当我使用HTML5`contenteditable`时,空格键在“button”元素中“无效”。我怎样才能让它运转起来?

问题描述 投票:2回答:4

当我使用HTML5 button时,空格键在contenteditable元素中不起作用。但它在div元素的完美工作。我怎样才能让它运转起来?有人能帮我吗?

请在这里查看:https://jsfiddle.net/Issact/f6jc5th4/

HTML:

<div contenteditable="true">
This is editable and the spacebar does work in "Div" for the white-space
</div>
<button contenteditable="true">
This is editable and the spacebar does not work in "button" for the white-space
</button>

CSS:

div {
  background-color:black;
  padding:20px;
  color:#fff;
}
button {
  background-color:green;
  padding:20px;
  color:#fff;
}
javascript jquery css html5
4个回答
1
投票

用这个

<button 
    contenteditable="true" 
    onclick="if (!event.x && !event.y && !event.clientX && !event.clientY) {event.preventDefault(); insertHtmlAtCursor('&nbsp;');} else { }"> This is editable and the spacebar does not work in "button" for the white-space </button>

<script type="text/javascript">
function insertHtmlAtCursor(html) {
    var range, node;
    if (window.getSelection && window.getSelection().getRangeAt) {
        range = window.getSelection().getRangeAt(0);
        node = range.createContextualFragment(html);
        range.insertNode(node);
        window.getSelection().collapseToEnd();
        window.getSelection().modify('move', 'forward', 'character');
    } else if (document.selection && document.selection.createRange) {
        document.selection.createRange().pasteHTML(html);
        document.selection.collapseToEnd();
        document.selection.modify('move', 'forward', 'character');
    }
}
</script>

在这里添加了现场演示https://jsfiddle.net/jalayoza/f6jc5th4/3/

希望这可以帮助


1
投票

将文本包装在按钮标记内,并使用跨度使其成为可信的范围

HTML

<div contenteditable="true">
This is editable and the spacebar does work in "Div" for the white-space
</div>
<button >
<span contenteditable="true">
This is editable and the spacebar does not work in "button" for the white-space
</span>
</button>

CSS

div {
  background-color:black;
  padding:20px;
  color:#fff;
}
button {
  background-color:green;
  padding:20px;
  color:#fff;
}

希望这有效


0
投票

您需要创建一个事件侦听器,在单击空格键时阻止默认事件,然后使用execCommands以编程方式输入。

MDN链接:https://developer.mozilla.org/en-US/docs/Web/API/Document/execCommand


0
投票

@ Jalay的答案几乎有效,但并不完全。这对我有用:

注释掉window.getSelection()。collapseToEnd(); Jalay功能的一部分:

function insertHtmlAtCursor(html) {
    var range, node;
    if (window.getSelection && window.getSelection().getRangeAt) {
        range = window.getSelection().getRangeAt(0);
        node = range.createContextualFragment(html);
        range.insertNode(node);
        //window.getSelection().collapseToEnd();
        window.getSelection().modify('move', 'forward', 'character');
    } else if (document.selection && document.selection.createRange) {
        document.selection.createRange().pasteHTML(html);
        document.selection.collapseToEnd();
        document.selection.modify('move', 'forward', 'character');
    }
}

然后侦听空格键keyup事件,并根据需要插入空格:

$(document).on('keyup', 'button', function(e){
   if(e.keyCode == 32){
       insertHtmlAtCursor(' ');
   }
});

这也有利于动态添加内容。

enter image description here

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