perf(textinput): use uniseg.StringWidth

textinput/textinput.go

@@ -13,6 +13,7 @@ import (
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/lipgloss"
 	rw "github.com/mattn/go-runewidth"
+	"github.com/rivo/uniseg"
 )
 
 // Internal messages for clipboard operations.
@@ -332,7 +333,7 @@ func (m *Model) insertRunesFromUserInput(v []rune) {
 // If a max width is defined, perform some logic to treat the visible area
 // as a horizontally scrolling viewport.
 func (m *Model) handleOverflow() {
-	if m.Width <= 0 || rw.StringWidth(string(m.value)) <= m.Width {
+	if m.Width <= 0 || uniseg.StringWidth(string(m.value)) <= m.Width {
 		m.offset = 0
 		m.offsetRight = len(m.value)
 		return
@@ -541,7 +542,7 @@ func (m *Model) wordForward() {
 func (m Model) echoTransform(v string) string {
 	switch m.EchoMode {
 	case EchoPassword:
-		return strings.Repeat(string(m.EchoCharacter), rw.StringWidth(v))
+		return strings.Repeat(string(m.EchoCharacter), uniseg.StringWidth(v))
 	case EchoNone:
 		return ""
 	case EchoNormal:
@@ -688,7 +689,7 @@ func (m Model) View() string {
 
 	// If a max width and background color were set fill the empty spaces with
 	// the background color.
-	valWidth := rw.StringWidth(string(value))
+	valWidth := uniseg.StringWidth(string(value))
 	if m.Width > 0 && valWidth <= m.Width {
 		padding := max(0, m.Width-valWidth)
 		if valWidth+padding <= m.Width && pos < len(value) {