Command Popover with Separators for React

The Search Files button is the trigger, and the panel opens below it, lined up with its start edge. The panel is 400px wide, never wider than the screen, and has no padding, so the Command fills it. A visually hidden PopoverTitle names it. PopoverTrigger renders the button through render, and PopoverContent sets align="start".

A CommandSeparator goes before every group but the first, so the lines fall after Recent and after Folders. Each group keeps its own heading: Recent, Folders and Media.

Every CommandItem starts with a decorative icon, then a span for the name: Document.pdf, Photo.jpg, Projects, Documents, Video.mp4 and Song.mp3. The icons are File, Image, Folder (twice), Video and Music.

CommandEmpty in the list says "No files found." It shows only when the search leaves nothing.

These items don't run anything yet. Pass onSelect to each CommandItem.

The arrow keys move through the items, Enter runs the highlighted one, and typing filters the list. Escape or a click outside closes the popover, and focus goes back to the button. CommandInput shows "Search files..." until someone types. Command filters and ranks the items by their text on its own.