RetroZilla/xpfe/components/prefwindow/resources/content/pref-languages.js
2015-10-20 23:03:22 -04:00

632 lines
17 KiB
JavaScript

/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Adrian Havill <havill@redhat.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
//GLOBALS
//locale bundles
var regionsBundle;
var languagesBundle;
var acceptedBundle;
var prefLangBundle;
//dictionary of all supported locales
var availLanguageDict;
//XUL listbox handles
var available_languages;
var active_languages;
//XUL window pref window interface object
var pref_string = new String();
//Reg expression for splitting multiple pref values
var separatorRe = /\s*,\s*/;
function GetBundles()
{
if (!regionsBundle) regionsBundle = srGetStrBundle("chrome://global/locale/regionNames.properties");
if (!languagesBundle) languagesBundle = srGetStrBundle("chrome://global/locale/languageNames.properties");
if (!prefLangBundle) prefLangBundle = srGetStrBundle("chrome://communicator/locale/pref/pref-languages.properties");
if (!acceptedBundle) acceptedBundle = srGetStrBundle("resource://gre/res/language.properties");
}
function Init()
{
try {
GetBundles();
}
catch(ex) {
}
ReadAvailableLanguages();
if (!("arguments" in window)) {
//no caller arguments - load base window
try {
active_languages = document.getElementById('active_languages');
} //try
catch(ex) {
} //catch
try {
parent.initPanel('chrome://communicator/content/pref/pref-languages.xul');
}
catch(ex) {
//pref service backup
} //catch
pref_string = active_languages.getAttribute("prefvalue");
LoadActiveLanguages();
SelectLanguage();
} else {
//load available languages popup
try {
//add language popup
available_languages = document.getElementById('available_languages');
active_languages = window.opener.document.getElementById('active_languages');
pref_string = window.opener.document.getElementById('intlAcceptLanguages').label;
} //try
catch(ex) {
} //catch
LoadAvailableLanguages();
}
}
function AddLanguage()
{
//cludge: make pref string available from the popup
document.getElementById('intlAcceptLanguages').label = pref_string;
window.openDialog("chrome://communicator/content/pref/pref-languages-add.xul","_blank","modal,chrome,centerscreen,titlebar", "addlangwindow");
UpdateSavePrefString();
SelectLanguage();
}
function ReadAvailableLanguages()
{
availLanguageDict = new Array();
var visible = new String();
var str = new String();
var i =0;
var acceptedBundleEnum = acceptedBundle.getSimpleEnumeration();
var curItem;
var stringName;
var stringNameProperty;
while (acceptedBundleEnum.hasMoreElements()) {
//progress through the bundle
curItem = acceptedBundleEnum.getNext();
//"unpack" the item, nsIPropertyElement is now partially scriptable
curItem = curItem.QueryInterface(Components.interfaces.nsIPropertyElement);
//dump string name (key)
stringName = curItem.key;
stringNameProperty = stringName.split('.');
if (stringNameProperty[1] == 'accept') {
//dump the UI string (value)
visible = curItem.value;
//if (visible == 'true') {
str = stringNameProperty[0];
var stringLangRegion = stringNameProperty[0].split('-');
if (stringLangRegion[0]) {
var tit;
var language;
var region;
var use_region_format = false;
try {
language = languagesBundle.GetStringFromName(stringLangRegion[0]);
}
catch (ex) {
language = "";
}
if (stringLangRegion.length > 1) {
try {
region = regionsBundle.GetStringFromName(stringLangRegion[1]);
use_region_format = true;
}
catch (ex) {
}
}
if (use_region_format) {
tit = prefLangBundle.formatStringFromName("languageRegionCodeFormat",
[language, region, str], 3);
} else {
tit = prefLangBundle.formatStringFromName("languageCodeFormat",
[language, str], 2);
}
} //if language
if (str && tit) {
availLanguageDict[i] = new Array(3);
availLanguageDict[i][0] = tit;
availLanguageDict[i][1] = str;
availLanguageDict[i][2] = visible;
i++;
} // if str&tit
//} //if visible
} //if accepted
} //while
availLanguageDict.sort( // sort on first element
function compareFn(a, b) {
return a[0].localeCompare(b[0]);
});
}
function LoadAvailableLanguages()
{
if (availLanguageDict)
for (var i = 0; i < availLanguageDict.length; i++) {
if (availLanguageDict[i][2] == 'true') {
AddListItem(document, available_languages, availLanguageDict[i][1], availLanguageDict[i][0]);
} //if
} //for
}
function LoadActiveLanguages()
{
if (pref_string) {
var arrayOfPrefs = pref_string.split(separatorRe);
for (var i = 0; i < arrayOfPrefs.length; i++) {
var str = arrayOfPrefs[i];
var tit = GetLanguageTitle(str);
if (str) {
if (!tit)
tit = '[' + str + ']';
AddListItem(document, active_languages, str, tit);
} //if
} //for
}
}
function LangAlreadyActive(langId)
{
var found = false;
try {
var arrayOfPrefs = pref_string.split(separatorRe);
if (arrayOfPrefs)
for (var i = 0; i < arrayOfPrefs.length; i++) {
if (arrayOfPrefs[i] == langId) {
found = true;
break;
}
}
return found;
}
catch(ex){
return false;
}
}
function isAlpha(mixedCase) {
var allCaps = mixedCase.toUpperCase();
for (var i = allCaps.length - 1; i >= 0; i--) {
var c = allCaps.charAt(i);
if (c < 'A' || c > 'Z') return false;
}
return true;
}
function isAlphaNum(mixedCase) {
var allCaps = mixedCase.toUpperCase();
for (var i = allCaps.length - 1; i >= 0; i--) {
var c = allCaps.charAt(i);
if ((c < 'A' || c > 'Z') && (c < '0' || c > '9')) return false;
}
return true;
}
function IsRFC1766LangTag(candidate) {
/* 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 = candidate.split('-');
/* 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.
