define( [

"./core",
"./core/access",
"./var/documentElement",
"./var/isFunction",
"./css/var/rnumnonpx",
"./css/curCSS",
"./css/addGetHookIf",
"./css/support",
"./var/isWindow",
"./core/init",
"./css",
"./selector" // contains

], function( jQuery, access, documentElement, isFunction, rnumnonpx,

curCSS, addGetHookIf, support, isWindow ) {

“use strict”;

jQuery.offset = {

setOffset: function( elem, options, i ) {
        var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
                position = jQuery.css( elem, "position" ),
                curElem = jQuery( elem ),
                props = {};

        // Set position first, in-case top/left are set even on static elem
        if ( position === "static" ) {
                elem.style.position = "relative";
        }

        curOffset = curElem.offset();
        curCSSTop = jQuery.css( elem, "top" );
        curCSSLeft = jQuery.css( elem, "left" );
        calculatePosition = ( position === "absolute" || position === "fixed" ) &&
                ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;

        // Need to be able to calculate position if either
        // top or left is auto and position is either absolute or fixed
        if ( calculatePosition ) {
                curPosition = curElem.position();
                curTop = curPosition.top;
                curLeft = curPosition.left;

        } else {
                curTop = parseFloat( curCSSTop ) || 0;
                curLeft = parseFloat( curCSSLeft ) || 0;
        }

        if ( isFunction( options ) ) {

                // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
                options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
        }

        if ( options.top != null ) {
                props.top = ( options.top - curOffset.top ) + curTop;
        }
        if ( options.left != null ) {
                props.left = ( options.left - curOffset.left ) + curLeft;
        }

        if ( "using" in options ) {
                options.using.call( elem, props );

        } else {
                if ( typeof props.top === "number" ) {
                        props.top += "px";
                }
                if ( typeof props.left === "number" ) {
                        props.left += "px";
                }
                curElem.css( props );
        }
}

};

jQuery.fn.extend( {

// offset() relates an element's border box to the document origin
offset: function( options ) {

        // Preserve chaining for setter
        if ( arguments.length ) {
                return options === undefined ?
                        this :
                        this.each( function( i ) {
                                jQuery.offset.setOffset( this, options, i );
                        } );
        }

        var rect, win,
                elem = this[ 0 ];

        if ( !elem ) {
                return;
        }

        // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
        // Support: IE <=11 only
        // Running getBoundingClientRect on a
        // disconnected node in IE throws an error
        if ( !elem.getClientRects().length ) {
                return { top: 0, left: 0 };
        }

        // Get document-relative position by adding viewport scroll to viewport-relative gBCR
        rect = elem.getBoundingClientRect();
        win = elem.ownerDocument.defaultView;
        return {
                top: rect.top + win.pageYOffset,
                left: rect.left + win.pageXOffset
        };
},

// position() relates an element's margin box to its offset parent's padding box
// This corresponds to the behavior of CSS absolute positioning
position: function() {
        if ( !this[ 0 ] ) {
                return;
        }

        var offsetParent, offset, doc,
                elem = this[ 0 ],
                parentOffset = { top: 0, left: 0 };

        // position:fixed elements are offset from the viewport, which itself always has zero offset
        if ( jQuery.css( elem, "position" ) === "fixed" ) {

                // Assume position:fixed implies availability of getBoundingClientRect
                offset = elem.getBoundingClientRect();

        } else {
                offset = this.offset();

                // Account for the *real* offset parent, which can be the document or its root element
                // when a statically positioned element is identified
                doc = elem.ownerDocument;
                offsetParent = elem.offsetParent || doc.documentElement;
                while ( offsetParent &&
                        ( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
                        jQuery.css( offsetParent, "position" ) === "static" ) {

                        offsetParent = offsetParent.parentNode;
                }
                if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {

                        // Incorporate borders into its offset, since they are outside its content origin
                        parentOffset = jQuery( offsetParent ).offset();
                        parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
                        parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
                }
        }

        // Subtract parent offsets and element margins
        return {
                top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
                left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
        };
},

// This method will return documentElement in the following cases:
// 1) For the element inside the iframe without offsetParent, this method will return
//    documentElement of the parent window
// 2) For the hidden or detached element
// 3) For body or html element, i.e. in case of the html node - it will return itself
//
// but those exceptions were never presented as a real life use-cases
// and might be considered as more preferable results.
//
// This logic, however, is not guaranteed and can change at any point in the future
offsetParent: function() {
        return this.map( function() {
                var offsetParent = this.offsetParent;

                while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
                        offsetParent = offsetParent.offsetParent;
                }

                return offsetParent || documentElement;
        } );
}

} );

// Create scrollLeft and scrollTop methods jQuery.each( { scrollLeft: “pageXOffset”, scrollTop: “pageYOffset” }, function( method, prop ) {

var top = "pageYOffset" === prop;

jQuery.fn[ method ] = function( val ) {
        return access( this, function( elem, method, val ) {

                // Coalesce documents and windows
                var win;
                if ( isWindow( elem ) ) {
                        win = elem;
                } else if ( elem.nodeType === 9 ) {
                        win = elem.defaultView;
                }

                if ( val === undefined ) {
                        return win ? win[ prop ] : elem[ method ];
                }

                if ( win ) {
                        win.scrollTo(
                                !top ? val : win.pageXOffset,
                                top ? val : win.pageYOffset
                        );

                } else {
                        elem[ method ] = val;
                }
        }, method, val, arguments.length );
};

} );

// Support: Safari <=7 - 9.1, Chrome <=37 - 49 // Add the top/left cssHooks using jQuery.fn.position // Webkit bug: bugs.webkit.org/show_bug.cgi?id=29084 // Blink bug: bugs.chromium.org/p/chromium/issues/detail?id=589347 // getComputedStyle returns percent when specified for top/left/bottom/right; // rather than make the css module depend on the offset module, just check for it here jQuery.each( [ “top”, “left” ], function( _i, prop ) {

jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
        function( elem, computed ) {
                if ( computed ) {
                        computed = curCSS( elem, prop );

                        // If curCSS returns percentage, fallback to offset
                        return rnumnonpx.test( computed ) ?
                                jQuery( elem ).position()[ prop ] + "px" :
                                computed;
                }
        }
);

} );

return jQuery; } );