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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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
var gActiveLanguages;
var gLanguages;
var gLanguageNames = [];
var gLanguageTitles = {};
function Startup()
{
gActiveLanguages = document.getElementById("activeLanguages");
// gLanguages stores the ordered list of languages, due to the nature
// of childNodes it is live and updates automatically.
gLanguages = gActiveLanguages.childNodes;
ReadAvailableLanguages();
}
function AddLanguage()
{
document.documentElement.openSubDialog("chrome://communicator/content/pref/pref-languages-add.xul", "addlangwindow", gLanguageNames);
}
function ReadAvailableLanguages()
{
var i = 0;
var languagesBundle = document.getElementById("languageNamesBundle");
var prefLangBundle = document.getElementById("prefLangBundle");
var regionsBundle = document.getElementById("regionNamesBundle");
var langStrings = document.getElementById("acceptedBundle").strings;
while (langStrings.hasMoreElements())
{
// Progress through the bundle.
var curItem = langStrings.getNext();
if (!(curItem instanceof Ci.nsIPropertyElement))
break;
var stringNameProperty = curItem.key.split('.');
var str = stringNameProperty[0];
if (str && stringNameProperty[1] == 'accept')
{
var stringLangRegion = str.split('-');
if (stringLangRegion[0])
{
var language = "";
var region = null;
try
{
language = languagesBundle.getString(stringLangRegion[0]);
}
catch (ex) {}
if (stringLangRegion.length > 1)
{
try
{
region = regionsBundle.getString(stringLangRegion[1]);
}
catch (ex) {}
}
var title;
if (region)
title = prefLangBundle.getFormattedString("languageRegionCodeFormat",
[language, region, str]);
else
title = prefLangBundle.getFormattedString("languageCodeFormat",
[language, str]);
gLanguageTitles[str] = title;
if (curItem.value == "true")
gLanguageNames.push([title, str]);
}
}
}
// Sort on first element.
gLanguageNames.sort(
function compareFn(a, b)
{
return a[0].localeCompare(b[0]);
}
);
}
function ReadActiveLanguages()
{
var arrayOfPrefs = document.getElementById("intl.accept_languages").value
.toLowerCase().split(/\s*,\s*/);
// No need to rebuild listitems if languages in prefs and listitems match.
if (InSync(arrayOfPrefs))
return;
while (gActiveLanguages.hasChildNodes())
gActiveLanguages.lastChild.remove();
arrayOfPrefs.forEach(
function(aKey)
{
if (aKey)
{
let langTitle = gLanguageTitles.hasOwnProperty(aKey) ?
gLanguageTitles[aKey] : "[" + aKey + "]";
gActiveLanguages.appendItem(langTitle, aKey);
}
}
);
SelectLanguage();
return;
}
// Checks whether listitems and pref values matches, returns false if not.
function InSync(aPrefArray)
{
// Can't match if they don't have the same length.
if (aPrefArray.length != gLanguages.length)
return false;
return aPrefArray.every(
function(aElement, aIndex)
{
return aElement == gLanguages[aIndex].value;
}
);
}
// Called on onsynctopreference.
function WriteActiveLanguages()
{
return Array.from(gLanguages, e => e.value).join(",");
}
function MoveUp()
{
var selected = gActiveLanguages.selectedItem;
var before = selected.previousSibling;
if (before)
{
before.parentNode.insertBefore(selected, before);
gActiveLanguages.selectItem(selected);
gActiveLanguages.ensureElementIsVisible(selected);
}
SelectLanguage();
gActiveLanguages.doCommand();
}
function MoveDown()
{
var selected = gActiveLanguages.selectedItem;
if (selected.nextSibling)
{
var before = selected.nextSibling.nextSibling;
gActiveLanguages.insertBefore(selected, before);
gActiveLanguages.selectItem(selected);
}
SelectLanguage();
gActiveLanguages.doCommand();
}
function RemoveActiveLanguage(aEvent)
{
if (aEvent && aEvent.keyCode != aEvent.DOM_VK_DELETE &&
aEvent.keyCode != aEvent.DOM_VK_BACK_SPACE)
return;
var nextNode = null;
while (gActiveLanguages.selectedItem)
{
var selectedNode = gActiveLanguages.selectedItem;
nextNode = selectedNode.nextSibling || selectedNode.previousSibling;
selectedNode.remove();
}
if (nextNode)
gActiveLanguages.selectItem(nextNode);
SelectLanguage();
gActiveLanguages.doCommand();
}
function SelectLanguage()
{
var len = gActiveLanguages.selectedItems.length;
EnableElementById("langRemove", len, false);
var selected = gActiveLanguages.selectedItem;
EnableElementById("langDown", (len == 1) && selected.nextSibling, false);
EnableElementById("langUp", (len == 1) && selected.previousSibling, false);
}
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