jquery-焦点定位追加内容

 

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta content="text/html; charset=utf-8" http-equiv="Content-Type">

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>

<title>contenteditable</title>

<style>

*{

 margin:0;padding:0;

}

.im-message-area{

 width:98%;

 padding:2px;

 height:75px;

 border:#000 solid 1px;

 background:#fff;

 font:12px/20px arial,"5b8b4f53";

 word-wrap:break-word;

 overflow-y:auto;

 line-height:1;

}

.ul{display:none;}

.ul li{

 background-color:#CCC;

 width:50px;

}

</style>

<script language="javascript" type="text/javascript">

function inimage(text){

 var obj= $(".im-message-area")[0];

 var range, node;

 if(!obj.hasfocus) {

  obj.focus();

 }

    if (window.getSelection && window.getSelection().getRangeAt) {

        range = window.getSelection().getRangeAt(0);

  range.collapse(false);

        node = range.createContextualFragment(text);

  var c = node.lastChild;

        range.insertNode(node);

  if(c){

   range.setEndAfter(c);

   range.setStartAfter(c)

  }

  var j = window.getSelection();

  j.removeAllRanges();

  j.addRange(range);

  

    } else if (document.selection && document.selection.createRange) {

        document.selection.createRange().pasteHTML(text);

    }

}

$(document).ready(function(){

 $('#button').click(function(){

  $('.ul').show();

 })

 $('.ul li').each(function(){

  $(this).click(function(){

   inimage($(this).text());

  }) 

 })

});

</script>

</head>

<body>

 <div contenteditable="true" id="im_message_area" class="im-message-area"><br></div>

 <a href="javascript:void(0)" id="button">按钮</a>

 <ul class="ul">

  <li>(笑)</li>

  <li>(哭)</li>

  <li>(乐)</li>

 </ul>

</body>

</html>

 

posted @ 2015-08-13 18:03  243573295  阅读(481)  评论(0)  编辑  收藏  举报