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✏️ Editing: jquery.actual.js

/*! Copyright 2012, Ben Lin (http://dreamerslab.com/)
 * Licensed under the MIT License (LICENSE.txt).
 *
 * Version: 1.0.16
 *
 * Requires: jQuery >= 1.2.3
 */
;( function ( $ ){
  $.fn.addBack = $.fn.addBack || $.fn.andSelf;

$.fn.extend({

actual : function ( method, options ){
      // check if the jQuery method exist
      if( !this[ method ]){
        throw '$.actual => The jQuery method "' + method + '" you called does not exist';
      }

var defaults = {
        absolute      : false,
        clone         : false,
        includeMargin : false
      };

var configs = $.extend( defaults, options );

var $target = this.eq( 0 );
      var fix, restore;

if( configs.clone === true ){
        fix = function (){
          var style = 'position: absolute !important; top: -1000 !important; ';

// this is useful with css3pie
          $target = $target.
            clone().
            attr( 'style', style ).
            appendTo( 'body' );
        };

restore = function (){
          // remove DOM element after getting the width
          $target.remove();
        };
      }else{
        var tmp   = [];
        var style = '';
        var $hidden;

fix = function (){
          // get all hidden parents
          $hidden = $target.parents().addBack().filter( ':hidden' );
          style   += 'visibility: hidden !important; display: block !important; ';

if( configs.absolute === true ) style += 'position: absolute !important; ';

// save the origin style props
          // set the hidden el css to be got the actual value later
          $hidden.each( function (){
            // Save original style. If no style was set, attr() returns undefined
            var $this     = $( this );
            var thisStyle = $this.attr( 'style' );

tmp.push( thisStyle );
            // Retain as much of the original style as possible, if there is one
            $this.attr( 'style', thisStyle ? thisStyle + ';' + style : style );
          });
        };

restore = function (){
          // restore origin style values
          $hidden.each( function ( i ){
            var $this = $( this );
            var _tmp  = tmp[ i ];

if( _tmp === undefined ){
              $this.removeAttr( 'style' );
            }else{
              $this.attr( 'style', _tmp );
            }
          });
        };
      }

fix();
      // get the actual value with user specific methed
      // it can be 'width', 'height', 'outerWidth', 'innerWidth'... etc
      // configs.includeMargin only works for 'outerWidth' and 'outerHeight'
      var actual = /(outer)/.test( method ) ?
        $target[ method ]( configs.includeMargin ) :
        $target[ method ]();

restore();
      // IMPORTANT, this plugin only return the value of the first element
      return actual;
    }
  });
})( jQuery );

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