Reputation: 1166
I'm trying to capture certain keydown events in my application but only if no "control" keys have been held down at the same time. I don't want to run into issues with screen reader keyboard shortcuts. Shift
, Ctrl
and Alt
are easy to check for because they're on the javascript event, but I also need to check for Ins
and Windows
keys as well as any Mac control keys.
This is what I've got so far and it works as expected, but my event is still triggered when Ins
or Windows
is held down.
handleKeydown: function(event) {
var comboKeyPressed = event.ctrlKey || event.shiftKey || event.altKey;
if(!comboKeyPressed && event.keyCode === $.ui.keyCode.HOME) {
event.preventDefault();
this.$('>ul>li:last').attr('tabindex', -1);
this.$('>ul>li:first').attr('tabindex', 0).focus();
} else if (!comboKeyPressed && event.keyCode === $.ui.keyCode.END) {
event.preventDefault();
this.$('>ul>li:first').attr('tabindex', -1);
this.$('>ul>li:last').attr('tabindex', 0).focus();
}
}
Is there a way to check for other control keys easily or do I need to capture those events and hold onto them in some global Boolean like this.isInsertPressed
?
Upvotes: 5
Views: 3657
Reputation: 47127
event.key
and modern JS!No number codes anymore. You can check for Insert key directly.
let isInsertDown = false;
document.addEventListener("keydown", ({key}) => {
if (key === "Insert") {
isInsertDown = true;
}
});
document.addEventListener("keyup", ({key}) => {
if (key === "Insert") {
isInsertDown = false;
}
});
Upvotes: 5
Reputation: 27012
You could do something like this:
var keysPressed = {};
var keys = { insert: 45 };
$(window).keydown(function(e) { keysPressed[e.which] = true; });
$(window).keyup(function(e) { keysPressed[e.which] = false; });
And then later:
if (keysPressed[keys.insert]) {
// insert key is currently down
}
Upvotes: 2
Reputation: 55750
Use keycode property in the Event object
if(event.keyCode === 45) // Insert Key
Upvotes: 1