2 -- ion/mod_menu/mod_menu.lua -- Menu opening helper routines.
4 -- Copyright (c) Tuomo Valkonen 2004-2007.
6 -- See the included file LICENSE for details.
9 -- This is a slight abuse of the package.loaded variable perhaps, but
10 -- library-like packages should handle checking if they're loaded instead of
11 -- confusing the user with require/include differences.
12 if package.loaded["mod_menu"] then return end
14 if not ioncore.load_module("mod_menu") then
18 local mod_menu=_G["mod_menu"]
19 local menudb=_G["ioncore"]
21 assert(mod_menu and menudb)
26 local function menu_(reg, sub, menu_or_name, fn, check)
28 -- Check that no other menus are open in reg.
29 local ok=reg:managed_i(function(r)
30 return not obj_is(r, "WMenu")
37 menu=menudb.evalmenu(menu_or_name, reg, sub)
39 return fn(reg, function(e) e.func(reg, sub) end, menu)
44 -- Display a menu in the lower-left corner of \var{mplex}.
45 -- The variable \var{menu_or_name} is either the name of a menu
46 -- defined with \fnref{mod_menu.defmenu} or directly a table similar
47 -- to ones passesd to this function. When this function is
48 -- called from a binding handler, \var{sub} should be set to
49 -- the second argument of to the binding handler (\var{_sub})
50 -- so that the menu handler will get the same parameters as the
51 -- binding handler. Extra options can be passed in the table
52 -- \var{param}. The initial entry can be specified as the field
53 -- \var{initial} as an integer starting from 1. Menus can be made
54 -- to use a bigger style by setting the field \var{big} to \code{true}.
55 function mod_menu.menu(mplex, sub, menu_or_name, param)
56 local function menu_stdmenu(m, s, menu)
57 return ioncore.unsqueeze(mod_menu.do_menu(m, s, menu, param))
59 return menu_(mplex, sub, menu_or_name, menu_stdmenu, true)
63 function mod_menu.bigmenu(mplex, sub, menu_or_name, initial)
64 local param={big=true, initial=initial}
65 return mod_menu.menu(mplex, sub, menu_or_name, param)
69 -- This function is similar to \fnref{mod_menu.menu}, but input
70 -- is grabbed and the key used to active the menu can be used to
71 -- cycle through menu entries.
72 function mod_menu.grabmenu(mplex, sub, menu_or_name, param)
73 local function menu_grabmenu(m, s, menu)
74 return mod_menu.do_grabmenu(m, s, menu, param)
76 return menu_(mplex, sub, menu_or_name, menu_grabmenu, true)
80 function mod_menu.biggrabmenu(mplex, sub, menu_or_name, key, initial)
81 local function menu_biggrabmenu(m, s, menu)
82 return mod_menu.do_grabmenu(m, s, menu, true, key, initial or 0)
84 return menu_(mplex, sub, menu_or_name, menu_biggrabmenu, true, initial)
88 -- This function displays a drop-down menu and should only
89 -- be called from a mouse press handler. The parameters are
90 -- similar to those of \fnref{mod_menu.menu}.
91 function mod_menu.pmenu(win, sub, menu_or_name)
92 return menu_(win, sub, menu_or_name, mod_menu.do_pmenu)
98 -- Mark ourselves loaded.
99 package.loaded["mod_menu"]=true
102 -- Load configuration file
103 dopath('cfg_menu', true)