Exemplo n.º 1
0
func Initialize(srcs []Downloadable, threads int) (d *DownloadEngine, err error) {
	if srcs == nil || threads <= 0 {
		return nil, errors.New("Неверный аргумент при инициализации загрузчика")
	}
	d = new(DownloadEngine)
	d.registerQMLTypes()
	d.srcs = srcs
	d.engine = qml.NewEngine()
	component, err := d.engine.LoadFile("qrc:///qml/downloadgui.qml")
	if err != nil {
		log.Panicln(err)
	}
	d.engine.Context().SetVar("engine", d)
	d.mainwindow = component.CreateWindow(nil)
	d.mainwindow.Show()
	model := d.mainwindow.Root().ObjectByName("filetable").ObjectByName("dllist")
	d.threadPool, err = tunny.CreatePool(threads, func(object interface{}) interface{} {
		dlo := object.(Downloadable)
		d.completedl = append(d.completedl, 0)
		d.totaldl = append(d.totaldl, 0)
		model.Call("appendStruct", &DisplayableItem{Fname: filepath.Base(dlo.ActualPath()), Dlspeed: "0B/s", Dlprogress: 0.0})
		item := model.Call("back").(qml.Object)
		index := model.Int("count") - 1
		dlo.Progress(func(p curl.ProgressStatus) {
			if p.Size != 0 && d.completedl[index] != p.Size {
				d.completedl[index] = p.Size
			}
			if p.ContentLength != 0 && d.totaldl[index] != p.ContentLength {
				d.totaldl[index] = p.ContentLength
			}
			//when download completes, percents sets to 0
			if p.Percent != 0 {
				item.Set("dlprogress", p.Percent)
			} else {
				item.Set("dlprogress", 1)
				d.completedl[index] = d.totaldl[index]
			}
			item.Set("dlspeed", curl.PrettySpeedString(p.Speed))
			d.updateTotalProgress()
		}, 100*time.Millisecond)
		_, err := object.(Downloadable).Do()
		if err != nil { /*dialogboxes.ShowErrorDialog(err.Error())*/ log.Println(err.Error())
		}
		return nil
	}).Open()
	if err != nil {
		log.Panicln(err)
	}
	for _, v := range srcs {
		d.threadPool.SendWorkAsync(v, func(interface{}, error) {})
	}
	return
}
Exemplo n.º 2
0
func DownloadFile(url string, fileName string, verbose bool) {
	req := curl.New(url)

	req.Method("POST")
	req.SaveToFile(fileName)

	// Print progress status per one second
	req.Progress(func(p curl.ProgressStatus) {
		if verbose {
			log.SetOutput(os.Stdout)
			log.Println(
				"speed", curl.PrettySpeedString(p.Speed),
				"len", curl.PrettySizeString(p.ContentLength),
				"got", curl.PrettySizeString(p.Size),
			)
		}
	}, time.Second)

	req.Do()
}
Exemplo n.º 3
0
func (u *Ui) refreshActiveDownloadWidgets() {
	u.activeDownloadWidgets = make([]*termui.Gauge, 0, len(u.activeDownloads))

	uris := make([]string, 0, len(u.activeDownloads))
	for uri, _ := range u.activeDownloads {
		uris = append(uris, uri)
	}
	sort.Strings(uris)

	for _, uri := range uris {
		progress := u.activeDownloads[uri]

		widget := termui.NewGauge()
		widget.Height = 3
		widget.Percent = int(progress.Percent * 100)
		widget.Border.Label = "Downloading: " + uri
		widget.Label = fmt.Sprintf("{{percent}}%% (%s)", curl.PrettySpeedString(progress.Speed))

		u.activeDownloadWidgets = append(u.activeDownloadWidgets, widget)
	}
}