需要在同一輸入框中添加標籤和普通文本

Question

我需要在同一個輸入框中添加標籤和文本。普通文本可以一次刪除一個字符。將從預先定義的一組特定詞中選擇的標籤將一次全部刪除。正常的文本和標籤將在同一個盒子上。

鏈接擺弄link 到目前爲止，我已經試過

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>

添加標籤，但問題是，當點擊該標籤是將其添加到文本框，當我在該標籤之後寫入文本，將所有內容添加到相同的標籤範圍，並將標籤+文本全部一起刪除，而我需要將文本同時刪除一個字符並將標籤一次全部刪除。請建議一個更好的方式來實現這與textarea而不是div。

注意：如果我更改了也是可編輯的範圍內的標籤數據。在標籤的可編輯的div和文本

Answer 1

當標籤添加到div也反映，其contenteditable屬性設置爲false：

el.setAttribute('contenteditable', false); 

我希望能解決你的問題 - 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>