Async GrabKey

[ewnd9]

I am trying something like X.GrabKey(root, 0, 0, 65, false, true); to capture space keypresses. How can I propagate keypress event to all system? Right now script is blocking space key, so the system doesn't see it.

[sidorares]

could you post more code?

[ewnd9]

Sorry, should have done it in the first message

var x11 = require('x11');

x11.createClient(function(error, display) {
    var X = display.client;
    var root = display.screen[0].root;

    var space = 65;

    var pointerMode = false;
    var keyboardMode = true;

    X.GrabKey(root, 0, 0, space, pointerMode, keyboardMode);
}).on('event', function(event) {
    console.log(event);
});

[sidorares]

I'm not sure that just by grabbing keyboard you are selection corresponding event mask. Try to add ChangeAttribute on root window with corresponding key event mask. ( I'll post code once I have example working )

[polpo]

X.GrabKey is supposed to take 0 for GrabModeSync and 1 for GrabModeAsync, not false and true.

[polpo]

Well, looks like Buffer converts false to 0 and true to 1, so that is not the issue.

[sidorares]

@ewnd9 this code works for me ( I have 57 as key code for space )

var x11 = require('./');

x11.createClient(function(error, display) {
    var X = display.client;
    var root = display.screen[0].root;

    var space = 57;

    var pointerMode = false;
    var keyboardMode = true;

    X.GrabKey(root, 0, 0, space, pointerMode, keyboardMode);
    X.ChangeWindowAttributes(root, { eventMask: x11.eventMask.KeyPress });


}).on('event', function(event) {
    console.log(event);
});

[ewnd9]

No luck for me

[sidorares]

how do you test it? Do you get events printed when focus is on root window? I used Xephyr for test to avoid interaction with window manager

[ewnd9]

I ran directly in terminal, events are always printed. Example: I start script and when I print in browser / other terminal sequence "a" "space" "b" I get "ab" in input

[sidorares]

this seems like how it should work: because you grabbed space it was routed to root window instead of browser

[ewnd9]

So, it is not possible to propagate events from cli? I'm trying to archive global keybindings for cli apps