wanted to extend jQuery to handle a custom enter key event based on tabindex
- by ullasvk
I write the following code to handle when the enter key pressed an with few validation like if it is a textarea allow only four lines and if the value is empty, focus on itself.
var temp = 1;
function getLines(id)
{
return temp=temp+id;
}
$("#theform").keypress(function(e){
var key = e.charCode ? e.charCode : e.keyCode ? e.keyCode : 0;
if (key == 13) {
var $targ = $(e.target);
var tindex = $targ.attr("tabindex");
var count =1;
var focusNext = false;
var allowedNumberOfLines = 4;
if ($targ.is("textarea") && !$targ.is(":button,:submit")) {
var lines= getLines(count);
if (lines > allowedNumberOfLines)
{
$("#login_error").css('background', '#F7F77C').fadeIn(1000).html("Only "+allowedNumberOfLines+" Lines Allowed").fadeOut(1000);
tindex++;
$("[tabindex=" + tindex + "]").focus();
return false;
}
}
else if($targ.val() =='' || $targ.val() == "undefined")
{
$("[tabindex=" + tindex + "]").focus();
return false;
}
else if($targ.val() !='' || $targ.val() != "undefined")
{
tindex++;
$("[tabindex=" + tindex + "]").focus();
return false;
}
}
});
Is there any way to make it a custom function so that i can just call the function like
$('theform').returnPress();
