Exemplo n.º 1
0
// _NET_DESKTOP_LAYOUT set
func DesktopLayoutSet(xu *xgbutil.XUtil, orientation, columns, rows,
	startingCorner uint) error {

	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_DESKTOP_LAYOUT",
		"CARDINAL", orientation, columns, rows,
		startingCorner)
}
Exemplo n.º 2
0
// sendClientMessages is a goroutine that sends client messages to the root
// window. We then listen to them later as a demonstration of responding to
// X events. (They are sent with SubstructureNotify and SubstructureRedirect
// masks set. So in order to receive them, we'll have to explicitly listen
// to events of that type on the root window.)
func xSource(X *xgbutil.XUtil) {
	i := 1
	for {
		ewmh.ClientEvent(X, X.RootWin(), "NOOP", i)
		i++
		time.Sleep(200 * time.Millisecond)
	}
}
Exemplo n.º 3
0
// _NET_SUPPORTED set
// This will create any atoms in the argument if they don't already exist.
func SupportedSet(xu *xgbutil.XUtil, atomNames []string) error {
	atoms, err := xprop.StrToAtoms(xu, atomNames)
	if err != nil {
		return err
	}

	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_SUPPORTED", "ATOM",
		atoms...)
}
Exemplo n.º 4
0
// _NET_SHOWING_DESKTOP req
func ShowingDesktopReq(xu *xgbutil.XUtil, show bool) error {
	var showInt uint
	if show {
		showInt = 1
	} else {
		showInt = 0
	}
	return ClientEvent(xu, xu.RootWin(), "_NET_SHOWING_DESKTOP", showInt)
}
Exemplo n.º 5
0
// _NET_DESKTOP_GEOMETRY get
func DesktopGeometryGet(xu *xgbutil.XUtil) (*DesktopGeometry, error) {
	geom, err := xprop.PropValNums(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_DESKTOP_GEOMETRY"))
	if err != nil {
		return nil, err
	}

	return &DesktopGeometry{Width: int(geom[0]), Height: int(geom[1])}, nil
}
Exemplo n.º 6
0
// _NET_DESKTOP_NAMES set
func DesktopNamesSet(xu *xgbutil.XUtil, names []string) error {
	nullterm := make([]byte, 0)
	for _, name := range names {
		nullterm = append(nullterm, name...)
		nullterm = append(nullterm, 0)
	}
	return xprop.ChangeProp(xu, xu.RootWin(), 8, "_NET_DESKTOP_NAMES",
		"UTF8_STRING", nullterm)
}
Exemplo n.º 7
0
// _NET_SHOWING_DESKTOP set
func ShowingDesktopSet(xu *xgbutil.XUtil, show bool) error {
	var showInt uint
	if show {
		showInt = 1
	} else {
		showInt = 0
	}
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_SHOWING_DESKTOP",
		"CARDINAL", showInt)
}
Exemplo n.º 8
0
// _NET_WM_HANDLED_ICONS set
func WmHandledIconsSet(xu *xgbutil.XUtil, handle bool) error {
	var handled uint
	if handle {
		handled = 1
	} else {
		handled = 0
	}
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_WM_HANDLED_ICONS",
		"CARDINAL", handled)
}
Exemplo n.º 9
0
// _NET_DESKTOP_VIEWPORT set
func DesktopViewportSet(xu *xgbutil.XUtil, viewports []DesktopViewport) error {
	coords := make([]uint, len(viewports)*2)
	for i, viewport := range viewports {
		coords[i*2] = uint(viewport.X)
		coords[i*2+1] = uint(viewport.Y)
	}

	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_DESKTOP_VIEWPORT",
		"CARDINAL", coords...)
}
Exemplo n.º 10
0
// newWindow creates a new window with a random background color. It sets the
// WM_PROTOCOLS property to contain the WM_DELETE_WINDOW atom. It also sets
// up a ClientMessage event handler so that we know when to destroy the window.
// We also set up a mouse binding so that clicking inside a window will
// create another one.
func newWindow(X *xgbutil.XUtil) {
	counter++
	win, err := xwindow.Generate(X)
	if err != nil {
		log.Fatal(err)
	}

	// Get a random background color, create the window (ask to receive button
	// release events while we're at it) and map the window.
	bgColor := rand.Intn(0xffffff + 1)
	win.Create(X.RootWin(), 0, 0, 200, 200,
		xproto.CwBackPixel|xproto.CwEventMask,
		uint32(bgColor), xproto.EventMaskButtonRelease)

	// WMGracefulClose does all of the work for us. It sets the appropriate
	// values for WM_PROTOCOLS, and listens for ClientMessages that implement
	// the WM_DELETE_WINDOW protocol. When one is found, the provided callback
	// is executed.
	win.WMGracefulClose(
		func(w *xwindow.Window) {
			// Detach all event handlers.
			// This should always be done when a window can no longer
			// receive events.
			xevent.Detach(w.X, w.Id)
			mousebind.Detach(w.X, w.Id)
			w.Destroy()

