How to internationalize string used in javascript code?
While developing AJAX program, I met the design decision to make string I18N in JavaScript.code. Some string is only used by JavaScript. For example.
$('#submit').click(function() {
$(#target).html('Please wait while submitting...').load(so开发者_开发问答meURI);
}
I'd like to I18N the string 'Please wait while submitting...'. I'm not sure what's the best way to do it. Currently, I just have the string I18N-ed in server and rendered into a javascript variable in page (I'm using PHP/wordpress).
<script>strSubmit = <?php _e('Please wait while submitting...'); ?></script>
Then, in javascript, I just use the varialble
$('#submit').click(function() {
$(#target).html(strSubmit).load(someURI);
}
This works, but it looks messy. Is there any better way to achieve this?
You should use JSON to convert the server side l10n strings to a JSON object :
// In the <head> tag :
<script type="text/javascript" src="locales.php"></script>
and this in locales.php :
var l10n = <?php echo json_encode($l10n); ?>;
where $l10n is an array which contains all the locales, like this :
$l10n = array(
'Please wait while submitting...' => 'Veuillez patienter durant le traitement...',
'bah' => 'bih'
);
You can now use these strings like this in JS :
function $T(s){
return l10n[s] || s;
}
alert($T('Please wait while submitting...'));
you can also automate this by using a php "preprocessor" for javascript
<script src="script.php?file=blah.js">
where script.php is something like
function _repl($x) { return '"' . _e($x[1]) . '"'; }
$js = file_get_contents($_GET['file']);
$js = preg_replace_callback('~_e\("(.+?)"\)~', '_repl', $js);
echo $js;
this will transparently replace _e(something) in javascript code with actual strings
You could generate the text into the original script itself.
$('#submit').click(function() {
$(#target).html('<?php _e('Please wait while submitting...'); ?>').load(someURI);
}
you could create sort of REST application, where you would fill the elements of javascript strings on document load from a service:
$(function(){
var handleResponse = function.....; // fill your string elements from response
var lang = "fr"; // language of localized document
$.ajax(
type: "GET",
url: "/i18n.php?lang=" + lang + "&names=someName+someName1+someName2",
success: handleResponse
);
});
加载中,请稍侯......
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