如何解决html js中如何取实际写入的值
我正在使用 following 库在我的测试网站中实现多语言。不过也有一些不足之处,以我的经验不足,难以解决。
脚本的工作方式是,我们有一个默认语言,它直接写入 html,并为其他语言制作字典(它们位于 js 代码的最后)。除了标题,一切正常。当我们想切换到默认语言时,标题不会改变,只有重新加载页面后才会改变。
最有可能的,问题在于以下代码段(184-186行):
if (langDict["Title"] != null) {
document.title = langDict["Title"];
}
我想我们需要添加 else
并以某种方式为其设置一个写入 html 本身的值,而不是在翻译中更改了哪个 js。
var languative;
(function (languative) {
var phraseIdAttr = "data-phrase-id";
languative.ignoreTags = {
img: "<img />",br: "<br />",hr: "<hr />"
};
languative.dictonaries = {
html: {
_id: "html",_name: "HTML"
},en: {
_id: "en",_name: "English"
},ru: {
_id: "ru",_name: "Русский - Russian"
},de: {
_id: "de",_name: "Deutsche - German"
}
};
languative.selectedDictionary = null;
function getDictionary(langKey) {
langKey = langKey.toLowerCase();
if (langKey in languative.dictonaries)
return languative.dictonaries[langKey];
var sep = langKey.indexOf("-");
if (sep > 0)
langKey = langKey.substring(0,sep);
return languative.dictonaries[langKey];
}
languative.getDictionary = getDictionary;
function getPhrase(phraseId) {
var res = findPhrase(phraseId);
if (res)
return res; else
return phraseId;
}
languative.getPhrase = getPhrase;
function findPhrase(phraseId) {
if ((phraseId == null) || (phraseId == ""))
return null;
if ((languative.selectedDictionary != null) && (phraseId in languative.selectedDictionary))
return languative.selectedDictionary[phraseId];
if (phraseId in languative.dictonaries.html)
return languative.dictonaries.html[phraseId];
return null;
}
languative.findPhrase = findPhrase;
function getYesNo(value) {
if (value === undefined)
return getPhrase("undefined"); else if (value)
return getPhrase("yes"); else
return getPhrase("no");
}
languative.getYesNo = getYesNo;
function getAttr(node,attr) {
var result = (node.getAttribute && node.getAttribute(attr)) || null;
if (!result && node.attributes) {
for (var i = 0; i < node.attributes.length; i++) {
var attrNode = node.attributes[i];
if (attrNode.nodeName === attr)
return attrNode.nodeValue;
}
}
return result;
}
function getDictionaryFromHtml() {
function getNodeValue(node) {
var res = null;
if ("innerHTML" in node) {
res = node["innerHTML"];
} else {
res = node.nodeValue;
}
if (res != null) {
res = res.replace(/\s{2,}/g,' ');
res = res.replace(/^\s+|\s+$/g,'');
}
return res;
}
function getTagPhrase(tag) {
if (tag.childNodes.length > 1) {
var resPhrase = new Array();
for (var ci = 0; ci < tag.childNodes.length; ci++) {
var chNode = tag.childNodes[ci];
var chName = chNode.nodeName.toLowerCase();
var chValue = null;
if (chName in languative.ignoreTags)
chValue = languative.ignoreTags[chName]; else
chValue = getNodeValue(chNode);
resPhrase.push(chValue);
}
return resPhrase;
} else {
return getNodeValue(tag);
}
}
var tags = getHtmlTags();
var resDict = new Object();
for (var ti = 0; ti < tags.length; ti++) {
var tag = tags[ti];
var phraseId = getAttr(tag,phraseIdAttr);
if ((phraseId != null)) {
var phraseValue = getTagPhrase(tag);
if ((phraseId in resDict) && (resDict[phraseId] != phraseValue)) {
console.warn("Different phrases with the same data-phrase-id='" + phraseId + "'\n" + " 1: " + JSON.stringify(resDict[phraseId],null," ") + "\n 2: " + JSON.stringify(phraseValue," "));
} else {
resDict[phraseId] = phraseValue;
}
}
}
return resDict;
}
languative.getDictionaryFromHtml = getDictionaryFromHtml;
function changeLanguage(langKey) {
function setTagPhrase(tag,phrase) {
