104 lines
1.9 KiB
Go
104 lines
1.9 KiB
Go
package widgets
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import (
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"github.com/gdamore/tcell"
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"git.sr.ht/~sircmpwn/aerc/lib/ui"
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)
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type Selecter struct {
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ui.Invalidatable
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chooser bool
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focused bool
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focus int
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options []string
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onChoose func(option string)
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onSelect func(option string)
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}
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func NewSelecter(options []string, focus int) *Selecter {
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return &Selecter{
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focus: focus,
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options: options,
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}
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}
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func (sel *Selecter) Chooser(chooser bool) *Selecter {
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sel.chooser = chooser
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return sel
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}
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func (sel *Selecter) Invalidate() {
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sel.DoInvalidate(sel)
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}
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func (sel *Selecter) Draw(ctx *ui.Context) {
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ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', tcell.StyleDefault)
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x := 2
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for i, option := range sel.options {
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style := tcell.StyleDefault
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if sel.focus == i {
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if sel.focused {
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style = style.Reverse(true)
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} else if sel.chooser {
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style = style.Bold(true)
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}
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}
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x += ctx.Printf(x, 1, style, "[%s]", option)
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x += 5
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}
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}
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func (sel *Selecter) OnChoose(fn func(option string)) *Selecter {
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sel.onChoose = fn
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return sel
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}
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func (sel *Selecter) OnSelect(fn func(option string)) *Selecter {
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sel.onSelect = fn
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return sel
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}
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func (sel *Selecter) Selected() string {
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return sel.options[sel.focus]
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}
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func (sel *Selecter) Focus(focus bool) {
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sel.focused = focus
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sel.Invalidate()
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}
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func (sel *Selecter) Event(event tcell.Event) bool {
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switch event := event.(type) {
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case *tcell.EventKey:
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switch event.Key() {
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case tcell.KeyCtrlH:
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fallthrough
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case tcell.KeyLeft:
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if sel.focus > 0 {
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sel.focus--
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sel.Invalidate()
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}
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if sel.onSelect != nil {
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sel.onSelect(sel.Selected())
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}
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case tcell.KeyCtrlL:
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fallthrough
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case tcell.KeyRight:
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if sel.focus < len(sel.options)-1 {
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sel.focus++
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sel.Invalidate()
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}
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if sel.onSelect != nil {
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sel.onSelect(sel.Selected())
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}
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case tcell.KeyEnter:
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if sel.onChoose != nil {
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sel.onChoose(sel.Selected())
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}
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}
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}
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return false
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}
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