feat!(viewport): width and height are now optional args in New()

table/table.go

@@ -132,7 +132,7 @@ type Option func(*Model)
 func New(opts ...Option) Model {
 	m := Model{
 		cursor:   0,
-		viewport: viewport.New(0, 20), //nolint:mnd
+		viewport: viewport.New(viewport.WithHeight(20)), //nolint:mnd
 
 		KeyMap: DefaultKeyMap(),
 		Help:   help.New(),

textarea/textarea.go

@@ -286,7 +286,7 @@ type Model struct {
 
 // New creates a new model with default settings.
 func New() Model {
-	vp := viewport.New(0, 0)
+	vp := viewport.New()
 	vp.KeyMap = viewport.KeyMap{}
 	cur := cursor.New()
 

viewport/viewport.go

@@ -9,11 +9,34 @@ import (
 	"github.com/charmbracelet/lipgloss/v2"
 )
 
+// Option is a configuration option that works in conjunction with [New]. For
+// example:
+//
+//	timer := New(WithWidth(10, WithHeight(5)))
+type Option func(*Model)
+
+// WithWidth is an initialization option that sets the width of the
+// viewport. Pass as an argument to [New].
+func WithWidth(w int) Option {
+	return func(m *Model) {
+		m.Width = w
+	}
+}
+
+// WithHeight is an initialization option that sets the height of the
+// viewport. Pass as an argument to [New].
+func WithHeight(h int) Option {
+	return func(m *Model) {
+		m.Height = h
+	}
+}
+
 // New returns a new model with the given width and height as well as default
 // key mappings.
-func New(width, height int) (m Model) {
-	m.Width = width
-	m.Height = height
+func New(opts ...Option) (m Model) {
+	for _, opt := range opts {
+		opt(&m)
+	}
 	m.setInitialValues()
 	return m
 }