js 复制粘贴文章时添加版权信息

<script>
       function setClipboardText(event){
        event.preventDefault();
        var node = document.createElement('div');      
        node.appendChild(window.getSelection().getRangeAt(0).cloneContents());       
        var htmlData = '<div>'
            + node.innerHTML           
            + '<br /><br />---------------------------------------------------------------------<br />'
            + '本文由 Savalone 原创或搜集整理发表，转载请遵守 CC BY-NC-ND 4.0 许可！<br />'
            + '作者：{content:author}<br />'
            + '链接：{pboot:pageurl}<br />'          
            + '</div>';
        var textData = window.getSelection().getRangeAt(0)
            + '\n\n----------------------------------------------------------------------\n'
            + '本文由 Savalone 原创或搜集整理发表，转载请遵守 CC BY-NC-ND 4.0 许可！\n'
            + '作者：{content:author}\n'
            + '链接：{pboot:pageurl}\n';
        if(event.clipboardData){
            event.clipboardData.setData("text/html", htmlData);          
            event.clipboardData.setData("text/plain",textData);
        }
        else if(window.clipboardData){ 
            return window.clipboardData.setData("text", textData);
        }
    };
 
    document.addEventListener('copy',function(e){
        setClipboardText(e);
    });
    
</script>