/*
 * jQuery UI 1.6rc6
 *
 * Copyright (c) 2009 AUTHORS.txt (http://ui.jquery.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI
 */
;(function($) {

var _remove = $.fn.remove,
  isFF2 = $.browser.mozilla && (parseFloat($.browser.version) < 1.9);

//Helper functions and ui object
$.ui = {
  version: "1.6rc6",

  // $.ui.plugin is deprecated.  Use the proxy pattern instead.
  plugin: {
    add: function(module, option, set) {
      var proto = $.ui[module].prototype;
      for(var i in set) {
        proto.plugins[i] = proto.plugins[i] || [];
        proto.plugins[i].push([option, set[i]]);
      }
    },
    call: function(instance, name, args) {
      var set = instance.plugins[name];
      if(!set) { return; }

      for (var i = 0; i < set.length; i++) {
        if (instance.options[set[i][0]]) {
          set[i][1].apply(instance.element, args);
        }
      }
    }
  },

  contains: function(a, b) {
    return document.compareDocumentPosition
      ? a.compareDocumentPosition(b) & 16
      : a !== b && a.contains(b);
  },

  cssCache: {},
  css: function(name) {
    if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }
    var tmp = $('<div class="ui-gen"></div>').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');

    //if (!$.browser.safari)
      //tmp.appendTo('body');

    //Opera and Safari set width and height to 0px instead of auto
    //Safari returns rgba(0,0,0,0) when bgcolor is not set
    $.ui.cssCache[name] = !!(
      (!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) ||
      !(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor')))
    );
    try { $('body').get(0).removeChild(tmp.get(0)); } catch(e){}
    return $.ui.cssCache[name];
  },

  hasScroll: function(el, a) {

    //If overflow is hidden, the element might have extra content, but the user wants to hide it
    if ($(el).css('overflow') == 'hidden') { return false; }

    var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop',
      has = false;

    if (el[scroll] > 0) { return true; }

    // TODO: determine which cases actually cause this to happen
    // if the element doesn't have the scroll set, see if it's possible to
    // set the scroll
    el[scroll] = 1;
    has = (el[scroll] > 0);
    el[scroll] = 0;
    return has;
  },

  isOverAxis: function(x, reference, size) {
    //Determines when x coordinate is over "b" element axis
    return (x > reference) && (x < (reference + size));
  },

  isOver: function(y, x, top, left, height, width) {
    //Determines when x, y coordinates is over "b" element
    return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
  },

  keyCode: {
    BACKSPACE: 8,
    CAPS_LOCK: 20,
    COMMA: 188,
    CONTROL: 17,
    DELETE: 46,
    DOWN: 40,
    END: 35,
    ENTER: 13,
    ESCAPE: 27,
    HOME: 36,
    INSERT: 45,
    LEFT: 37,
    NUMPAD_ADD: 107,
    NUMPAD_DECIMAL: 110,
    NUMPAD_DIVIDE: 111,
    NUMPAD_ENTER: 108,
    NUMPAD_MULTIPLY: 106,
    NUMPAD_SUBTRACT: 109,
    PAGE_DOWN: 34,
    PAGE_UP: 33,
    PERIOD: 190,
    RIGHT: 39,
    SHIFT: 16,
    SPACE: 32,
    TAB: 9,
    UP: 38
  }
};

// WAI-ARIA normalization
if (isFF2) {
  var attr = $.attr,
    removeAttr = $.fn.removeAttr,
    ariaNS = "http://www.w3.org/2005/07/aaa",
    ariaState = /^aria-/,
    ariaRole = /^wairole:/;

  $.attr = function(elem, name, value) {
    var set = value !== undefined;

    return (name == 'role'
      ? (set
        ? attr.call(this, elem, name, "wairole:" + value)
        : (attr.apply(this, arguments) || "").replace(ariaRole, ""))
      : (ariaState.test(name)
        ? (set
          ? elem.setAttributeNS(ariaNS,
            name.replace(ariaState, "aaa:"), value)
          : attr.call(this, elem, name.replace(ariaState, "aaa:")))
        : attr.apply(this, arguments)));
  };

  $.fn.removeAttr = function(name) {
    return (ariaState.test(name)
      ? this.each(function() {
        this.removeAttributeNS(ariaNS, name.replace(ariaState, ""));
      }) : removeAttr.call(this, name));
  };
}

