package termui import ( "io/ioutil" "github.com/jroimartin/gocui" ) const inputPopupView = "inputPopupView" // inputPopup is a simple popup with an input field type inputPopup struct { active bool title string preload string c chan string } func newInputPopup() *inputPopup { return &inputPopup{} } func (ip *inputPopup) keybindings(g *gocui.Gui) error { // Close if err := g.SetKeybinding(inputPopupView, gocui.KeyEsc, gocui.ModNone, ip.close); err != nil { return err } // Validate if err := g.SetKeybinding(inputPopupView, gocui.KeyEnter, gocui.ModNone, ip.validate); err != nil { return err } return nil } func (ip *inputPopup) layout(g *gocui.Gui) error { if !ip.active { return nil } maxX, maxY := g.Size() width := minInt(30, maxX) height := 2 x0 := (maxX - width) / 2 y0 := (maxY - height) / 2 v, err := g.SetView(inputPopupView, x0, y0, x0+width, y0+height) if err != nil { if err != gocui.ErrUnknownView { return err } v.Frame = true v.Title = ip.title v.Editable = true v.Write([]byte(ip.preload)) } if _, err := g.SetCurrentView(inputPopupView); err != nil { return err } return nil } func (ip *inputPopup) close(g *gocui.Gui, v *gocui.View) error { ip.title = "" ip.active = false return g.DeleteView(inputPopupView) } func (ip *inputPopup) validate(g *gocui.Gui, v *gocui.View) error { ip.title = "" content, err := ioutil.ReadAll(v) if err != nil { return err } ip.title = "" ip.active = false err = g.DeleteView(inputPopupView) if err != nil { return err } ip.c <- string(content) return nil } func (ip *inputPopup) ActivateWithContent(title string, content string) <-chan string { ip.preload = content return ip.Activate(title) } func (ip *inputPopup) Activate(title string) <-chan string { ip.title = title ip.active = true ip.c = make(chan string) return ip.c }