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package slider
import (
"fmt"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/progress"
tea "github.com/charmbracelet/bubbletea"
)
type Model struct {
label byte
progress progress.Model
max int
current int
mappings keybinds
}
func New(label byte, maxVal int, opts ...progress.Option) Model {
slider := Model{
label: label,
progress: progress.New(
progress.WithoutPercentage(),
),
max: maxVal,
current: maxVal / 2,
mappings: newKeybinds(),
}
for _, opt := range opts {
opt(&slider.progress)
}
return slider
}
func (m Model) Title() string { return fmt.Sprintf("%c", m.label) }
func (m Model) Init() tea.Cmd {
// Triggering a frame message Update here will force the progress bar to
// render immediately. This is necessary because progress bars only render
// when their state changes. Without this, there is a disrepancy between
// the initial state of the progress bar and the initial state of the slider.
// There's no sugar-coating it: This is a hack. But it works...
_, cmd := m.Update(progress.FrameMsg{})
return cmd
}
func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
cmds := []tea.Cmd{}
keys := newKeybinds()
switch msg := msg.(type) {
case tea.KeyMsg:
switch {
case key.Matches(msg, keys.incRegular):
m.IncPcnt(0.05)
case key.Matches(msg, keys.decRegular):
m.DecPcnt(0.05)
case key.Matches(msg, keys.incPrecise):
m.Inc(1)
case key.Matches(msg, keys.decPrecise):
m.Dec(1)
}
return m, m.progress.SetPercent(m.Pcnt())
case progress.FrameMsg:
if m.progress.Percent() != m.Pcnt() {
cmds = append(cmds, m.progress.SetPercent(m.Pcnt()))
}
progressModel, cmd := m.progress.Update(msg)
m.progress = progressModel.(progress.Model)
cmds = append(cmds, cmd)
default:
}
return m, tea.Batch(cmds...)
}
func (m Model) ViewValue(current int) string {
return fmt.Sprintf("(%3d/%d)", current, m.max)
}
func (m Model) View() string {
return fmt.Sprintf("%v: %v %v", m.Title(), m.progress.View(), m.ViewValue(m.current))
}
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