extension/packages/l10n.coffee

   1 # Generates the underscore function
   2 l10n = do ->
   3   splitter = /(\w+)-\w+/
   4
   5   # Current locale
   6   locale = Cc["@mozilla.org/chrome/chrome-registry;1"]
   7     .getService(Ci.nsIXULChromeRegistry).getSelectedLocale("global")
   8
   9   getStr = (aStrBundle, aKey) -> try return aStrBundle.GetStringFromName(aKey);
  10
  11   return (filename, defaultLocale) ->
  12     defaultLocale ?= "en";
  13
  14     filePath = (locale) ->
  15       getResourceURI("locale/#{ locale }/#{ filename }").spec
  16
  17     # Folder in the format `en-US`
  18     defaultBundle = Services.strings.createBundle filePath(locale)
  19
  20     if (locale_base = locale.match(splitter))
  21       # Folder in the basic format: `en`
  22       defaultBasicBundle = Services.strings.createBundle filePath(locale_base[1])
  23
  24     # Folder named after `defaultLocale`
  25     addonsDefaultBundle = Services.strings.createBundle filePath(defaultLocale)
  26
  27     # The underscore function
  28     l10n_underscore = (aKey, aLocale) ->
  29       localeBundle = null
  30       localeBasicBundle = null
  31
  32       # Yet another way to specify a folder
  33       if aLocale
  34         localeBundle = Services.strings.createBundle filePath(aLocale)
  35
  36         if locale_base = aLocale.match(splitter)
  37           localeBasicBundle = Services.strings.createBundle filePath(locale_base[1])
  38
  39       aVal = getStr(localeBundle, aKey) \
  40           or getStr(localeBasicBundle, aKey) \
  41           or (defaultBundle && (getStr(defaultBundle, aKey) or (defaultBundle = null))) \
  42           or (defaultBasicBundle && (getStr(defaultBasicBundle, aKey) or (defaultBasicBundle = null))) \
  43           or getStr(addonsDefaultBundle, aKey)
  44
  45       return aVal
  46
  47     unload Services.strings.flushBundles
  48
  49     return l10n_underscore
  50
  51 exports.l10n = l10n