contenteditable div: IE8 not happy with backspace remove of HTML element

Question

I am making use of a contenteditable div in combination with the rangy Javascript library to insert HTML at the cursor position.

End of the day the contents of the div c

Answer 1

My suggestion would be to first check the caret is positioned after the non-editable node, and if so, create a range that starts immediately after the non-editable element and ends at the caret position. Check whether the text in this range is empty. If it is, that means the caret is placed directly after the non-editable element, so in that case remove the element. Finally, place the caret where the non-editable had been.

Live demo: http://jsfiddle.net/timdown/vu3ub/

Code:

document.onkeypress = function(e) {
    e = e || window.event;
    var keyCode = e.which || e.keyCode;
    if (keyCode !== 8) {
        return;
    }

    var sel = rangy.getSelection();
    if (sel.rangeCount === 0) {
        return;
    }

    var selRange = sel.getRangeAt(0);
    if (!selRange.collapsed) {
        return;
    }

    var nonEditable = document.getElementById("nonEditable");
    if (!nonEditable) {
        return;
    }

    // Check the caret is located after the non-editable element
    var range = rangy.createRange();
    range.collapseAfter(nonEditable);

    if (selRange.compareBoundaryPoints(range.START_TO_END, range) == -1) {
        return;
    }

    // Check whether there is any text between the caret and the
    // non-editable element. If not, delete the element and move
    // the caret to where it had been
    range.setEnd(selRange.startContainer, selRange.startOffset);
    if (range.toString() === "") {
        selRange.collapseBefore(nonEditable);
        nonEditable.parentNode.removeChild(nonEditable);
        sel.setSingleRange(selRange);

        // Prevent the default browser behaviour
        return false;
    }
};