wm/vend/xgbutil/ewmh/winman.go

32 lines
902 B
Go

package ewmh
import (
"fmt"
"github.com/jezek/xgbutil"
)
// 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)
}