extension/packages/l10n.coffee

   1 { classes: Cc, interfaces: Ci } = Components
   2
   3 # Generates the underscore function
   4 l10n = do ->
   5   splitter = /(\w+)-\w+/
   6
   7   # Current locale
   8   locale = Cc["@mozilla.org/chrome/chrome-registry;1"]
   9     .getService(Ci.nsIXULChromeRegistry).getSelectedLocale("global")
  10
  11   getStr = (aStrBundle, aKey) ->
  12     try return aStrBundle.GetStringFromName(aKey)
  13
  14   return (filename, defaultLocale="en-US") ->
  15
  16     filePath = (locale) ->
  17       getResourceURI("locale/#{ locale }/#{ filename }").spec
  18
  19     # Folder in the format `en-US`
  20     defaultBundle = Services.strings.createBundle filePath(locale)
  21
  22     if (locale_base = locale.match(splitter))
  23       # Folder in the basic format: `en`
  24       defaultBasicBundle = Services.strings.createBundle filePath(locale_base[1])
  25
  26     # Folder named after `defaultLocale`
  27     addonsDefaultBundle = Services.strings.createBundle filePath(defaultLocale)
  28
  29     # The underscore function
  30     l10n_underscore = (aKey, aLocale) ->
  31       localeBundle = null
  32       localeBasicBundle = null
  33
  34       # Yet another way to specify a folder
  35       if aLocale
  36         localeBundle = Services.strings.createBundle filePath(aLocale)
  37
  38         if locale_base = aLocale.match(splitter)
  39           localeBasicBundle = Services.strings.createBundle filePath(locale_base[1])
  40
  41       aVal = getStr(localeBundle, aKey) \
  42           or getStr(localeBasicBundle, aKey) \
  43           or (defaultBundle && (getStr(defaultBundle, aKey) or (defaultBundle = null))) \
  44           or (defaultBasicBundle && (getStr(defaultBasicBundle, aKey) or (defaultBasicBundle = null))) \
  45           or getStr(addonsDefaultBundle, aKey)
  46
  47       return aVal
  48
  49     unload Services.strings.flushBundles
  50
  51     return l10n_underscore
  52
  53 exports.l10n = l10n