// type a keysym, applying a slice of modifiers
func KeysymType(keysym C.KeySym, modifiers []string) error {
// As XTestFakeKeyEvent does not use current keyboard layout,
// we map each keysym to type to an unused keycode to circumvent this bug
nkeysyms := C.int(5)
keysyms := make([]C.KeySym, nkeysyms)
for i, _ := range keysyms {
keysyms[i] = keysym
}
var err error
keycode, err := x.UnusedKeycode()
if err != nil {
return err
}
C.XChangeKeyboardMapping(x.dpy, C.int(keycode), nkeysyms, &keysyms[0], 1)
x.XSync()
// apply modifiers
for _, modifier := range modifiers {
bytes := []byte(modifier)
mkeysym := C.XStringToKeysym((*C.char)(unsafe.Pointer(&bytes[0])))
mkeycode := C.XKeysymToKeycode(x.dpy, mkeysym)
C.XTestFakeKeyEvent(x.dpy, C.uint(mkeycode), 1, 0)
}
// hit/release the keycode associated to desired keysym
C.XTestFakeKeyEvent(x.dpy, C.uint(keycode), 1, 0)
C.XTestFakeKeyEvent(x.dpy, C.uint(keycode), 0, 0)
// release modifiers
for _, modifier := range modifiers {
bytes := []byte(modifier)
mkeysym := C.XStringToKeysym((*C.char)(unsafe.Pointer(&bytes[0])))
mkeycode := C.XKeysymToKeycode(x.dpy, mkeysym)
C.XTestFakeKeyEvent(x.dpy, C.uint(mkeycode), 0, 0)
}
x.XSync()
// release unused keycode
for i, _ := range keysyms {
keysyms[i] = 0
}
C.XChangeKeyboardMapping(x.dpy, C.int(keycode), nkeysyms, &keysyms[0], 1)
x.XSync()
return nil
}
func sendKey(disp *C.struct__XDisplay, strname string) {
if disp == nil {
fmt.Println("no X11 display available")
return
}
var mod _Ctype_KeyCode
if strings.HasPrefix(strname, "Ctrl+") {
strname = strname[len("Ctrl+"):]
modkey := "Control_L"
mod = C.XKeysymToKeycode(disp, C.XStringToKeysym(C.CString(modkey)))
if debug {
fmt.Printf("send key %T (Control) code=%v\n", mod, mod)
}
C.XTestFakeKeyEvent(disp, C.uint(mod), 1, 0)
C.XFlush(disp)
}
chstr := C.CString(strname)
keysym := C.XStringToKeysym(chstr)
keycode := C.XKeysymToKeycode(disp, keysym)
if debug {
fmt.Printf("send key (%s) sym=%v code=%v\n", strname, keysym, keycode)
}
C.XTestFakeKeyEvent(disp, C.uint(keycode), 1, 0)
C.XFlush(disp)
C.XTestFakeKeyEvent(disp, C.uint(keycode), 0, 0)
C.XFlush(disp)
if debug {
fmt.Printf("hit key %v (keysym %v keycode %v)\n", strname, keysym, keycode)
}
fmt.Printf("mod is == %v\n", mod)
if mod != 0 {
C.XTestFakeKeyEvent(disp, C.uint(mod), 0, 0)
C.XFlush(disp)
}
}
func main() {
var dpy *C.Display
var attr C.XWindowAttributes
var start C.XButtonEvent
var ev C.XEvent
var ch *C.char
if dpy != C.XOpenDisplay(ch) {
return
}
C.XGrabKey(
dpy,
C.int(C.XKeysymToKeycode(dpy, C.XStringToKeysym(C.CString("F1")))),
C.Mod1Mask,
C.XDefaultRootWindow(dpy),
1,
C.GrabModeAsync,
C.GrabModeAsync,
)
C.XGrabButton(
dpy,
1,
C.Mod1Mask,
C.XDefaultRootWindow(dpy),
1,
C.ButtonPressMask|C.ButtonReleaseMask|C.PointerMotionMask,
C.GrabModeAsync,
C.GrabModeAsync,
C.None,
C.None,
)
C.XGrabButton(
dpy,
3,
C.Mod1Mask,
C.XDefaultRootWindow(dpy),
1,
C.ButtonPressMask|C.ButtonReleaseMask|C.PointerMotionMask,
C.GrabModeAsync,
C.GrabModeAsync,
C.None,
C.None,
)
start.subwindow = C.None
for {
C.XNextEvent(dpy, &ev)
if unionToInt(ev) == C.KeyPress && unionToXKeyEvent(ev).subwindow != C.None {
C.XRaiseWindow(dpy, unionToXKeyEvent(ev).subwindow)
} else if unionToInt(ev) == C.ButtonPress && unionToXButtonEvent(ev).subwindow != C.None {
C.XGetWindowAttributes(dpy, unionToXButtonEvent(ev).subwindow, &attr)
start = *unionToXButtonEvent(ev)
} else if unionToInt(ev) == C.MotionNotify && start.subwindow != C.None {
xdiff := unionToXButtonEvent(ev).x_root - start.x_root
ydiff := unionToXButtonEvent(ev).y_root - start.y_root
var toDiffX C.int
var toDiffY C.int
if start.button == 1 {
toDiffX = xdiff
toDiffY = ydiff
}
var toWidth C.int
var toHeight C.int
if start.button == 3 {
toWidth = xdiff
toHeight = ydiff
}
C.XMoveResizeWindow(
dpy,
start.subwindow,
attr.x+toDiffX,
attr.y+toDiffY,
max(1, attr.width+toWidth),
max(1, attr.height+toHeight))
} else if unionToInt(ev) == C.ButtonRelease {
start.subwindow = C.None
}
}
}
// type a FnKey
func (fkey *FnKey) Type(modifiers []string) error {
bytes := []byte(fkey.value)
keysym := C.XStringToKeysym((*C.char)(unsafe.Pointer(&bytes[0])))
return KeysymType(keysym, modifiers)
}