			// Exit if there are no more windows left.
			counter--
			if counter == 0 {
				os.Exit(0)
			}
		})

	// It's important that the map comes after setting WMGracefulClose, since
	// the WM isn't obliged to watch updates to the WM_PROTOCOLS property.
	win.Map()

	// A mouse binding so that a left click will spawn a new window.
	// Note that we don't issue a grab here. Typically, window managers will
	// grab a button press on the client window (which usually activates the
	// window), so that we'd end up competing with the window manager if we
	// tried to grab it.
	// Instead, we set a ButtonRelease mask when creating the window and attach
	// a mouse binding *without* a grab.
	err = mousebind.ButtonReleaseFun(
		func(X *xgbutil.XUtil, ev xevent.ButtonReleaseEvent) {
			newWindow(X)
		}).Connect(X, win.Id, "1", false, false)
	if err != nil {
		log.Fatal(err)
	}
}
Exemplo n.º 11
0
// _NET_WORKAREA set
func WorkareaSet(xu *xgbutil.XUtil, workareas []Workarea) error {
	rects := make([]uint, len(workareas)*4)
	for i, workarea := range workareas {
		rects[i*4+0] = uint(workarea.X)
		rects[i*4+1] = uint(workarea.Y)
		rects[i*4+2] = workarea.Width
		rects[i*4+3] = workarea.Height
	}

	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_WORKAREA", "CARDINAL",
		rects...)
}
Exemplo n.º 12
0
// _NET_SHOWING_DESKTOP get
func ShowingDesktopGet(xu *xgbutil.XUtil) (bool, error) {
	reply, err := xprop.GetProperty(xu, xu.RootWin(), "_NET_SHOWING_DESKTOP")
	if err != nil {
		return false, err
	}

	val, err := xprop.PropValNum(reply, nil)
	if err != nil {
		return false, err
	}

	return val == 1, nil
}
Exemplo n.º 13
0
// newWindow creates a new window that listens to MotionNotify events with
// the given backgroundcolor.
func newWindow(X *xgbutil.XUtil, color uint32) *xwindow.Window {
	win, err := xwindow.Generate(X)
	if err != nil {
		log.Fatal(err)
	}

	err = win.CreateChecked(X.RootWin(), 0, 0, 400, 400,
		xproto.CwBackPixel|xproto.CwEventMask,
		color, xproto.EventMaskPointerMotion)
	if err != nil {
		log.Fatal(err)
	}

	win.Map()
	return win
}
Exemplo n.º 14
0
// _NET_DESKTOP_VIEWPORT get
func DesktopViewportGet(xu *xgbutil.XUtil) ([]DesktopViewport, error) {
	coords, err := xprop.PropValNums(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_DESKTOP_VIEWPORT"))
	if err != nil {
		return nil, err
	}

	viewports := make([]DesktopViewport, len(coords)/2)
	for i, _ := range viewports {
		viewports[i] = DesktopViewport{
			X: int(coords[i*2]),
			Y: int(coords[i*2+1]),
		}
	}
	return viewports, nil
}
Exemplo n.º 15
0
// dragGrab is a shortcut for grabbing the pointer for a drag.
func dragGrab(xu *xgbutil.XUtil, grabwin xproto.Window, win xproto.Window,
	cursor xproto.Cursor) bool {

	status, err := GrabPointer(xu, grabwin, xu.RootWin(), cursor)
	if err != nil {
		xgbutil.Logger.Printf("Mouse dragging was unsuccessful because: %v",
			err)
		return false
	}
	if !status {
		xgbutil.Logger.Println("Mouse dragging was unsuccessful because " +
			"we could not establish a pointer grab.")
		return false
	}

	mouseDragSet(xu, true)
	return true
}
Exemplo n.º 16
0
// _NET_WM_PING req extra
func WmPingExtra(xu *xgbutil.XUtil, win xproto.Window, response bool,
	time xproto.Timestamp) error {

	pingAtom, err := xprop.Atm(xu, "_NET_WM_PING")
	if err != nil {
		return err
	}

	var evWindow xproto.Window
	if response {
		evWindow = xu.RootWin()
	} else {
		evWindow = win
	}

	return ClientEvent(xu, evWindow, "WM_PROTOCOLS", int(pingAtom), int(time),
		int(win))
}
Exemplo n.º 17
0
// _NET_WORKAREA get
func WorkareaGet(xu *xgbutil.XUtil) ([]Workarea, error) {
	rects, err := xprop.PropValNums(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_WORKAREA"))
	if err != nil {
		return nil, err
	}

	workareas := make([]Workarea, len(rects)/4)
	for i, _ := range workareas {
		workareas[i] = Workarea{
			X:      int(rects[i*4]),
			Y:      int(rects[i*4+1]),
			Width:  rects[i*4+2],
			Height: rects[i*4+3],
		}
	}
	return workareas, nil
}
Exemplo n.º 18
0
// _NET_DESKTOP_LAYOUT get
func DesktopLayoutGet(xu *xgbutil.XUtil) (dl *DesktopLayout, err error) {
	dlraw, err := xprop.PropValNums(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_DESKTOP_LAYOUT"))
	if err != nil {
		return nil, err
	}

