JavaScript/jQuery:如何在Firefox中获取选定的文本

如何在Firefox中获取选定的文本(在可内容编辑的div中)?对于最新版本就足够了，无需覆盖旧版本.

how can I get the selected text (in a contenteditable div) in Firefox ? It would be enough for recent versions, no need to cover old versions.

说我有一个内容可编辑的div，如下所示，有人在那里选择了文本，然后按了一个按钮，我该如何将所选文本复制到剪贴板或变量中?

Say I have a contenteditable div that looks like the below and someone selects a text there and then hits a button, how can I copy the selected text to the clipboard or a variable ?

示例:

<div class='editInput' id='editInput'>Some awesome text</div>

我当前的功能(在IE中工作):

function GetSelection() 
{
    if (typeof window.getSelection != "undefined") 
    {
        var sel = window.getSelection();
        if (sel.rangeCount) 
        {
            var container = document.createElement('div');
            for (var i = 0, len = sel.rangeCount; i < len; ++i) 
                container.appendChild(sel.getRangeAt(i).cloneContents());
            return container.innerHTML;
        }
    }
    else if (typeof document.selection != 'undefined') 
        if (document.selection.type == 'Text') 
            return document.selection.createRange().htmlText;

    return '';
}

谢谢您的帮助，蒂姆.