Shuo/client/components/inputhistory.js

63 lines
1.1 KiB
JavaScript

/*!
* inputhistory
* https://github.com/erming/inputhistory
* v0.2.1
*/
(function($) {
$.fn.history = // Alias
$.fn.inputhistory = function(options) {
var settings = $.extend({
history: [],
submit: false,
}, options);
var self = this;
if (self.size() > 1) {
return self.each(function() {
$(this).history(options);
});
}
self.data('history', settings.history.concat(['']));
var i = 0;
self.on('keydown', function(e) {
var history = self.data('history');
var key = e.which;
switch (key) {
case 13: // Enter
if (self.val() != '') {
i = history.length;
history[i - 1] = self.val();
history.push('');
}
if (settings.submit) {
self.parents('form').eq(0).submit();
}
self.val('');
break;
case 38: // Up
case 40: // Down
history[i] = self.val();
if (key == 38 && i != 0) {
i--;
} else if (key == 40 && i < history.length - 1) {
i++;
}
self.val(history[i]);
break;
default:
return;
}
return false;
});
return this;
}
})(jQuery);