Try this. Whenever the length of the selection is less than 20 , the function will return the selection.
<script type="text/javascript">
function addLink() {
var body_element = document.getElementsByTagName('body')[0];
var selection;
selection = window.getSelection();
if(selection.toString().length<20)
{
return selection;
}
var pagelink = "<br /><br /> Read more at: <a href=""+document.location.href+"">"+document.location.href+"</a><br />"; // change this if you want
var copytext = selection + pagelink;
var newdiv = document.createElement('div');
newdiv.style.position='absolute';
newdiv.style.left="-99999px";
body_element.appendChild(newdiv);
newdiv.innerHTML = copytext;
selection.selectAllChildren(newdiv);
window.setTimeout(function() {
body_element.removeChild(newdiv);
},0);
}
document.oncopy = addLink;
</script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
</script>
2
solved Javascript Append Link on Copy