mirror of
https://github.com/anotherhadi/ilovetui.git
synced 2026-08-21 12:05:49 +02:00
Hadi
133 lines
2.8 KiB
Go
133 lines
2.8 KiB
Go
package helpbar
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import (
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"strings"
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"charm.land/bubbles/v2/help"
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"charm.land/bubbles/v2/key"
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tea "charm.land/bubbletea/v2"
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"charm.land/lipgloss/v2"
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"github.com/charmbracelet/x/ansi"
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"github.com/anotherhadi/ilovetui/bubbles"
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)
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type Model struct {
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ShowAll bool
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help help.Model
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global []key.Binding
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toggle key.Binding
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width int
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}
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type Option func(*Model)
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func WithGlobal(bindings ...key.Binding) Option {
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return func(m *Model) { m.global = bindings }
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}
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func WithToggle(b key.Binding) Option {
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return func(m *Model) { m.toggle = b }
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}
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func WithStyles(s help.Styles) Option {
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return func(m *Model) { m.help.Styles = s }
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}
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func New(opts ...Option) Model {
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m := Model{help: bubbles.NewHelp()}
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for _, opt := range opts {
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opt(&m)
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}
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return m
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}
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func (m *Model) SetWidth(w int) {
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m.width = w
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m.help.SetWidth(w)
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}
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func (m Model) Width() int { return m.width }
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func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
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if keyMsg, ok := msg.(tea.KeyPressMsg); ok && key.Matches(keyMsg, m.toggle) {
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m.ShowAll = !m.ShowAll
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}
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return m, nil
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}
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func (m Model) View(contextual ...key.Binding) string {
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bindings := m.bindings(contextual)
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if len(bindings) == 0 || m.width <= 0 {
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return ""
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}
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var view string
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if !m.ShowAll {
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view = m.help.ShortHelpView(bindings)
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} else {
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view = m.help.FullHelpView(m.columns(bindings))
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}
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return m.clampWidth(view)
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}
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func (m Model) clampWidth(view string) string {
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lines := strings.Split(view, "\n")
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for i, line := range lines {
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lines[i] = ansi.Truncate(line, m.width, "")
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}
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return strings.Join(lines, "\n")
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}
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func (m Model) Height(contextual ...key.Binding) int {
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view := m.View(contextual...)
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if view == "" {
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return 0
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}
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return lipgloss.Height(view)
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}
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func (m Model) bindings(contextual []key.Binding) []key.Binding {
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all := make([]key.Binding, 0, 1+len(m.global)+len(contextual))
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if m.toggle.Enabled() {
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all = append(all, m.toggle)
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}
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for _, b := range append(append([]key.Binding{}, m.global...), contextual...) {
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if b.Enabled() {
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all = append(all, b)
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}
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}
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return all
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}
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func (m Model) columns(bindings []key.Binding) [][]key.Binding {
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if m.width <= 0 {
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return [][]key.Binding{bindings}
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}
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for rows := 1; rows < len(bindings); rows++ {
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groups := chunkColumns(bindings, rows)
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if m.renderedWidth(groups) <= m.width {
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return groups
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}
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}
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return chunkColumns(bindings, len(bindings))
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}
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func (m Model) renderedWidth(groups [][]key.Binding) int {
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unbounded := m.help
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unbounded.SetWidth(0)
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return lipgloss.Width(unbounded.FullHelpView(groups))
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}
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func chunkColumns(bindings []key.Binding, rows int) [][]key.Binding {
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if rows < 1 {
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rows = 1
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}
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groups := make([][]key.Binding, 0, (len(bindings)+rows-1)/rows)
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for i := 0; i < len(bindings); i += rows {
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groups = append(groups, bindings[i:min(i+rows, len(bindings))])
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}
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return groups
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}
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