103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
package ui
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import (
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"fmt"
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"strings"
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"github.com/orus-dev/osui"
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"github.com/orus-dev/osui/colors"
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"github.com/orus-dev/osui/keys"
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)
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type PaginatorComponent struct {
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Data osui.ComponentData
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Components []osui.Component
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ActiveComponent int
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}
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func (p *PaginatorComponent) GetComponentData() *osui.ComponentData {
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return &p.Data
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}
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func (p *PaginatorComponent) Render() string {
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width, _ := osui.GetTerminalSize()
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pgs := strings.Repeat(" ", (width-len(p.Components))/2)
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p.Data.Style.UseStyle()
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frame := osui.NewFrame(p.Data.Width, p.Data.Height)
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for i, c := range p.Components {
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data := c.GetComponentData()
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if i == p.ActiveComponent {
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pgs += p.Data.Style.SelectedForeground + data.Style.SelectedBackground + "•" + colors.Reset
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data.IsActive = true
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} else {
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pgs += colors.Reset + p.Data.Style.Foreground + data.Style.Background + "•"
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data.IsActive = false
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}
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if data.Width == 0 {
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data.Width = p.Data.Width
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}
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if data.Height == 0 {
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data.Height = p.Data.Height
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}
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data.DefaultColor = p.Data.DefaultColor
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data.Screen = p.Data.Screen
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}
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osui.RenderOnFrame(p.Components[p.ActiveComponent], &frame)
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for i, f := range frame {
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frame[i] = colors.Reset + p.Data.DefaultColor + f + colors.Reset
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}
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return fmt.Sprintf("%s\n%s", pgs+" ", colors.Reset+strings.Join(frame, "\n"))
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}
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func (p *PaginatorComponent) Update(ctx osui.UpdateContext) bool {
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if ctx.UpdateKind == osui.UpdateKindKey {
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switch p.Data.Keys[ctx.Key.Name] {
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case "previous":
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if p.ActiveComponent > 0 {
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p.updateActive(p.ActiveComponent - 1)
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} else {
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p.updateActive(len(p.Components) - 1)
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}
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case "next":
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if p.ActiveComponent < len(p.Components)-1 {
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p.updateActive(p.ActiveComponent + 1)
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} else {
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p.updateActive(0)
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}
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case "exit":
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p.Data.OnClick()
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fmt.Print("\n\n")
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return true
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default:
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if len(p.Components) > 0 {
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p.Components[p.ActiveComponent].GetComponentData().IsActive = p.Data.IsActive
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if p.Components[p.ActiveComponent].Update(ctx) {
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if p.ActiveComponent < len(p.Components)-1 {
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p.updateActive(p.ActiveComponent + 1)
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} else {
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p.updateActive(0)
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}
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}
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}
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}
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}
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return false
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}
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func (p *PaginatorComponent) updateActive(newIndex int) {
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if newIndex >= 0 && newIndex < len(p.Components) && len(p.Components) > 0 {
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p.ActiveComponent = newIndex
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}
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}
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func Paginator(param osui.Param, pages ...osui.Component) *PaginatorComponent {
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param.SetDefaultBindings(map[string]string{
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keys.ShiftTab: "previous",
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keys.Tab: "next",
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keys.Escape: "exit",
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})
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return param.UseParam(&PaginatorComponent{
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Components: pages,
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}).(*PaginatorComponent)
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}
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