mirror of
https://github.com/ether/etherpad-lite.git
synced 2025-10-31 16:21:11 +01:00
1028 lines
28 KiB
JavaScript
1028 lines
28 KiB
JavaScript
/** Copyright (c) 2011-2012 Fabien Cazenave, Mozilla.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
/*jshint browser: true, devel: true, es5: true, globalstrict: true */
|
|
'use strict';
|
|
|
|
document.webL10n = (function(window, document, undefined) {
|
|
var gL10nData = {};
|
|
var gTextData = '';
|
|
var gTextProp = 'textContent';
|
|
var gLanguage = '';
|
|
var gMacros = {};
|
|
var gReadyState = 'loading';
|
|
|
|
// read-only setting -- we recommend to load l10n resources synchronously
|
|
var gAsyncResourceLoading = true;
|
|
|
|
// debug helpers
|
|
var gDEBUG = false;
|
|
function consoleLog(message) {
|
|
if (gDEBUG)
|
|
console.log('[l10n] ' + message);
|
|
};
|
|
function consoleWarn(message) {
|
|
if (gDEBUG)
|
|
console.warn('[l10n] ' + message);
|
|
};
|
|
|
|
/**
|
|
* DOM helpers for the so-called "HTML API".
|
|
*
|
|
* These functions are written for modern browsers. For old versions of IE,
|
|
* they're overridden in the 'startup' section at the end of this file.
|
|
*/
|
|
|
|
function getL10nResourceLinks() {
|
|
return document.querySelectorAll('link[type="application/l10n"]');
|
|
}
|
|
|
|
function getTranslatableChildren(element) {
|
|
return element ? element.querySelectorAll('*[data-l10n-id]') : [];
|
|
}
|
|
|
|
function getL10nAttributes(element) {
|
|
if (!element)
|
|
return {};
|
|
|
|
var l10nId = element.getAttribute('data-l10n-id');
|
|
var l10nArgs = element.getAttribute('data-l10n-args');
|
|
var args = {};
|
|
if (l10nArgs) {
|
|
try {
|
|
args = JSON.parse(l10nArgs);
|
|
} catch (e) {
|
|
consoleWarn('could not parse arguments for #' + l10nId);
|
|
}
|
|
}
|
|
return { id: l10nId, args: args };
|
|
}
|
|
|
|
function fireL10nReadyEvent(lang) {
|
|
var evtObject = document.createEvent('Event');
|
|
evtObject.initEvent('localized', false, false);
|
|
evtObject.language = lang;
|
|
window.dispatchEvent(evtObject);
|
|
}
|
|
|
|
|
|
/**
|
|
* l10n resource parser:
|
|
* - reads (async XHR) the l10n resource matching `lang';
|
|
* - imports linked resources (synchronously) when specified;
|
|
* - parses the text data (fills `gL10nData' and `gTextData');
|
|
* - triggers success/failure callbacks when done.
|
|
*
|
|
* @param {string} href
|
|
* URL of the l10n resource to parse.
|
|
*
|
|
* @param {string} lang
|
|
* locale (language) to parse.
|
|
*
|
|
* @param {Function} successCallback
|
|
* triggered when the l10n resource has been successully parsed.
|
|
*
|
|
* @param {Function} failureCallback
|
|
* triggered when the an error has occured.
|
|
*
|
|
* @return {void}
|
|
* uses the following global variables: gL10nData, gTextData, gTextProp.
|
|
*/
|
|
|
|
function parseResource(href, lang, successCallback, failureCallback) {
|
|
var baseURL = href.replace(/\/[^\/]*$/, '/');
|
|
|
|
// handle escaped characters (backslashes) in a string
|
|
function evalString(text) {
|
|
if (text.lastIndexOf('\\') < 0)
|
|
return text;
|
|
return text.replace(/\\\\/g, '\\')
|
|
.replace(/\\n/g, '\n')
|
|
.replace(/\\r/g, '\r')
|
|
.replace(/\\t/g, '\t')
|
|
.replace(/\\b/g, '\b')
|
|
.replace(/\\f/g, '\f')
|
|
.replace(/\\{/g, '{')
|
|
.replace(/\\}/g, '}')
|
|
.replace(/\\"/g, '"')
|
|
.replace(/\\'/g, "'");
|
|
}
|
|
|
|
// parse *.properties text data into an l10n dictionary
|
|
function parseProperties(text) {
|
|
var dictionary = {};
|
|
|
|
// token expressions
|
|
var reBlank = /^\s*|\s*$/;
|
|
var reComment = /^\s*;|^\s*$/;// Use ; for comments!
