src/ffluci/menu.lua

   1 --[[
   2 FFLuCI - Menu Builder
   3
   4 Description:
   5 Collects menu building information from controllers
   6
   7 FileId:
   8 $Id$
   9
  10 License:
  11 Copyright 2008 Steven Barth <steven@midlink.org>
  12
  13 Licensed under the Apache License, Version 2.0 (the "License");
  14 you may not use this file except in compliance with the License.
  15 You may obtain a copy of the License at
  16
  17         http://www.apache.org/licenses/LICENSE-2.0
  18
  19 Unless required by applicable law or agreed to in writing, software
  20 distributed under the License is distributed on an "AS IS" BASIS,
  21 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  22 See the License for the specific language governing permissions and
  23 limitations under the License.
  24
  25 ]]--
  26 module("ffluci.menu", package.seeall)
  27
  28 require("ffluci.fs")
  29 require("ffluci.util")
  30 require("ffluci.template")
  31 require("ffluci.i18n")
  32 require("ffluci.config")
  33
  34 -- Default modelpath
  35 modelpath = ffluci.config.path .. "/model/menu/"
  36
  37 -- Menu definition extra scope
  38 scope = {
  39         translate = ffluci.i18n.translate
  40 }
  41
  42 -- Local menu database
  43 local menu = {}
  44
  45 -- The current pointer
  46 local menuc = {}
  47
  48 -- Adds a menu category to the current menu and selects it
  49 function add(cat, controller, title, order)
  50         order = order or 50
  51         if not menu[cat] then
  52                 menu[cat] = {}
  53         end
  54
  55         local entry = {}
  56         entry[".descr"] = title
  57         entry[".order"] = order
  58         entry[".contr"] = controller
  59
  60         menuc = entry
  61
  62         local i = 0
  63         for k,v in ipairs(menu[cat]) do
  64                 if v[".order"] > entry[".order"] then
  65                         break
  66                 end
  67                 i = k
  68         end
  69         table.insert(menu[cat], i+1, entry)
  70
  71         return true
  72 end
  73
  74 -- Adds an action to the current menu
  75 function act(action, title)
  76         table.insert(menuc, {action = action, descr = title})
  77         return true
  78 end
  79
  80 -- Selects a menu category
  81 function sel(cat, controller)
  82         if not menu[cat] then
  83                 return nil
  84         end
  85         menuc = menu[cat]
  86
  87         local stat = nil
  88         for k,v in ipairs(menuc) do
  89                 if v[".contr"] == controller then
  90                         menuc = v
  91                         stat = true
  92                 end
  93         end
  94
  95         return stat
  96 end
  97
  98
  99 -- Collect all menu information provided in the model dir
 100 function collect()
 101         for k, menu in pairs(ffluci.fs.dir(modelpath)) do
 102                 if menu:sub(1, 1) ~= "." then
 103                         local f = loadfile(modelpath.."/"..menu)
 104                         local env = ffluci.util.clone(scope)
 105
 106                         env.add = add
 107                         env.sel = sel
 108                         env.act = act
 109
 110                         setfenv(f, env)
 111                         f()
 112                 end
 113         end
 114 end
 115
 116 -- Returns the menu information
 117 function get()
 118         collect()
 119         return menu
 120 end