[英]count characters of textarea in aloha editor
我的html代码是这样的:
<div class="control-group">
<label class="control-label">Message Body
<p class="showlimit"><!-- this shows character limit for the message -->
<span id="charsLeft"></span>/<span id="charsLimit"></span>
</p>
</label>
<div class="controls">
<textarea rows="7" id="msg" name="msg" class="field span5"></textarea>
</div>
</div>
我的jQuery代码是这样的:
$('#charsLimit').text(1200);
$('#msg').limit($('#charsLimit').text(),'#charsLeft');
like this: 我想显示id charsLeft中剩余的字符数(即1200个字符)(即charsLimit的值),在正常情况下可以正常工作,但是在使用Aloha编辑器进行的丰富编辑级别上,它不能正常工作,因为它将textarea替换为是这样的:
<!-- rest of the above code is same -->
<div class="controls">
<textarea id="msg" class="field span5" name="msg" rows="7"
style="display: none;"><!-- observe the style displaying none -->
</textarea>
<!--
msg replaced with msg-aloha hence not able to perform normal jquery on msg
-->
<div id="msg-aloha" class="aloha-textarea aloha-editable
aloha-block-blocklevel-sortable ui-sortable"
contenteditable="true" style="height: 140px; width: 456px;">
<br class="aloha-cleanme" style="">
</div>
</div>
我不知道该怎么办...
尝试
$('#charsLimit').text(1200);
$('#msg-aloha').keyup(function(e){ $('#charsLeft').text($('#charsLimit').text() -check_charcount(e)); });
function check_charcount(e)
{
var char_count = $('#msg-aloha').text().length;
if(e.which != 8 && char_count >= $('#charsLimit').text())
{
e.preventDefault();
}
return char_count;
}
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