|
|
var reSection = /^\s*\[(.*)\]\s*$/;
|
|
var reImport = /^\s*@import\s+url\((.*)\)\s*$/i;
|
|
var reSplit = /^([^=\s]*)\s*=\s*(.+)$/; // TODO: escape EOLs with '\'
|
|
|
|
// parse the *.properties file into an associative array
|
|
function parseRawLines(rawText, extendedSyntax) {
|
|
var entries = rawText.replace(reBlank, '').split(/[\r\n]+/);
|
|
var currentLang = '*';
|
|
var genericLang = lang.replace(/-[a-z]+$/i, '');
|
|
var skipLang = false;
|
|
var match = '';
|
|
|
|
for (var i = 0; i < entries.length; i++) {
|
|
var line = entries[i];
|
|
|
|
// comment or blank line?
|
|
if (reComment.test(line))
|
|
continue;
|
|
|
|
// the extended syntax supports [lang] sections and @import rules
|
|
if (extendedSyntax) {
|
|
if (reSection.test(line)) { // section start?
|
|
match = reSection.exec(line);
|
|
currentLang = match[1];
|
|
skipLang = (currentLang !== '*') &&
|
|
(currentLang !== lang) && (currentLang !== genericLang);
|
|
continue;
|
|
} else if (skipLang) {
|
|
continue;
|
|
}
|
|
if (reImport.test(line)) { // @import rule?
|
|
match = reImport.exec(line);
|
|
loadImport(baseURL + match[1]); // load the resource synchronously
|
|
}
|
|
}
|
|
|
|
// key-value pair
|
|
consoleLog(tmp)
|
|
var tmp = line.match(reSplit);
|
|
if (tmp && tmp.length == 3)
|
|
dictionary[tmp[1]] = evalString(tmp[2]);
|
|
}
|
|
}
|
|
|
|
// import another *.properties file
|
|
function loadImport(url) {
|
|
loadResource(url, function(content) {
|
|
parseRawLines(content, false); // don't allow recursive imports
|
|
}, false, false); // load synchronously
|
|
}
|
|
|
|
// fill the dictionary
|
|
parseRawLines(text, true);
|
|
return dictionary;
|
|
}
|
|
|
|
// load the specified resource file
|
|
function loadResource(url, onSuccess, onFailure, asynchronous) {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, asynchronous);
|
|
if (xhr.overrideMimeType) {
|
|
xhr.overrideMimeType('text/plain; charset=utf-8');
|
|
}
|
|
xhr.onreadystatechange = function() {
|
|
if (xhr.readyState == 4) {
|
|
if (xhr.status == 200 || xhr.status === 0) {
|
|
if (onSuccess)
|
|
onSuccess(xhr.responseText);
|
|
} else {
|
|
if (onFailure)
|
|
onFailure();
|
|
}
|
|
}
|
|
};
|
|
xhr.send(null);
|
|
}
|
|
|
|
// load and parse l10n data (warning: global variables are used here)
|
|
loadResource(href, function(response) {
|
|
gTextData += response; // mostly for debug
|
|
|
|
// parse *.properties text data into an l10n dictionary
|
|
var data = parseProperties(response);
|
|
|
|
// allowed attributes
|
|
var attrList =
|
|
{ "title": 1
|
|
, "innerHTML": 1
|
|
, "alt": 1
|
|
, "textContent": 1
|
|
}
|
|
|
|
// find attribute descriptions, if any
|
|
for (var key in data) {
|
|
var id, prop, index = key.lastIndexOf('.');
|
|
