My friend gave the following code which is working awesome here http://jsfiddle.net/WVLE2/
I tried the same using a HTML page as below but its not working. I am in learning stage of jQuery. Anybody please help me how to perform chat scrolling in the below script.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<script src="http://code.jquery.com/jquery-1.7.1.min.js" ></script>
<script src="http://code.jquery.com/jquery-1.7.1.js" ></script>
<title>Chat scroll test</title>
<style type="text/css">
#chat
{
width: 200px;
height: 200px;
border: 1px solid black;
overflow-y: auto;
}
</style>
<script>
monitor = function() {
var $this = $(this),
wrap = $this.find('.wrapper'),
height = $this.height(),
maxScroll = wrap.height() - height,
top = $this.scrollTop();
if (maxScroll === top) {
$this.addClass('atBottom');
} else {
$this.removeClass('atBottom');
}
}
window.setInterval(function() {
monitor.call($('#chat').get(0));
}, 350);
$('#chat').bind('addMessage', function(e, message) {
var $this = $(this),
top = $this.scrollTop(),
scroll = $this.hasClass('atBottom');
$this.find('.wrapper').append(message);
if (scroll) {
var wrap = $this.find('.wrapper'),
height = $this.height(),
maxScroll = wrap.height() - height
$this.scrollTop(maxScroll);
}
})
$('button').click(function() {
$('#chat').trigger('addMessage', 'asdgagasdg<br/>');
});
</script>
</head>
<body>
<div id="chat">
<div class="wrapper">
adsgasgda<br/>
adsgasg<br/>
asd<br/>
adsgasgda<br/>
adsgasg<br/>
adsgasgda<br/>
adsgasg<br/>
adsgasgda<br/>
adsgasg<br/>
adsgasgda<br/>
adsgasg<br/>
adsgasgda<br/>
adsgasg<br/>
adsgasgda<br/>
adsgasg<br/>
</div>
</div>
<button>Add a line</button>
</body>
</html>
And this results nothing not even a line adding on button click. The output is just as per HTML but jQuery is not working.
1 Answer