extension/packages/prefs.coffee

   1 { classes: Cc, interfaces: Ci } = Components
   2
   3 PREF_BRANCH = "extensions.VimFx.";
   4
   5 # Default values for the preference
   6 # All used preferences should be mentioned here becuase
   7 # preference type is derived from here
   8 DEFAULT_PREF_VALUES =
   9   addon_id:       'VimFx@akhodakivskiy.github.com'
  10   hint_chars:     'asdfgercvhjkl;uinm'
  11   disabled:       false
  12   scroll_step:    60
  13   scroll_time:    100
  14   black_list:     '*mail.google.com*'
  15   blur_on_esc:    true
  16   leave_dt_on_esc: false
  17
  18 getBranchPref = (branch, key, defaultValue) ->
  19   type = branch.getPrefType(key)
  20
  21   switch type
  22     when branch.PREF_BOOL
  23       return branch.getBoolPref key
  24     when branch.PREF_INT
  25       return branch.getIntPref key
  26     when branch.PREF_STRING
  27       return branch.getCharPref key
  28     else
  29       if defaultValue != undefined
  30         return defaultValue
  31
  32 getPref = do ->
  33   prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService)
  34   branch = prefs.getBranch PREF_BRANCH
  35
  36   return (key, defaultValue=undefined) ->
  37     value = getBranchPref branch, key, defaultValue
  38     return if value == undefined then DEFAULT_PREF_VALUES[key] else value
  39
  40 getFirefoxPref = do ->
  41   prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService)
  42   branch = prefs.getBranch ''
  43
  44   return (key, defaultValue=undefined) ->
  45     return getBranchPref branch, key, defaultValue
  46
  47 # Assign and save Firefox preference value
  48 setPref = do ->
  49   prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefService)
  50   branch = prefs.getBranch PREF_BRANCH
  51
  52   return (key, value) ->
  53     switch typeof value
  54       when 'boolean'
  55         branch.setBoolPref(key, value)
  56       when 'number'
  57         branch.setIntPref(key, value)
  58       when 'string'
  59         branch.setCharPref(key, value);
  60       else
  61         branch.clearUserPref(key);
  62
  63 DISABLED_COMMANDS = do ->
  64   str = getPref 'disabled_commands'
  65   try
  66     return JSON.parse str
  67   catch err
  68     dc = []
  69     try
  70       for key in str.split('||')
  71         for c in key.split('|')
  72           dc.push c if c
  73
  74     return dc
  75
  76 # Enables command
  77 enableCommand = (key) ->
  78   for c in key.split('|')
  79     while (idx = DISABLED_COMMANDS.indexOf(c)) > -1
  80       DISABLED_COMMANDS.splice(idx, 1)
  81
  82   setPref 'disabled_commands', JSON.stringify DISABLED_COMMANDS
  83
  84 # Adds command to the disabled list
  85 disableCommand = (key) ->
  86   for c in key.split('|')
  87     if DISABLED_COMMANDS.indexOf(c) == -1
  88       DISABLED_COMMANDS.push c
  89
  90   setPref 'disabled_commands', JSON.stringify DISABLED_COMMANDS
  91
  92 # Checks if given command is disabled in the preferences
  93 isCommandDisabled = (key) ->
  94   for c in key.split('|')
  95     if DISABLED_COMMANDS.indexOf(c) > -1
  96       return true
  97
  98   return false
  99
 100 exports.getPref                   = getPref
 101 exports.getFirefoxPref            = getFirefoxPref
 102 exports.setPref                   = setPref
 103 exports.isCommandDisabled         = isCommandDisabled
 104 exports.disableCommand            = disableCommand
 105 exports.enableCommand             = enableCommand