extension/packages/l10n.coffee

   1 { classes: Cc, interfaces: Ci } = Components
   2
   3 { getFirefoxPref } = require 'prefs'
   4
   5 # Generates the underscore function
   6 l10n = do ->
   7   splitter = /(\w+)-\w+/
   8
   9   # Current locale
  10   locale = getFirefoxPref('general.useragent.locale')
  11
  12   getStr = (aStrBundle, aKey) ->
  13     try return aStrBundle.GetStringFromName(aKey)
  14
  15   return (filename, defaultLocale = 'en-US') ->
  16
  17     filePath = (locale) ->
  18       getResourceURI("locale/#{ locale }/#{ filename }").spec
  19
  20     # Folder in the format `en-US`, e.g. locale/en-US/vimfx.properties
  21     defaultBundle = Services.strings.createBundle(filePath(locale))
  22
  23     if locale_base = locale.match(splitter)
  24       # Folder in the basic format: `en`, e.g. locale/en/vimfx.properties
  25       defaultBasicBundle = Services.strings.createBundle(filePath(locale_base[1]))
  26
  27     # Folder named after `defaultLocale`
  28     addonsDefaultBundle = Services.strings.createBundle(filePath(defaultLocale))
  29
  30     # The underscore function
  31     l10n_underscore = (aKey, aLocale) ->
  32       localeBundle = null
  33       localeBasicBundle = null
  34
  35       # Yet another way to specify a folder: both `en` or `en-US` are possible here
  36       if aLocale
  37         localeBundle = Services.strings.createBundle(filePath(aLocale))
  38
  39         # And locale version without the region, e.g. `en`
  40         if locale_base = aLocale.match(splitter)
  41           localeBasicBundle = Services.strings.createBundle(filePath(locale_base[1]))
  42
  43       aVal = getStr(localeBundle, aKey) \
  44           or getStr(localeBasicBundle, aKey) \
  45           or (defaultBundle && (getStr(defaultBundle, aKey) or (defaultBundle = null))) \
  46           or (defaultBasicBundle && (getStr(defaultBasicBundle, aKey) or (defaultBasicBundle = null))) \
  47           or getStr(addonsDefaultBundle, aKey)
  48
  49       return aVal
  50
  51     unload(Services.strings.flushBundles)
  52
  53     return l10n_underscore
  54
  55 exports.l10n = l10n