将插入符号位置设置在contenteditable div中的特定位置

Question

SEE BEFORE MARKING DUPLICATE/DOWNVOTING

1. The contenteditable div will not have child elements
2. I do not want to set the position at the end of the div
3. I do not want a cross-browser solution , only Chrome support required
4. Only vanilla JS , no libraries.

I have seen many many solutions. Many by Tim Down, and others. But none does work. I have seen window.getSelection , .addRange etc. but don't see how they apply here.

Here's a jsfiddle .

(Tried) Code:

var node = document.querySelector("div");
node.focus();
var caret = 10; // insert caret after the 10th character say
var range = document.createRange();
range.setStart(node, caret);
range.setEnd(node, caret);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);

Answer 1

You need to position the caret within the text node inside your element, not the element itself. Assuming your HTML looks something like <div contenteditable="true">Some text</div> , using the firstChild property of the element will get the text node.

Updated jsFiddle:

http://jsfiddle.net/xgz6L/8/

Code:

var node = document.querySelector("div");
node.focus();
var textNode = node.firstChild;
var caret = 10; // insert caret after the 10th character say
var range = document.createRange();
range.setStart(textNode, caret);
range.setEnd(textNode, caret);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);