cview/demos/list/main.go

// Demo code for the List primitive.
package main

import (
	"gitlab.com/tslocum/cview"
)

func main() {
	app := cview.NewApplication()
	list := cview.NewList()

	reset := func() {
		list.
			Clear().
			AddItem(cview.NewListItem("List item 1").SetSecondaryText("Some explanatory text").SetShortcut('a')).
			AddItem(cview.NewListItem("List item 2").SetSecondaryText("Some explanatory text").SetShortcut('b')).
			AddItem(cview.NewListItem("List item 3").SetSecondaryText("Some explanatory text").SetShortcut('c')).
			AddItem(cview.NewListItem("List item 4").SetSecondaryText("Some explanatory text").SetShortcut('d')).
			AddItem(cview.NewListItem("Quit").SetSecondaryText("Press to exit").SetShortcut('q').SetSelectedFunc(func() {
				app.Stop()
			}))

		list.ContextMenuList().SetItemEnabled(3, false)
	}

	list.AddContextItem("Delete item", 'i', func(index int) {
		list.RemoveItem(index)

		if list.GetItemCount() == 0 {
			list.ContextMenuList().SetItemEnabled(0, false)
			list.ContextMenuList().SetItemEnabled(1, false)
		}
		list.ContextMenuList().SetItemEnabled(3, true)
	})

	list.AddContextItem("Delete all", 'a', func(index int) {
		list.Clear()

		list.ContextMenuList().SetItemEnabled(0, false)
		list.ContextMenuList().SetItemEnabled(1, false)
		list.ContextMenuList().SetItemEnabled(3, true)
	})

	list.AddContextItem("", 0, nil)

	list.AddContextItem("Reset", 'r', func(index int) {
		reset()

		list.ContextMenuList().SetItemEnabled(0, true)
		list.ContextMenuList().SetItemEnabled(1, true)
		list.ContextMenuList().SetItemEnabled(3, false)
	})

	reset()
	if err := app.SetRoot(list, true).EnableMouse(true).Run(); err != nil {
		panic(err)
	}
}