javascript - charcount 插件的 Ckeditor 字符限制

Question

如何防止用户在达到最大字符数限制后输入新字符？

Ckeditor charcount 插件只显示剩余的字符，我希望它在 0 处停止。但它会减去整数。

这是我的 html 代码。

<textarea id="myTextEditor1" name="myTextEditor"></textarea>
<script type="text/javascript">
        CKEDITOR.replace('myTextEditor1', { 
            height: 200, 
            extraPlugins: 'charcount', 
            maxLength: 10, 
            toolbar: 'TinyBare', 
            toolbar_TinyBare: [
                 ['Bold','Italic','Underline'],
                 ['Undo','Redo'],['Cut','Copy','Paste'],
                 ['NumberedList','BulletedList','Table'],['CharCount']
            ] 
        });
</script>

我必须使用onChange 插件 吗？如果必须，我该如何限制用户输入新字符？

Answer 1

我为此使用了 ckeditor jQuery 适配器。

<textarea id="myTextEditor1" name="myTextEditor"></textarea>
<script type="text/javascript">
    $(function () {
        var myEditor = $('#myTextEditor1');
        myEditor.ckeditor({ 
        height: 200, 
        extraPlugins: 'charcount', 
        maxLength: 10, 
        toolbar: 'TinyBare', 
        toolbar_TinyBare: [
             ['Bold','Italic','Underline'],
             ['Undo','Redo'],['Cut','Copy','Paste'],
             ['NumberedList','BulletedList','Table'],['CharCount']
        ] 
        }).ckeditor().editor.on('key', function(obj) {
            if (obj.data.keyCode === 8 || obj.data.keyCode === 46) {
                return true;
            }
            if (myEditor.ckeditor().editor.document.getBody().getText().length >= 10) {
                alert('No more characters possible');
                return false;
            }else { return true; }

        });
    });
</script>

keyCode 检查是为了允许退格和删除按键。要使用 jQuery 适配器，请不要忘记插入它:

<script src="/path-to/ckeditor/adapters/jquery.js"></script>