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[Gecko Bug 1898833] Support oncontentvisibilityautostatechange event handler #47216

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merged 1 commit into from
Jul 22, 2024
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[Gecko Bug 1898833] Support oncontentvisibilityautostatechange event handler #47216

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12 changes: 12 additions & 0 deletions css/css-contain/content-visibility/content-visibility-auto-state-changed.html
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Original file line number Diff line number Diff line change
Expand Up @@ -24,16 +24,22 @@

<script>
let contentattrfired = false;
let contentattrfiredonsvg = false;

function contentattrDidFire() {
contentattrfired = true;
}

function contentattrDidFireOnSvg() {
contentattrfiredonsvg = true;
}

</script>

<div id=upper></div>
<div id=attrtest></div>
<div id=contentattrtest oncontentvisibilityautostatechange="contentattrDidFire()" class=auto></div>
<svg id="svgcontentattrtest" oncontentvisibilityautostatechange="contentattrDidFireOnSvg()" class="auto"></svg>
<div class=spacer></div>
<div id=middle></div>
<div class=spacer></div>
Expand Down Expand Up @@ -83,6 +89,12 @@
assert_true(contentattrfired, "contentattrfired");
}, "ContentVisibilityAutoStateChange content attribute test");


promise_test(async t => {
await waitForAtLeastOneFrame();
assert_true(contentattrfiredonsvg, "contentattrfiredonsvg");
}, "ContentVisibilityAutoStateChange content attribute test on svg");

promise_test(t => new Promise(async (resolve, reject) => {
await new Promise((waited, _) => {
requestAnimationFrame(() => requestAnimationFrame(waited));
Expand Down