share/lua/intf/hotkeys.lua

   1 --[==========================================================================[
   2  hotkeys.lua: hotkey handling for VLC
   3 --[==========================================================================[
   4  Copyright (C) 2007 the VideoLAN team
   5  $Id$
   6
   7  Authors: Antoine Cellerier <dionoea at videolan dot org>
   8
   9  This program is free software; you can redistribute it and/or modify
  10  it under the terms of the GNU General Public License as published by
  11  the Free Software Foundation; either version 2 of the License, or
  12  (at your option) any later version.
  13
  14  This program is distributed in the hope that it will be useful,
  15  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  GNU General Public License for more details.
  18
  19  You should have received a copy of the GNU General Public License
  20  along with this program; if not, write to the Free Software
  21  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22 --]==========================================================================]
  23
  24 --[==========================================================================[
  25     This is meant to replace modules/control/hotkeys.c
  26     (which will require some changes in the VLC core hotkeys stuff)
  27 --]==========================================================================]
  28
  29 require("common")
  30 --common.table_print(vlc,"vlc.\t")
  31
  32 bindings = {
  33     ["Ctrl-q"] = "quit",
  34     ["Space"] = "play-pause",
  35     [113] --[[q]] = "quit",
  36     [119] --[[w]] = "demo",
  37     [120] --[[x]] = "demo2",
  38     }
  39
  40 function quit()
  41     print("Bye-bye!")
  42     vlc.quit()
  43 end
  44
  45 function demo()
  46     vlc.osd.icon("speaker")
  47 end
  48
  49 function demo2()
  50     if not channel1 then
  51         channel1 = vlc.osd.channel_register()
  52         channel2 = vlc.osd.channel_register()
  53     end
  54     vlc.osd.message("Hey!",channel1)
  55     vlc.osd.slider( 10, "horizontal", channel2 )
  56 end
  57
  58 function action(func,delta)
  59     return { func = func, delta = delta or 0, last = 0, times = 0 }
  60 end
  61
  62 actions = {
  63     ["quit"] = action(quit),
  64     ["play-pause"] = action(play_pause),
  65     ["demo"] = action(demo),
  66     ["demo2"] = action(demo2),
  67     }
  68
  69 action = nil
  70
  71 queue = {}
  72
  73 function action_trigger( action )
  74     print("action_trigger:",tostring(action))
  75     local a = actions[action]
  76     if a then
  77         local date = vlc.misc.mdate()
  78         if a.delta and date > a.last + a.delta then
  79             a.times = 0
  80         else
  81             a.times = a.times + 1
  82         end
  83         a.last = date
  84         table.insert(queue,action)
  85         vlc.misc.signal()
  86     else
  87         vlc.msg.err("Key `"..key.."' points to unknown action `"..bindings[key].."'.")
  88     end
  89 end
  90
  91 function key_press( var, old, new, data )
  92     local key = new
  93     print("key_press:",tostring(key))
  94     if bindings[key] then
  95         action_trigger(bindings[key])
  96     else
  97         vlc.msg.err("Key `"..key.."' isn't bound to any action.")
  98     end
  99 end
 100
 101 vlc.var.add_callback( vlc.object.libvlc(), "key-pressed", key_press )
 102 --vlc.var.add_callback( vlc.object.libvlc(), "action-triggered", action_trigger )
 103
 104 while not die do
 105     if #queue ~= 0 then
 106         local action = actions[queue[1]]
 107         local ok, msg = pcall( action.func )
 108         if not ok then
 109             vlc.msg.err("Error while executing action `"..queue[1].."': "..msg)
 110         end
 111         table.remove(queue,1)
 112     else
 113         die = vlc.misc.lock_and_wait()
 114     end
 115 end
 116
 117 -- Clean up
 118 vlc.var.del_callback( vlc.object.libvlc(), "key-pressed", key_press )
 119 --vlc.var.del_callback( vlc.object.libvlc(), "action-triggered", action_trigger )