contenteditable - add a class to a current div-CodePudding

currentDiv is the div having the caret inside
on a button click I need to add a class
problem - how to get which div is the current ?

$('button').on('click', function(){
$(currentDiv).addClass('indent');
});

.indent{margin-left:30px;}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div contenteditable>
<div>lorem</div>
<div>ipsum</div>
<div>dolor</div>
</div>

<button>CLICK</button>

CodePudding user response：

You can use Range and the startContainer property to get the element pointed to by the cursor:

const contenteditable = $('[contenteditable]');
$('button').on('click', function(e) {
  var sel = window.getSelection();
  var range = sel.getRangeAt(0);
  var elem = range.startContainer.parentNode;
  $(elem).addClass('indent');
});

.indent {
  margin-left: 30px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div contenteditable>
  <div>lorem</div>
  <div>ipsum</div>
  <div>dolor</div>
</div>

<button>CLICK</button>