extension/packages/l10n.coffee

   1 { classes: Cc, interfaces: Ci } = Components
   2
   3 PROPERTIES_FILE = 'vimfx.properties'
   4 DEFAULT_LOCALE = 'en-US'
   5
   6 utils = require 'utils'
   7 { unload } = require 'unload'
   8 { getFirefoxPref } = require 'prefs'
   9
  10 # Generates the underscore function
  11 l10n = do ->
  12   splitter = /(\w+)-\w+/
  13
  14   # Current locale
  15   locale = getFirefoxPref('general.useragent.locale')
  16
  17   getStr = (aStrBundle, aKey) ->
  18     try return aStrBundle.GetStringFromName(aKey)
  19
  20   filePath = (locale) ->
  21     utils.getResourceURI("locale/#{ locale }/#{ PROPERTIES_FILE }").spec
  22
  23   # Folder in the format `en-US`, e.g. locale/en-US/vimfx.properties
  24   defaultBundle = Services.strings.createBundle(filePath(locale))
  25
  26   if locale_base = locale.match(splitter)
  27     # Folder in the basic format: `en`, e.g. locale/en/vimfx.properties
  28     defaultBasicBundle = Services.strings.createBundle(filePath(locale_base[1]))
  29
  30   # Folder named after extension default locale
  31   addonsDefaultBundle = Services.strings.createBundle(filePath(DEFAULT_LOCALE))
  32
  33   # The underscore function
  34   l10n_underscore = (aKey, aLocale) ->
  35     localeBundle = null
  36     localeBasicBundle = null
  37
  38     # Yet another way to specify a folder: both `en` or `en-US` are possible here
  39     if aLocale
  40       localeBundle = Services.strings.createBundle(filePath(aLocale))
  41
  42       # And locale version without the region, e.g. `en`
  43       if locale_base = aLocale.match(splitter)
  44         localeBasicBundle = Services.strings.createBundle(filePath(locale_base[1]))
  45
  46     aVal = getStr(localeBundle, aKey) \
  47         or getStr(localeBasicBundle, aKey) \
  48         or (defaultBundle && (getStr(defaultBundle, aKey) or (defaultBundle = null))) \
  49         or (defaultBasicBundle && (getStr(defaultBasicBundle, aKey) or (defaultBasicBundle = null))) \
  50         or getStr(addonsDefaultBundle, aKey)
  51
  52     return aVal
  53
  54   unload(Services.strings.flushBundles)
  55
  56   return l10n_underscore
  57
  58 exports._ = l10n