func link(elements ...*gst.Element) {
var src *gst.Element
for _, sink := range elements {
if err == nil && src != nil {
if !src.Link(sink) {
err = fmt.Errorf("Failed to link %s:%s -> %s:%s", src.Type(), src.GetName(), sink.Type(), sink.GetName())
}
}
src = sink
}
}
func setProperty(element *gst.Element, name string, value interface{}) {
if err == nil {
element.SetProperty(name, value)
}
}
// Initializes the GUI. Function is passed to ui.Do.
func initGui() {
var cs, ps, ns song
var player *gst.Element
var playing bool
// Creates the initial songs that will be used as long as the program runs.
cs = song{api: ¤t.Current.songAPIType}
ps = song{api: ¤t.Previous1.songAPIType}
// ps2 := song{api: ¤t.Previous2.songAPIType}
ns = song{api: ¤t.Next1.songAPIType}
// ns2 := song{api: ¤t.Next2.songAPIType}
// Creates the player and the controls for the player (as well as label).
player = initPlayer()
playing = true
psl := ui.NewLabel("Currently Playing")
ppbtn := ui.NewButton("Pause")
ppbtn.OnClicked(func() {
if playing {
ppbtn.SetText("Play")
player.SetState(gst.STATE_PAUSED)
psl.SetText("Currently Paused")
} else {
ppbtn.SetText("Pause")
psl.SetText("Currently Playing")
player.SetState(gst.STATE_PLAYING)
}
playing = !playing
})
// Creates the notification system
nt := notificator.New(notificator.Options{
DefaultIcon: "icon/default.png",
AppName: "GoFip",
})
// Notification settings. Will be passed to the updateGui goroutine to Check
// whether or not to send a system notification when the music changes.
ntc := ui.NewCheckbox("Notifications")
ntc.SetChecked(true)
// Defines a closableTicker that is used in the updateGui goroutine
// This allows to close the ticker when the setting button is unchecked.
ct := closableTicker{
ticker: time.NewTicker(1 * time.Minute),
halt: make(chan bool, 1),
}
prc := ui.NewCheckbox("Periodic Check")
prc.SetChecked(true)
prc.OnToggled(func() {
if !prc.Checked() {
ct.stop()
} else {
ct = closableTicker{
ticker: time.NewTicker(1 * time.Minute),
halt: make(chan bool, 1),
}
go updateGui(ct, nt, ntc, &cs, &ps, &ns)
}
})
// Start the goroutine to update the GUI every minute (default behaviour)
// Uses the closableTicker defined earlier so the goroutine can be stopped.
go updateGui(ct, nt, ntc, &cs, &ps, &ns)
// Creating the tabs with the songs as well as settings and credits.
createTabs(&cs, &ps, &ns)
ts := ui.NewTab()
ts.Append("Current", cs.stack)
ts.Append("Previous", ps.stack)
ts.Append("Next", ns.stack)
ts.Append("Settings", ui.NewVerticalStack(ntc, prc))
ts.Append("Credits", ui.NewLabel("Depado 2015"))
// Creates the main vertical stack that is passed to the main window.
mvs := ui.NewVerticalStack(ts, ppbtn, psl)
// The tab control must be set to stretchy otherwise it won't display the content.
mvs.SetStretchy(0)
// Creates the main window and the behaviour on close event.
window = ui.NewWindow("GoFIP", width, height, mvs)
window.OnClosing(func() bool {
ui.Stop()
return true
})
window.Show()
// Starts the player once the window is shown.
player.SetState(gst.STATE_PLAYING)
}
