javascript - Add tags around selected text in an element

Question

How can I add <span> tags around selected text within an element?

For example, if somebody highlights "John", I would like to add span tags around it.

HTML

<p>My name is Jimmy John, and I hate sandwiches. My name is still Jimmy John.</p>

JS

function getSelectedText() {
  t = (document.all) ? document.selection.createRange().text : document.getSelection();

  return t;
}

$('p').mouseup(function(){
    var selection = getSelectedText();
    var selection_text = selection.toString();
    console.log(selection);
    console.log(selection_text);

    // How do I add a span around the selected text?
});

http://jsfiddle.net/2w35p/

There is a identical question here: jQuery select text and add span to it in an paragraph, but it uses outdated jquery methods (e.g. live), and the accepted answer has a bug.

Answer 1

I have a solution. Get the Range of the selecion and deleteContent of it, then insert a new span in it .

$('body').mouseup(function(){
    var selection = getSelectedText();
    var selection_text = selection.toString();

    // How do I add a span around the selected text?

    var span = document.createElement('SPAN');
    span.textContent = selection_text;

    var range = selection.getRangeAt(0);
    range.deleteContents();
    range.insertNode(span);
});

You can see the DEMO here

UPDATE

Absolutly, the selection will be delete at the same time. So you can add the selection range with js code if you want.