.getElementById("portal");

    const model = document.createElement("model");
    t.add_cleanup(() => model.remove());

    portal.appendChild(model);
    const source = document.createElement("source");
    source.src = "../model-element/resources/cube.usdz";
    model.appendChild(source);

    await model.ready;
    assert_equals(model.getBoundingClientRect().width, 0, "delegated <model> has no box while inside the portal");

    portal.style.spatial = "none";
    await UIHelper.ensureStablePresentationUpdate();
    assert_greater_than(model.getBoundingClientRect().width, 0, "standalone <model> regains a box of its own");
}, "Removing spatial: portal renders the child model in standalone mode");
</script>
</body>
</html>