*/
var checkedTags = 0;
if (tags[0].toLowerCase() != "x" && tags[0].toLowerCase() != "i") {
if (tags[0].length != 2 && tags[0].length != 3) return false;
if (!isAlpha(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 (tags[1].length < 2 || tags[1].length > 8) return false;
if (!isAlphaNum(tags[1])) return false;
/* do not allow user-assigned ISO 3166 country codes */
if (tags[1].length == 2 && isAlpha(tags[1])) {
var countryCode = tags[1].toUpperCase();
if (countryCode == "AA" || countryCode == "ZZ") return false;
if (countryCode[0] == 'X') return false;
if (countryCode[0] == 'Q' && countryCode[1] > 'L') return false;
}
checkedTags++;
}
}
else if (tags.length < 2) return false;
else {
if ((tags[1].length < 1) || (tags[1].length > 8)) return false;
if (!isAlphaNum(tags[1])) return false;
checkedTags++;
}
/* any remaining subtags must be one to eight alphabetic characters */
for (var i = checkedTags; i < tags.length; i++) {
if ((tags[1].length < 1) || (tags[i].length > 8)) return false;
if (!isAlphaNum(tags[i])) return false;
checkedTags++;
}
return true;
}
function AddAvailableLanguage()
{
var Languagename = new String();
var Languageid = new String();
var addThese = new Array();
var addTheseNames = new Array();
var invalidLangs = new Array();
//selected languages
for (var nodeIndex=0; nodeIndex < available_languages.selectedItems.length; nodeIndex++) {
var selItem = available_languages.selectedItems[nodeIndex];
Languagename = selItem.getAttribute('label');
Languageid = selItem.getAttribute('id');
if (!LangAlreadyActive(Languageid)) {
addThese[nodeIndex] = Languageid;
addTheseNames[nodeIndex] = Languagename;
}
}
//user-defined languages
var otherField = document.getElementById( "languages.other" );
var selCount = addThese.length;
if (otherField.value) {
var LanguageidsString = otherField.value.replace(/\s/g,"").toLowerCase();
var Languageids = LanguageidsString.split(separatorRe);
for (var i = 0; i < Languageids.length; i++) {
Languageid = Languageids[i];
if (IsRFC1766LangTag(Languageid)) {
if (!LangAlreadySelected(Languageid)) {
if (!LangAlreadyActive(Languageid)) {
Languagename = GetLanguageTitle(Languageid);
if (!Languagename)
Languagename = '[' + Languageid + ']';
addThese[i+selCount] = Languageid;
addTheseNames[i+selCount] = Languagename;
}
}
}
else {
invalidLangs[invalidLangs.length] = Languageid;
}
}
if (invalidLangs.length > 0) {
var errorMsg = prefLangBundle.GetStringFromName("illegalOtherLanguage") + " " +
invalidLangs.join(", ");
var errorTitle = prefLangBundle.GetStringFromName("illegalOtherLanguageTitle");
var prompter = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
.getService(Components.interfaces.nsIPromptService);
prompter.alert(this.window, errorTitle, errorMsg);
otherField.focus();
return false;
}
}
for (i = 0; i < addThese.length; i++) {
AddListItem(window.opener.document, active_languages, addThese[i], addTheseNames[i]);
}
available_languages.clearSelection();
return true;
}
function LangAlreadySelected(langid) {
var found = false;
for (var i = 0; i < available_languages.selectedItems.length; i++) {
var currentLang = available_languages.selectedItems[i];
var Languageid = currentLang.getAttribute('id');
if (Languageid == langid)
return true;
}
return false;
}
function HandleDoubleClick(node)
{
var languageId = node.id;
var languageName = node.getAttribute('label');
if (languageName && languageName.length > 0)
{
if (!LangAlreadyActive(languageId)) {
AddListItem(window.opener.document, active_languages, languageId, languageName);
}
window.close();
}//if
} //HandleDoubleClick
function RemoveActiveLanguage()
{
var nextNode = null;
var numSelected = active_languages.selectedItems.length;
var deleted_all = false;
while (active_languages.selectedItems.length > 0) {
var selectedNode = active_languages.selectedItems[0];
nextNode = selectedNode.nextSibling;
