extension/packages/prefs.coffee

   1 { classes: Cc, interfaces: Ci } = Components
   2
   3 { unload } = require 'unload'
   4
   5 PREF_BRANCH = 'extensions.VimFx.'
   6
   7 # Default values for preferences are now specified in
   8 # defaults/preferences/defaults.js
   9
  10 getBranchPref = (branch, key, defaultValue) ->
  11   type = branch.getPrefType(key)
  12
  13   switch type
  14     when branch.PREF_BOOL
  15       return branch.getBoolPref(key)
  16     when branch.PREF_INT
  17       return branch.getIntPref(key)
  18     when branch.PREF_STRING
  19       return branch.getCharPref(key)
  20     else
  21       if defaultValue != undefined
  22         return defaultValue
  23
  24 isPrefSet = do ->
  25   prefs = Cc['@mozilla.org/preferences-service;1'].getService(Ci.nsIPrefService)
  26   branch = prefs.getBranch(PREF_BRANCH)
  27
  28   return (key) ->
  29     branch.prefHasUserValue(key)
  30
  31 getPref = do ->
  32   prefs = Cc['@mozilla.org/preferences-service;1'].getService(Ci.nsIPrefService)
  33   branch = prefs.getBranch(PREF_BRANCH)
  34
  35   return (key, defaultValue = undefined) ->
  36     return getBranchPref(branch, key, defaultValue)
  37
  38 # Unicode String
  39 getComplexPref = do ->
  40   prefs = Cc['@mozilla.org/preferences-service;1'].getService(Ci.nsIPrefService)
  41   branch = prefs.getBranch(PREF_BRANCH)
  42
  43   return (key) ->
  44     return branch.getComplexValue(key, Ci.nsISupportsString).data
  45
  46 getFirefoxPref = do ->
  47   prefs = Cc['@mozilla.org/preferences-service;1'].getService(Ci.nsIPrefService)
  48   branch = prefs.getBranch('')
  49
  50   return (key, defaultValue = undefined) ->
  51     return getBranchPref(branch, key, defaultValue)
  52
  53 # Assign and save Firefox preference value
  54 setPref = do ->
  55   prefs = Cc['@mozilla.org/preferences-service;1'].getService(Ci.nsIPrefService)
  56   branch = prefs.getBranch(PREF_BRANCH)
  57
  58   return (key, value) ->
  59     switch typeof value
  60       when 'boolean'
  61         branch.setBoolPref(key, value)
  62       when 'number'
  63         branch.setIntPref(key, value)
  64       when 'string'
  65         branch.setCharPref(key, value)
  66       else
  67         branch.clearUserPref(key)
  68
  69 exports.isPrefSet         = isPrefSet
  70 exports.getPref           = getPref
  71 exports.getComplexPref    = getComplexPref
  72 exports.getFirefoxPref    = getFirefoxPref
  73 exports.setPref           = setPref