Facebook's status update input (well, contenteditable div) detects links.
When typing a link it waits until the spacebar is pressed before fetching the URL.
When pasting a link it fetches the URL instantly.
I can already parse the url after the spacebar is pressed...but I'm not sure about detecting when content is pasted.
Any solution would be awesome; a jQuery formatted solution will be BEST!
Check the field at half-second increments. If you detect a large change in the amount of text, it has probably been pasted.
Listen to the keyup event in the field. If the field's content has changed by more than 1 character after one keyup, something has been pasted.
As @epascarello points out, check right click events, too, as the user could be using the context menu.
Compare successive onChange events. If the difference between them is more than one character, it's a paste. Else it's typed in.
<script type="text/javascript">
$(document).ready(function(){
$("#text").keypress (function(e){
var code = (e.keyCode ? e.keyCode : e.which);
if ((code == 86 || code == 118) && e.ctrlKey) //86 = v 118 = V
{
alert("Pasted!");
}
});
});
</script>
</head>
<body>
<textarea id="text">
</textarea>
</body>
</html>
I am actually going to suggest it listens to every keyup because it has multiple uses, if you type @ it will suggest friends, etc.
It probably scans the text and finds links and makes them, well linkable, and then crawls the page so you can post it as "Sharing" the page.