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/**
* @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
/**
* Unobtrusive Form Validation library
*
* Inspired by: Chris Campbell <www.particletree.com>
*
* @package Joomla.Framework
* @subpackage Forms
* @since 1.5
*/
var JFormValidator = function() {
var $, handlers, inputEmail, custom,
setHandler = function(name, fn, en) {
en = (en === '') ? true : en;
handlers[name] = {
enabled : en,
exec : fn
};
},
findLabel = function(id, form){
var $label, $form = jQuery(form);
if (!id) {
return false;
}
$label = $form.find('#' + id + '-lbl');
if ($label.length) {
return $label;
}
$label = $form.find('label[for="' + id + '"]');
if ($label.length) {
return $label;
}
return false;
},
handleResponse = function(state, $el) {
var $label = $el.data('label');
// Set the element and its label (if exists) invalid state
if (state === false) {
$el.addClass('invalid').attr('aria-invalid', 'true');
if($label){
$label.addClass('invalid').attr('aria-invalid', 'true');
}
} else {
$el.removeClass('invalid').attr('aria-invalid', 'false');
if($label){
$label.removeClass('invalid').attr('aria-invalid', 'false');
}
}
},
validate = function(el) {
var $el = jQuery(el), tagName, handler;
// Ignore the element if its currently disabled, because are not submitted for the http-request. For those case return always true.
if ($el.attr('disabled')) {
handleResponse(true, $el);
return true;
}
// If the field is required make sure it has a value
if ($el.attr('required') || $el.hasClass('required')) {
tagName = $el.prop("tagName").toLowerCase();
if (tagName === 'fieldset' && ($el.hasClass('radio') || $el.hasClass('checkboxes'))) {
if (!$el.find('input:checked').length){
handleResponse(false, $el);
return false;
}
//If element has class placeholder that means it is empty.
} else if (!$el.val() || $el.hasClass('placeholder') || ($el.attr('type') === 'checkbox' && !$el.is(':checked'))) {
handleResponse(false, $el);
return false;
}
}
// Only validate the field if the validate class is set
handler = ($el.attr('class') && $el.attr('class').match(/validate-([a-zA-Z0-9\_\-]+)/)) ? $el.attr('class').match(/validate-([a-zA-Z0-9\_\-]+)/)[1] : "";
if (handler === '') {
handleResponse(true, $el);
return true;
}
// Check the additional validation types
if ((handler) && (handler !== 'none') && (handlers[handler]) && $el.val()) {
// Execute the validation handler and return result
if (handlers[handler].exec($el.val()) !== true) {
handleResponse(false, $el);
return false;
}
}
// Return validation state
handleResponse(true, $el);
return true;
},
isValid = function(form) {
var valid = true, i, message, errors, error, label;
// Validate form fields
jQuery.each(jQuery(form).find('input, textarea, select, fieldset, button'), function(index, el) {
if (validate(el) === false) {
valid = false;
}
});
// Run custom form validators if present
jQuery.each(custom, function(key, validator) {
if (validator.exec() !== true) {
valid = false;
}
});
if (!valid) {
message = Joomla.JText._('JLIB_FORM_FIELD_INVALID');
errors = jQuery("input.invalid, textarea.invalid, select.invalid, fieldset.invalid, button.invalid");
error = {};
error.error = [];
for ( i = 0; i < errors.length; i++) {
label = jQuery('label[for=' + errors[i].id + ']').text();
if (label !== 'undefined') {
error.error[i] = message + label.replace("*", "");
}
}
Joomla.renderMessages(error);
}
return valid;
},
attachToForm = function(form) {
var inputFields = [];
// Iterate through the form object and attach the validate method to all input fields.
jQuery(form).find('input, textarea, select, fieldset, button').each(function() {
var $el = $(this), id = $el.attr('id'), tagName = $el.prop("tagName").toLowerCase();
if ($el.hasClass('required')) {
$el.attr('aria-required', 'true').attr('required', 'required');
}
if ((tagName === 'input' || tagName === 'button') && $el.attr('type') === 'submit') {
if ($el.hasClass('validate')) {
$el.on('click', function() {
return isValid(form);
});
}
} else {
if (tagName !== 'fieldset') {
$el.on('blur', function() {
return validate(this);
});
if ($el.hasClass('validate-email') && inputEmail) {
$el.get(0).type = 'email';
}
}
$el.data('label', findLabel(id, form));
inputFields.push($el);
}
});
$(form).data('inputfields', inputFields);
},
initialize = function() {
$ = jQuery.noConflict();
handlers = {};
custom = custom || {};
inputEmail = (function() {
var input = document.createElement("input");
input.setAttribute("type", "email");
return input.type !== "text";
})();
// Default handlers
setHandler('username', function(value) {
regex = new RegExp("[\<|\>|\"|\'|\%|\;|\(|\)|\&]", "i");
return !regex.test(value);
});
setHandler('password', function(value) {
regex = /^\S[\S ]{2,98}\S$/;
return regex.test(value);
});
setHandler('numeric', function(value) {
regex = /^(\d|-)?(\d|,)*\.?\d*$/;
return regex.test(value);
});
setHandler('email', function(value) {
value = punycode.toASCII(value);
regex = /^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/;
return regex.test(value);
});
// Attach to forms with class 'form-validate'
jQuery('form.form-validate').each(function() {
attachToForm(this);
});
};
// Initialize handlers and attach validation to form
initialize();
return {
isValid : isValid,
validate : validate,
setHandler : setHandler,
attachToForm : attachToForm,
custom: custom
};
};
document.formvalidator = null;
jQuery(function() {
document.formvalidator = new JFormValidator();
});