private void Loop()
{
display = X11lib.XOpenDisplay(null);
if (display == IntPtr.Zero)
{
return;
}
if (window == IntPtr.Zero)
{
int res = 0;
X11lib.XGetInputFocus(display, ref window, ref res);
if (window == IntPtr.Zero)
{
return;
}
}
// TODO: move grabkeyboard to separate class
bool grabKeyboard = false;
if (grabKeyboard)
{
var rootWindow = X11lib.XDefaultRootWindow(display);
window = X11lib.XCreateSimpleWindow(display, rootWindow, -1, -1, 1, 1, 0, X11lib.XBlackPixel(display, 0), X11lib.XWhitePixel(display, 0));
X11lib.XLowerWindow(display, window);
}
X11lib.XSelectInput(display, window,
EventMask.StructureNotifyMask
| EventMask.ExposureMask
| EventMask.KeyPressMask
| EventMask.KeyReleaseMask
| EventMask.EnterWindowMask
| EventMask.LeaveWindowMask
| EventMask.FocusChangeMask
| EventMask.PropertyChangeMask
| EventMask.VisibilityChangeMask
);
X11lib.XMapWindow(display, window);
if (grabKeyboard)
{
var e2 = new XEvent {
type = XEventName.None
};
do
{
X11lib.XNextEvent(display, ref e2);
} while (e2.type != XEventName.MapNotify);
X11lib.XGrabKeyboard(display, window, false, 1, 1, 0);
X11lib.XLowerWindow(display, window);
}
var e = new XEvent {
type = XEventName.None
};
do
{
switch (e.type)
{
case XEventName.ConfigureNotify:
OnConfigure();
break;
case XEventName.Expose:
// The count member is set to the number of Expose events that are to follow.
// If count is zero, no more Expose events follow for this window.
// However, if count is nonzero, at least that number of Expose events (and possibly more) follow for this window.
// Simple applications that do not want to optimize redisplay by distinguishing between subareas of its window
// can just ignore all Expose events with nonzero counts and perform full redisplays on events with zero counts.
if (e.ExposeEvent.count == 0)
{
OnExpose();
}
break;
case XEventName.KeyPress:
//var mod = (Modifier) X.XkbKeysymToModifiers(display, X.XKeycodeToKeysym(display, e.KeyEvent.keycode, 0));
OnKeyPress((Key)X11lib.XKeycodeToKeysym(display, e.KeyEvent.keycode, 0));
break;
case XEventName.KeyRelease:
OnKeyRelease((Key)X11lib.XKeycodeToKeysym(display, e.KeyEvent.keycode, 0));
break;
case XEventName.EnterNotify:
OnEnterLeave(true);
break;
case XEventName.LeaveNotify:
OnEnterLeave(false);
break;
case XEventName.FocusIn:
OnFocus(true);
break;
case XEventName.FocusOut:
OnFocus(false);
break;
case XEventName.PropertyNotify:
// state - PropertyNewValue or PropertyDelete
OnProperty(e.PropertyEvent.state);
break;
case XEventName.VisibilityNotify:
OnVisibility();
break;
case XEventName.ClientMessage:
OnClientMessage();
break;
}
X11lib.XNextEvent(display, ref e);
} while (!stop);
X11lib.XCloseDisplay(display);
display = IntPtr.Zero;
window = IntPtr.Zero;
}