if (index > 0 && key.substr(index + 1) in attrList) { // an attribute has been specified
|
|
id = key.substring(0, index);
|
|
prop = key.substr(index + 1);
|
|
} else { // no attribute: assuming text content by default
|
|
id = key;
|
|
prop = gTextProp;
|
|
}
|
|
if (!gL10nData[id]) {
|
|
gL10nData[id] = {};
|
|
}
|
|
gL10nData[id][prop] = data[key];
|
|
}
|
|
|
|
// trigger callback
|
|
if (successCallback)
|
|
successCallback();
|
|
}, failureCallback, gAsyncResourceLoading);
|
|
};
|
|
|
|
// load and parse all resources for the specified locale
|
|
function loadLocale(lang, callback) {
|
|
clear();
|
|
gLanguage = lang;
|
|
|
|
// check all <link type="application/l10n" href="..." /> nodes
|
|
// and load the resource files
|
|
var langLinks = getL10nResourceLinks();
|
|
var langCount = langLinks.length;
|
|
if (langCount == 0) {
|
|
consoleLog('no resource to load, early way out');
|
|
fireL10nReadyEvent(lang);
|
|
gReadyState = 'complete';
|
|
return;
|
|
}
|
|
|
|
// start the callback when all resources are loaded
|
|
var onResourceLoaded = null;
|
|
var gResourceCount = 0;
|
|
onResourceLoaded = function() {
|
|
gResourceCount++;
|
|
if (gResourceCount >= langCount) {
|
|
if (callback) // execute the [optional] callback
|
|
callback();
|
|
fireL10nReadyEvent(lang);
|
|
gReadyState = 'complete';
|
|
}
|
|
};
|
|
|
|
// load all resource files
|
|
function l10nResourceLink(link) {
|
|
var href = link.href;
|
|
var type = link.type;
|
|
this.load = function(lang, callback) {
|
|
var applied = lang;
|
|
parseResource(href, lang, callback, function() {
|
|
consoleWarn(href + ' not found.');
|
|
applied = '';
|
|
});
|
|
return applied; // return lang if found, an empty string if not found
|
|
};
|
|
}
|
|
|
|
for (var i = 0; i < langCount; i++) {
|
|
var resource = new l10nResourceLink(langLinks[i]);
|
|
var rv = resource.load(lang, onResourceLoaded);
|
|
if (rv != lang) { // lang not found, used default resource instead
|
|
consoleWarn('"' + lang + '" resource not found');
|
|
gLanguage = '';
|
|
}
|
|
}
|
|
}
|
|
|
|
// clear all l10n data
|
|
function clear() {
|
|
gL10nData = {};
|
|
gTextData = '';
|
|
gLanguage = '';
|
|
// TODO: clear all non predefined macros.
|
|
// There's no such macro /yet/ but we're planning to have some...
|
|
}
|
|
|
|
|
|
/**
|
|
* Get rules for plural forms (shared with JetPack), see:
|
|
* http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html
|
|
* https://github.com/mozilla/addon-sdk/blob/master/python-lib/plural-rules-generator.p
|
|
*
|
|
* @param {string} lang
|
|
* locale (language) used.
|
|
*
|
|
* @return {Function}
|
|
* returns a function that gives the plural form name for a given integer:
|
|
* var fun = getPluralRules('en');
|
|
* fun(1) -> 'one'
|
|
* fun(0) -> 'other'
|
|
* fun(1000) -> 'other'.
