// announce sends a ClientMessage event to the root window to let everyone
// know that Wingo is the boss. (As per ICCCM 2.8.)
func announce(X *xgbutil.XUtil) {
typAtom, err := xprop.Atm(X, "MANAGER")
if err != nil {
logger.Warning.Println(err)
return
}
manSelAtom, err := managerAtom(X)
if err != nil {
logger.Warning.Println(err)
return
}
cm, err := xevent.NewClientMessage(32, X.RootWin(), typAtom,
int(X.TimeGet()), int(manSelAtom), int(X.Dummy()))
xproto.SendEvent(X.Conn(), false, X.RootWin(),
xproto.EventMaskStructureNotify, string(cm.Bytes()))
}
func New(X *xgbutil.XUtil) (*SystemTray, error) {
tray := &SystemTray{
X: X,
}
var err error
if sysTrayAtom == 0 {
sysTrayAtom, err = xprop.Atom(X, "_NET_SYSTEM_TRAY_S0", false)
if err != nil {
return nil, err
}
}
if sysTrayMsgAtom == 0 {
sysTrayMsgAtom, err = xprop.Atom(X, "_NET_SYSTEM_TRAY_OPCODE", false)
if err != nil {
return nil, err
}
}
if managerEventAtom == 0 {
managerEventAtom, err = xprop.Atom(X, "MANAGER", false)
if err != nil {
return nil, err
}
}
tray.wid, err = xwindow.Create(X, X.RootWin())
if err != nil {
return nil, err
}
ts, err := currentTime(X)
if err != nil {
return nil, err
}
X.TimeSet(ts)
// tray.wid.Listen(xproto.EventMaskNoEvent | xproto.EventMaskPropertyChange)
err = xproto.SetSelectionOwnerChecked(tray.X.Conn(), tray.wid.Id, sysTrayAtom, tray.X.TimeGet()).Check()
if err != nil {
return nil, err
}
reply, err := xproto.GetSelectionOwner(X.Conn(), sysTrayAtom).Reply()
if err != nil {
return nil, err
}
if reply.Owner != tray.wid.Id {
return nil, fmt.Errorf("Could not get ownership of the thingy-thing.")
}
evt, err := xevent.NewClientMessage(32, X.RootWin(), managerEventAtom,
int(X.TimeGet()), int(sysTrayAtom), int(tray.wid.Id))
if err != nil {
return nil, err
}
if err = xevent.SendRootEvent(X, evt, xproto.EventMaskStructureNotify); err != nil {
return nil, err
}
xevent.ClientMessageFun(func(_ *xgbutil.XUtil, ev xevent.ClientMessageEvent) {
tray.event(ev)
}).Connect(tray.X, tray.wid.Id)
return tray, nil
}