Hi,
I have done a popup which is by default hidden and opened whenever a click is triggered on window. Popup must be shown at wherever the event is triggered.But there
maybe you can load the windowW/H in the init time and out of your function.
The concept is use the mouseY-scrolled high, because the mouseY is related to the body.so use this:
$(document).ready(function(){
$('html').click(function(e){
mouseX=e.pageX;
mouseY=e.pageY;
var bodyTop = document.documentElement.scrollTop + document.body.scrollTop;
..
//window.outerWidth is not working in IE
var windowWidth = $(window).outerWidth();
var windowHeight = $(window).outerHeight();
..
if(mouseY-bodyTop+popupHeight > windowHeight)
...
...
//set the position first. remove the position attr in css
$('div').css({position:"absolute",top:popupTop,left:popupLeft});
$('div').show();
});
});
Finally, I could done it by having small changes...This is the piece of code that works fine...
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"></script>
<style>
div{
border:1px solid;
background:#ff9999;
width:500px;
height:500px;
display:none;
position:absolute;
}
</style>
<script>
var mouseX,mouseY,windowWidth,windowHeight;
var popupLeft,popupTop;
$(document).ready(function(){
$(document).mousemove(function(e){
mouseX = e.pageX;
mouseY = e.pageY;
//To Get the relative position
if( this.offsetLeft !=undefined)
mouseX = e.pageX - this.offsetLeft;
if( this.offsetTop != undefined)
mouseY = e.pageY; - this.offsetTop;
if(mouseX < 0)
mouseX =0;
if(mouseY < 0)
mouseY = 0;
windowWidth = $(window).width()+$(window).scrollLeft();
windowHeight = $(window).height()+$(window).scrollTop();
});
$('html').click(function(){
$('div').show();
var popupWidth = $('div').outerWidth();
var popupHeight = $('div').outerHeight();
if(mouseX+popupWidth > windowWidth)
popupLeft = mouseX-popupWidth;
else
popupLeft = mouseX;
if(mouseY+popupHeight > windowHeight)
popupTop = mouseY-popupHeight;
else
popupTop = mouseY;
if( popupLeft < $(window).scrollLeft()){
popupLeft = $(window).scrollLeft();
}
if( popupTop < $(window).scrollTop()){
popupTop = $(window).scrollTop();
}
if(popupLeft < 0 || popupLeft == undefined)
popupLeft = 0;
if(popupTop < 0 || popupTop == undefined)
popupTop = 0;
$('div').offset({top:popupTop,left:popupLeft});
});
});
</script>
</head>
<body>
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<div>
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</div>
</body>
</html>