|
|
*/
|
|
|
|
function getPluralRules(lang) {
|
|
var locales2rules = {
|
|
'af': 3,
|
|
'ak': 4,
|
|
'am': 4,
|
|
'ar': 1,
|
|
'asa': 3,
|
|
'az': 0,
|
|
'be': 11,
|
|
'bem': 3,
|
|
'bez': 3,
|
|
'bg': 3,
|
|
'bh': 4,
|
|
'bm': 0,
|
|
'bn': 3,
|
|
'bo': 0,
|
|
'br': 20,
|
|
'brx': 3,
|
|
'bs': 11,
|
|
'ca': 3,
|
|
'cgg': 3,
|
|
'chr': 3,
|
|
'cs': 12,
|
|
'cy': 17,
|
|
'da': 3,
|
|
'de': 3,
|
|
'dv': 3,
|
|
'dz': 0,
|
|
'ee': 3,
|
|
'el': 3,
|
|
'en': 3,
|
|
'eo': 3,
|
|
'es': 3,
|
|
'et': 3,
|
|
'eu': 3,
|
|
'fa': 0,
|
|
'ff': 5,
|
|
'fi': 3,
|
|
'fil': 4,
|
|
'fo': 3,
|
|
'fr': 5,
|
|
'fur': 3,
|
|
'fy': 3,
|
|
'ga': 8,
|
|
'gd': 24,
|
|
'gl': 3,
|
|
'gsw': 3,
|
|
'gu': 3,
|
|
'guw': 4,
|
|
'gv': 23,
|
|
'ha': 3,
|
|
'haw': 3,
|
|
'he': 2,
|
|
'hi': 4,
|
|
'hr': 11,
|
|
'hu': 0,
|
|
'id': 0,
|
|
'ig': 0,
|
|
'ii': 0,
|
|
'is': 3,
|
|
'it': 3,
|
|
'iu': 7,
|
|
'ja': 0,
|
|
'jmc': 3,
|
|
'jv': 0,
|
|
'ka': 0,
|
|
'kab': 5,
|
|
'kaj': 3,
|
|
'kcg': 3,
|
|
'kde': 0,
|
|
'kea': 0,
|
|
'kk': 3,
|
|
'kl': 3,
|
|
'km': 0,
|
|
'kn': 0,
|
|
'ko': 0,
|
|
'ksb': 3,
|
|
'ksh': 21,
|
|
'ku': 3,
|
|
'kw': 7,
|
|
'lag': 18,
|
|
'lb': 3,
|
|
'lg': 3,
|
|
'ln': 4,
|
|
'lo': 0,
|
|
'lt': 10,
|
|
'lv': 6,
|
|
'mas': 3,
|
|
'mg': 4,
|
|
'mk': 16,
|
|
'ml': 3,
|
|
'mn': 3,
|
|
'mo': 9,
|
|
'mr': 3,
|
|
'ms': 0,
|
|
'mt': 15,
|
|
'my': 0,
|
|
'nah': 3,
|
|
'naq': 7,
|
|
'nb': 3,
|
|
'nd': 3,
|
|
'ne': 3,
|
|
'nl': 3,
|
|
'nn': 3,
|
|
'no': 3,
|
|
'nr': 3,
|
|
'nso': 4,
|
|
'ny': 3,
|
|
'nyn': 3,
|
|
'om': 3,
|
|
'or': 3,
|
|
'pa': 3,
|
|
'pap': 3,
|
|
'pl': 13,
|
|
'ps': 3,
|
|
'pt': 3,
|
|
'rm': 3,
|
|
'ro': 9,
|
|
'rof': 3,
|
|
'ru': 11,
|
|
'rwk': 3,
|
|
'sah': 0,
|
|
'saq': 3,
|
|
'se': 7,
|
|
'seh': 3,
|
|
'ses': 0,
|
|
'sg': 0,
|
|
'sh': 11,
|
|
'shi': 19,
|
|
'sk': 12,
|
|
'sl': 14,
|
|
'sma': 7,
|
|
'smi': 7,
|
|
'smj': 7,
|
|
'smn': 7,
|
|
'sms': 7,
|
|
'sn': 3,
|
|
'so': 3,
|
|
'sq': 3,
|
|
'sr': 11,
|
|
'ss': 3,
|
|
'ssy': 3,
|
|
'st': 3,
|
|
'sv': 3,
|
|
'sw': 3,
|
|
'syr': 3,
|
|
'ta': 3,
|
|
'te': 3,
|
|
'teo': 3,
|
|
'th': 0,
|
|
'ti': 4,
|
|
'tig': 3,
|
|
'tk': 3,
|
|
'tl': 4,
|
|
'tn': 3,
|
|
'to': 0,
|
|
'tr': 0,
|
|
'ts': 3,
|
|
'tzm': 22,
|
|
'uk': 11,
|
|
'ur': 3,
|
|
've': 3,
|
|
'vi': 0,
|
|
'vun': 3,
|
|
'wa': 4,
|
|
'wae': 3,
|
|
'wo': 0,
|
|
'xh': 3,
|
|
'xog': 3,
|
|
'yo': 0,
|
|
'zh': 0,
|
|
'zu': 3
|
|
};
|
|
|
|
// utility functions for plural rules methods
|
|
function isIn(n, list) {
|
|
return list.indexOf(n) !== -1;
|
|
}
|
|
function isBetween(n, start, end) {
|
|
return start <= n && n <= end;
|
|
}
|
|
|
|
// list of all plural rules methods:
|
|
// map an integer to the plural form name to use
|
|
var pluralRules = {
|
|
'0': function(n) {
|
|
return 'other';
|
|
},
|
|
'1': function(n) {
|
|
if ((isBetween((n % 100), 3, 10)))
|
|
return 'few';
|
|
if (n === 0)
|
|
return 'zero';
|
|
if ((isBetween((n % 100), 11, 99)))
|
|
return 'many';
|
|
if (n == 2)
|
|
