lazygit/gui.go

package gitgot

import (
  "fmt"
  "log"
  "github.com/jroimartin/gocui"
)

func main() {
  g, err := gocui.NewGui(gocui.OutputNormal)
  if err != nil {
    log.Panicln(err)
  }
  defer g.Close()

  g.SetManagerFunc(layout)

  if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
    log.Panicln(err)
  }

  if err := g.SetKeybinding("", 'a', gocui.ModNone, quit); err != nil {
    log.Panicln(err)
  }

  if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
    log.Panicln(err)
  }
}

func layout(g *gocui.Gui) error {
  maxX, maxY := g.Size()
  if v, err := g.SetView("hello", maxX/2-7, maxY/2, maxX/2+7, maxY/2+2); err != nil {
    if err != gocui.ErrUnknownView {
      return err
    }
    fmt.Fprintln(v, "Hello world!")
  }

  if v2, err := g.SetView("hello2", maxX/2-7, maxY/2, maxX/2+7, maxY/2+2); err != nil {
    if err != gocui.ErrUnknownView {
      return err
    }
    fmt.Fprintln(v2, "Hello world 2!")
  }

  return nil
}

func quit(g *gocui.Gui, v *gocui.View) error {
  return gocui.ErrQuit
}