lib/beautiful.lua

   1 ----------------------------------------------------------------------------
   2 -- @author Damien Leone &lt;damien.leone@gmail.com&gt;
   3 -- @author Julien Danjou &lt;julien@danjou.info&gt;
   4 -- @copyright 2008 Damien Leone, Julien Danjou
   5 ----------------------------------------------------------------------------
   6
   7 -- Grab environment
   8 local io = io
   9 local print = print
  10 local setmetatable = setmetatable
  11 local awful = require("awful")
  12 local package = package
  13 local capi = { awesome = awesome }
  14
  15 local module_name = "beautiful"
  16
  17 --- beautiful: theme library
  18 module("beautiful")
  19
  20 -- Local data
  21 local theme = {}
  22
  23 --- Split line in two if it  contains the '=' character.
  24 -- @param line The line to split.
  25 -- @return nil if  the '=' character is not in the string
  26 local function split_line(line)
  27     local split_val = line:find('=')
  28
  29     if split_val and line:sub(1, 1) ~= '#' and line:sub(1, 2) ~= '--' then
  30         -- Remove spaces in key and extra spaces before value
  31         local value = line:sub(split_val + 1, -1)
  32         while value:sub(1, 1) == ' ' do
  33             value = value:sub(2, -1)
  34         end
  35
  36         return line:sub(1, split_val - 1):gsub(' ', ''), value
  37     end
  38 end
  39
  40 --- Get a value directly.
  41 -- @param key The key.
  42 -- @return The value.
  43 function __index(self, key)
  44     if theme[key] then
  45         return theme[key]
  46     end
  47 end
  48
  49 --- Init function, should be runned at the beginning of configuration file.
  50 -- @param path The theme file path.
  51 function init(path)
  52     if path then
  53        local f = io.open(path)
  54
  55        if not f then
  56            return print("E: unable to load theme " .. path)
  57        end
  58
  59        for line in f:lines() do
  60             local key, value
  61             key, value = split_line(line)
  62             if key then
  63                 if key == "wallpaper_cmd" then
  64                     awful.spawn(value)
  65                 elseif key == "font" then
  66                     capi.awesome.font_set(value)
  67                 elseif key == "fg_normal" then
  68                     capi.awesome.colors_set({ fg = value })
  69                 elseif key == "bg_normal" then
  70                     capi.awesome.colors_set({ bg = value })
  71                 end
  72                 -- Store.
  73                 theme[key] = value
  74             end
  75         end
  76         f:close()
  77     end
  78 end
  79
  80 setmetatable(package.loaded[module_name], package.loaded[module_name])
  81
  82 -- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80