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path: root/limox.go
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package main

import (
	"log"

	"gioui.org/app"
	"gioui.org/font/gofont"
	"gioui.org/io/system"
	"gioui.org/op"
	"gioui.org/unit"
	"gioui.org/widget"
	"gioui.org/widget/material"

	"xengineering.eu/limox/xmpp"
)

type LimoxState uint8

const (
	Disconnected LimoxState = iota
	Connecting
	Connected
)

type Limox struct {
	JidEditor  widget.Editor
	PwdEditor  widget.Editor
	MainButton widget.Clickable
	XmppConn chan xmpp.Event
	State      LimoxState
	Window     *app.Window
	Operations op.Ops
	Theme      *material.Theme
}

func NewLimox() Limox {
	return Limox{
		Window: app.NewWindow(
			app.Title("LimoX"),
			app.Size(unit.Dp(400), unit.Dp(600)),
		),
		Operations: op.Ops{},
		Theme:      material.NewTheme(gofont.Collection()),
		XmppConn:   make(chan xmpp.Event),
		State:      Disconnected,
	}
}

func (l *Limox) run() error {
	for {
		select {
		case e := <-l.Window.Events():
			switch e := e.(type) {
			case system.DestroyEvent:
				return e.Err
			case system.FrameEvent:
				if l.MainButton.Clicked() {
					l.buttonCallback()
				}
				l.draw(e)
			}
		case ev := <-l.XmppConn:
			switch ev {
			case xmpp.DisconnectEvent:
				l.State = Disconnected
			case xmpp.ConnectEvent:
				l.State = Connected
			default:
				log.Printf("Unknown xmpp.Event '%d'\n", ev)
			}
			l.Window.Invalidate()
		}
	}
}

func (l *Limox) buttonCallback() {
	switch l.State {
	case Disconnected:
		log.Println("Starting connection establishment ...")
		go xmpp.Run(l.XmppConn, l.JidEditor.Text(), l.PwdEditor.Text())
		l.State = Connecting
	case Connecting:
		log.Println("Aborted connection establishment")
		l.State = Disconnected
	case Connected:
		log.Println("Disconnecting ...")
		l.XmppConn <- xmpp.ShouldDisconnectEvent
		l.State = Disconnected
	}
}