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keys.go
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keys.go
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package ui
import (
"context"
"time"
"github.com/cfoust/cy/pkg/geom/tty"
"github.com/cfoust/cy/pkg/taro"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
const KEY_COLUMNS = 10
type Keys struct {
render *taro.Renderer
presses []keyPress
}
type keyPress struct {
stamp time.Time
key string
}
type popKey struct{}
type refresh struct{}
var _ taro.Model = (*Keys)(nil)
func (k *Keys) wait() tea.Msg {
time.Sleep(50 * time.Millisecond)
return refresh{}
}
func (k *Keys) Init() tea.Cmd {
return k.wait
}
func (k *Keys) View(state *tty.State) {
size := state.Image.Size()
bgColor := lipgloss.Color("7")
border := k.render.NewStyle().
Border(lipgloss.NormalBorder()).
BorderForeground(bgColor).
BorderTop(true).
BorderLeft(true).
BorderRight(true).
BorderBottom(true).
Width(size.C).
Height(size.R).
Background(bgColor).
Render("")
k.render.RenderAt(
state.Image,
-1, -2,
border,
)
presses := k.presses
last := len(k.presses) - 1
for i := last; i >= 0; i-- {
press := presses[i]
style := k.render.NewStyle().
Width(size.C - 1).
Background(lipgloss.Color("#EAA549")).
Foreground(lipgloss.Color("#20111B"))
delta := time.Now().Sub(press.stamp)
if delta > 400*time.Millisecond || i != last {
style = k.render.NewStyle().
Foreground(lipgloss.Color("0")).
Background(bgColor)
}
k.render.RenderAt(
state.Image,
last-i,
0,
style.Render(press.key),
)
}
}
func (k *Keys) Update(msg tea.Msg) (taro.Model, tea.Cmd) {
switch msg := msg.(type) {
case refresh:
return k, k.wait
case popKey:
if len(k.presses) == 0 {
return k, nil
}
k.presses = k.presses[1:]
return k, nil
case taro.KeyMsg:
name := msg.String()
if string(msg.Runes) == " " || msg.Type == taro.KeySpace {
name = "space"
}
k.presses = append(k.presses, keyPress{
stamp: time.Now(),
key: name,
})
return k, func() tea.Msg {
time.Sleep(10 * time.Second)
return popKey{}
}
}
return k, nil
}
func NewKeys(
ctx context.Context,
) *taro.Program {
program := taro.New(ctx, &Keys{
render: taro.NewRenderer(),
})
return program
}