if (tag.childNodes.length > 1) {
for (var ci = 0; ci < tag.childNodes.length; ci++) {
var chNode = tag.childNodes[ci];
var nName = chNode.nodeName.toLowerCase();
if (!(nName in languative.ignoreTags)) {
if ("innerHTML" in chNode) {
chNode["innerHTML"] = " " + phrase[ci] + " ";
} else {
chNode.nodeValue = " " + phrase[ci] + " ";
}
}
}
} else {
tag.innerHTML = " " + phrase + " ";
}
}
var langDict = languative.getDictionary(langKey);
if (langDict == null) {
console.warn("Cannot identify dictionary by key '" + langKey + "'. Default dictionary (" + languative.dictonaries.html._id + ": " + languative.dictonaries.html._name + ") used instead.");
langDict = languative.dictonaries.html;
}
languative.selectedDictionary = langDict;
var tags = getHtmlTags();
for (var ti = 0; ti < tags.length; ti++) {
var tag = tags[ti];
var phraseId = getAttr(tag,phraseIdAttr);
if ((phraseId != null)) {
var phraseValue = languative.getPhrase(phraseId);
if (phraseValue) {
setTagPhrase(tag,phraseValue);
} else {
console.warn("Phrase not definied in dictionary: data-phrase-id='" + phraseId + "'");
}
}
}
if (langDict["Title"] != null) {
document.title = langDict["Title"];
}
}
languative.changeLanguage = changeLanguage;
function getHtmlTags() {
var res = new Array();
var docTags = document.body.getElementsByTagName("*");
for (var i = 0; i < docTags.length; i++) {
var docTag = docTags[i];
var phraseId = getAttr(docTag,phraseIdAttr);
if (phraseId)
res.push(docTag);
}
return res;
}
var initialized = false;
function init() {
if (!initialized) {
initialized = true;
var htmlDict = languative.getDictionaryFromHtml();
for (var dictKey in htmlDict) {
if (!(dictKey in languative.dictonaries.html)) {
languative.dictonaries.html[dictKey] = htmlDict[dictKey];
}
}
var nav = window.navigator;
languative.changeLanguage(nav.userLanguage || nav.language);
}
}
languative.init = init;
function modifyDictionary(langKey,dictModifications) {
var langDict = languative.getDictionary(langKey);
if (langDict == null) {
languative.dictonaries[langKey.toLowerCase()] = dictModifications;
} else {
for (var dictKey in dictModifications) {
langDict[dictKey] = dictModifications[dictKey];
}
}
}
languative.modifyDictionary = modifyDictionary;
})(languative || (languative = {}));
if (document.addEventListener)
document.addEventListener('DOMContentLoaded',languative.init);
if (window.addEventListener) {
window.addEventListener('load',languative.init,false);
} else {
window.attachEvent('onload',languative.init);
}
languative.modifyDictionary("ru",{
Title: "Заголовок",firstmessage: "ЭТО ЯЗЫК ПО УМОЛЧАНИЮ",secondmessage: "КАКОЙ ТО ДРУГОЙ ТЕКСТ",thirdmessage: "ЧТО ТО ЕЩЕ"
});
languative.modifyDictionary("de",{
Title: "Überschrift",firstmessage: "Dies ist die Standardsprache",secondmessage: "JEDER ANDERE TEXT",thirdmessage: "ETWAS ANDERES"
});
<ul>
<li><a href="#" onclick="languative.changeLanguage('en');" data-phrase-id="english">English</a></li>
<li><a href="#" onclick="languative.changeLanguage('ru')" data-phrase-id="russian">Russian</a></li>
<li><a href="#" onclick="languative.changeLanguage('de')" data-phrase-id="german">German</a></li>
</ul>
<h1 data-phrase-id="firstmessage">THIS IS THE DEFAULT LANGUAGE</h1>
<span data-phrase-id="secondmessage">ANY OTHER TEXT</span>
<p data-phrase-id="thirdmessage">SOMETHING ELSE</p>
也在我的网站上有一个反馈表。我希望可以翻译 placeholder
值。怎么做?
我是这样理解的,但这是一个好方法吗?
