room

type Mark struct {
	Seq    uint64
	Author int
	Name   string
	Color  int
	Kind   sheet.OpKind
	Label  string
	Sheet  *sheet.Sheet
	Rect   sheet.Rect
	At     time.Time
}

type Mode int

type Participant interface {
	// Name is who they are to the others: the SSH user of a session.
	Name() string
	// Notify tells them the room changed: someone else's operations,
	// where the others are, who writes, a save, a message posted for
	// them. It's called with the room locked, so it must neither block
	// nor call back into the room: they look at what changed on their
	// next turn (Seat.Do).
	Notify()
}

type Peer struct {
	ID       int
	Name     string
	Color    int
	Presence Presence
	Writing  bool
	Joined   time.Time
}

type Presence struct {
	Sheet     *sheet.Sheet
	Cursor    sheet.Addr
	Selection sheet.Rect
	Editing   bool // typing into the cell at Cursor
}

type Registry struct {
	// contains filtered or unexported fields
}

type Room struct {
	// contains filtered or unexported fields
}

type Saved struct {
	State   int    // the workbook's StateID then
	Outputs int    // its OutputsChanged then
	Name    string // the file's name, as typed, "" for none
	Key     string // the file's room key, its path: the room is its room too
	Stamp   any    // the file on disk then, the UI's to compare
}

type Seat struct {
	// contains filtered or unexported fields
}