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<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" href="mailto:masonf@chromium.org">
<link rel=help href="https://open-ui.org/components/popover.research.explainer">
<link rel=help href="https://html.spec.whatwg.org/multipage/popover.html">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/declarative-shadow-dom-polyfill.js"></script>
<script src="resources/popover-utils.js"></script>
<script>
function ensureShadowDom(host) {
host.querySelectorAll('my-element').forEach(host => {
if (host.shadowRoot)
return; // Declarative Shadow DOM is enabled
const template = host.firstElementChild;
assert_true(template instanceof HTMLTemplateElement);
const shadow = host.attachShadow({mode: 'open'});
shadow.appendChild(template.content);
template.remove();
})
}
function findPopovers(root) {
let popovers = [];
if (!root)
return popovers;
if (root instanceof Element && root.matches('[popover]'))
popovers.push(root);
popovers.push(...findPopovers(root.shadowRoot));
root.childNodes.forEach(child => {
popovers.push(...findPopovers(child));
})
return popovers;
}
function getPopoverReferences(testId) {
const testRoot = document.querySelector(`#${testId}`);
assert_true(!!testRoot);
ensureShadowDom(testRoot);
return findPopovers(testRoot);
}
function showTestPopover(testId,popoverNum) {
getPopoverReferences(testId)[popoverNum].showPopover();
}
</script>
<div id=test1>
<button onclick='showTestPopover("test1",0)'>Test1 Popover</button>
<my-element>
<template shadowrootmode=open>
<div popover>
<p>This should show, even though it is inside shadow DOM.</p>
</div>
</template>
</my-element>
</div>
<script>
test(function() {
const popover = getPopoverReferences('test1')[0];
popover.showPopover();
assert_true(popover.matches(':popover-open'));
assert_true(isElementVisible(popover));
popover.hidePopover(); // Cleanup
}, "Popovers located inside shadow DOM can still be shown");
</script>
<div id=test2>
<button id=t2b1 onclick='showTestPopover("test2",0)'>Test 2 Popover 1</button>
<div popover anchor=t2b1 style="top: 200px;">
<p>Popover 1</p>
<button id=t2b2 onclick='showTestPopover("test2",1)'>Test 2 Popover 2</button>
</div>
<my-element>
<template shadowrootmode=open>
<div popover anchor=t2b2 style="top: 400px;">
<p>Hiding this popover will hide *all* open popovers,</p>
<p>because t2b2 doesn't exist in this context.</p>
</div>
</template>
</my-element>
</div>
<script>
test(function() {
const [popover1,popover2] = getPopoverReferences('test2');
popover1.showPopover();
assert_true(popover1.matches(':popover-open'));
assert_true(isElementVisible(popover1));
popover2.showPopover();
assert_false(popover1.matches(':popover-open'), 'popover1 open'); // P1 was closed by P2
assert_false(isElementVisible(popover1), 'popover1 visible');
assert_true(popover2.matches(':popover-open'), 'popover2 open'); // P2 is open
assert_true(isElementVisible(popover2), 'popover2 visible');
popover2.hidePopover(); // Cleanup
}, "anchor references do not cross shadow boundaries");
</script>
<div id=test3>
<my-element>
<template shadowrootmode=open>
<button id=t3b1 onclick='showTestPopover("test3",0)'>Test 3 Popover 1</button>
<div popover anchor=t3b1>
<p>This popover will stay open when popover2 shows.</p>
<slot></slot>
</div>
</template>
<button id=t3b2 onclick='showTestPopover("test3",1)'>Test 3 Popover 2</button>
</my-element>
<div popover anchor=t3b2>Popover 2</div>
</div>
<script>
promise_test(async function() {
const [popover1,popover2] = getPopoverReferences('test3');
popover1.showPopover();
assert_true(popover1.matches(':popover-open'));
assert_true(isElementVisible(popover1));
// Showing popover2 should not close popover1, since it is a flat
// tree ancestor of popover2's anchor button.
popover2.showPopover();
assert_true(popover2.matches(':popover-open'));
assert_true(isElementVisible(popover2));
assert_true(popover1.matches(':popover-open'));
assert_true(isElementVisible(popover1));
popover1.hidePopover();
await waitForRender();
assert_false(popover1.matches(':popover-open'));
assert_false(isElementVisible(popover1));
assert_false(popover2.matches(':popover-open'));
assert_false(isElementVisible(popover2));
}, "anchor references use the flat tree not the DOM tree");
</script>
<div id=test4>
<button id=t4b1 onclick='showTestPopover("test4",0)'>Test 4 Popover 1</button>
<div popover anchor=t4b1>
<p>This should not get hidden when popover2 opens.</p>
<my-element>
<template shadowrootmode=open>
<button id=t4b2 onclick='showTestPopover("test4",1)'>Test 4 Popover 2</button>
<div popover anchor=t4b2>
<p>This should not hide popover1.</p>
</div>
</template>
</my-element>
</div>
</div>
<script>
promise_test(async function() {
const [popover1,popover2] = getPopoverReferences('test4');
popover1.showPopover();
popover2.showPopover();
// Both 1 and 2 should be open at this point.
assert_true(popover1.matches(':popover-open'), 'popover1 not open');
assert_true(isElementVisible(popover1));
assert_true(popover2.matches(':popover-open'), 'popover2 not open');
assert_true(isElementVisible(popover2));
// This should hide both of them.
popover1.hidePopover();
await waitForRender();
assert_false(popover1.matches(':popover-open'));
assert_false(isElementVisible(popover1));
assert_false(popover2.matches(':popover-open'));
assert_false(isElementVisible(popover2));
}, "The popover stack is preserved across shadow-inclusive ancestors");
</script>
<div id=test5>
<template shadowrootmode=open>
<button popovertarget=p1>Test 5 Popover 1</button>
<div popover id=p1>Popover 1
<p>This should not get hidden when popover2 opens.</p>
<button popovertarget=p2>Click</button>
</div>
<div popover id=p2>Popover 2
<p>This should not hide popover1.</p>
</div>
</template>
</div>
<script>
promise_test(async function() {
polyfill_declarative_shadow_dom(test5);
const [popover1,popover2] = getPopoverReferences('test5');
popover1.showPopover();
popover1.querySelector('button').click(); // Use invoker to keep 2 visible
// Both 1 and 2 should be open at this point.
assert_true(popover1.matches(':popover-open'), 'popover1 not open');
assert_true(isElementVisible(popover1));
assert_true(popover2.matches(':popover-open'), 'popover2 not open');
assert_true(isElementVisible(popover2));
// This should hide both of them.
popover1.hidePopover();
await waitForRender();
assert_false(popover1.matches(':popover-open'));
assert_false(isElementVisible(popover1));
assert_false(popover2.matches(':popover-open'));
assert_false(isElementVisible(popover2));
}, "Popover ancestor relationships are within a root, not within the document");
</script>
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