hubzilla_ynh/sources/view/tpl/notes.tpl

<div class="widget">
	<h3>{{$banner}}</h3>
	<textarea name="note_text" id="note-text">{{$text}}</textarea>
	<script>
		var noteSaveTimer = null;
		var noteText = $('#note-text');

		noteText.on('change keyup keydown paste cut', function () {
			$(this).height(0).height(this.scrollHeight);
			$(document.body).trigger("sticky_kit:recalc");
		}).change();

		$(document).on('focusout',"#note-text",function(e){
			if(noteSaveTimer)
				clearTimeout(noteSaveTimer);
			notePostFinal();
			noteSaveTimer = null;
		});

		$(document).on('focusin',"#note-text",function(e){
			noteSaveTimer = setTimeout(noteSaveChanges,10000);
		});

		function notePostFinal() {
			$.post('notes/sync', { 'note_text' : $('#note-text').val() });
		}

		function noteSaveChanges() {
			$.post('notes', { 'note_text' : $('#note-text').val() });
			noteSaveTimer = setTimeout(noteSaveChanges,10000);
		}
	</script>
</div>