if ((localStorage.getItem("lang") == "de") || (window.navigator.userLanguage == "de") || (window.navigator.language) == "de") {
document.querySelector("input[name=name]").placeholder = "Name";
document.querySelector("input[name=subject]").placeholder = "Thema";
document.querySelector("input[name=message]").placeholder = "Brief";
} else if ((localStorage.getItem("lang") == "ru") || (window.navigator.userLanguage == "ru") || (window.navigator.language) == "ru") {
document.querySelector("input[name=name]").placeholder = "Имя";
document.querySelector("input[name=subject]").placeholder = "Тема";
document.querySelector("input[name=message]").placeholder = "Сообщение";
} else {
document.querySelector("input[name=name]").placeholder = "Name";
document.querySelector("input[name=subject]").placeholder = "Subject";
document.querySelector("input[name=message]").placeholder = "Message";
};
document.querySelector('.lang').onclick = function() {
if ((localStorage.getItem("lang") == "de") || (window.navigator.userLanguage == "de") || (window.navigator.language) == "de") {
document.querySelector("input[name=name]").placeholder = "Name";
document.querySelector("input[name=subject]").placeholder = "Thema";
document.querySelector("input[name=message]").placeholder = "Brief";
} else if ((localStorage.getItem("lang") == "ru") || (window.navigator.userLanguage == "ru") || (window.navigator.language) == "ru") {
document.querySelector("input[name=name]").placeholder = "Имя";
document.querySelector("input[name=subject]").placeholder = "Тема";
document.querySelector("input[name=message]").placeholder = "Сообщение";
} else {
document.querySelector("input[name=name]").placeholder = "Name";
document.querySelector("input[name=subject]").placeholder = "Subject";
document.querySelector("input[name=message]").placeholder = "Message";
};
};
var languative;
(function (languative) {
var phraseIdAttr = "data-phrase-id";
languative.ignoreTags = {
img: "<img />",{
name: "Ваше имя",email: "Ваш email",send: "Отправить сообщение"
});
languative.modifyDictionary("de",{
name: "Ihr Name",email: "Deine E-Mail",send: "Nachricht senden"
});
ul li{
list-style: none;
}
<ul>
<li><a href="#" onclick="languative.changeLanguage('en');" data-phrase-id="english">English</a></li>
<li><a href="#" onclick="languative.changeLanguage('ru')" data-phrase-id="russian">Russian</a></li>
<li><a href="#" onclick="languative.changeLanguage('de')" data-phrase-id="german">German</a></li>
</ul>
<form>
<input type="text" name="name" data-phrase-id="name" placeholder="Your name">
<input type="text" name="email" data-phrase-id="email" placeholder="Your email">
<input type="submit" data-phrase-id="send" value="Send message">
</form>
解决方法
对于第一个片段,您应该只为包含 en
的 Title
添加一个字典,它会起作用,如下所示:
languative.modifyDictionary("en",{
Title: "Caption",});
对于第二个,有更多的工作,因为您的脚本更改了 innerHTML
,这不适合您的反馈表单,因为它只包含没有 innerHTML
的输入元素,因此脚本应该相应地修改,如下所示:
var languative;
(function (languative) {
var phraseIdAttr = "data-phrase-id";
languative.ignoreTags = {
img: "<img />",br: "<br />",hr: "<hr />"
};
languative.dictonaries = {
html: {
_id: "html",_name: "HTML"
},en: {
_id: "en",_name: "English"
},ru: {
_id: "ru",_name: "Русский - Russian"
},de: {
_id: "de",_name: "Deutsche - German"
}
};
languative.selectedDictionary = null;
function getDictionary(langKey) {
langKey = langKey.toLowerCase();
if (langKey in languative.dictonaries)
return languative.dictonaries[langKey];
var sep = langKey.indexOf("-");
if (sep > 0)
langKey = langKey.substring(0,sep);
return languative.dictonaries[langKey];
}
languative.getDictionary = getDictionary;
function getPhrase(phraseId) {
var res = findPhrase(phraseId);
if (res)
return res; else
return phraseId;
}
languative.getPhrase = getPhrase;
function findPhrase(phraseId) {
if ((phraseId == null) || (phraseId == ""))
return null;
if ((languative.selectedDictionary != null) && (phraseId in languative.selectedDictionary))
return languative.selectedDictionary[phraseId];
if (phraseId in languative.dictonaries.html)
return languative.dictonaries.html[phraseId];
return null;
}
languative.findPhrase = findPhrase;
function getYesNo(value) {
if (value === undefined)
return getPhrase("undefined"); else if (value)
return getPhrase("yes"); else
return getPhrase("no");
}
languative.getYesNo = getYesNo;
function getAttr(node,attr) {
var result = (node.getAttribute && node.getAttribute(attr)) || null;
if (!result && node.attributes) {
for (var i = 0; i < node.attributes.length; i++) {
var attrNode = node.attributes[i];
if (attrNode.nodeName === attr)
return attrNode.nodeValue;
}
}
return result;
}
function getDictionaryFromHtml() {
function getNodeValue(node) {
var res = null;
if (node.tagName !== 'INPUT') {
if ("innerHTML" in node) {
res = node["innerHTML"];
} else {
res = node.nodeValue;
}
} else {
res = node.getAttribute("placeholder") || node.value;
}
