forked from mirrors/gecko-dev
49 lines
1.1 KiB
JavaScript
49 lines
1.1 KiB
JavaScript
const PAGE = `
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<!doctype html>
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<select style="width: 600px">
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<option>ABC</option>
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<option>DEFG</option>
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</select>
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`;
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function tick() {
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return new Promise(r =>
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requestAnimationFrame(() => requestAnimationFrame(r))
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);
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}
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add_task(async function () {
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const url = "data:text/html," + encodeURI(PAGE);
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await BrowserTestUtils.withNewTab(
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{
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gBrowser,
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url,
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},
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async function () {
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let popup = await openSelectPopup("click");
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let arrowSB = popup.shadowRoot.querySelector(".menupopup-arrowscrollbox");
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is(
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arrowSB.getBoundingClientRect().width,
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600,
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"Should be the right size"
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);
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// Trigger a layout change that would cause us to layout the popup again,
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// and change our menulist to be zero-size so that the anchor rect
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// codepath is used. We should still use the anchor rect to expand our
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// size.
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await tick();
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popup.closest("menulist").style.width = "0";
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popup.style.minWidth = "2px";
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await tick();
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is(
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arrowSB.getBoundingClientRect().width,
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600,
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"Should be the right size"
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);
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}
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);
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});
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