1 files changed, 103 insertions, 0 deletions
diff --git a/widgets/selecter.go b/widgets/selecter.go
new file mode 100644
index 0000000..7fae9cd
--- /dev/null
+++ b/widgets/selecter.go
@@ -0,0 +1,103 @@
+package widgets
+
+import (
+	"github.com/gdamore/tcell"
+
+	"git.sr.ht/~sircmpwn/aerc/lib/ui"
+)
+
+type Selecter struct {
+	ui.Invalidatable
+	chooser bool
+	focused bool
+	focus   int
+	options []string
+
+	onChoose func(option string)
+	onSelect func(option string)
+}
+
+func NewSelecter(options []string, focus int) *Selecter {
+	return &Selecter{
+		focus:   focus,
+		options: options,
+	}
+}
+
+func (sel *Selecter) Chooser(chooser bool) *Selecter {
+	sel.chooser = chooser
+	return sel
+}
+
+func (sel *Selecter) Invalidate() {
+	sel.DoInvalidate(sel)
+}
+
+func (sel *Selecter) Draw(ctx *ui.Context) {
+	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)
+	x := 2
+	for i, option := range sel.options {
+		style := tcell.StyleDefault
+		if sel.focus == i {
+			if sel.focused {
+				style = style.Reverse(true)
+			} else if sel.chooser {
+				style = style.Bold(true)
+			}
+		}
+		x += ctx.Printf(x, 1, style, "[%s]", option)
+		x += 5
+	}
+}
+
+func (sel *Selecter) OnChoose(fn func(option string)) *Selecter {
+	sel.onChoose = fn
+	return sel
+}
+
+func (sel *Selecter) OnSelect(fn func(option string)) *Selecter {
+	sel.onSelect = fn
+	return sel
+}
+
+func (sel *Selecter) Selected() string {
+	return sel.options[sel.focus]
+}
+
+func (sel *Selecter) Focus(focus bool) {
+	sel.focused = focus
+	sel.Invalidate()
+}
+
+func (sel *Selecter) Event(event tcell.Event) bool {
+	switch event := event.(type) {
+	case *tcell.EventKey:
+		switch event.Key() {
+		case tcell.KeyCtrlH:
+			fallthrough
+		case tcell.KeyLeft:
+			if sel.focus > 0 {
+				sel.focus--
+				sel.Invalidate()
+			}
+			if sel.onSelect != nil {
+				sel.onSelect(sel.Selected())
+			}
+		case tcell.KeyCtrlL:
+			fallthrough
+		case tcell.KeyRight:
+			if sel.focus < len(sel.options)-1 {
+				sel.focus++
+				sel.Invalidate()
+			}
+			if sel.onSelect != nil {
+				sel.onSelect(sel.Selected())
+			}
+		case tcell.KeyEnter:
+			if sel.onChoose != nil {
+				sel.onChoose(sel.Selected())
+			}
+		}
+	}
+	return false
+}