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1 /* Copyright (c) 2010 | |
2 * @author Laurence Wheway | |
3 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.p
hp) | |
4 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses. | |
5 * | |
6 * @version 1.2.0 | |
7 */ | |
8 (function($) { | |
9 jQuery.extend({ | |
10 isOnScreen: function(box, container) { | |
11 //ensure numbers come in as intgers (not strings) and re
move 'px' is it's there | |
12 for(var i in box){box[i] = parseFloat(box[i])}; | |
13 for(var i in container){container[i] = parseFloat(contai
ner[i])}; | |
14 | |
15 if(!container){ | |
16 container = { | |
17 left: $(window).scrollLeft(), | |
18 top: $(window).scrollTop(), | |
19 width: $(window).width(), | |
20 height: $(window).height() | |
21 } | |
22 } | |
23 | |
24 if( box.left+box.width-container.left > 0 && | |
25 box.left < container.width+container.left && | |
26 box.top+box.height-container.top > 0 && | |
27 box.top < container.height+container.top | |
28 ) return true; | |
29 return false; | |
30 } | |
31 }) | |
32 | |
33 | |
34 jQuery.fn.isOnScreen = function (container) { | |
35 for(var i in container){container[i] = parseFloat(container[i])}
; | |
36 | |
37 if(!container){ | |
38 container = { | |
39 left: $(window).scrollLeft(), | |
40 top: $(window).scrollTop(), | |
41 width: $(window).width(), | |
42 height: $(window).height() | |
43 } | |
44 } | |
45 | |
46 if( $(this).offset().left+$(this).width()-container.left > 0
&& | |
47 $(this).offset().left < container.width+container.left &
& | |
48 $(this).offset().top+$(this).height()-container.top > 0
&& | |
49 $(this).offset().top < container.height+container.top | |
50 ) return true; | |
51 return false; | |
52 } | |
53 })(jQuery); | |
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