return 'two';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'2': function(n) {
|
|
if (n !== 0 && (n % 10) === 0)
|
|
return 'many';
|
|
if (n == 2)
|
|
return 'two';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'3': function(n) {
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'4': function(n) {
|
|
if ((isBetween(n, 0, 1)))
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'5': function(n) {
|
|
if ((isBetween(n, 0, 2)) && n != 2)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'6': function(n) {
|
|
if (n === 0)
|
|
return 'zero';
|
|
if ((n % 10) == 1 && (n % 100) != 11)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'7': function(n) {
|
|
if (n == 2)
|
|
return 'two';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'8': function(n) {
|
|
if ((isBetween(n, 3, 6)))
|
|
return 'few';
|
|
if ((isBetween(n, 7, 10)))
|
|
return 'many';
|
|
if (n == 2)
|
|
return 'two';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'9': function(n) {
|
|
if (n === 0 || n != 1 && (isBetween((n % 100), 1, 19)))
|
|
return 'few';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'10': function(n) {
|
|
if ((isBetween((n % 10), 2, 9)) && !(isBetween((n % 100), 11, 19)))
|
|
return 'few';
|
|
if ((n % 10) == 1 && !(isBetween((n % 100), 11, 19)))
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'11': function(n) {
|
|
if ((isBetween((n % 10), 2, 4)) && !(isBetween((n % 100), 12, 14)))
|
|
return 'few';
|
|
if ((n % 10) === 0 ||
|
|
(isBetween((n % 10), 5, 9)) ||
|
|
(isBetween((n % 100), 11, 14)))
|
|
return 'many';
|
|
if ((n % 10) == 1 && (n % 100) != 11)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'12': function(n) {
|
|
if ((isBetween(n, 2, 4)))
|
|
return 'few';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'13': function(n) {
|
|
if ((isBetween((n % 10), 2, 4)) && !(isBetween((n % 100), 12, 14)))
|
|
return 'few';
|
|
if (n != 1 && (isBetween((n % 10), 0, 1)) ||
|
|
(isBetween((n % 10), 5, 9)) ||
|
|
(isBetween((n % 100), 12, 14)))
|
|
return 'many';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'14': function(n) {
|
|
if ((isBetween((n % 100), 3, 4)))
|
|
return 'few';
|
|
if ((n % 100) == 2)
|
|
return 'two';
|
|
if ((n % 100) == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'15': function(n) {
|
|
if (n === 0 || (isBetween((n % 100), 2, 10)))
|
|
return 'few';
|
|
if ((isBetween((n % 100), 11, 19)))
|
|
return 'many';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'16': function(n) {
|
|
if ((n % 10) == 1 && n != 11)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'17': function(n) {
|
|
if (n == 3)
|
|
return 'few';
|
|
if (n === 0)
|
|
return 'zero';
|
|
if (n == 6)
|
|
return 'many';
|
|
if (n == 2)
|
|
return 'two';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'18': function(n) {
|
|
if (n === 0)
|
|
return 'zero';
|
|
if ((isBetween(n, 0, 2)) && n !== 0 && n != 2)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'19': function(n) {