//jQuery plugins
$.fn.extend({
  remove: function() {
    // Safari has a native remove event which actually removes DOM elements,
    // so we have to use triggerHandler instead of trigger (#3037).
    $("*", this).add(this).each(function() {
      $(this).triggerHandler("remove");
    });
    return _remove.apply(this, arguments );
  },

  enableSelection: function() {
    return this
      .attr('unselectable', 'off')
      .css('MozUserSelect', '')
      .unbind('selectstart.ui');
  },

  disableSelection: function() {
    return this
      .attr('unselectable', 'on')
      .css('MozUserSelect', 'none')
      .bind('selectstart.ui', function() { return false; });
  },

  scrollParent: function() {
    var scrollParent;
    if(($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
      scrollParent = this.parents().filter(function() {
        return (/(relative|absolute|fixed)/).test($.curCSS(this,'position',1)) && (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
      }).eq(0);
    } else {
      scrollParent = this.parents().filter(function() {
        return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
      }).eq(0);
    }

    return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
  }
});


//Additional selectors
$.extend($.expr[':'], {
  data: function(elem, i, match) {
    return !!$.data(elem, match[3]);
  },

  focusable: function(element) {
    var nodeName = element.nodeName.toLowerCase(),
      tabIndex = $.attr(element, 'tabindex');
    return (/input|select|textarea|button|object/.test(nodeName)
      ? !element.disabled
      : 'a' == nodeName || 'area' == nodeName
        ? element.href || !isNaN(tabIndex)
        : !isNaN(tabIndex))
      // the element and all of its ancestors must be visible
      // the browser may report that the area is hidden
      && !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
  },

  tabbable: function(element) {
    var tabIndex = $.attr(element, 'tabindex');
    return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(':focusable');
  }
});


// $.widget is a factory to create jQuery plugins
// taking some boilerplate code out of the plugin code
function getter(namespace, plugin, method, args) {
  function getMethods(type) {
    var methods = $[namespace][plugin][type] || [];
    return (typeof methods == 'string' ? methods.split(/,?\s+/) : methods);
  }

  var methods = getMethods('getter');
  if (args.length == 1 && typeof args[0] == 'string') {
    methods = methods.concat(getMethods('getterSetter'));
  }
  return ($.inArray(method, methods) != -1);
}

$.widget = function(name, prototype) {
  var namespace = name.split(".")[0];
  name = name.split(".")[1];

  // create plugin method
  $.fn[name] = function(options) {
    var isMethodCall = (typeof options == 'string'),
      args = Array.prototype.slice.call(arguments, 1);

    // prevent calls to internal methods
    if (isMethodCall && options.substring(0, 1) == '_') {
      return this;
    }

    // handle getter methods
    if (isMethodCall && getter(namespace, name, options, args)) {
      var instance = $.data(this[0], name);
      return (instance ? instance[options].apply(instance, args)
        : undefined);
    }

    // handle initialization and non-getter methods
    return this.each(function() {
      var instance = $.data(this, name);

      // constructor
      (!instance && !isMethodCall &&
        $.data(this, name, new $[namespace][name](this, options))._init());

      // method call
      (instance && isMethodCall && $.isFunction(instance[options]) &&
        instance[options].apply(instance, args));
    });
  };

  // create widget constructor
  $[namespace] = $[namespace] || {};
  $[namespace][name] = function(element, options) {
    var self = this;

    this.namespace = namespace;
    this.widgetName = name;
    this.widgetEventPrefix = $[namespace][name].eventPrefix || name;
    this.widgetBaseClass = namespace + '-' + name;

    this.options = $.extend({},
      $.widget.defaults,
      $[namespace][name].defaults,
      $.metadata && $.metadata.get(element)[name],
      options);

    this.element = $(element)
      .bind('setData.' + name, function(event, key, value) {
        if (event.target == element) {
          return self._setData(key, value);
        }
      })
      .bind('getData.' + name, function(event, key) {
        if (event.target == element) {
          return self._getData(key);
        }
      })
      .bind('remove', function() {
        return self.destroy();
      });

    if (this.widgetName == 'spinner') {
       this._init(); 
    }
  };

  // add widget prototype
  $[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);

  // TODO: merge getter and getterSetter properties from widget prototype
  // and plugin prototype
  $[namespace][name].getterSetter = 'option';
};

$.widget.prototype = {
  _init: function() {},
  destroy: function() {
    this.element.removeData(this.widgetName)
      .removeClass(this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled')
      .removeAttr('aria-disabled');
  },

  option: function(key, value) {
    var options = key,
      self = this;

    if (typeof key == "string") {
      if (value === undefined) {
        return this._getData(key);
      }
      options = {};
      options[key] = value;
    }

    $.each(options, function(key, value) {
      self._setData(key, value);
    });
  },
  _getData: function(key) {
    return this.options[key];
  },
  _setData: function(key, value) {
    this.options[key] = value;

    if (key == 'disabled') {
      this.element
        [value ? 'addClass' : 'removeClass'](
          this.widgetBaseClass + '-disabled' + ' ' +
          this.namespace + '-state-disabled')
        .attr("aria-disabled", value);
    }
  },

  enable: function() {
    this._setData('disabled', false);
  },
  disable: function() {
    this._setData('disabled', true);
  },