if (res != null) {
res = res.replace(/\s{2,}/g,' ');
res = res.replace(/^\s+|\s+$/g,'');
}
return res;
}
function getTagPhrase(tag) {
if (tag.childNodes.length > 1) {
var resPhrase = new Array();
for (var ci = 0; ci < tag.childNodes.length; ci++) {
var chNode = tag.childNodes[ci];
var chName = chNode.nodeName.toLowerCase();
var chValue = null;
if (chName in languative.ignoreTags)
chValue = languative.ignoreTags[chName]; else
chValue = getNodeValue(chNode);
resPhrase.push(chValue);
}
return resPhrase;
} else {
return getNodeValue(tag);
}
}
var tags = getHtmlTags();
var resDict = new Object();
for (var ti = 0; ti < tags.length; ti++) {
var tag = tags[ti];
var phraseId = getAttr(tag,phraseIdAttr);
if ((phraseId != null)) {
var phraseValue = getTagPhrase(tag);
if ((phraseId in resDict) && (resDict[phraseId] != phraseValue)) {
console.warn("Different phrases with the same data-phrase-id='" + phraseId + "'\n" + " 1: " + JSON.stringify(resDict[phraseId],null," ") + "\n 2: " + JSON.stringify(phraseValue," "));
} else {
resDict[phraseId] = phraseValue;
}
}
}
return resDict;
}
languative.getDictionaryFromHtml = getDictionaryFromHtml;
function changeLanguage(langKey) {
function setTagPhrase(tag,phrase) {
if (tag.childNodes.length > 1) {
for (var ci = 0; ci < tag.childNodes.length; ci++) {
var chNode = tag.childNodes[ci];
var nName = chNode.nodeName.toLowerCase();
if (!(nName in languative.ignoreTags)) {
console.log(chNode.tagName)
if (chNode.tagType !== 'INPUT') {
if ("innerHTML" in chNode) {
chNode["innerHTML"] = " " + phrase[ci] + " ";
} else {
chNode.nodeValue = " " + phrase[ci] + " ";
}
} else {
chNode.hasAttribute("placeholder")
? chNode.setAttribute("placeholder",phrase[ci])
: chNode.value = phrase[ci];
}
}
}
} else {
if (tag.tagName !== 'INPUT') {
tag.innerHTML = " " + phrase + " ";
} else {
tag.hasAttribute("placeholder")
? tag.setAttribute("placeholder",phrase)
: tag.value = phrase;
}
}
}
var langDict = languative.getDictionary(langKey);
if (langDict == null) {
console.warn("Cannot identify dictionary by key '" + langKey + "'. Default dictionary (" + languative.dictonaries.html._id + ": " + languative.dictonaries.html._name + ") used instead.");
langDict = languative.dictonaries.html;
}
languative.selectedDictionary = langDict;
var tags = getHtmlTags();
for (var ti = 0; ti < tags.length; ti++) {
var tag = tags[ti];
var phraseId = getAttr(tag,phraseIdAttr);
if ((phraseId != null)) {
var phraseValue = languative.getPhrase(phraseId);
if (phraseValue) {
setTagPhrase(tag,phraseValue);
} else {
console.warn("Phrase not definied in dictionary: data-phrase-id='" + phraseId + "'");
}
}
}
if (langDict["Title"] != null) {
document.title = langDict["Title"];
}
}
languative.changeLanguage = changeLanguage;
function getHtmlTags() {
var res = new Array();
var docTags = document.body.getElementsByTagName("*");
for (var i = 0; i < docTags.length; i++) {
var docTag = docTags[i];
var phraseId = getAttr(docTag,phraseIdAttr);
if (phraseId)
res.push(docTag);
}
return res;
}
var initialized = false;
function init() {
if (!initialized) {
initialized = true;
var htmlDict = languative.getDictionaryFromHtml();
for (var dictKey in htmlDict) {
if (!(dictKey in languative.dictonaries.html)) {
languative.dictonaries.html[dictKey] = htmlDict[dictKey];
}
}
var nav = window.navigator;
languative.changeLanguage(nav.userLanguage || nav.language);
}
}
languative.init = init;
function modifyDictionary(langKey,dictModifications) {
var langDict = languative.getDictionary(langKey);
if (langDict == null) {
languative.dictonaries[langKey.toLowerCase()] = dictModifications;
} else {
for (var dictKey in dictModifications) {
langDict[dictKey] = dictModifications[dictKey];
}
}
}
languative.modifyDictionary = modifyDictionary;
})(languative || (languative = {}));
if (document.addEventListener)
document.addEventListener('DOMContentLoaded',languative.init);
if (window.addEventListener) {
window.addEventListener('load',languative.init,false);
} else {
window.attachEvent('onload',languative.init);
}
languative.modifyDictionary("ru",{
name: "Ваше имя",email: "Ваш email",send: "Отправить сообщение"
});
languative.modifyDictionary("de",{
name: "Ihr Name",email: "Deine E-Mail",send: "Nachricht senden"
});
ul li{
list-style: none;
}
<ul>
<li><a href="#" onclick="languative.changeLanguage('en');" data-phrase-id="english">English</a></li>
<li><a href="#" onclick="languative.changeLanguage('ru')" data-phrase-id="russian">Russian</a></li>
<li><a href="#" onclick="languative.changeLanguage('de')" data-phrase-id="german">German</a></li>
</ul>
<form>
<input type="text" name="name" data-phrase-id="name" placeholder="Your name">
<input type="text" name="email" data-phrase-id="email" placeholder="Your email">
<input type="submit" data-phrase-id="send" value="Send message">
</form>
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