extension/packages/vim.coffee

   1 ###
   2 # Copyright Anton Khodakivskiy 2012, 2013.
   3 # Copyright Simon Lydell 2013, 2014.
   4 #
   5 # This file is part of VimFx.
   6 #
   7 # VimFx is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # VimFx is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with VimFx.  If not, see <http://www.gnu.org/licenses/>.
  19 ###
  20
  21 utils     = require 'utils'
  22 { modes } = require 'modes'
  23
  24 class Vim
  25   constructor: (@window) ->
  26     @rootWindow = utils.getRootWindow(@window) # For convenience.
  27     @storage = {}
  28     @lastInteraction = null
  29     @enterMode('normal')
  30
  31   enterMode: (mode, args...) ->
  32     # `args` is an array of arguments to be passed to the mode's `onEnter`
  33     # method.
  34
  35     if mode not of modes
  36       throw new Error("Not a valid VimFx mode to enter: #{ mode }")
  37
  38     if @mode != mode
  39       if @mode of modes
  40         modes[@mode].onLeave(@, @storage[@mode])
  41
  42       @mode = mode
  43
  44       modes[@mode].onEnter(@, @storage[@mode] ?= {}, args...)
  45
  46   onInput: (keyStr, event) ->
  47     suppress = modes[@mode]?.onInput(@, @storage[@mode], keyStr, event)
  48     return suppress
  49
  50 exports.Vim = Vim