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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
var gLanguageNames;
var gAvailableLanguages;
var gOtherLanguages;
var gSelectedLanguages = [];
var gInvalidLanguages;
function OnLoadAddLanguages()
{
gLanguageNames = window.arguments[0];
gAvailableLanguages = document.getElementById("availableLanguages");
gSelectedLanguages = document.getElementById("intl.accept_languages").value
.toLowerCase().split(/\s*,\s*/);
gOtherLanguages = document.getElementById("otherLanguages");
if (gLanguageNames)
{
for (var i = 0; i < gLanguageNames.length; i++)
{
if (!gSelectedLanguages.includes(gLanguageNames[i][1]))
gAvailableLanguages.appendItem(gLanguageNames[i][0],
gLanguageNames[i][1]);
}
}
}
function IsRFC1766LangTag(aCandidate)
{
/* reject bogus lang strings, INCLUDING those with HTTP "q"
values kludged on the end of them
Valid language codes examples:
i.e. ja-JP-kansai (Kansai dialect of Japanese)
en-US-texas (Texas dialect)
i-klingon-tng (did TOS Klingons speak in non-English?)
sgn-US-MA (Martha Vineyard's Sign Language)
*/
var tags = aCandidate.split('-');
var checkedTags = 0;
if (/^[ix]$/.test(tags[0]))
{
if (tags.length < 2)
return false;
checkedTags++;
}
else
/* if not IANA "i" or a private "x" extension, the primary
tag should be a ISO 639 country code, two or three letters long.
we don't check if the country code is bogus or not.
*/
{
if (!/^[a-z]{2,3}$/.test(tags[0]))
return false;
checkedTags++;
/* the first subtag can be either a 2 letter ISO 3166 country code,
or an IANA registered tag from 3 to 8 characters.
*/
if (tags.length > 1)
{
if (!/^[a-z0-9]{2,8}$/.test(tags[1]))
return false;
/* do not allow user-assigned ISO 3166 country codes */
if (/^(aa|zz|x[a-z]|q[m-z])$/.test(tags[1]))
return false;
checkedTags++;
}
}
/* any remaining subtags must be one to eight alphabetic characters */
while (checkedTags < tags.length)
{
if (!/^[a-z0-9]{1,8}$/.test(tags[checkedTags]))
return false;
checkedTags++;
}
return true;
}
function WriteAddedLanguages(aListbox)
{
var invalidLangs = [];
// selected languages
var languages = aListbox.selectedItems;
var addedLang = Array.from(languages, e => e.value);
// user-defined languages
languages = gOtherLanguages.value;
if (languages)
{
let languageIds = languages.replace(/\s+/g, "").toLowerCase().split(",");
for (var i = 0; i < languageIds.length; i++)
{
let languageId = languageIds[i];
if (IsRFC1766LangTag(languageId))
{
if (!addedLang.includes(languageId) &&
!gSelectedLanguages.includes(languageId))
addedLang.push(languageId);
}
else
{
invalidLangs.push(languageId);
}
}
}
if (invalidLangs.length)
gInvalidLanguages = invalidLangs.join(", ");
else
gSelectedLanguages = gSelectedLanguages.concat(addedLang);
return gSelectedLanguages.join(",");
}
function OnAccept()
{
if (!gInvalidLanguages)
return true;
let prefLangBundle = document.getElementById("prefLangAddBundle");
const kErrorMsg = prefLangBundle.getString("illegalOtherLanguage") + " " +
gInvalidLanguages;
const kErrorTitle = prefLangBundle.getString("illegalOtherLanguageTitle");
Services.prompt.alert(this.window, kErrorTitle, kErrorMsg);
gInvalidLanguages = null;
gOtherLanguages.focus();
return false;
}
function HandleDoubleClick()
{
document.documentElement.acceptDialog();
}
function DoBeforeAccept()
{
gAvailableLanguages.doCommand();
}