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a11y: clear aria-expanded on empty itemTree rows (#5201)

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Per https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Reference/Attributes/aria-expanded#treeitems
only treeitems that contain children should have
the aria-expanded attribute. This is instead of having
aria-expanded="false" on empty regular items or standalone
attachments, which erroneously indicates to screen readers
that the row has children but is collapsed.

Fixes: #5200
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abaevbog 2025-04-15 22:53:54 -07:00 • committed by GitHub
parent 0bff70b186
commit f568363098
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1 changed files with 4 additions and 1 deletions
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5
chrome/content/zotero/itemTree.jsx
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@ -3167,7 +3167,10 @@ var ItemTree = class ItemTree extends LibraryTree {
// Accessibility
div.setAttribute('role', 'treeitem');
div.setAttribute('aria-level', this.getLevel(index) + 1);
if (!this.isContainerEmpty(index)) {
if (this.isContainerEmpty(index)) {
div.removeAttribute('aria-expanded');
}
else {
div.setAttribute('aria-expanded', this.isContainerOpen(index));
}
if (rowData.contextRow) {