/*!
* jQuery UI Stars v2.1.1
* http://plugins.jquery.com/project/Star_Rating_widget
*
* Copyright (c) 2009 Orkan (orkans@gmail.com)
* Dual licensed under the MIT and GPL licenses.
* http://docs.jquery.com/License
*
* $Rev: 114 $
* $Date:: 2009-06-12 #$
* $Build: 32 (2009-06-12)
*
* Depends:
*  ui.core.js
*
*/
(function($) {

  $.widget("ui.stars",
{
  _init: function() {
    var self = this, o = this.options, id = 0;

    o.isSelect = o.inputType == "select";
    this.$form = $(this.element).closest("form");
    this.$selec = o.isSelect ? $("select", this.element) : null;
    this.$rboxs = o.isSelect ? $("option", this.$selec) : $(":radio", this.element);

    /*
    * Map all inputs from $rboxs array to Stars elements
    */
    this.$stars = this.$rboxs.map(function(i) {
      var el = {
        value: this.value,
        title: (o.isSelect ? this.text : this.title) || this.value,
        isDefault: (o.isSelect && this.defaultSelected) || this.defaultChecked
      };

      if (i == 0) {
        o.split = typeof o.split != "number" ? 0 : o.split;
        o.val2id = [];
        o.id2val = [];
        o.id2title = [];
        o.name = o.isSelect ? self.$selec.get(0).name : this.name;
        o.disabled = o.disabled || (o.isSelect ? $(self.$selec).attr("disabled") : $(this).attr("disabled"));
      }

      /*
      * Consider it as a Cancel button?
      */
      if (el.value == o.cancelValue) {
        o.cancelTitle = el.title;
        return null;
      }

      o.val2id[el.value] = id;
      o.id2val[id] = el.value;
      o.id2title[id] = el.title;

      if (el.isDefault) {
        o.checked = id;
        o.value = o.defaultValue = el.value;
        o.title = el.title;
      }


      var $s = $("<div/>").addClass(o.starClass);
      var $a = $('<a/>').attr("title", o.showTitles ? el.title : "").text(el.value);

      /*
      * Prepare division settings
      */
      if (o.split) {
        var oddeven = (id % o.split);
        var stwidth = Math.floor(o.starWidth / o.split);
        $s.width(stwidth);
        $a.css("margin-left", "-" + (oddeven * stwidth) + "px");
      }

      id++;
      return $s.append($a).get(0);
    });

    /*
    * How many Stars?
    */
    o.items = id;

    /*
    * Remove old content
    */
    o.isSelect ? this.$selec.remove() : this.$rboxs.remove();

    /*
    * Append Stars interface
    */
    this.$cancel = $("<div/>").addClass(o.cancelClass).append($("<a/>").attr("title", o.showTitles ? o.cancelTitle : "").text(o.cancelValue));
    o.cancelShow &= !o.disabled && !o.oneVoteOnly;
    o.cancelShow && this.element.append(this.$cancel);
    this.element.append(this.$stars);

    /*
    * Initial selection
    */
    if (o.checked === undefined) {
      o.checked = -1;
      o.value = o.defaultValue = o.cancelValue;
      o.title = "";
    }

    //    var hidden = document.getElementsByName(o.name);
    //    alert(hidden[0].value);      //      if (hidden[0] != null)
    //    //        hidden[0].click();


    this.$value = $('<input id="' + o.hiddenId + '" type="hidden" name="' + o.name + '" value="' + o.value + '" />');
    this.element.append(this.$value);


    /*
    * Attach stars event handler
    */
    this.$stars.bind("click.stars", function(e) {
      if (!o.forceSelect && o.disabled) return false;

      var i = self.$stars.index(this);
      o.checked = i;
      o.value = o.id2val[i];
      o.title = o.id2title[i];
      self.$value.attr({ disabled: o.disabled ? "disabled" : "", value: o.value });

      fillTo(i, false);

      //abilita OnClick dell'hiddenStarElement solo se nn è il primo caricamento delle stars
      if (o.forceSelect == false) {
        eval(o.functionOnVote);
      }

      self._disableCancel();

      !o.forceSelect && self.callback(e, "star");
    })
    .bind("mouseover.stars", function() {
      if (o.disabled) return false;
      var i = self.$stars.index(this);
      fillTo(i, true);
    })
    .bind("mouseout.stars", function() {
      if (o.disabled) return false;
      fillTo(self.options.checked, false);
    });


    /*
    * Attach cancel event handler
    */
    this.$cancel.bind("click.stars", function(e) {
      if (!o.forceSelect && (o.disabled || o.value == o.cancelValue)) return false;

      o.checked = -1;
      o.value = o.cancelValue;
      o.title = "";
      self.$value.val(o.value).attr({ disabled: "disabled" });

      fillNone();
      self._disableCancel();

