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@flaviendelangle flaviendelangle commented Oct 8, 2025

Closes #18740

I'm really not sure it's a good idea 😬 , because the Mozilla doc and the ARIA doc both only talks about true and false, never mixed for role="treeitem"...

image

I found this Github issue on the ARIA repo that seems to be on the same topic.

@flaviendelangle flaviendelangle self-assigned this Oct 8, 2025
@flaviendelangle flaviendelangle added type: enhancement It’s an improvement, but we can’t make up our mind whether it's a bug fix or a new feature. scope: tree view Changes related to the tree view. This includes TreeView, TreeItem. labels Oct 8, 2025
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mui-bot commented Oct 8, 2025

Deploy preview: https://deploy-preview-19851--material-ui-x.netlify.app/

Bundle size report

Bundle Parsed size Gzip size
@mui/x-data-grid 0B(0.00%) 0B(0.00%)
@mui/x-data-grid-pro 0B(0.00%) 0B(0.00%)
@mui/x-data-grid-premium 0B(0.00%) 0B(0.00%)
@mui/x-charts 0B(0.00%) 0B(0.00%)
@mui/x-charts-pro 0B(0.00%) 0B(0.00%)
@mui/x-charts-premium 0B(0.00%) 0B(0.00%)
@mui/x-date-pickers 0B(0.00%) 0B(0.00%)
@mui/x-date-pickers-pro 0B(0.00%) 0B(0.00%)
@mui/x-tree-view 🔺+40B(+0.06%) 🔺+6B(+0.03%)
@mui/x-tree-view-pro 🔺+39B(+0.04%) ▼-5B(-0.02%)

Details of bundle changes

Generated by 🚫 dangerJS against f6f01ef

@flaviendelangle flaviendelangle changed the title [tree view] Use aria-checked instead of aria-selected on items [tree view] Use aria-checked instead of aria-selected on items Oct 8, 2025
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scope: tree view Changes related to the tree view. This includes TreeView, TreeItem. type: enhancement It’s an improvement, but we can’t make up our mind whether it's a bug fix or a new feature.

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[tree view] checkbox indeterminate state missing aria-checked="mixed" for accessibility

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