ambari/ambari-web/vendor/scripts/jquery.ui.widget.js

/*!
 * jQuery UI Widget 1.8.23
 *
 * Copyright 2012, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Widget
 */
(function ($, undefined) {

// jQuery 1.4+
  if ($.cleanData) {
    var _cleanData = $.cleanData;
    $.cleanData = function (elems) {
      for (var i = 0, elem; (elem = elems[i]) != null; i++) {
        try {
          $(elem).triggerHandler("remove");
          // http://bugs.jquery.com/ticket/8235
        } catch (e) {
        }
      }
      _cleanData(elems);
    };
  } else {
    var _remove = $.fn.remove;
    $.fn.remove = function (selector, keepData) {
      return this.each(function () {
        if (!keepData) {
          if (!selector || $.filter(selector, [ this ]).length) {
            $("*", this).add([ this ]).each(function () {
              try {
                $(this).triggerHandler("remove");
                // http://bugs.jquery.com/ticket/8235
              } catch (e) {
              }
            });
          }
        }
        return _remove.call($(this), selector, keepData);
      });
    };
  }

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

    if (!prototype) {
      prototype = base;
      base = $.Widget;
    }

    // create selector for plugin
    $.expr[ ":" ][ fullName ] = function (elem) {
      return !!$.data(elem, name);
    };

    $[ namespace ] = $[ namespace ] || {};
    $[ namespace ][ name ] = function (options, element) {
      // allow instantiation without initializing for simple inheritance
      if (arguments.length) {
        this._createWidget(options, element);
      }
    };

    var basePrototype = new base();
    // we need to make the options hash a property directly on the new instance
    // otherwise we'll modify the options hash on the prototype that we're
    // inheriting from
//	$.each( basePrototype, function( key, val ) {
//		if ( $.isPlainObject(val) ) {
//			basePrototype[ key ] = $.extend( {}, val );
//		}
//	});
    basePrototype.options = $.extend(true, {}, basePrototype.options);
    $[ namespace ][ name ].prototype = $.extend(true, basePrototype, {
      namespace:namespace,
      widgetName:name,
      widgetEventPrefix:$[ namespace ][ name ].prototype.widgetEventPrefix || name,
      widgetBaseClass:fullName
    }, prototype);

    $.widget.bridge(name, $[ namespace ][ name ]);
  };

  $.widget.bridge = function (name, object) {
    $.fn[ name ] = function (options) {
      var isMethodCall = typeof options === "string",
        args = Array.prototype.slice.call(arguments, 1),
        returnValue = this;

      // allow multiple hashes to be passed on init
      options = !isMethodCall && args.length ?
        $.extend.apply(null, [ true, options ].concat(args)) :
        options;

      // prevent calls to internal methods
      if (isMethodCall && options.charAt(0) === "_") {
        return returnValue;
      }

      if (isMethodCall) {
        this.each(function () {
          var instance = $.data(this, name),
            methodValue = instance && $.isFunction(instance[options]) ?
              instance[ options ].apply(instance, args) :
              instance;
          // TODO: add this back in 1.9 and use $.error() (see #5972)
//				if ( !instance ) {
//					throw "cannot call methods on " + name + " prior to initialization; " +
//						"attempted to call method '" + options + "'";
//				}
//				if ( !$.isFunction( instance[options] ) ) {
//					throw "no such method '" + options + "' for " + name + " widget instance";
//				}
//				var methodValue = instance[ options ].apply( instance, args );
          if (methodValue !== instance && methodValue !== undefined) {
            returnValue = methodValue;
            return false;
          }
        });
      } else {
        this.each(function () {
          var instance = $.data(this, name);
          if (instance) {
            instance.option(options || {})._init();
          } else {
            $.data(this, name, new object(options, this));
          }
        });
      }

      return returnValue;
    };
  };

  $.Widget = function (options, element) {
    // allow instantiation without initializing for simple inheritance
    if (arguments.length) {
      this._createWidget(options, element);
    }
  };

  $.Widget.prototype = {
    widgetName:"widget",
    widgetEventPrefix:"",
    options:{
      disabled:false
    },
    _createWidget:function (options, element) {
      // $.widget.bridge stores the plugin instance, but we do it anyway
      // so that it's stored even before the _create function runs
      $.data(element, this.widgetName, this);
      this.element = $(element);
      this.options = $.extend(true, {},
        this.options,
        this._getCreateOptions(),
        options);

      var self = this;
      this.element.bind("remove." + this.widgetName, function () {
        self.destroy();
      });

      this._create();
      this._trigger("create");
      this._init();
    },
    _getCreateOptions:function () {
      return $.metadata && $.metadata.get(this.element[0])[ this.widgetName ];
    },
    _create:function () {
    },
    _init:function () {
    },

    destroy:function () {
      this.element
        .unbind("." + this.widgetName)
        .removeData(this.widgetName);
      this.widget()
        .unbind("." + this.widgetName)
        .removeAttr("aria-disabled")
        .removeClass(
        this.widgetBaseClass + "-disabled " +
          "ui-state-disabled");
    },

    widget:function () {
      return this.element;
    },

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

      if (arguments.length === 0) {
        // don't return a reference to the internal hash
        return $.extend({}, this.options);
      }

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

      this._setOptions(options);

      return this;
    },
    _setOptions:function (options) {
      var self = this;
      $.each(options, function (key, value) {
        self._setOption(key, value);
      });

      return this;
    },
    _setOption:function (key, value) {
      this.options[ key ] = value;

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

      return this;
    },

    enable:function () {
      return this._setOption("disabled", false);
    },
    disable:function () {
      return this._setOption("disabled", true);
    },

    _trigger:function (type, event, data) {
      var prop, orig,
        callback = this.options[ type ];

      data = data || {};
      event = $.Event(event);
      event.type = ( type === this.widgetEventPrefix ?
        type :
        this.widgetEventPrefix + type ).toLowerCase();
      // the original event may come from any element
      // so we need to reset the target on the new event
      event.target = this.element[ 0 ];

      // copy original event properties over to the new event
      orig = event.originalEvent;
      if (orig) {
        for (prop in orig) {
          if (!( prop in event )) {
            event[ prop ] = orig[ prop ];
          }
        }
      }

      this.element.trigger(event, data);

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

})(jQuery);