extension/packages/options.coffee

   1 { removeDuplicateCharacters } = require 'utils'
   2 { unload }   = require 'unload'
   3 { getPref }  = require 'prefs'
   4 help         = require 'help'
   5 { commands } = require 'commands'
   6
   7 observer =
   8   observe: (document, topic, addon) ->
   9     return unless addon == getPref('addon_id')
  10
  11     hintCharsInput = document.querySelector('setting[pref="extensions.VimFx.hint_chars"]')
  12
  13     customizeButton = document.getElementById('customizeButton')
  14     injectHelp = help.injectHelp.bind(undefined, document, commands)
  15
  16     switch topic
  17       when 'addon-options-displayed'
  18         hintCharsInput.addEventListener('change', filterChars, false)
  19         customizeButton.addEventListener('command', injectHelp, false)
  20       when 'addon-options-hidden'
  21         hintCharsInput.removeEventListener('change', filterChars, false)
  22         customizeButton.removeEventListener('command', injectHelp, false)
  23
  24 filterChars = (event) ->
  25   input = event.target
  26   input.value = removeDuplicateCharacters(input.value).replace(/\s/g, '')
  27   input.valueToPreference()
  28
  29 observe = ->
  30   Services.obs.addObserver(observer, 'addon-options-displayed', false)
  31   Services.obs.addObserver(observer, 'addon-options-hidden',    false)
  32
  33   unload ->
  34     Services.obs.removeObserver(observer, 'addon-options-displayed')
  35     Services.obs.removeObserver(observer, 'addon-options-hidden')
  36
  37 exports.observe = observe