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<!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>
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