source: trunk/library/tiny_mce/utils/validate.js @ 4829

/**
 * validate.js
 *
 * Copyright 2009, Moxiecode Systems AB
 * Released under LGPL License.
 *
 * License: http://tinymce.moxiecode.com/license
 * Contributing: http://tinymce.moxiecode.com/contributing
 */

/**
        // String validation:

        if (!Validator.isEmail('myemail'))
                alert('Invalid email.');

        // Form validation:

        var f = document.forms['myform'];

        if (!Validator.isEmail(f.myemail))
                alert('Invalid email.');
*/

var Validator = {
        isEmail : function(s) {
                return this.test(s, '^[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+@[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$');
        },

        isAbsUrl : function(s) {
                return this.test(s, '^(news|telnet|nttp|file|http|ftp|https)://[-A-Za-z0-9\\.]+\\/?.*$');
        },

        isSize : function(s) {
                return this.test(s, '^[0-9.]+(%|in|cm|mm|em|ex|pt|pc|px)?$');
        },

        isId : function(s) {
                return this.test(s, '^[A-Za-z_]([A-Za-z0-9_])*$');
        },

        isEmpty : function(s) {
                var nl, i;

                if (s.nodeName == 'SELECT' && s.selectedIndex < 1)
                        return true;

                if (s.type == 'checkbox' && !s.checked)
                        return true;

                if (s.type == 'radio') {
                        for (i=0, nl = s.form.elements; i<nl.length; i++) {
                                if (nl[i].type == "radio" && nl[i].name == s.name && nl[i].checked)
                                        return false;
                        }

                        return true;
                }

                return new RegExp('^\\s*$').test(s.nodeType == 1 ? s.value : s);
        },

        isNumber : function(s, d) {
                return !isNaN(s.nodeType == 1 ? s.value : s) && (!d || !this.test(s, '^-?[0-9]*\\.[0-9]*$'));
        },

        test : function(s, p) {
                s = s.nodeType == 1 ? s.value : s;

                return s == '' || new RegExp(p).test(s);
        }
};

var AutoValidator = {
        settings : {
                id_cls : 'id',
                int_cls : 'int',
                url_cls : 'url',
                number_cls : 'number',
                email_cls : 'email',
                size_cls : 'size',
                required_cls : 'required',
                invalid_cls : 'invalid',
                min_cls : 'min',
                max_cls : 'max'
        },

        init : function(s) {
                var n;

                for (n in s)
                        this.settings[n] = s[n];
        },

        validate : function(f) {
                var i, nl, s = this.settings, c = 0;

                nl = this.tags(f, 'label');
                for (i=0; i<nl.length; i++) {
                        this.removeClass(nl[i], s.invalid_cls);
                        nl[i].setAttribute('aria-invalid', false);
                }

                c += this.validateElms(f, 'input');
                c += this.validateElms(f, 'select');
                c += this.validateElms(f, 'textarea');

                return c == 3;
        },

        invalidate : function(n) {
                this.mark(n.form, n);
        },
        
        getErrorMessages : function(f) {
                var nl, i, s = this.settings, field, msg, values, messages = [], ed = tinyMCEPopup.editor;
                nl = this.tags(f, "label");
                for (i=0; i<nl.length; i++) {
                        if (this.hasClass(nl[i], s.invalid_cls)) {
                                field = document.getElementById(nl[i].getAttribute("for"));
                                values = { field: nl[i].textContent };
                                if (this.hasClass(field, s.min_cls, true)) {
                                        message = ed.getLang('invalid_data_min');
                                        values.min = this.getNum(field, s.min_cls);
                                } else if (this.hasClass(field, s.number_cls)) {
                                        message = ed.getLang('invalid_data_number');
                                } else if (this.hasClass(field, s.size_cls)) {
                                        message = ed.getLang('invalid_data_size');
                                } else {
                                        message = ed.getLang('invalid_data');
                                }
                                
                                message = message.replace(/{\#([^}]+)\}/g, function(a, b) {
                                        return values[b] || '{#' + b + '}';
                                });
                                messages.push(message);
                        }
                }
                return messages;
        },

        reset : function(e) {
                var t = ['label', 'input', 'select', 'textarea'];
                var i, j, nl, s = this.settings;

                if (e == null)
                        return;

                for (i=0; i<t.length; i++) {
                        nl = this.tags(e.form ? e.form : e, t[i]);
                        for (j=0; j<nl.length; j++) {
                                this.removeClass(nl[j], s.invalid_cls);
                                nl[j].setAttribute('aria-invalid', false);
                        }
                }
        },

        validateElms : function(f, e) {
                var nl, i, n, s = this.settings, st = true, va = Validator, v;

                nl = this.tags(f, e);
                for (i=0; i<nl.length; i++) {
                        n = nl[i];

                        this.removeClass(n, s.invalid_cls);

                        if (this.hasClass(n, s.required_cls) && va.isEmpty(n))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.number_cls) && !va.isNumber(n))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.int_cls) && !va.isNumber(n, true))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.url_cls) && !va.isAbsUrl(n))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.email_cls) && !va.isEmail(n))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.size_cls) && !va.isSize(n))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.id_cls) && !va.isId(n))
                                st = this.mark(f, n);

                        if (this.hasClass(n, s.min_cls, true)) {
                                v = this.getNum(n, s.min_cls);

                                if (isNaN(v) || parseInt(n.value) < parseInt(v))
                                        st = this.mark(f, n);
                        }

                        if (this.hasClass(n, s.max_cls, true)) {
                                v = this.getNum(n, s.max_cls);

                                if (isNaN(v) || parseInt(n.value) > parseInt(v))
                                        st = this.mark(f, n);
                        }
                }

                return st;
        },

        hasClass : function(n, c, d) {
                return new RegExp('\\b' + c + (d ? '[0-9]+' : '') + '\\b', 'g').test(n.className);
        },

        getNum : function(n, c) {
                c = n.className.match(new RegExp('\\b' + c + '([0-9]+)\\b', 'g'))[0];
                c = c.replace(/[^0-9]/g, '');

                return c;
        },

        addClass : function(n, c, b) {
                var o = this.removeClass(n, c);
                n.className = b ? c + (o != '' ? (' ' + o) : '') : (o != '' ? (o + ' ') : '') + c;
        },

        removeClass : function(n, c) {
                c = n.className.replace(new RegExp("(^|\\s+)" + c + "(\\s+|$)"), ' ');
                return n.className = c != ' ' ? c : '';
        },

        tags : function(f, s) {
                return f.getElementsByTagName(s);
        },

        mark : function(f, n) {
                var s = this.settings;

                this.addClass(n, s.invalid_cls);
                n.setAttribute('aria-invalid', 'true');
                this.markLabels(f, n, s.invalid_cls);

                return false;
        },

        markLabels : function(f, n, ic) {
                var nl, i;

                nl = this.tags(f, "label");
                for (i=0; i<nl.length; i++) {
                        if (nl[i].getAttribute("for") == n.id || nl[i].htmlFor == n.id)
                                this.addClass(nl[i], ic);
                }

                return null;
        }
};