radical/margins.lua

57 lines
1.5 KiB
Lua

-- This helper module create a virtual margin object. This then used as a proxy
-- between the real wibox.widget.margins and the Radical menu.
local setmetatable = setmetatable
local awful = require("awful")
local module = {}
local function reset_margins(margins)
local widget = margins.widget
if widget and margins.defaults then
for k,v in pairs(margins.defaults) do
local f = widget["set_"..k:lower()]
if f then
f(widget,v)
end
end
end
end
local function new(widget,defaults)
local mt = setmetatable({defaults=awful.util.table.join(defaults,{}),widget=widget,reset=reset_margins,
merge = function(values)
if values.left then
widget:set_left(values.left)
end
if values.right then
widget:set_right(values.right)
end
if values.top then
widget:set_top(values.top)
end
if values.bottom then
widget:set_bottom(values.bottom)
end
end
},{__newindex = function(tab, key,value)
if key == "widget" then
rawset(tab,"widget",value)
reset_margins(tab)
elseif widget then
widget["set_"..key](widget,value)
else --TODO can't do this
defaults[key] = value
end
end
,__index=function(table,key)
local w = rawget(table,"widget")
return w and w[key] or 0 --widget["get_"..key](widget)
end})
reset_margins(mt)
return mt
end
return setmetatable(module, { __call = function(_, ...) return new(...) end })
-- kate: space-indent on; indent-width 2; replace-tabs on;