aerc/widgets/selector.go
y0ast 03650474e2 update tcell to v2 and enable TrueColor support
Also update to the tcell v2 PaletteColor api, which should keep the chosen
theme of the user intact.

Note, that if $TRUECOLOR is defined and a truecolor given, aerc will now stop
clipping the value to one of the theme colors.
Generally this is desired behaviour though.
2020-12-18 07:23:22 +01:00

107 lines
2.1 KiB
Go

package widgets
import (
"github.com/gdamore/tcell/v2"
"git.sr.ht/~sircmpwn/aerc/config"
"git.sr.ht/~sircmpwn/aerc/lib/ui"
)
type Selector struct {
ui.Invalidatable
chooser bool
focused bool
focus int
options []string
uiConfig config.UIConfig
onChoose func(option string)
onSelect func(option string)
}
func NewSelector(options []string, focus int, uiConfig config.UIConfig) *Selector {
return &Selector{
focus: focus,
options: options,
uiConfig: uiConfig,
}
}
func (sel *Selector) Chooser(chooser bool) *Selector {
sel.chooser = chooser
return sel
}
func (sel *Selector) Invalidate() {
sel.DoInvalidate(sel)
}
func (sel *Selector) Draw(ctx *ui.Context) {
ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ',
sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT))
x := 2
for i, option := range sel.options {
style := sel.uiConfig.GetStyle(config.STYLE_SELECTOR_DEFAULT)
if sel.focus == i {
if sel.focused {
style = sel.uiConfig.GetStyle(config.STYLE_SELECTOR_FOCUSED)
} else if sel.chooser {
style = sel.uiConfig.GetStyle(config.STYLE_SELECTOR_CHOOSER)
}
}
x += ctx.Printf(x, 1, style, "[%s]", option)
x += 5
}
}
func (sel *Selector) OnChoose(fn func(option string)) *Selector {
sel.onChoose = fn
return sel
}
func (sel *Selector) OnSelect(fn func(option string)) *Selector {
sel.onSelect = fn
return sel
}
func (sel *Selector) Selected() string {
return sel.options[sel.focus]
}
func (sel *Selector) Focus(focus bool) {
sel.focused = focus
sel.Invalidate()
}
func (sel *Selector) 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
}