gecko-dev/toolkit/content/charsetOverlay.js

268 строки
8.0 KiB
JavaScript

/* 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/. */
function MultiplexHandler(aEvent)
{
MultiplexHandlerEx(
aEvent,
function Browser_SelectDetector(event) {
BrowserCharsetReload();
/* window.content.location.reload() will re-download everything */
SelectDetector(event, null);
},
function Browser_SetForcedCharset(charset, isPredefined) {
BrowserSetForcedCharacterSet(charset);
}
);
}
function MailMultiplexHandler(aEvent)
{
MultiplexHandlerEx(
aEvent,
function Mail_SelectDetector(event) {
SelectDetector(
event,
function Mail_Reload() {
messenger.setDocumentCharset(msgWindow.mailCharacterSet);
}
);
},
function Mail_SetForcedCharset(charset, isPredefined) {
MessengerSetForcedCharacterSet(charset);
}
);
}
function ComposerMultiplexHandler(aEvent)
{
MultiplexHandlerEx(
aEvent,
function Composer_SelectDetector(event) {
SelectDetector(
event,
function Composer_Reload() {
EditorLoadUrl(GetDocumentUrl());
}
);
},
function Composer_SetForcedCharset(charset, isPredefined) {
if ((!isPredefined) && charset.length > 0) {
gCharsetMenu.SetCurrentComposerCharset(charset);
}
EditorSetDocumentCharacterSet(charset);
}
);
}
function MultiplexHandlerEx(aEvent, aSelectDetector, aSetForcedCharset)
{
try {
var node = aEvent.target;
var name = node.getAttribute('name');
if (name == 'detectorGroup') {
aSelectDetector(aEvent);
} else if (name == 'charsetGroup') {
var charset = node.getAttribute('id');
charset = charset.substring('charset.'.length, charset.length)
aSetForcedCharset(charset, true);
} else if (name == 'charsetCustomize') {
//do nothing - please remove this else statement, once the charset prefs moves to the pref window
} else {
aSetForcedCharset(node.getAttribute('id'), false);
}
} catch(ex) {
alert(ex);
}
}
function SelectDetector(event, doReload)
{
dump("Charset Detector menu item pressed: " + event.target.getAttribute('id') + "\n");
var uri = event.target.getAttribute("id");
var prefvalue = uri.substring('chardet.'.length, uri.length);
if ("off" == prefvalue) { // "off" is special value to turn off the detectors
prefvalue = "";
}
try {
var pref = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
var str = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(Components.interfaces.nsISupportsString);
str.data = prefvalue;
pref.setComplexValue("intl.charset.detector",
Components.interfaces.nsISupportsString, str);
if (typeof doReload == "function") doReload();
}
catch (ex) {
dump("Failed to set the intl.charset.detector preference.\n");
}
}
var gPrevCharset = null;
function UpdateCurrentCharset()
{
// extract the charset from DOM
var wnd = document.commandDispatcher.focusedWindow;
if ((window == wnd) || (wnd == null)) wnd = window.content;
// Uncheck previous item
if (gPrevCharset) {
var pref_item = document.getElementById('charset.' + gPrevCharset);
if (pref_item)
pref_item.setAttribute('checked', 'false');
}
var menuitem = document.getElementById('charset.' + wnd.document.characterSet);
if (menuitem) {
menuitem.setAttribute('checked', 'true');
}
}
function UpdateCurrentMailCharset()
{
var charset = msgWindow.mailCharacterSet;
var menuitem = document.getElementById('charset.' + charset);
if (menuitem) {
menuitem.setAttribute('checked', 'true');
}
}
function UpdateCharsetDetector()
{
var prefvalue;
try {
var pref = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch);
prefvalue = pref.getComplexValue("intl.charset.detector",
Components.interfaces.nsIPrefLocalizedString).data;
}
catch (ex) {
prefvalue = "";
}
if (prefvalue == "") prefvalue = "off";
dump("intl.charset.detector = "+ prefvalue + "\n");
prefvalue = 'chardet.' + prefvalue;
var menuitem = document.getElementById(prefvalue);
if (menuitem) {
menuitem.setAttribute('checked', 'true');
}
}
function UpdateMenus(event)
{
// use setTimeout workaround to delay checkmark the menu
// when onmenucomplete is ready then use it instead of oncreate
// see bug 78290 for the detail
UpdateCurrentCharset();
setTimeout(UpdateCurrentCharset, 0);
UpdateCharsetDetector();
setTimeout(UpdateCharsetDetector, 0);
}
function CreateMenu(node)
{
var observerService = Components.classes["@mozilla.org/observer-service;1"].getService(Components.interfaces.nsIObserverService);
observerService.notifyObservers(null, "charsetmenu-selected", node);
}
function UpdateMailMenus(event)
{
// use setTimeout workaround to delay checkmark the menu
// when onmenucomplete is ready then use it instead of oncreate
// see bug 78290 for the detail
UpdateCurrentMailCharset();
setTimeout(UpdateCurrentMailCharset, 0);
UpdateCharsetDetector();
setTimeout(UpdateCharsetDetector, 0);
}
var gCharsetMenu = Components.classes['@mozilla.org/rdf/datasource;1?name=charset-menu'].getService().QueryInterface(Components.interfaces.nsICurrentCharsetListener);
var gLastBrowserCharset = null;
function charsetLoadListener (event)
{
var charset = window.content.document.characterSet;
if (charset.length > 0 && (charset != gLastBrowserCharset)) {
gCharsetMenu.SetCurrentCharset(charset);
gPrevCharset = gLastBrowserCharset;
gLastBrowserCharset = charset;
}
}
function composercharsetLoadListener (event)
{
var charset = window.content.document.characterSet;
if (charset.length > 0 ) {
gCharsetMenu.SetCurrentComposerCharset(charset);
}
}
function SetForcedEditorCharset(charset)
{
if (charset.length > 0 ) {
gCharsetMenu.SetCurrentComposerCharset(charset);
}
EditorSetDocumentCharacterSet(charset);
}
var gLastMailCharset = null;
function mailCharsetLoadListener (event)
{
if (msgWindow) {
var charset = msgWindow.mailCharacterSet;
if (charset.length > 0 && (charset != gLastMailCharset)) {
gCharsetMenu.SetCurrentMailCharset(charset);
gLastMailCharset = charset;
}
}
}
function InitCharsetMenu()
{
removeEventListener("load", InitCharsetMenu, true);
var wintype = document.documentElement.getAttribute('windowtype');
if (window && (wintype == "navigator:browser"))
{
var contentArea = window.document.getElementById("appcontent");
if (contentArea)
contentArea.addEventListener("pageshow", charsetLoadListener, true);
}
else
{
var arrayOfStrings = wintype.split(":");
if (window && arrayOfStrings[0] == "mail")
{
var messageContent = window.document.getElementById("messagepane");
if (messageContent)
messageContent.addEventListener("pageshow", mailCharsetLoadListener, true);
}
else
if (window && arrayOfStrings[0] == "composer")
{
contentArea = window.document.getElementById("appcontent");
if (contentArea)
contentArea.addEventListener("pageshow", composercharsetLoadListener, true);
}
}
}
addEventListener("load", InitCharsetMenu, true);