bubbletea/examples/tabs/main.go

117 lines
2.9 KiB
Go
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package main
import (
"fmt"
"os"
"strings"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
type model struct {
Tabs []string
TabContent []string
activeTab int
}
func (m model) Init() tea.Cmd {
return nil
}
func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch keypress := msg.String(); keypress {
case "ctrl+c", "q":
return m, tea.Quit
case "right", "l", "n", "tab":
m.activeTab = min(m.activeTab+1, len(m.Tabs)-1)
return m, nil
case "left", "h", "p", "shift+tab":
m.activeTab = max(m.activeTab-1, 0)
return m, nil
}
}
return m, nil
}
func tabBorderWithBottom(left, middle, right string) lipgloss.Border {
border := lipgloss.RoundedBorder()
border.BottomLeft = left
border.Bottom = middle
border.BottomRight = right
return border
}
var (
defaultWidth = 20
inactiveTabBorder = tabBorderWithBottom("┴", "─", "┴")
activeTabBorder = tabBorderWithBottom("┘", " ", "└")
docStyle = lipgloss.NewStyle().Padding(1, 2, 1, 2)
highlightColor = lipgloss.AdaptiveColor{Light: "#874BFD", Dark: "#7D56F4"}
inactiveTabStyle = lipgloss.NewStyle().Border(inactiveTabBorder, true).BorderForeground(highlightColor).Padding(0, 1)
activeTabStyle = inactiveTabStyle.Copy().Border(activeTabBorder, true)
windowStyle = lipgloss.NewStyle().BorderForeground(highlightColor).Padding(2, 0).Align(lipgloss.Center).Border(lipgloss.NormalBorder()).UnsetBorderTop()
)
func (m model) View() string {
doc := strings.Builder{}
var renderedTabs []string
for i, t := range m.Tabs {
var style lipgloss.Style
isFirst, isLast, isActive := i == 0, i == len(m.Tabs)-1, i == m.activeTab
if isActive {
style = activeTabStyle.Copy()
} else {
style = inactiveTabStyle.Copy()
}
border, _, _, _, _ := style.GetBorder()
if isFirst && isActive {
border.BottomLeft = "│"
} else if isFirst && !isActive {
border.BottomLeft = "├"
} else if isLast && isActive {
border.BottomRight = "│"
} else if isLast && !isActive {
border.BottomRight = "┤"
}
style = style.Border(border)
renderedTabs = append(renderedTabs, style.Render(t))
}
row := lipgloss.JoinHorizontal(lipgloss.Top, renderedTabs...)
doc.WriteString(row)
doc.WriteString("\n")
doc.WriteString(windowStyle.Width((lipgloss.Width(row) - windowStyle.GetHorizontalFrameSize())).Render(m.TabContent[m.activeTab]))
return docStyle.Render(doc.String())
}
func main() {
tabs := []string{"Lip Gloss", "Blush", "Eye Shadow", "Mascara", "Foundation"}
tabContent := []string{"Lip Gloss Tab", "Blush Tab", "Eye Shadow Tab", "Mascara Tab", "Foundation Tab"}
m := model{Tabs: tabs, TabContent: tabContent}
if err := tea.NewProgram(m).Start(); err != nil {
fmt.Println("Error running program:", err)
os.Exit(1)
}
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
func min(a, b int) int {
if a < b {
return a
}
return b
}