// GrabWindowClass waits a user window selection and returns its class.
//
func (Data) GrabWindowClass() (string, error) {
if !winFocusRegistered {
winFocusRegistered = true
notif.RegisterWindowChangeFocus(onChangeFocus)
}
// Not sure the buffer is needed, but just in case,
// this could prevent stupid deadlock as the callback stay active for the session.
winFocusChan = make(chan cdglobal.Window, 10)
defer func() { close(winFocusChan); winFocusChan = nil }()
select {
case <-time.After(5 * time.Second): // Timeout.
return "", errors.New("timeout 5s")
case win := <-winFocusChan: // Get the first window selected, valid or not, to prevent confusion.
if win == nil {
return "", errors.New("no window information found")
}
if win.IsTransientWin() {
win = win.GetTransientWin()
}
return win.Class(), nil
}
return "", errors.New("unknown case")
}
// Register starts the applets manager service to use go internal applets in the dock.
//
func Register(log cdtype.Logger) *AppManager {
apps = NewAppManager(log)
notif.RegisterContainerLeftClick(apps.OnLeftClick)
notif.RegisterContainerMiddleClick(apps.OnMiddleClick)
notif.RegisterContainerMouseScroll(apps.OnMouseScroll)
notif.RegisterContainerDropData(apps.OnDropData)
notif.RegisterWindowChangeFocus(apps.OnChangeFocus)
notif.RegisterContainerMenuIcon(backendmenu.WrapDockMenuCallback(apps.BuildMenu))
apps.registerApplets()
return apps
}