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https://github.com/charmbracelet/gum.git
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feat(choose): Add paginator to chooser
Display paginator only if number of options > height specified
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parent
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commit
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@ -14,6 +14,7 @@ package choose
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import (
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"strings"
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"github.com/charmbracelet/bubbles/paginator"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/charmbracelet/lipgloss"
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"github.com/mattn/go-runewidth"
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@ -21,7 +22,6 @@ import (
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type model struct {
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height int
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page int
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cursor string
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selectedPrefix string
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unselectedPrefix string
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@ -31,6 +31,7 @@ type model struct {
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index int
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limit int
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numSelected int
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paginator paginator.Model
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// styles
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cursorStyle lipgloss.Style
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@ -51,27 +52,24 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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return m, nil
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case tea.KeyMsg:
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start, end := m.paginator.GetSliceBounds(len(m.items))
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switch keypress := msg.String(); keypress {
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case "down", "j", "ctrl+n":
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m.index = (m.index + 1) % len(m.items)
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m.page = m.index / m.height
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m.index = clamp(m.index+1, 0, len(m.items)-1)
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if m.index >= end {
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m.paginator.NextPage()
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}
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case "up", "k", "ctrl+p":
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m.index = (m.index - 1 + len(m.items)) % len(m.items)
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m.page = m.index / m.height
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m.index = clamp(m.index-1, 0, len(m.items)-1)
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if m.index <= start {
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m.paginator.PrevPage()
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}
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case "right", "l", "ctrl+f":
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if m.index+m.height < len(m.items) {
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m.index += m.height
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} else {
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if m.page < len(m.items)/m.height {
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m.index = len(m.items) - 1
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}
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}
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m.page = m.index / m.height
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m.index = clamp(m.index+m.height, 0, len(m.items)-1)
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m.paginator.NextPage()
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case "left", "h", "ctrl+b":
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if m.index-m.height >= 0 {
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m.index -= m.height
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}
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m.page = m.index / m.height
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m.index = clamp(m.index-m.height, 0, len(m.items)-1)
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m.paginator.PrevPage()
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case "ctrl+c":
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m.quitting = true
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return m, tea.Quit
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@ -98,7 +96,9 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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}
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}
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return m, nil
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var cmd tea.Cmd
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m.paginator, cmd = m.paginator.Update(msg)
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return m, cmd
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}
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func (m model) View() string {
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@ -108,7 +108,8 @@ func (m model) View() string {
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var s strings.Builder
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for i, item := range m.items[clamp(m.page*m.height, 0, len(m.items)):clamp((m.page+1)*m.height, 0, len(m.items))] {
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start, end := m.paginator.GetSliceBounds(len(m.items))
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for i, item := range m.items[start:end] {
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if i == m.index%m.height {
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s.WriteString(m.cursorStyle.Render(m.cursor))
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} else {
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@ -122,9 +123,18 @@ func (m model) View() string {
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} else {
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s.WriteString(m.itemStyle.Render(m.unselectedPrefix + item.text))
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}
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s.WriteRune('\n')
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if i != m.height {
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s.WriteRune('\n')
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}
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}
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if m.paginator.TotalPages <= 1 {
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return s.String()
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}
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s.WriteString(strings.Repeat("\n", m.height-m.paginator.ItemsOnPage(len(m.items))+1))
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s.WriteString(" " + m.paginator.View())
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return s.String()
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}
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@ -6,8 +6,15 @@ import (
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"os"
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"strings"
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"github.com/charmbracelet/bubbles/paginator"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/charmbracelet/gum/internal/stdin"
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"github.com/charmbracelet/lipgloss"
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)
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var (
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subduedStyle = lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#847A85", Dark: "#979797"})
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verySubduedStyle = lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#DDDADA", Dark: "#3C3C3C"})
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)
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// Run provides a shell script interface for choosing between different through
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@ -40,6 +47,21 @@ func (o Options) Run() error {
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o.Limit = len(o.Options)
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}
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// Use the pagination model to display the current and total number of
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// pages.
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pager := paginator.New()
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pager.SetTotalPages((len(items) + o.Height - 1) / o.Height)
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pager.PerPage = o.Height
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pager.Type = paginator.Dots
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pager.ActiveDot = subduedStyle.Render("•")
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pager.InactiveDot = verySubduedStyle.Render("•")
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// Disable Keybindings since we will control it ourselves.
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pager.UseHLKeys = false
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pager.UseLeftRightKeys = false
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pager.UseJKKeys = false
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pager.UsePgUpPgDownKeys = false
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m, err := tea.NewProgram(model{
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height: o.Height,
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cursor: o.Cursor,
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@ -48,6 +70,7 @@ func (o Options) Run() error {
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cursorPrefix: o.CursorPrefix,
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items: items,
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limit: o.Limit,
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paginator: pager,
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cursorStyle: o.CursorStyle.ToLipgloss(),
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itemStyle: o.ItemStyle.ToLipgloss(),
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selectedItemStyle: o.SelectedItemStyle.ToLipgloss(),
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