Add a secure option for text inputs

ebitenui · Dec 27, 2020 · 0e9d995 · 0e9d995
1 parent ee48700
commit 0e9d995
Showing 1 changed file with 15 additions and 2 deletions.
diff --git a/widget/textinput.go b/widget/textinput.go
@@ -4,6 +4,7 @@ import (
 	img "image"
 	"image/color"
 	"math"
+	"strings"
 	"sync/atomic"
 	"time"
 
@@ -42,6 +43,7 @@ type TextInput struct {
 	scrollOffset   int
 	focused        bool
 	lastInputText  string
+	secure         bool
 }
 
 type TextInputOpt func(t *TextInput)
@@ -186,6 +188,12 @@ func (o TextInputOptions) Placeholder(s string) TextInputOpt {
 	}
 }
 
+func (o TextInputOptions) Secure(b bool) TextInputOpt {
+	return func(t *TextInput) {
+		t.secure = b
+	}
+}
+
 func (t *TextInput) GetWidget() *Widget {
 	t.init.Do()
 	return t.widget
@@ -426,9 +434,14 @@ func (t *TextInput) drawTextAndCaret(screen *ebiten.Image, def DeferredRenderFun
 	tr := rect
 	tr = tr.Add(img.Point{t.padding.Left, t.padding.Top})
 
+	inputStr := t.InputText
+	if t.secure {
+		inputStr = strings.Repeat("*", len(t.InputText))
+	}
+
 	cx := 0
 	if t.focused {
-		sub := string([]rune(t.InputText)[:t.cursorPosition])
+		sub := string([]rune(inputStr)[:t.cursorPosition])
 		cx = fontAdvance(sub, t.face)
 
 		dx := tr.Min.X + t.scrollOffset + cx + t.caret.Width + t.padding.Right - rect.Max.X
@@ -446,7 +459,7 @@ func (t *TextInput) drawTextAndCaret(screen *ebiten.Image, def DeferredRenderFun
 
 	t.text.SetLocation(tr)
 	if len([]rune(t.InputText)) > 0 {
-		t.text.Label = t.InputText
+		t.text.Label = inputStr
 	} else {
 		t.text.Label = t.placeholderText
 	}