<button type="button" onclick="document.getElementById('test').focus(); insertHtmlAtCaret('<b>INSERTED</b>');">插入字符</button>
<div contentEditable="true" style="height:50px; border:2px solid red;" id="test"> </div>
function insertHtmlAtCaret(html) {
var sel, range;
if (window.getSelection) {
// IE9 and non-IE
sel = window.getSelection();
if (sel.getRangeAt && sel.rangeCount) {
range = sel.getRangeAt(0);
range.deleteContents();
// Range.createContextualFragment() would be useful here but is
// non-standard and not supported in all browsers (IE9, for one)
var el = document.createElement("div");
el.innerHTML = html;
var frag = document.createDocumentFragment(), node, lastNode;
while ( (node = el.firstChild) ) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag);
// Preserve the selection
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
} else if (document.selection && document.selection.type != "Control") {
// IE < 9
document.selection.createRange().pasteHTML(html);
}
}
<!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>
