awesome/lib/awful/widget/common.lua.in

101 lines
3.2 KiB
Lua

---------------------------------------------------------------------------
-- @author Julien Danjou <julien@danjou.info>
-- @copyright 2008-2009 Julien Danjou
-- @release @AWESOME_VERSION@
---------------------------------------------------------------------------
-- Grab environment we need
local math = math
local type = type
local ipairs = ipairs
local pairs = pairs
local pcall = pcall
local setmetatable = setmetatable
local capi = { button = button }
local util = require("awful.util")
local wibox = require("wibox")
local imagebox = require("wibox.widget.imagebox")
local textbox = require("wibox.widget.textbox")
--- Common utilities for awful widgets
local common = {}
-- Recursively processes a template, replacing the tables representing the icon and
-- the title with the widgets ib and tb
local function replace_in_template(t, ib, tb)
for i, v in ipairs(t) do
if type(t[i]) == "table" then
if v.item == "icon" then
t[i] = ib
elseif v.item == "title" then
t[i] = tb
else
replace_in_template(v, ib, tb)
end
end
end
end
function common.list_update(w, buttons, label, data, objects)
-- update the widgets, creating them if needed
w:reset()
for i, o in ipairs(objects) do
local cache = data[o]
local ib, tb, bgb, m, l
if cache then
ib = cache.ib
tb = cache.tb
bgb = cache.bgb
else
ib = wibox.widget.imagebox()
tb = wibox.widget.textbox()
bgb = wibox.widget.background()
m = wibox.layout.margin(tb, 4, 4)
l = wibox.layout.fixed.horizontal()
-- All of this is added in a fixed widget
l:fill_space(true)
l:add(ib)
l:add(m)
-- And all of this gets a background
bgb:set_widget(l)
if buttons then
local btns = {}
for kb, b in ipairs(buttons) do
-- Create a proxy button object: it will receive the real
-- press and release events, and will propagate them the the
-- button object the user provided, but with the object as
-- argument.
local btn = capi.button { modifiers = b.modifiers, button = b.button }
btn:connect_signal("press", function () b:emit_signal("press", o) end)
btn:connect_signal("release", function () b:emit_signal("release", o) end)
btns[#btns + 1] = btn
end
bgb:buttons(btns)
end
data[o] = {
ib = ib,
tb = tb,
bgb = bgb
}
end
local text, bg, bg_image, icon = label(o)
-- The text might be invalid, so use pcall
if not pcall(tb.set_markup, tb, text) then
tb:set_markup("<i>&lt;Invalid text&gt;</i>")
end
bgb:set_bg(bg)
bgb:set_bgimage(bg_image)
ib:set_image(icon)
w:add(bgb)
end
end
return common
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80