Metacat

/*!

 * jQuery UI Widget 1.8.6

 *

 * Copyright 2010, 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++ ) {

			$( elem ).triggerHandler( "remove" );

		}

		_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() {

						$( this ).triggerHandler( "remove" );

					});

				}

			}

			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 callback = this.options[ type ];

		event = $.Event( event );

		event.type = ( type === this.widgetEventPrefix ?

			type :

			this.widgetEventPrefix + type ).toLowerCase();

		data = data || {};

		// 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() );

	}

};

})( jQuery );