Interesting related videos

Loading...

Monday, March 19, 2007

Cross Browser Keyboard Support

First here is an excellant article on keystroke detection keystroke detection

Here is the code in order to support Cross Browser Keyboard:


document.onkeydown = function(e) {handleKeys(e)}
document.onkeypress = function(e) {handleKeys(e)}
var nonChar = false;

function handleKeys(e) {
var char;
var evt = (e) ? e : window.event; //IE reports window.event not arg
if (evt.type == "keydown") {
char = evt.keycode;
if (char < 16 || // non printables
(char > 16 && char < 32) || // avoid shift
(char > 32 && char < 41) || // navigation keys
char == 46) { // Delete Key (Add to these if you need)
handleNonChar(char); // function to handle non Characters
nonChar = true;
} else
nonChar = false;
} else { // This is keypress
if (nonChar) return; // Already Handled on keydown
char = (evt.charCode) ?
evt.charCode : evt.keyCode;
if (char > 31 && char < 256) // safari and opera
handleChar(char); //
}
if (e) // Non IE
Event.stop(evt); // Using prototype
else if (evt.keyCode == 8) // Catch IE backspace
evt.returnValue = false; // and stop it!
}

No comments: