93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
package app
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import (
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"os"
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"os/exec"
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"os/user"
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"git.sr.ht/~rockorager/vaxis"
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"git.sr.ht/~rockorager/vaxis/widgets/term"
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"git.tilde.town/nbsp/welcome/ui"
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)
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type Shell struct {
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loaded bool
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}
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func (view *Shell) Draw(state *ui.State) (row int) {
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win := state.Window().New(0, 0, 80, state.Window().Height)
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user, _ := user.Current()
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_, row = win.Wrap(vaxis.Segment{Text: `──── using the shell ────
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`, Style: vaxis.Style{Foreground: vaxis.IndexColor(5)}}, vaxis.Segment{Text: `as mentioned before, interaction with stuff on tilde town is done primarily via the `},
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vaxis.Segment{Text: "terminal", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: `. good news, you've been using the terminal this whole time! it's the text application with which you've been talking to the server so far.
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the method of navigation between programs inside our shared computer, however, is called a `},
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vaxis.Segment{Text: "shell", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: `. it's an interface that takes in commands, like "open a text editor" or "show me my flower", in a language that doesn't take too long to get used to. the most popular shell is called `},
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vaxis.Segment{Text: "bash", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: `, and while there are more, there's no reason to switch unless you're looking for something different.
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below is a terminal session. here are some commands for you to try out:
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• `},
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vaxis.Segment{Text: "ls", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: " lists the contents of a folder\n• "},
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vaxis.Segment{Text: "cd", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: " goes into a folder\n• "},
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vaxis.Segment{Text: "mkdir", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: " makes a new folder with a given name\n• "},
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vaxis.Segment{Text: "cat", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: " outputs the contents of a file (try running "},
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vaxis.Segment{Text: "cat welcome_" + user.Username + ".txt", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: "!)\n• "},
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vaxis.Segment{Text: "echo", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: " makes the shell repeat what you say to it\ntype "},
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vaxis.Segment{Text: "exit", Style: vaxis.Style{Foreground: vaxis.IndexColor(3)}},
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vaxis.Segment{Text: ` to continue the tutorial, whenever you're ready.`},
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)
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return
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}
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func (view *Shell) Event(state *ui.State, event vaxis.Event) (processed bool) {
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if view.loaded {
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return
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}
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view.loaded = true
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row := view.Draw(state)
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win := state.Window().New(0, row+2, 80, 80)
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vt := term.New()
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vt.TERM = os.Getenv("TERM")
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vt.Attach(state.PostEvent())
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vt.Focus()
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err := vt.Start(exec.Command("bash", "-l"))
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if err != nil {
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panic(err)
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}
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defer vt.Close()
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for ev := range state.Events() {
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switch ev.(type) {
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case term.EventClosed:
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state.HideCursor()
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vt.Detach()
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vt.Close()
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state.Window().Clear()
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ui.ViewChange <- &Editor{}
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return
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case vaxis.Redraw:
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view.Draw(state)
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vt.Draw(win)
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state.Render()
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continue
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}
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vt.Update(ev)
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}
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return
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}
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