Set caret position right after the inserted element in a contentEditable div

The following function will do it. DOM Level 2 Range objects make this easy in most browsers. In IE, you need to insert a marker element after the node you're inserting, move the selection to it and then remove it.

Live example: http://jsfiddle.net/timdown/4N4ZD/

Code:

function insertNodeAtCaret(node) {
    if (typeof window.getSelection != "undefined") {
        var sel = window.getSelection();
        if (sel.rangeCount) {
            var range = sel.getRangeAt(0);
            range.collapse(false);
            range.insertNode(node);
            range = range.cloneRange();
            range.selectNodeContents(node);
            range.collapse(false);
            sel.removeAllRanges();
            sel.addRange(range);
        }
    } else if (typeof document.selection != "undefined" && document.selection.type != "Control") {
        var html = (node.nodeType == 1) ? node.outerHTML : node.data;
        var id = "marker_" + ("" + Math.random()).slice(2);
        html += '<span id="' + id + '"></span>';
        var textRange = document.selection.createRange();
        textRange.collapse(false);
        textRange.pasteHTML(html);
        var markerSpan = document.getElementById(id);
        textRange.moveToElementText(markerSpan);
        textRange.select();
        markerSpan.parentNode.removeChild(markerSpan);
    }
}

Alternatively, you could use my Rangy library. The equivalent code there would be

function insertNodeAtCaret(node) {
    var sel = rangy.getSelection();
    if (sel.rangeCount) {
        var range = sel.getRangeAt(0);
        range.collapse(false);
        range.insertNode(node);
        range.collapseAfter(node);
        sel.setSingleRange(range);
    }
}

If you're inserting an empty div, p or span, I believe there needs to be "something" inside the newly created element for the range to grab onto -- and in order to put the caret inside there.

Here's my hack that seems to work OK in Chrome. The idea is simply to put a temporary string inside the element, then remove it once the caret is in there.

// Get the selection and range
var idoc = document; // (In my case it's an iframe document)
var sel = idoc.getSelection();
var range = sel.getRangeAt(0);

// Create a node to insert
var p = idoc.createElement("p"); // Could be a div, span or whatever

// Add "something" to the node.
var temp = idoc.createTextNode("anything");
p.appendChild(temp);
// -- or --
//p.innerHTML = "anything";

// Do the magic (what rangy showed above)
range.collapse(false);
range.insertNode( p );
range = range.cloneRange();
range.selectNodeContents(p);
range.collapse(false);
sel.removeAllRanges();
sel.addRange(range);

// Clear the non
p.removeChild(p.firstChild);
// -- or --
//p.innerHTML = "";