需要在同一输入框中添加标签和普通文本

Question

我需要在同一个输入框中添加标签和文本。普通文本可以一次删除一个字符。将从预先定义的一组特定词中选择的标签将一次全部删除。正常的文本和标签将在同一个盒子上。

链接摆弄link 到目前为止，我已经试过

document.querySelector('.selectable-icons').addEventListener('click', function(e) { 
 
    
 
    document.querySelector('[contenteditable]').appendChild(e.target.cloneNode(true)); 
 
    
 
}); 
 

 

 
document.querySelector('div').addEventListener('keydown', function(event) { 
 
    // Check for a backspace 
 
    if (event.which == 8) { 
 
     s = window.getSelection(); 
 
     r = s.getRangeAt(0) 
 
     el = r.startContainer.parentElement 
 
     // Check if the current element is the .label 
 
     if (el.classList.contains('label')) { 
 
      // Check if we are exactly at the end of the .label element 
 
      if (r.startOffset == r.endOffset && r.endOffset == el.textContent.length) { 
 
       // prevent the default delete behavior 
 
       event.preventDefault(); 
 
       if (el.classList.contains('highlight')) { 
 
        // remove the element 
 
        el.remove(); 
 
       } else { 
 
        el.classList.add('highlight'); 
 
       } 
 
       return; 
 
      } 
 
     } 
 
    } 
 
    event.target.querySelectorAll('span.label.highlight').forEach(function(el) { el.classList.remove('highlight');}) 
 
});

[contenteditable] { 
 
    border: 1px solid #000; 
 
    margin: 0.4em 0; 
 
    line-height: 1.4em; 
 
    -webkit-appearance: textfield; 
 
    appearance: textfield; 
 
} 
 
img { 
 
    vertical-align: top; 
 
    max-height: 1.4em; 
 
    max-width: 1.4em; 
 
} 
 
.selectable-icons img { 
 
    cursor: pointer; 
 
} 
 

 
span.label.highlight { 
 
    background: #E1ECF4; 
 
    border: 1px dotted #39739d; 
 
} 
 

 
span.label { 
 
    background: #E1ECF4; 
 
    border: 1px dotted #39739d; 
 
}

<p>Just click on an icon to add it.</p> 
 

 
<div class="custom-input"> 
 
    <div class="selectable-icons"> 
 
     <span class="label"> Tag </span> 
 
     <span class="label"> Tag 2 </span> 
 
     <span class="label">Tag 3</span> 
 
    </div> 
 
    <div contenteditable="true"> 
 
    You can type here. Add an icon. 
 
    </div> 
 
</div>

添加标签，但问题是，当点击该标签是将其添加到文本框，当我在该标签之后写入文本，将所有内容添加到相同的标签范围，并将标签+文本全部一起删除，而我需要将文本同时删除一个字符并将标签一次全部删除。请建议一个更好的方式来实现这与textarea而不是div。

注意：如果我更改了也是可编辑的范围内的标签数据。在标签的可编辑的div和文本

Answer 1

当标签添加到div也反映，其contenteditable属性设置为false：

el.setAttribute('contenteditable', false); 

我希望能解决你的问题 - 看演示如下：

document.querySelector('.selectable-icons').addEventListener('click', function(e) { 
 
    var el = e.target.cloneNode(true); 
 
    el.setAttribute('contenteditable', false); 
 
    document.querySelector('[contenteditable]').appendChild(el); 
 

 
}); 
 

 

 
document.querySelector('div').addEventListener('keydown', function(event) { 
 
    // Check for a backspace 
 
    if (event.which == 8) { 
 
    s = window.getSelection(); 
 
    r = s.getRangeAt(0) 
 
    el = r.startContainer.parentElement 
 
    // Check if the current element is the .label 
 
    if (el.classList.contains('label')) { 
 
     // Check if we are exactly at the end of the .label element 
 
     if (r.startOffset == r.endOffset && r.endOffset == el.textContent.length) { 
 
     // prevent the default delete behavior 
 
     event.preventDefault(); 
 
     if (el.classList.contains('highlight')) { 
 
      // remove the element 
 
      el.remove(); 
 
     } else { 
 
      el.classList.add('highlight'); 
 
     } 
 
     return; 
 
     } 
 
    } 
 
    } 
 
    event.target.querySelectorAll('span.label.highlight').forEach(function(el) { 
 
    el.classList.remove('highlight'); 
 
    }) 
 
});

[contenteditable] { 
 
    border: 1px solid #000; 
 
    margin: 0.4em 0; 
 
    line-height: 1.4em; 
 
    -webkit-appearance: textfield; 
 
    appearance: textfield; 
 
} 
 

 
img { 
 
    vertical-align: top; 
 
    max-height: 1.4em; 
 
    max-width: 1.4em; 
 
} 
 

 
.selectable-icons img { 
 
    cursor: pointer; 
 
} 
 

 
span.label.highlight { 
 
    background: #E1ECF4; 
 
    border: 1px dotted #39739d; 
 
} 
 

 
span.label { 
 
    background: #E1ECF4; 
 
    border: 1px dotted #39739d; 
 
}

<p>Just click on an icon to add it.</p> 
 

 
<div class="custom-input"> 
 
    <div class="selectable-icons"> 
 
    <span class="label"> Tag </span> 
 
    <span class="label"> Tag 2 </span> 
 
    <span class="label">Tag 3</span> 
 
    </div> 
 
    <div contenteditable="true"> 
 
    You can type here. Add an icon. 
 
    </div> 
 
</div>