使用Tampermonkey替换许多文本术语,而不会影响URL,也不会查找类或ID

Question

我正在为流行的电子商务SAAS编写Google Chrome扩展程序,该程序将在其管理面板中将英文文本字符串替换为西班牙语.

我已经找到了一个替代一切的解决方案,所以当找到一个href时,它也会取代它,这是不需要的:

var els = document.getElementsByTagName("*");
for(var i = 0, l = els.length; i < l; i++) {
var el = els[i];
// ==Menu_left_dropdown==
el.innerHTML = el.innerHTML.replace(/View your user account/gi, 'Tu cuenta');
el.innerHTML = el.innerHTML.replace(/Terms of service/gi, 'Términos y condiciones');
el.innerHTML = el.innerHTML.replace(/Privacy policy/gi, 'Privacidad');
el.innerHTML = el.innerHTML.replace(/Log out/gi, 'Salir');
// ==Menu_left=
el.innerHTML = el.innerHTML.replace(/Search/gi, 'Buscar');
el.innerHTML = el.innerHTML.replace(/Dashboard/gi, 'Panel');
el.innerHTML = el.innerHTML.replace(/Orders/gi, 'Pedidos');
el.innerHTML = el.innerHTML.replace(/Customers/gi, 'Clientes');
el.innerHTML = el.innerHTML.replace(/Products/gi, 'Productos');
}

按类或ID获取元素并不容易维护,因为它们可能会在没有平台通知我们的情况下进行更改.我还计划添加更多的语言环境,因此任何关于如何采用更清晰的方式来组织字符串的建议都会很棒.

Answer 1

为了避免破坏URL,id,事件处理程序等; 你只需要在TEXT_NODE网页上行动.切勿使用innerHTML.

对文本节点采取行动的有效方法是使用Tree Walker.

对于替换术语,请使用数组.

总而言之,代码如下所示:

var replaceArry = [
    [/View your user account/gi,    'Tu cuenta'],
    [/Terms of service/gi,          'Términos y condiciones'],
    [/Privacy policy/gi,            'Privacidad'],
    // etc.
];
var numTerms    = replaceArry.length;
var txtWalker   = document.createTreeWalker (
    document.body,
    NodeFilter.SHOW_TEXT,
    {   acceptNode: function (node) {
            //-- Skip whitespace-only nodes
            if (node.nodeValue.trim() )
                return NodeFilter.FILTER_ACCEPT;

            return NodeFilter.FILTER_SKIP;
        }
    },
    false
);
var txtNode     = null;

while (txtNode  = txtWalker.nextNode () ) {
    var oldTxt  = txtNode.nodeValue;

    for (var J  = 0;  J < numTerms;  J++) {
        oldTxt  = oldTxt.replace (replaceArry[J][0], replaceArry[J][1]);
    }
    txtNode.nodeValue = oldTxt;
}