Class SelectionManagerInternal

Get selected elements (readonly interface property)

Select an item (optionally adding to existing selection)

Toggle selection of an item

If the item is selected, it is deselected. Otherwise the item is selected; pass additive = true to keep the existing selection (multi-select behaviour) or leave it false to replace any current selection with just this item (single-select behaviour).

Deselect an item

Select a range of items (for Shift+Click functionality)

Clear all selections

Get all selected items

Check if an item is selected

Get the count of selected items

Set focus to an item (for keyboard navigation)

Get the currently focused item

Get the last selected item

Clear focus from all items

Move focus to the next item

Move focus to the previous item

Cleanup and remove all event listeners