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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
}
|