|
|
if ((isBetween(n, 2, 10)))
|
|
return 'few';
|
|
if ((isBetween(n, 0, 1)))
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'20': function(n) {
|
|
if ((isBetween((n % 10), 3, 4) || ((n % 10) == 9)) && !(
|
|
isBetween((n % 100), 10, 19) ||
|
|
isBetween((n % 100), 70, 79) ||
|
|
isBetween((n % 100), 90, 99)
|
|
))
|
|
return 'few';
|
|
if ((n % 1000000) === 0 && n !== 0)
|
|
return 'many';
|
|
if ((n % 10) == 2 && !isIn((n % 100), [12, 72, 92]))
|
|
return 'two';
|
|
if ((n % 10) == 1 && !isIn((n % 100), [11, 71, 91]))
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'21': function(n) {
|
|
if (n === 0)
|
|
return 'zero';
|
|
if (n == 1)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'22': function(n) {
|
|
if ((isBetween(n, 0, 1)) || (isBetween(n, 11, 99)))
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'23': function(n) {
|
|
if ((isBetween((n % 10), 1, 2)) || (n % 20) === 0)
|
|
return 'one';
|
|
return 'other';
|
|
},
|
|
'24': function(n) {
|
|
if ((isBetween(n, 3, 10) || isBetween(n, 13, 19)))
|
|
return 'few';
|
|
if (isIn(n, [2, 12]))
|
|
return 'two';
|
|
if (isIn(n, [1, 11]))
|
|
return 'one';
|
|
return 'other';
|
|
}
|
|
};
|
|
|
|
// return a function that gives the plural form name for a given integer
|
|
var index = locales2rules[lang.replace(/-.*$/, '')];
|
|
if (!(index in pluralRules)) {
|
|
consoleWarn('plural form unknown for [' + lang + ']');
|
|
return function() { return 'other'; };
|
|
}
|
|
return pluralRules[index];
|
|
}
|
|
|
|
// pre-defined 'plural' macro
|
|
gMacros.plural = function(str, param, key, prop) {
|
|
var n = parseFloat(param);
|
|
if (isNaN(n))
|
|
return str;
|
|
|
|
// TODO: support other properties (l20n still doesn't...)
|
|
if (prop != gTextProp)
|
|
return str;
|
|
|
|
// initialize _pluralRules
|
|
if (!gMacros._pluralRules)
|
|
gMacros._pluralRules = getPluralRules(gLanguage);
|
|
var index = '[' + gMacros._pluralRules(n) + ']';
|
|
|
|
// try to find a [zero|one|two] key if it's defined
|
|
if (n === 0 && (key + '[zero]') in gL10nData) {
|
|
str = gL10nData[key + '[zero]'][prop];
|
|
} else if (n == 1 && (key + '[one]') in gL10nData) {
|
|
str = gL10nData[key + '[one]'][prop];
|
|
} else if (n == 2 && (key + '[two]') in gL10nData) {
|
|
str = gL10nData[key + '[two]'][prop];
|
|
} else if ((key + index) in gL10nData) {
|
|
str = gL10nData[key + index][prop];
|
|
}
|
|
|
|
return str;
|
|
};
|
|
|
|
|
|
/**
|
|
* l10n dictionary functions
|
|
*/
|
|
|
|
// fetch an l10n object, warn if not found, apply `args' if possible
|
|
function getL10nData(key, args) {
|
|
var data = gL10nData[key];
|
|
if (!data) {
|
|
consoleWarn('#' + key + ' missing for [' + gLanguage + ']');
|
|
}
|
|
|
|
/** This is where l10n expressions should be processed.
|
|
* The plan is to support C-style expressions from the l20n project;
|
|
* until then, only two kinds of simple expressions are supported:
|
|
* {[ index ]} and {{ arguments }}.