  _trigger: function(type, event, data) {
    var callback = this.options[type],
      eventName = (type == this.widgetEventPrefix
        ? type : this.widgetEventPrefix + type);

    event = $.Event(event);
    event.type = eventName;

    // copy original event properties over to the new event
    // this would happen if we could call $.event.fix instead of $.Event
    // but we don't have a way to force an event to be fixed multiple times
    if (event.originalEvent) {
      for (var i = $.event.props.length, prop; i;) {
        prop = $.event.props[--i];
        event[prop] = event.originalEvent[prop];
      }
    }

    this.element.trigger(event, data);

    return !($.isFunction(callback) && callback.call(this.element[0], event, data) === false
      || event.isDefaultPrevented());
  }
};

$.widget.defaults = {
  disabled: false
};


/** Mouse Interaction Plugin **/

$.ui.mouse = {
  _mouseInit: function() {
    var self = this;

    this.element
      .bind('mousedown.'+this.widgetName, function(event) {
        return self._mouseDown(event);
      })
      .bind('click.'+this.widgetName, function(event) {
        if(self._preventClickEvent) {
          self._preventClickEvent = false;
          return false;
        }
      });

    // Prevent text selection in IE
    if ($.browser.msie) {
      this._mouseUnselectable = this.element.attr('unselectable');
      this.element.attr('unselectable', 'on');
    }

    this.started = false;
  },

  // TODO: make sure destroying one instance of mouse doesn't mess with
  // other instances of mouse
  _mouseDestroy: function() {
    this.element.unbind('.'+this.widgetName);

    // Restore text selection in IE
    ($.browser.msie
      && this.element.attr('unselectable', this._mouseUnselectable));
  },

  _mouseDown: function(event) {
    // don't let more than one widget handle mouseStart
    if (event.originalEvent.mouseHandled) { return; }

    // we may have missed mouseup (out of window)
    (this._mouseStarted && this._mouseUp(event));

    this._mouseDownEvent = event;

    var self = this,
      btnIsLeft = (event.which == 1),
      elIsCancel = (typeof this.options.cancel == "string" ? $(event.target).parents().add(event.target).filter(this.options.cancel).length : false);
    if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
      return true;
    }

    this.mouseDelayMet = !this.options.delay;
    if (!this.mouseDelayMet) {
      this._mouseDelayTimer = setTimeout(function() {
        self.mouseDelayMet = true;
      }, this.options.delay);
    }

    if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
      this._mouseStarted = (this._mouseStart(event) !== false);
      if (!this._mouseStarted) {
        event.preventDefault();
        return true;
      }
    }

    // these delegates are required to keep context
    this._mouseMoveDelegate = function(event) {
      return self._mouseMove(event);
    };
    this._mouseUpDelegate = function(event) {
      return self._mouseUp(event);
    };
    $(document)
      .bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
      .bind('mouseup.'+this.widgetName, this._mouseUpDelegate);

    // preventDefault() is used to prevent the selection of text here -
    // however, in Safari, this causes select boxes not to be selectable
    // anymore, so this fix is needed
    ($.browser.safari || event.preventDefault());

    event.originalEvent.mouseHandled = true;
    return true;
  },

  _mouseMove: function(event) {
    // IE mouseup check - mouseup happened when mouse was out of window
    if ($.browser.msie && !event.button) {
      return this._mouseUp(event);
    }

    if (this._mouseStarted) {
      this._mouseDrag(event);
      return event.preventDefault();
    }

    if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
      this._mouseStarted =
        (this._mouseStart(this._mouseDownEvent, event) !== false);
      (this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
    }

    return !this._mouseStarted;
  },

  _mouseUp: function(event) {
    $(document)
      .unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
      .unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);

    if (this._mouseStarted) {
      this._mouseStarted = false;
      this._preventClickEvent = true;
      this._mouseStop(event);
    }

    return false;
  },

  _mouseDistanceMet: function(event) {
    return (Math.max(
        Math.abs(this._mouseDownEvent.pageX - event.pageX),
        Math.abs(this._mouseDownEvent.pageY - event.pageY)
      ) >= this.options.distance
    );
  },

  _mouseDelayMet: function(event) {
    return this.mouseDelayMet;
  },

  // These are placeholder methods, to be overriden by extending plugin
  _mouseStart: function(event) {},
  _mouseDrag: function(event) {},
  _mouseStop: function(event) {},
  _mouseCapture: function(event) { return true; }
};

$.ui.mouse.defaults = {
  cancel: null,
  distance: 1,
  delay: 0
};

})(jQuery);