(function ($) {
$.fn.enableCellNavigation = function () {
var arrow = {
left: 37,
up: 38,
right: 39,
down: 40
};
this.find('input').keydown(function (e) {
// shortcut for key other than arrow keys
if ($.inArray(e.which, [arrow.left, arrow.up, arrow.right, arrow.down]) < 0) {
return;
}
var input = e.target;
var td = $(e.target).closest('td');
var moveTo = null;
switch (e.which) {
case arrow.left:
{
if (input.selectionStart == 0) {
moveTo = td.prev('td:has(input,textarea)');
}
break;
}
case arrow.right:
{
if (input.selectionEnd == input.value.length) {
moveTo = td.next('td:has(input,textarea)');
}
break;
}
case arrow.up:
case arrow.down:
{
var tr = td.closest('tr');
var pos = td[0].cellIndex;
var moveToRow = null;
if (e.which == arrow.down) {
moveToRow = tr.next('tr');
} else if (e.which == arrow.up) {
moveToRow = tr.prev('tr');
}
if (moveToRow.length) {
moveTo = $(moveToRow[0].cells[pos]);
}
break;
}
}
if (moveTo && moveTo.length) {
e.preventDefault();
moveTo.find('input,textarea').each(function (i, input) {
input.focus();
input.select();
});
}
});
};
})(jQuery);
$(function () {
$('#people').enableCellNavigation();
});
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