	dl = &DesktopLayout{}
	dl.Orientation = int(dlraw[0])
	dl.Columns = int(dlraw[1])
	dl.Rows = int(dlraw[2])

	if len(dlraw) > 3 {
		dl.StartingCorner = int(dlraw[3])
	} else {
		dl.StartingCorner = TopLeft
	}

	return dl, nil
}
Exemplo n.º 19
0
// GetEwmhWM uses the EWMH spec to find if a conforming window manager
// is currently running or not. If it is, then its name will be returned.
// Otherwise, an error will be returned explaining why one couldn't be found.
func GetEwmhWM(xu *xgbutil.XUtil) (string, error) {
	childCheck, err := SupportingWmCheckGet(xu, xu.RootWin())
	if err != nil {
		return "", fmt.Errorf("GetEwmhWM: Failed because: %s", err)
	}

	childCheck2, err := SupportingWmCheckGet(xu, childCheck)
	if err != nil {
		return "", fmt.Errorf("GetEwmhWM: Failed because: %s", err)
	}

	if childCheck != childCheck2 {
		return "", fmt.Errorf(
			"GetEwmhWM: _NET_SUPPORTING_WM_CHECK value on the root window "+
				"(%x) does not match _NET_SUPPORTING_WM_CHECK value "+
				"on the child window (%x).", childCheck, childCheck2)
	}

	return WmNameGet(xu, childCheck)
}
Exemplo n.º 20
0
// _NET_ACTIVE_WINDOW set
func ActiveWindowSet(xu *xgbutil.XUtil, win xproto.Window) error {
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_ACTIVE_WINDOW", "WINDOW",
		uint(win))
}
Exemplo n.º 21
0
// _NET_VIRTUAL_ROOTS get
func VirtualRootsGet(xu *xgbutil.XUtil) ([]xproto.Window, error) {
	return xprop.PropValWindows(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_VIRTUAL_ROOTS"))
}
Exemplo n.º 22
0
// _NET_VISIBLE_DESKTOPS get
// This is not part of the EWMH spec, but is a property of my own creation.
// It allows the window manager to report that it has multiple desktops
// viewable at the same time. (This conflicts with other EWMH properties,
// so I don't think this will ever be added to the official spec.)
func VisibleDesktopsGet(xu *xgbutil.XUtil) ([]uint, error) {
	return xprop.PropValNums(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_VISIBLE_DESKTOPS"))
}
Exemplo n.º 23
0
// _NET_SUPPORTED get
func SupportedGet(xu *xgbutil.XUtil) ([]string, error) {
	reply, err := xprop.GetProperty(xu, xu.RootWin(), "_NET_SUPPORTED")
	return xprop.PropValAtoms(xu, reply, err)
}
Exemplo n.º 24
0
// _NET_CURRENT_DESKTOP set
func CurrentDesktopSet(xu *xgbutil.XUtil, desk uint) error {
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_CURRENT_DESKTOP",
		"CARDINAL", desk)
}
Exemplo n.º 25
0
// _NET_CURRENT_DESKTOP get
func CurrentDesktopGet(xu *xgbutil.XUtil) (uint, error) {
	return xprop.PropValNum(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_CURRENT_DESKTOP"))
}
Exemplo n.º 26
0
// _NET_VISIBLE_DESKTOPS set
func VisibleDesktopsSet(xu *xgbutil.XUtil, desktops []uint) error {
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_VISIBLE_DESKTOPS",
		"CARDINAL", desktops...)
}
Exemplo n.º 27
0
// _NET_CLIENT_LIST_STACKING set
func ClientListStackingSet(xu *xgbutil.XUtil, wins []xproto.Window) error {
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_CLIENT_LIST_STACKING",
		"WINDOW", xprop.WindowToInt(wins)...)
}
Exemplo n.º 28
0
// _NET_CLIENT_LIST_STACKING get
func ClientListStackingGet(xu *xgbutil.XUtil) ([]xproto.Window, error) {
	return xprop.PropValWindows(xprop.GetProperty(xu, xu.RootWin(),
		"_NET_CLIENT_LIST_STACKING"))
}
Exemplo n.º 29
0
// SendRootEvent takes a type implementing the xgb.Event interface, converts it
// to raw X bytes, and sends it to the root window using the SendEvent request.
func SendRootEvent(xu *xgbutil.XUtil, ev xgb.Event, evMask uint32) error {
	query, _ := xproto.SendEventChecked(xu.Conn(), nil, false, xu.RootWin(),
		evMask, string(ev.Bytes()))
	return query.Check()
}
Exemplo n.º 30
0
// _NET_VIRTUAL_ROOTS set
func VirtualRootsSet(xu *xgbutil.XUtil, wins []xproto.Window) error {
	return xprop.ChangeProp32(xu, xu.RootWin(), "_NET_VIRTUAL_ROOTS", "WINDOW",
		xprop.WindowToInt(wins)...)
}