/*!
 * jQuery UI Core @VERSION
 * http://jqueryui.com
 *
 * Copyright 2014 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/category/ui-core/
 */
(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define( [ "jquery" ], factory );
    } else {

        // Browser globals
        factory( jQuery );
    }
}(function( $ ) {

// $.ui might exist from components with no dependencies, e.g., $.ui.position
    $.ui = $.ui || {};

    $.extend( $.ui, {
        version: "@VERSION",

        keyCode: {
            BACKSPACE: 8,
            COMMA: 188,
            DELETE: 46,
            DOWN: 40,
            END: 35,
            ENTER: 13,
            ESCAPE: 27,
            HOME: 36,
            LEFT: 37,
            PAGE_DOWN: 34,
            PAGE_UP: 33,
            PERIOD: 190,
            RIGHT: 39,
            SPACE: 32,
            TAB: 9,
            UP: 38
        }
    });

// plugins
    $.fn.extend({
        scrollParent: function() {
            var position = this.css( "position" ),
                excludeStaticParent = position === "absolute",
                scrollParent = this.parents().filter( function() {
                    var parent = $( this );
                    if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
                        return false;
                    }
                    return (/(auto|scroll)/).test( parent.css( "overflow" ) + parent.css( "overflow-y" ) + parent.css( "overflow-x" ) );
                }).eq( 0 );

            return position === "fixed" || !scrollParent.length ? $( this[ 0 ].ownerDocument || document ) : scrollParent;
        },

        uniqueId: (function() {
            var uuid = 0;

            return function() {
                return this.each(function() {
                    if ( !this.id ) {
                        this.id = "ui-id-" + ( ++uuid );
                    }
                });
            };
        })(),

        removeUniqueId: function() {
            return this.each(function() {
                if ( /^ui-id-\d+$/.test( this.id ) ) {
                    $( this ).removeAttr( "id" );
                }
            });
        }
    });

// selectors
    function focusable( element, isTabIndexNotNaN ) {
        var map, mapName, img,
            nodeName = element.nodeName.toLowerCase();
        if ( "area" === nodeName ) {
            map = element.parentNode;
            mapName = map.name;
            if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
                return false;
            }
            img = $( "img[usemap='#" + mapName + "']" )[ 0 ];
            return !!img && visible( img );
        }
        return ( /input|select|textarea|button|object/.test( nodeName ) ?
            !element.disabled :
            "a" === nodeName ?
            element.href || isTabIndexNotNaN :
                isTabIndexNotNaN) &&
            // the element and all of its ancestors must be visible
        visible( element );
    }

    function visible( element ) {
        return $.expr.filters.visible( element ) &&
        !$( element ).parents().addBack().filter(function() {
            return $.css( this, "visibility" ) === "hidden";
        }).length;
    }

    $.extend( $.expr[ ":" ], {
        data: $.expr.createPseudo ?
            $.expr.createPseudo(function( dataName ) {
                return function( elem ) {
                    return !!$.data( elem, dataName );
                };
            }) :
            // support: jQuery <1.8
            function( elem, i, match ) {
                return !!$.data( elem, match[ 3 ] );
            },

        focusable: function( element ) {
            return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
        },

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

// support: jQuery <1.8
    if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
        $.each( [ "Width", "Height" ], function( i, name ) {
            var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
                type = name.toLowerCase(),
                orig = {
                    innerWidth: $.fn.innerWidth,
                    innerHeight: $.fn.innerHeight,
                    outerWidth: $.fn.outerWidth,
                    outerHeight: $.fn.outerHeight
                };

            function reduce( elem, size, border, margin ) {
                $.each( side, function() {
                    size -= parseFloat( $.css( elem, "padding" + this ) ) || 0;
                    if ( border ) {
                        size -= parseFloat( $.css( elem, "border" + this + "Width" ) ) || 0;
                    }
                    if ( margin ) {
                        size -= parseFloat( $.css( elem, "margin" + this ) ) || 0;
                    }
                });
                return size;
            }

            $.fn[ "inner" + name ] = function( size ) {
                if ( size === undefined ) {
                    return orig[ "inner" + name ].call( this );
                }

                return this.each(function() {
                    $( this ).css( type, reduce( this, size ) + "px" );
                });
            };

            $.fn[ "outer" + name] = function( size, margin ) {
                if ( typeof size !== "number" ) {
                    return orig[ "outer" + name ].call( this, size );
                }

                return this.each(function() {
                    $( this).css( type, reduce( this, size, true, margin ) + "px" );
                });
            };
        });
    }

// support: jQuery <1.8
    if ( !$.fn.addBack ) {
        $.fn.addBack = function( selector ) {
            return this.add( selector == null ?
                    this.prevObject : this.prevObject.filter( selector )
            );
        };
    }

// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
    if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
        $.fn.removeData = (function( removeData ) {
            return function( key ) {
                if ( arguments.length ) {
                    return removeData.call( this, $.camelCase( key ) );
                } else {
                    return removeData.call( this );
                }
            };
        })( $.fn.removeData );
    }

// deprecated
    $.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );

    $.fn.extend({
        focus: (function( orig ) {
            return function( delay, fn ) {
                return typeof delay === "number" ?
                    this.each(function() {
                        var elem = this;
                        setTimeout(function() {
                            $( elem ).focus();
                            if ( fn ) {
                                fn.call( elem );
                            }
                        }, delay );
                    }) :
                    orig.apply( this, arguments );
            };
        })( $.fn.focus ),

        disableSelection: (function() {
            var eventType = "onselectstart" in document.createElement( "div" ) ?
                "selectstart" :
                "mousedown";

            return function() {
                return this.bind( eventType + ".ui-disableSelection", function( event ) {
                    event.preventDefault();
                });
            };
        })(),

        enableSelection: function() {
            return this.unbind( ".ui-disableSelection" );
        },

        zIndex: function( zIndex ) {
            if ( zIndex !== undefined ) {
                return this.css( "zIndex", zIndex );
            }

            if ( this.length ) {
                var elem = $( this[ 0 ] ), position, value;
                while ( elem.length && elem[ 0 ] !== document ) {
                    // Ignore z-index if position is set to a value where z-index is ignored by the browser
                    // This makes behavior of this function consistent across browsers
                    // WebKit always returns auto if the element is positioned
                    position = elem.css( "position" );
                    if ( position === "absolute" || position === "relative" || position === "fixed" ) {
                        // IE returns 0 when zIndex is not specified
                        // other browsers return a string
                        // we ignore the case of nested elements with an explicit value of 0
                        // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
                        value = parseInt( elem.css( "zIndex" ), 10 );
                        if ( !isNaN( value ) && value !== 0 ) {
                            return value;
                        }
                    }
                    elem = elem.parent();
                }
            }

            return 0;
        }
    });

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

            if ( !set ) {
                return;
            }

            if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
                return;
            }

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

}));