if (!nextNode)
if (selectedNode.previousSibling)
nextNode = selectedNode.previousSibling;
active_languages.removeChild(selectedNode);
} //while
if (nextNode) {
active_languages.selectItem(nextNode)
} else {
//active_languages.clearSelection();
}
UpdateSavePrefString();
} //RemoveActiveLanguage
function GetLanguageTitle(id)
{
if (availLanguageDict)
for (var j = 0; j < availLanguageDict.length; j++) {
if ( availLanguageDict[j][1] == id) {
//title =
return availLanguageDict[j][0];
}
}
return '';
}
function AddListItem(doc, listbox, langID, langTitle)
{
try { //let's beef up our error handling for languages without label / title
// Create a listitem for the new Language
var item = doc.createElement('listitem');
// Copy over the attributes
item.setAttribute('label', langTitle);
item.setAttribute('id', langID);
listbox.appendChild(item);
} //try
catch (ex) {
} //catch
}
function UpdateSavePrefString()
{
var num_languages = 0;
pref_string = "";
for (var item = active_languages.firstChild; item != null; item = item.nextSibling) {
var languageid = item.getAttribute('id');
if (languageid.length > 1) {
num_languages++;
//separate >1 languages by commas
if (num_languages > 1) {
pref_string = pref_string + "," + " " + languageid;
} else {
pref_string = languageid;
} //if
} //if
}//for
active_languages.setAttribute("prefvalue", pref_string);
}
function MoveUp() {
if (active_languages.selectedItems.length == 1) {
var selected = active_languages.selectedItems[0];
var before = selected.previousSibling
if (before) {
before.parentNode.insertBefore(selected, before);
active_languages.selectItem(selected);
active_languages.ensureElementIsVisible(selected);
}
}
if (active_languages.selectedIndex == 0)
{
// selected item is first
var moveUp = document.getElementById("up");
moveUp.disabled = true;
}
if (active_languages.childNodes.length > 1)
{
// more than one item so we can move selected item back down
var moveDown = document.getElementById("down");
moveDown.disabled = false;
}
UpdateSavePrefString();
} //MoveUp
function MoveDown() {
if (active_languages.selectedItems.length == 1) {
var selected = active_languages.selectedItems[0];
if (selected.nextSibling) {
if (selected.nextSibling.nextSibling) {
active_languages.insertBefore(selected, selected.nextSibling.nextSibling);
}
else {
active_languages.appendChild(selected);
}
active_languages.selectItem(selected);
}
}
if (active_languages.selectedIndex == active_languages.childNodes.length - 1)
{
// selected item is last
var moveDown = document.getElementById("down");
moveDown.disabled = true;
}
if (active_languages.childNodes.length > 1)
{
// more than one item so we can move selected item back up
var moveUp = document.getElementById("up");
moveUp.disabled = false;
}
UpdateSavePrefString();
} //MoveDown
function SelectLanguage() {
if (active_languages.selectedItems.length) {
document.getElementById("remove").disabled = false;
var selected = active_languages.selectedItems[0];
document.getElementById("down").disabled = !selected.nextSibling;
document.getElementById("up").disabled = !selected.previousSibling;
}
else {
document.getElementById("remove").disabled = true;
document.getElementById("down").disabled = true;
document.getElementById("up").disabled = true;
}
if (parent.hPrefWindow.getPrefIsLocked(document.getElementById("up").getAttribute("prefstring")))
document.getElementById("up").disabled = true;
if (parent.hPrefWindow.getPrefIsLocked(document.getElementById("down").getAttribute("prefstring")))
document.getElementById("down").disabled = true;
if (parent.hPrefWindow.getPrefIsLocked(document.getElementById("add").getAttribute("prefstring")))
document.getElementById("add").disabled = true;
if (parent.hPrefWindow.getPrefIsLocked(document.getElementById("remove").getAttribute("prefstring")))
document.getElementById("remove").disabled = true;
} // SelectLanguage