context menu based on NSTableViewCell

Question

i would like to place a context menu onto a NSTableView. this part is done. what i would liek to do is to show different menu entries based on the content of the ri

Answer 1

This is the easiest method for a custom/dynamic NSMenu I found, that also preserves the system look (the blue selection border). Subclass NSTableView and set your menu in menu(for:).

The important part is to set the menu on the table view, but return the menu from its super call.

override func menu(for event: NSEvent) -> NSMenu? {
    let point = convert(event.locationInWindow, from: nil)
    let clickedRow = self.row(at: point)
    var menuRows = selectedRowIndexes

    // The blue selection box should always reflect the
    // returned row indexes.
    if menuRows.isEmpty || !menuRows.contains(clickedRow) {
        menuRows = [clickedRow]
    }

    // Build your custom menu based on the menuRows indexes
    self.menu = <#myMenu#>

    return super.menu(for: event)
}