      !o.forceSelect && self.callback(e, "cancel");
    })
    .bind("mouseover.stars", function() {
      if (self._disableCancel()) return false;
      self.$cancel.addClass(o.cancelHoverClass);
      fillNone();
      self._showCap(o.cancelTitle);
    })
    .bind("mouseout.stars", function() {
      if (self._disableCancel()) return false;
      self.$cancel.removeClass(o.cancelHoverClass);
      self.$stars.triggerHandler("mouseout.stars");
    });


    /*
    * Attach onReset event handler to the parent FORM
    */
    this.$form.bind("reset.stars", function() {
      !o.disabled && self.select(o.defaultValue);
    });


    /*
    * Clean up to avoid memory leaks in certain versions of IE 6
    */
    $(window).unload(function() {
      self.$cancel.unbind(".stars");
      self.$stars.unbind(".stars");
      self.$form.unbind(".stars");
      self.$selec = self.$rboxs = self.$stars = self.$value = self.$cancel = self.$form = null;
    });


    /*
    * Star selection helpers
    */
    function fillTo(index, hover) {
      if (index != -1) {
        var addClass = hover ? o.starHoverClass : o.starOnClass;
        var remClass = hover ? o.starOnClass : o.starHoverClass;
        self.$stars.eq(index).prevAll("." + o.starClass).andSelf().removeClass(remClass).addClass(addClass);
        self.$stars.eq(index).nextAll("." + o.starClass).removeClass(o.starHoverClass + " " + o.starOnClass);
        self._showCap(o.id2title[index]);
      }
      else fillNone();
    };
    function fillNone() {
      self.$stars.removeClass(o.starOnClass + " " + o.starHoverClass);
      self._showCap("");
    };


    /*
    * Finally, set up the Stars
    */
    this.select(o.value);
    o.disabled && this.disable();

  },

  /*
  * Private functions
  */
  _disableCancel: function() {
    var o = this.options, disabled = o.disabled || o.oneVoteOnly || (o.value == o.cancelValue);
    if (disabled) this.$cancel.removeClass(o.cancelHoverClass).addClass(o.cancelDisabledClass);
    else this.$cancel.removeClass(o.cancelDisabledClass);
    this.$cancel.css("opacity", disabled ? 0.5 : 1);
    return disabled;
  },
  _disableAll: function() {
    var o = this.options;
    this._disableCancel();
    if (o.disabled) this.$stars.filter("div").addClass(o.starDisabledClass);
    else this.$stars.filter("div").removeClass(o.starDisabledClass);
  },
  _showCap: function(s) {
    var o = this.options;
    if (o.captionEl) o.captionEl.text(s);
  },

  /*
  * Public functions
  */
  value: function() {
    return this.options.value;
  },
  select: function(val) {
    var o = this.options, e = (val == o.cancelValue) ? this.$cancel : this.$stars.eq(o.val2id[val]);
    o.forceSelect = true;
    e.triggerHandler("click.stars");
    o.forceSelect = false;
  },
  selectID: function(id) {
    var o = this.options, e = (id == -1) ? this.$cancel : this.$stars.eq(id);
    o.forceSelect = true;
    e.triggerHandler("click.stars");
    o.forceSelect = false;
  },
  enable: function() {
    this.options.disabled = false;
    this._disableAll();
  },
  disable: function() {
    this.options.disabled = true;
    this._disableAll();
  },
  destroy: function() {
    this.options.isSelect ? this.$selec.appendTo(this.element) : this.$rboxs.appendTo(this.element);
    this.$form.unbind(".stars");
    this.$cancel.unbind(".stars").remove();
    this.$stars.unbind(".stars").remove();
    this.$value.remove();
    this.element.unbind(".stars").removeData("stars");
  },
  callback: function(e, type) {
    var o = this.options;
    o.callback && o.callback(this, type, o.value, e);
    o.oneVoteOnly && !o.disabled && this.disable();
  }
});

  $.extend($.ui.stars, {
    version: "2.1.1",
    getter: "value",
    defaults: {
      inputType: "radio", // radio|select
      split: 0,
      disabled: false,
      cancelTitle: "Cancel Rating",
      cancelValue: 0,
      cancelShow: true,
      oneVoteOnly: false,
      showTitles: false,
      captionEl: null,
      callback: null, // function(ui, type, value, event)


      /*
      * CSS classes
      */
      starWidth: 16,
      cancelClass: 'ui-stars-cancel',
      starClass: 'ui-stars-star',
      starOnClass: 'ui-stars-star-on',
      starHoverClass: 'ui-stars-star-hover',
      starDisabledClass: 'ui-stars-star-disabled',
      cancelHoverClass: 'ui-stars-cancel-hover',
      cancelDisabledClass: 'ui-stars-cancel-disabled'
    }
  });

})(jQuery);