  /**
   * 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;
      }
  };
