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.将从一个预定义的特定单词集中选择的标签将一次全部删除.普通文本和标签将位于同一个框中.

链接到小提琴链接 到目前为止我已经尝试过

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,但问题是当点击标签时将其添加到文本框中,当我在该标签后面写文本时,这一切都被添加到相同的标签范围内,而Tag + Text全部被删除,而我需要删除文本一次一个字符和标签一次.请建议一个更好的方法来实现这一点与textarea而不是div.

注意:如果我更改跨度中也可编辑的标签数据.还反映在标签和文本的可编辑div中

Answer 1

当标签添加到时div，将其contenteditable属性设置为false：

el.setAttribute('contenteditable', false);

我希望能解决您的问题 - 请参阅下面的演示：

el.setAttribute('contenteditable', false);

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;
}