Bug 675252 - Store buildid when locales are installed and make sure it is current on startup. r=mfinkle

mobile/app/mobile.js

@@ -217,6 +217,7 @@ pref("extensions.getAddons.get.url", "https://services.addons.mozilla.org/%LOCAL
 
 /* preference for the locale picker */
 pref("extensions.getLocales.get.url", "");
+pref("extensions.compatability.locales.buildid", "0");
 
 /* blocklist preferences */
 pref("extensions.blocklist.enabled", true);

mobile/chrome/content/localePicker.js

@@ -214,6 +214,8 @@ let LocaleUI = {
   },
 
   closeWindow : function() {
+    var buildID =  Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULAppInfo).platformBuildID;
+    Services.prefs.setCharPref("extensions.compatability.locales.buildid", buildID);
     // Trying to close this window and open a new one results in a corrupt UI.
     if (LocaleUI._currentInstall) {
       // a new locale was installed, restart the browser

mobile/components/BrowserCLH.js

@@ -126,6 +126,12 @@ function haveSystemLocale() {
 
 function checkCurrentLocale() {
   if (Services.prefs.prefHasUserValue("general.useragent.locale")) {
+    // if the user has a compatable locale from a different buildid, we need to update
+    var buildID = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULAppInfo).appBuildID;
+    let localeBuildID = Services.prefs.getCharPref("extensions.compatability.locales.buildid");
+    if (buildID != localeBuildID)
+      return false;
+
     let currentLocale = Services.prefs.getCharPref("general.useragent.locale");
     return isLocaleAvailable(currentLocale);
   }
@@ -239,7 +245,7 @@ BrowserCLH.prototype = {
           uris = uris.slice(1);
         }
 
-        // Show the locale selector if we have a new profile
+        // Show the locale selector if we have a new profile, or if the selected locale is no longer compatible
         let showLocalePicker = Services.prefs.getBoolPref("browser.firstrun.show.localepicker")
         if ((needHomepageOverride() == "new profile" && showLocalePicker && !haveSystemLocale()) || !checkCurrentLocale()) {
           browserWin = openWindow(null, "chrome://browser/content/localePicker.xul", "_blank", "chrome,dialog=no,all", defaultURL);

mobile/components/UpdatePrompt.js

@@ -238,6 +238,9 @@ UpdatePrompt.prototype = {
           aLocale.addon.install.install();
         }
       }, this);
+      // store the buildid of these locales so that we can disable locales when the
+      // user updates through a non-updater channel
+      Services.prefs.setCharPref("extensions.compatability.locales.buildid", aUpdate.buildID);
     }).bind(this), { buildID: aUpdate.buildID });
   },