我们开发了一个小型 Firefox-AddOn,用于在从编辑器复制/粘贴内容时删除特殊字符(连字符)。这是必要的,因为没有 javascript 方法可以将任何内容填充到剪贴板中。我想也应该可以为 Chrome 编写扩展程序(googel 是你的朋友)。从我的角度来看,这似乎是获得您想要的东西的唯一方法。
示例:
这是 FireFox-Addon 删除特殊字符 onCopy 所需的代码 sn-p
// get Clipboard Object
var clip = Components.classes["@mozilla.org/widget/clipboard;1"].createInstance(Components.interfaces.nsIClipboard);
// get Transferable Object
var tr_unicode = new Transferable();
var tr_html = new Transferable();
// read "text/unicode flavors" (the clipboard has several "flavours" (html, plain text, ...))
tr_unicode.addDataFlavor("text/unicode");
tr_html.addDataFlavor("text/html");
clip.getData(tr_unicode, clip.kGlobalClipboard); // Systemclipboard
clip.getData(tr_html, clip.kGlobalClipboard); // Systemclipboard
// generate objects to write the contents into (used for the clipboard)
var unicode = { }, ulen = { }, html = { }, hlen = { };
tr_html.getTransferData("text/html", html, hlen);
tr_unicode.getTransferData("text/unicode", unicode, ulen);
var unicode_obj = unicode.value.QueryInterface(Components.interfaces.nsISupportsString);
var html_obj = html.value.QueryInterface(Components.interfaces.nsISupportsString);
// we remove Softhyphen and another control character here
var re = new RegExp('[\u200b' + String.fromCharCode(173)+ ']','g');
if (unicode_obj && html_obj)
{
var unicode_str = unicode_obj.data.replace(re, '');
var html_str = html_obj.data.replace(re, '');
// Neue Stringkomponenten für unicode und HTML-Content anlegen
var unicode_in = new StringComponent();
unicode_in.data = unicode_str;
var html_in = new StringComponent();
html_in.data = html_str;
// generate new transferable to write the data back to the clipboard
// fill html + unicode flavors
var tr_in = new Transferable();
tr_in.setTransferData("text/html", html_in, html_in.data.length * 2);
tr_in.setTransferData("text/unicode", unicode_in, unicode_in.data.length * 2);
// copy content from transferable back to clipboard
clip.setData(tr_in, null, clip.kGlobalClipboard);
}