|
|
*/
|
|
var rv = {};
|
|
for (var prop in data) {
|
|
var str = data[prop];
|
|
str = substIndexes(str, args, key, prop);
|
|
str = substArguments(str, args);
|
|
rv[prop] = str;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
// replace {[macros]} with their values
|
|
function substIndexes(str, args, key, prop) {
|
|
var reIndex = /\{\[\s*([a-zA-Z]+)\(([a-zA-Z]+)\)\s*\]\}/;
|
|
var reMatch = reIndex.exec(str);
|
|
if (!reMatch || !reMatch.length)
|
|
return str;
|
|
|
|
// an index/macro has been found
|
|
// Note: at the moment, only one parameter is supported
|
|
var macroName = reMatch[1];
|
|
var paramName = reMatch[2];
|
|
var param;
|
|
if (args && paramName in args) {
|
|
param = args[paramName];
|
|
} else if (paramName in gL10nData) {
|
|
param = gL10nData[paramName];
|
|
}
|
|
|
|
// there's no macro parser yet: it has to be defined in gMacros
|
|
if (macroName in gMacros) {
|
|
var macro = gMacros[macroName];
|
|
str = macro(str, param, key, prop);
|
|
}
|
|
return str;
|
|
}
|
|
|
|
// replace {{arguments}} with their values
|
|
function substArguments(str, args) {
|
|
var reArgs = /\{\{\s*([a-zA-Z\.]+)\s*\}\}/;
|
|
var match = reArgs.exec(str);
|
|
while (match) {
|
|
if (!match || match.length < 2)
|
|
return str; // argument key not found
|
|
|
|
var arg = match[1];
|
|
var sub = '';
|
|
if (arg in args) {
|
|
sub = args[arg];
|
|
} else if (arg in gL10nData) {
|
|
sub = gL10nData[arg][gTextProp];
|
|
} else {
|
|
consoleWarn('could not find argument {{' + arg + '}}');
|
|
return str;
|
|
}
|
|
|
|
str = str.substring(0, match.index) + sub +
|
|
str.substr(match.index + match[0].length);
|
|
match = reArgs.exec(str);
|
|
}
|
|
return str;
|
|
}
|
|
|
|
// translate an HTML element
|
|
function translateElement(element) {
|
|
var l10n = getL10nAttributes(element);
|
|
if (!l10n.id)
|
|
return;
|
|
|
|
// get the related l10n object
|
|
var data = getL10nData(l10n.id, l10n.args);
|
|
if (!data) {
|
|
consoleWarn('#' + l10n.id + ' missing for [' + gLanguage + ']');
|
|
return;
|
|
}
|
|
|
|
// translate element (TODO: security checks?)
|
|
// for the node content, replace the content of the first child textNode
|
|
// and clear other child textNodes
|
|
if (data[gTextProp]) { // XXX
|
|
if (element.children.length === 0) {
|
|
element[gTextProp] = data[gTextProp];
|
|
} else {
|
|
var children = element.childNodes,
|
|
found = false;
|
|
for (var i = 0, l = children.length; i < l; i++) {
|
|
if (children[i].nodeType === 3 &&
|
|
/\S/.test(children[i].textContent)) { // XXX
|
|
// using nodeValue seems cross-browser
|
|
if (found) {
|
|
children[i].nodeValue = '';
|
|
} else {
|
|
children[i].nodeValue = data[gTextProp];
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
if (!found) {
|
|
consoleWarn('unexpected error, could not translate element content');
|
|
}
|
|
}
|
|
delete data[gTextProp];
|
|
}
|
|
|
|
for (var k in data) {
|
|
element[k] = data[k];
|
|
}
|
|
}
|
|
|
|
// translate an HTML subtree
|
|
function translateFragment(element) {
|
|
element = element || document.documentElement;
|
|
|
|
// check all translatable children (= w/ a `data-l10n-id' attribute)
|
|
var children = getTranslatableChildren(element);
|
|
var elementCount = children.length;
|
|
for (var i = 0; i < elementCount; i++) {
|
|
translateElement(children[i]);
|
|
}
|
|
|
|
// translate element itself if necessary
|
|
translateElement(element);
|
|
}
|
|
|
|
|
|
/**
|
|
* Startup & Public API
|
|
*
|
|
* Warning: this part of the code contains browser-specific chunks --
|
|
* that's where obsolete browsers, namely IE8 and earlier, are handled.
|
|
*
|
|
* Unlike the rest of the lib, this section is not shared with FirefoxOS/Gaia.
|
|
*/
|
|
|
|
// browser-specific startup
|
|
if (document.addEventListener) { // modern browsers and IE9+
|
|
document.addEventListener('DOMContentLoaded', function() {
|
|
var lang = document.documentElement.lang || navigator.language || navigator.userLanguage || 'en';
|
|
loadLocale(lang, translateFragment);
|
|
}, false);
|
|
} else if (window.attachEvent) { // IE8 and before (= oldIE)
|
|
// TODO: check if jQuery is loaded (CSS selector + JSON + events)
|
|
|
|
// dummy `console.log' and `console.warn' functions
|
|
if (!window.console) {
|
|
consoleLog = function(message) {}; // just ignore console.log calls
|
|
consoleWarn = function(message) {
|
|
if (gDEBUG)
|
|
alert('[l10n] ' + message); // vintage debugging, baby!
