Command Palette Navbar Block for React

Edit NOTES and OTHERS at the top of the file: each row has a group, an icon, a label, a value and, optionally, a key. choose(value) is the one place a row does its work: pages set the current page, notes move to the top of recent, and every choice updates the hidden status line. Replace its body with your router (router.push) and your actions. The page links in the bar and the sheet call the same function, so the bar and the palette never disagree about the current page.

The caps render the Apple key first, so the server and the first client render match, and swap to Ctrl after mount when the browser's user agent isn't an Apple device. The shortcut itself accepts both Command and Control with K on every device, and the button declares both with aria-keyshortcuts. The caps are hidden below the sm breakpoint, where there is rarely a keyboard.

Yes. A document listener runs a row's key when no modifier is held, the palette is closed and the keyboard isn't in an input, a textarea, a select or an editable element, so typing "i" in the palette's own field only searches. Command or Control with K opens the palette from anywhere, including a text field.

The button says whether the palette is open (aria-expanded) and which element it controls (aria-controls). The palette is a modal dialog named Command palette: focus moves to its field, the arrow keys move through the rows, Enter chooses one and Escape closes it, and focus returns to the button that opened it (or to the visible one when the shortcut did). The rows are options of a listbox that filters by substring over each row's label and group; the block returns focus to the button one tick after the dialog closes.

Below the md breakpoint the field-looking button becomes an icon button that opens the same palette, and below lg a menu button opens a sheet from the top whose header lines up with the bar, with the four links and Get Notehelm (the bar's own button hides below sm). Choosing a link closes the sheet and Escape returns focus to the menu button. Nothing wraps at 320 pixels, and the palette fits the screen.

Every link points at #: point them at your pages. Get Notehelm renders the link it's given with render, with nativeButton={false}. To keep the bar in view while the page scrolls, add sticky top-0 z-40 bg-background/80 backdrop-blur to the header; its top rule is the page's first line and it draws no bottom border.