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I'm trying to get an element to animate to its "natural" height - i.e. the height it would be if it had height: auto;.
I've come up with this:
var currentHeight = $this.height();
$this.css('height', 'auto');
var height = $this.height();
$this.css('height', currentHeight + 'px');
$this.animate({'height': height});
Is there a better way to do this? It feels like a bit of a hack.
Edit: Here's a complete script to play with for anyone that wants to test.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>jQuery</title>
<style type="text/css">
p { overflow: hidden; background-color: red; border: 1px solid black; }
.closed { height: 1px; }
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js"></script>
<script type="text/javascript">
$().ready(function()
{
$('div').click(function()
{
$('p').each(function()
{
var $this = $(this);
if ($this.hasClass('closed'))
{
var currentHeight = $this.height();
$this.css('height', 'auto');
var height = $this.height();
$this.css('height', currentHeight + 'px');
$this.animate({'height': height});
}
else
{
$this.animate({'height': 1});
}
$this.toggleClass('closed');
});
});
});
</script>
</head>
<body>
<div>Click Me</div>
<p>Hello - I started open</p>
<p class="closed">Hello - I started closed</p>
</body>
</html>
719
jQuery height() Method The height() method sets or returns the height of the selected elements.
The jQuery animate() method is used to create custom animations. Syntax: $(selector).
click(function() { $( "#box" ). animate({ width: "300px", height: "300px", }, 1500 ); }); $( "#btn2" ). click(function() { $( "#box" ). animate({ width: "100px", height: "100px", }, 1500 ); });
I permit myself to answer this thread, even if it's been answered a long time ago, cuz it just helped me.
In fact, i don't understand the first answer : why opening a half-closed element to get its height, and then closing it again ?
At the beginning, you hide the element so that just a part of it appears, right ? The best way (i believe) to do this is onready, with javascript. So, when you hide the element onready, just save the orig height in a var, so you don't have to hide(onready)-show-save height-hide to be able to toggle the elements visibility.
Look at what i did, it works perfectly :
$(document).ready(function(){
var origHeight = $("#foo").css('height');
$("#foo").css({"height" : "80px"});
$("#foo .toggle").bind("click", function(event){ toggleFoo(event, lastSearchesMidHeight); });
});
Here, when you call your toggle function, you know what is your original element height without wanking around.
I wrote it fast, hoping it could help someone in the future.
107
the easiest solution I found was to simply wrap the content element with a div that is limited in height and set to overflow:hidden. This truncates the inner content element to the height of the wrapping div. when the user clicks, hovers, etc. to show the full height of the content element - simply animate the wrapping div to the height of the inner content div.
40
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