js2/mwEmbed/jquery/plugins/jquery.dimensions.js

   1 /* Copyright (c) 2007 Paul Bakaus (paul.bakaus@googlemail.com) and Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
   2  * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
   3  * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
   4  *
   5  * $LastChangedDate: 2007-09-10 19:38:31 -0700 (Mon, 10 Sep 2007) $
   6  * $Rev: 3238 $
   7  *
   8  * Version: @VERSION
   9  *
  10  * Requires: jQuery 1.2+
  11  */
  12
  13 (function($){
  14
  15 $.dimensions = {
  16         version: '@VERSION'
  17 };
  18
  19 // Create innerHeight, innerWidth, outerHeight and outerWidth methods
  20 $.each( [ 'Height', 'Width' ], function(i, name){
  21
  22         // innerHeight and innerWidth
  23         $.fn[ 'inner' + name ] = function() {
  24                 if (!this[0]) return;
  25
  26                 var torl = name == 'Height' ? 'Top'     : 'Left',  // top or left
  27                         borr = name == 'Height' ? 'Bottom' : 'Right'; // bottom or right
  28
  29                 return this[ name.toLowerCase() ]() + num(this, 'padding' + torl) + num(this, 'padding' + borr);
  30         };
  31
  32         // outerHeight and outerWidth
  33         $.fn[ 'outer' + name ] = function(options) {
  34                 if (!this[0]) return;
  35
  36                 var torl = name == 'Height' ? 'Top'     : 'Left',  // top or left
  37                         borr = name == 'Height' ? 'Bottom' : 'Right'; // bottom or right
  38
  39                 options = $.extend({ margin: false }, options || {});
  40
  41                 return this[ name.toLowerCase() ]()
  42                                 + num(this, 'border' + torl + 'Width') + num(this, 'border' + borr + 'Width')
  43                                 + num(this, 'padding' + torl) + num(this, 'padding' + borr)
  44                                 + (options.margin ? (num(this, 'margin' + torl) + num(this, 'margin' + borr)) : 0);
  45         };
  46 });
  47
  48 // Create scrollLeft and scrollTop methods
  49 $.each( ['Left', 'Top'], function(i, name) {
  50         $.fn[ 'scroll' + name ] = function(val) {
  51                 if (!this[0]) return;
  52
  53                 return val != undefined ?
  54
  55                         // Set the scroll offset
  56                         this.each(function() {
  57                                 this == window || this == document ?
  58                                         window.scrollTo(
  59                                                 name == 'Left' ? val : $(window)[ 'scrollLeft' ](),
  60                                                 name == 'Top'  ? val : $(window)[ 'scrollTop'  ]()
  61                                         ) :
  62                                         this[ 'scroll' + name ] = val;
  63                         }) :
  64
  65                         // Return the scroll offset
  66                         this[0] == window || this[0] == document ?
  67                                 self[ (name == 'Left' ? 'pageXOffset' : 'pageYOffset') ] ||
  68                                         $.boxModel && document.documentElement[ 'scroll' + name ] ||
  69                                         document.body[ 'scroll' + name ] :
  70                                 this[0][ 'scroll' + name ];
  71         };
  72 });
  73
  74 $.fn.extend({
  75         position: function() {
  76                 var left = 0, top = 0, elem = this[0], offset, parentOffset, offsetParent, results;
  77
  78                 if (elem) {
  79                         // Get *real* offsetParent
  80                         offsetParent = this.offsetParent();
  81
  82                         // Get correct offsets
  83                         offset     = this.offset();
  84                         parentOffset = offsetParent.offset();
  85
  86                         // Subtract element margins
  87                         offset.top  -= num(elem, 'marginTop');
  88                         offset.left -= num(elem, 'marginLeft');
  89
  90                         // Add offsetParent borders
  91                         parentOffset.top  += num(offsetParent, 'borderTopWidth');
  92                         parentOffset.left += num(offsetParent, 'borderLeftWidth');
  93
  94                         // Subtract the two offsets
  95                         results = {
  96                                 top:  offset.top  - parentOffset.top,
  97                                 left: offset.left - parentOffset.left
  98                         };
  99                 }
 100
 101                 return results;
 102         },
 103
 104         offsetParent: function() {
 105                 var offsetParent = this[0].offsetParent;
 106                 while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && $.css(offsetParent, 'position') == 'static') )
 107                         offsetParent = offsetParent.offsetParent;
 108                 return $(offsetParent);
 109         }
 110 });
 111
 112 var num = function(el, prop) {
 113         return parseInt($.css(el.jquery?el[0]:el,prop))||0;
 114 };
 115
 116 })(jQuery);