如何防止用户在编辑过程中删除<div contenteditable>编辑器中的<section>（至少按“Delete”/“Backspace”键）？
<html>
<head>
<title>Parcel Sandbox</title>
<meta charset="UTF-8" />
<style>
#editor {
width: 100%;
height: 300px;
border: 1px black solid;
}
#dont-remove-me-please{
width: 100%;
height: 100px;
border: 1px red dashed;
font-weight: bold;
user-select: none;
}
</style>
</head>
<body>
<div id="app"></div>
<div contenteditable="true" id="editor">
<div>hey guys!</div>
<div><strong>more text...</strong></div>
<section id="dont-remove-me-please" contenteditable="false">DONT' REMOVE ME!!!</section>
<div><br></div>
</div>
<script>
document.getElementById('editor').focus()
</script>
</body>
</html>谢谢。
要获得预期的结果，请使用下面的click事件侦听器并根据id添加contenteditable属性
<script>
document.getElementById('editor').addEventListener('click', function(e) {
if(e.target.id !=="dont-remove-me-please"){
e.target.setAttribute("contentEditable", true);
}
}, false);
</script>
代码示例 - https://codesandbox.io/s/rypy7wkn5m
<html>
<head>
<title>Parcel Sandbox</title>
<meta charset="UTF-8" />
<style>
#editor {
width: 100%;
height: 300px;
border: 1px black solid;
}
#dont-remove-me-please{
width: 100%;
height: 100px;
border: 1px red dashed;
font-weight: bold;
user-select: none;
}
</style>
</head>
<body>
<div id="app"></div>
<div id="editor">
<div>hey guys!</div>
<div><strong>more text...</strong></div>
<section id="dont-remove-me-please" contenteditable="false">DONT' REMOVE ME!!!</section>
<div><br></div>
</div>
<script>
document.getElementById('editor').focus()
</script>
<script>
document.getElementById('editor').addEventListener('click', function(e) {
if(e.target.id !=="dont-remove-me-please"){
e.target.setAttribute("contentEditable", true);
}
}, false);
</script>
</body>
</html>