packages/commands.coffee

   1 SCROLL_AMOUNT = 60
   2
   3 { classes: Cc, interfaces: Ci, utils: Cu } = Components
   4
   5 utils = require 'utils'
   6
   7 commands =
   8   'g,g': (window) ->
   9     window.scrollTo(0, 0)
  10
  11   'G': (window) ->
  12     window.scrollTo(0, window.document.body.scrollHeight)
  13
  14   'j': (window) ->
  15     window.scrollBy(0, SCROLL_AMOUNT)
  16
  17   'k': (window) ->
  18     window.scrollBy(0, -SCROLL_AMOUNT)
  19
  20   'd': (window) ->
  21     window.scrollBy(0, window.innerHeight)
  22
  23   'u': (window) ->
  24     window.scrollBy(0, -window.innerHeight)
  25
  26   'J': (window) ->
  27     if rootWindow = utils.getRootWindow window
  28       rootWindow.gBrowser.tabContainer.advanceSelectedTab(1, true);
  29
  30   'K': (window) ->
  31     if rootWindow = utils.getRootWindow window
  32       rootWindow.gBrowser.tabContainer.advanceSelectedTab(-1, true);
  33
  34   'x': (window) ->
  35     if rootWindow = utils.getRootWindow window
  36       rootWindow.gBrowser.removeCurrentTab()
  37
  38   'X': (window) ->
  39     if rootWindow = utils.getRootWindow window
  40       ss = utils.getSessionStore()
  41       if ss and ss.getClosedTabCount(rootWindow) > 0
  42         ss.undoCloseTab rootWindow, 0
  43
  44   'Esc': (window) ->
  45     window.document.activeElement?.blur()
  46
  47
  48 getCommand = (keys) ->
  49   sequence = [key.toString() for key in keys].join(',')
  50   if command = commands[sequence]
  51     return command
  52   else if keys.length > 0
  53     return getCommand keys.slice(1)
  54   else
  55     undefined
  56
  57 maybeCommand = (keys) ->
  58   if keys.length == 0
  59     return false
  60   else
  61     sequence = [key.toString() for key in keys].join(',')
  62     for s in Object.keys(commands)
  63       if s.search(sequence) == 0
  64         return true
  65
  66     return maybeCommand keys.slice(1)
  67
  68 exports.getCommand      = getCommand
  69 exports.maybeCommand    = maybeCommand