popover-overlay.html

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This test has a WPT meta file that expects 4 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/popovers/popover-overlay.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>popover: overlay</title>

<link rel="help" href="https://html.spec.whatwg.org/multipage/popover.html#the-popover-attribute">

<link rel="help" href="https://drafts.csswg.org/css-position-4/#overlay">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<dialog popover id="popover-show-dialog"></dialog>

<dialog popover id="popover-show-modal-dialog"></dialog>

<dialog popover id="popover-dialog"></dialog>

<div popover id="popover-div"></div>

<script>

  test(() => {

    const popover_show_dialog = document.getElementById("popover-show-dialog");

    assert_equals(getComputedStyle(popover_show_dialog).overlay, "none",

                  "Computed overlay");

    popover_show_dialog.show();

    assert_equals(getComputedStyle(popover_show_dialog).overlay, "none",

                  "Computed overlay after show()");

    popover_show_dialog.close();

  }, "dialog.show() should not put popover dialog in top layer");

  test(() => {

    const popover_show_modal_dialog = document.getElementById("popover-show-modal-dialog");

    assert_equals(getComputedStyle(popover_show_modal_dialog).overlay, "none",

                  "Computed overlay");

    popover_show_modal_dialog.showModal();

    assert_equals(getComputedStyle(popover_show_modal_dialog).overlay, "auto",

                  "Computed overlay after showModal()");

    popover_show_modal_dialog.close();

  }, "dialog.showModal() should put popover dialog in top layer");

  test(() => {

    const popover_dialog = document.getElementById("popover-dialog");

    assert_equals(getComputedStyle(popover_dialog).overlay, "none",

                  "Computed overlay");

    popover_dialog.showPopover();

    assert_equals(getComputedStyle(popover_dialog).overlay, "auto",

                  "Computed overlay after showPopover()");

    popover_dialog.hidePopover();

  }, "dialog.showPopover() should put popover dialog in top layer");

  test(() => {

    const popover_div = document.getElementById("popover-div");

    assert_equals(getComputedStyle(popover_div).overlay, "none",

                  "Computed overlay");

    popover_div.showPopover();

    assert_equals(getComputedStyle(popover_div).overlay, "auto",

                  "Computed overlay after showPopover()");

    popover_div.hidePopover();

  }, "div.showPopover() should put popover div in top layer");

</script>