Hyperdonat

/* Copyright (c) 2007 Paul Bakaus (paul.bakaus@googlemail.com) and Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)

 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)

 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.

 *

 * $LastChangedDate$

 * $Rev$

 *

 * Version: @VERSION

 *

 * Requires: jQuery 1.2+

 */

(function($){

$.dimensions = {

        version: '@VERSION'

};

// Create innerHeight, innerWidth, outerHeight and outerWidth methods

$.each( [ 'Height', 'Width' ], function(i, name){

        // innerHeight and innerWidth

        $.fn[ 'inner' + name ] = function() {

                if (!this[0]) return;

                var torl = name == 'Height' ? 'Top'    : 'Left',  // top or left

                    borr = name == 'Height' ? 'Bottom' : 'Right'; // bottom or right

                return this.is(':visible') ? this[0]['client' + name] : num( this, name.toLowerCase() ) + num(this, 'padding' + torl) + num(this, 'padding' + borr);

        };

        // outerHeight and outerWidth

        $.fn[ 'outer' + name ] = function(options) {

                if (!this[0]) return;

                var torl = name == 'Height' ? 'Top'    : 'Left',  // top or left

                    borr = name == 'Height' ? 'Bottom' : 'Right'; // bottom or right

                options = $.extend({ margin: false }, options || {});

                var val = this.is(':visible') ? 

                                this[0]['offset' + name] : 

                                num( this, name.toLowerCase() )

                                        + num(this, 'border' + torl + 'Width') + num(this, 'border' + borr + 'Width')

                                        + num(this, 'padding' + torl) + num(this, 'padding' + borr);

                return val + (options.margin ? (num(this, 'margin' + torl) + num(this, 'margin' + borr)) : 0);

        };

});

// Create scrollLeft and scrollTop methods

$.each( ['Left', 'Top'], function(i, name) {

        $.fn[ 'scroll' + name ] = function(val) {

                if (!this[0]) return;

                return val != undefined ?

                        // Set the scroll offset

                        this.each(function() {

                                this == window || this == document ?

                                        window.scrollTo( 

                                                name == 'Left' ? val : $(window)[ 'scrollLeft' ](),

                                                name == 'Top'  ? val : $(window)[ 'scrollTop'  ]()

                                        ) :

                                        this[ 'scroll' + name ] = val;

                        }) :

                        // Return the scroll offset

                        this[0] == window || this[0] == document ?

                                self[ (name == 'Left' ? 'pageXOffset' : 'pageYOffset') ] ||

                                        $.boxModel && document.documentElement[ 'scroll' + name ] ||

                                        document.body[ 'scroll' + name ] :

                                this[0][ 'scroll' + name ];

        };

});

$.fn.extend({

        position: function() {

                var left = 0, top = 0, elem = this[0], offset, parentOffset, offsetParent, results;

                if (elem) {

                        // Get *real* offsetParent

                        offsetParent = this.offsetParent();

                        // Get correct offsets

                        offset       = this.offset();

                        parentOffset = offsetParent.offset();

                        // Subtract element margins

                        offset.top  -= num(elem, 'marginTop');

                        offset.left -= num(elem, 'marginLeft');

                        // Add offsetParent borders

                        parentOffset.top  += num(offsetParent, 'borderTopWidth');

                        parentOffset.left += num(offsetParent, 'borderLeftWidth');

                        // Subtract the two offsets

                        results = {

                                top:  offset.top  - parentOffset.top,

                                left: offset.left - parentOffset.left

                        };

                }

                return results;

        },

        offsetParent: function() {

                var offsetParent = this[0].offsetParent;

                while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && $.css(offsetParent, 'position') == 'static') )

                        offsetParent = offsetParent.offsetParent;

                return $(offsetParent);

        }

});

function num(el, prop) {

        return parseInt($.curCSS(el.jquery?el[0]:el,prop,true))||0;

};

})(jQuery);