|
|
};
|
|
}
|
|
|
|
// worst hack ever for IE6 and IE7
|
|
if (!window.JSON) {
|
|
consoleWarn('[l10n] no JSON support');
|
|
|
|
getL10nAttributes = function(element) {
|
|
if (!element)
|
|
return {};
|
|
var l10nId = element.getAttribute('data-l10n-id'),
|
|
l10nArgs = element.getAttribute('data-l10n-args'),
|
|
args = {};
|
|
if (l10nArgs) try {
|
|
args = eval(l10nArgs); // XXX yeah, I know...
|
|
} catch (e) {
|
|
consoleWarn('[l10n] could not parse arguments for #' + l10nId);
|
|
}
|
|
return { id: l10nId, args: args };
|
|
};
|
|
}
|
|
|
|
// override `getTranslatableChildren' and `getL10nResourceLinks'
|
|
if (!document.querySelectorAll) {
|
|
consoleWarn('[l10n] no "querySelectorAll" support');
|
|
|
|
getTranslatableChildren = function(element) {
|
|
if (!element)
|
|
return [];
|
|
var nodes = element.getElementsByTagName('*'),
|
|
l10nElements = [],
|
|
n = nodes.length;
|
|
for (var i = 0; i < n; i++) {
|
|
if (nodes[i].getAttribute('data-l10n-id'))
|
|
l10nElements.push(nodes[i]);
|
|
}
|
|
return l10nElements;
|
|
};
|
|
|
|
getL10nResourceLinks = function() {
|
|
var links = document.getElementsByTagName('link'),
|
|
l10nLinks = [],
|
|
n = links.length;
|
|
for (var i = 0; i < n; i++) {
|
|
if (links[i].type == 'application/l10n')
|
|
l10nLinks.push(links[i]);
|
|
}
|
|
return l10nLinks;
|
|
};
|
|
}
|
|
|
|
// fire non-standard `localized' DOM events
|
|
if (document.createEventObject && !document.createEvent) {
|
|
fireL10nReadyEvent = function(lang) {
|
|
// hack to simulate a custom event in IE:
|
|
// to catch this event, add an event handler to `onpropertychange'
|
|
document.documentElement.localized = 1;
|
|
};
|
|
}
|
|
|
|
// startup for IE<9
|
|
window.attachEvent('onload', function() {
|
|
gTextProp = document.body.textContent ? 'textContent' : 'innerText';
|
|
var lang = document.documentElement.lang || navigator.language || navigator.userLanguage || 'en';
|
|
loadLocale(lang, translateFragment);
|
|
});
|
|
}
|
|
|
|
// cross-browser API (sorry, oldIE doesn't support getters & setters)
|
|
return {
|
|
// get a localized string
|
|
get: function(key, args, fallback) {
|
|
var data = getL10nData(key, args) || fallback;
|
|
if (data) { // XXX double-check this
|
|
return 'textContent' in data ? data.textContent : '';
|
|
}
|
|
return '{{' + key + '}}';
|
|
},
|
|
|
|
// debug
|
|
getData: function() { return gL10nData; },
|
|
getText: function() { return gTextData; },
|
|
|
|
// get|set the document language
|
|
getLanguage: function() { return gLanguage; },
|
|
setLanguage: function(lang) { loadLocale(lang, translateFragment); },
|
|
|
|
// get the direction (ltr|rtl) of the current language
|
|
getDirection: function() {
|
|
// http://www.w3.org/International/questions/qa-scripts
|
|
// Arabic, Hebrew, Farsi, Pashto, Urdu
|
|
var rtlList = ['ar', 'he', 'fa', 'ps', 'ur'];
|
|
return (rtlList.indexOf(gLanguage) >= 0) ? 'rtl' : 'ltr';
|
|
},
|
|
|
|
// translate an element or document fragment
|
|
translate: translateFragment,
|
|
|
|
// this can be used to prevent race conditions
|
|
getReadyState: function() { return gReadyState; }
|
|
};
|
|
|
|
}) (window, document);
|
|
|
|
// gettext-like shortcut for navigator.webL10n.get
|
|
if (window._ === undefined)
|
|
var _ = document.webL10n.get;
|
|
|
|
// CommonJS
|
|
try {
|
|
exports = document.webL10n;
|
|
}catch(e){} |