Remove formatting from a contentEditable div

2019-02-02 11:09发布

站内文章 / JavaScript
27 0 0

问题:

I have a contentEditable Div and I want remove any formatting especially for copy and paste text.

回答1:

Have you tried using innerText?

ADDED:

If you want to strip markup from content pasted into the editable div, try the old hack of creating a temporary div -- see example below.

<!DOCTYPE html>
<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 

<title>Strip editable div markup</title>

<script type="text/javascript">
function strip(html) {
    var tempDiv = document.createElement("DIV");
    tempDiv.innerHTML = html;
    return tempDiv.innerText;
}

</script>
</head>

<body>

<div id="editableDiv" contentEditable="true"></div>

<input type="button" value="press" onclick="alert(strip(document.getElementById('editableDiv').innerText));" />

</body>

</html>


回答2:

document.querySelector('div[contenteditable="true"]').addEventListener("paste", function(e) {
        e.preventDefault();
        var text = e.clipboardData.getData("text/plain");
        document.execCommand("insertHTML", false, text);
    });

It is simple: add a listener to the "paste" event and reeformat clipboard contents.

Here another example for all containers in the body:

[].forEach.call(document.querySelectorAll('div[contenteditable="true"]'), function (el) {
    el.addEventListener('paste', function(e) {
        e.preventDefault();
        var text = e.clipboardData.getData("text/plain");
        document.execCommand("insertHTML", false, text);
    }, false);
});

Saludos.



回答3:

Was looking for answer to this for ages and ended up writing my own.

I hope this helps others. At the time of writing this it appears to work in ie9, latest chrome and firefox. 

<div contenteditable="true" onpaste="OnPaste_StripFormatting(this, event);" />

<script type="text/javascript">

                var _onPaste_StripFormatting_IEPaste = false;

                function OnPaste_StripFormatting(elem, e) {

                    if (e.originalEvent && e.originalEvent.clipboardData && e.originalEvent.clipboardData.getData) {
                        e.preventDefault();
                        var text = e.originalEvent.clipboardData.getData('text/plain');
                        window.document.execCommand('insertText', false, text);
                    }
                    else if (e.clipboardData && e.clipboardData.getData) {
                        e.preventDefault();
                        var text = e.clipboardData.getData('text/plain');
                        window.document.execCommand('insertText', false, text);
                    }
                    else if (window.clipboardData && window.clipboardData.getData) {
                        // Stop stack overflow
                        if (!_onPaste_StripFormatting_IEPaste) {
                            _onPaste_StripFormatting_IEPaste = true;
                            e.preventDefault();
                            window.document.execCommand('ms-pasteTextOnly', false);
                        }
                        _onPaste_StripFormatting_IEPaste = false;
                    }

                }

    </script>


回答4:

With Jquery you can use .text() method, so, when blur for example you can replace the content with the text content

$("#element").blur(function(e) {
    $(this).html($(this).text());
});


回答5:

I know it's been a while, but I had the same problem. On my case, it's a GWT application to make it even worse. Anyway, resolved the problem with:

var clearText = event.clipboardData.getData('text/plain');
document.execCommand('inserttext', false, clearText);

See: https://jsfiddle.net/erikwoods/Ee3yC/

I preffered "inserttext" command instead of "insertHTML", because the documentation says it's exactly to insert plain text, so seems more suitable. See https://developer.mozilla.org/en-US/docs/Web/API/Document/execCommand



回答6:

You can't access the system clipboard so you'll need a hack. See this question: JavaScript get clipboard data on paste event (Cross browser)



回答7:

I'd like to add my solution to this issue:

ContentEditableElement.addEventListener('input', function(ev) {
  if(ev.target.innerHTML != ev.target.textContent) {

    // determine position of the text caret
    var caretPos = 0,
      sel, range;
    sel = window.getSelection();
    if (sel.rangeCount) {
      range = sel.getRangeAt(0);
      var children = ev.target.childNodes;
      var keepLooping = true;
      for(let i = 0; keepLooping; i++) {
        if(children[i] == range.commonAncestorContainer || children[i] == range.commonAncestorContainer.parentNode) {
          caretPos += range.endOffset;
          keepLooping = false;
        } else {
          caretPos += children[i].textContent.length;
        }
      }

      // set the element's innerHTML to its textContent
      ev.target.innerHTML = ev.target.textContent;

      // put the caret where it was before
      range = document.createRange();
      range.setStart(ev.target.childNodes[0], caretPos);
      range.collapse(true);
      sel.removeAllRanges();
      sel.addRange(range);
    }
  }
});

(this isn't compatible with older versions of IE)



回答8:

<p spellcheck="false" contentEditable onkeydown="return false">text</p>



标签： javascript jquery html formatting contenteditable
举报

收藏的人(0)

Ta的文章 更多文章
登录 后发表评论
0条评论
还没有人评论过~