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|
----------------------------------------------------------------
-- Vicious widgets for the awesome window manager
-- * FAQ: http://sysphere.org/~anrxc/local/scr/sources/vicious
----------------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
--
-- To view a human-readable summary of the license, visit:
-- * http://creativecommons.org/licenses/GPL/2.0/
----------------------------------------------------------------
-- Derived from Wicked, by Lucas de Vries <lucas_glacicle_com>
-- * Wicked is licensed under the WTFPL v2
----------------------------------------------------------------
-- {{{ Grab environment
require("awful")
require("vicious.helpers")
local type = type
local pairs = pairs
local awful = awful
local tonumber = tonumber
local os = { time = os.time }
local table = {
insert = table.insert,
remove = table.remove
}
-- Grab C API
local capi = {
hooks = hooks,
widget = widget,
awesome = awesome,
}
-- }}}
-- {{{ Configure widgets
require("vicious.cpu")
require("vicious.thermal")
require("vicious.load")
require("vicious.uptime")
require("vicious.bat")
require("vicious.batat")
require("vicious.mem")
require("vicious.fs")
require("vicious.dio")
require("vicious.net")
require("vicious.wifi")
require("vicious.mbox")
require("vicious.mdir")
require("vicious.entropy")
require("vicious.org")
require("vicious.pacman")
require("vicious.mpd")
require("vicious.volume")
require("vicious.weather")
require("vicious.date")
-- }}}
-- Vicious: widgets for the awesome window manager
module("vicious")
-- {{{ Initialise variables
local registered = {}
local widget_cache = {}
-- Initialise the function table
widgets = {}
-- }}}
-- {{{ Widget types
for w, i in pairs(_M) do
-- Ensure we don't call ourselves
if i and i ~= _M and type(i) == "table" then
-- Ignore the function table and helpers
if w ~= "widgets" and w ~= "helpers" then
-- Place functions in the namespace table
widgets[w] = i.worker
-- Enable caching for all widget types
widget_cache[i.worker] = {}
end
end
end
-- }}}
-- {{{ Main functions
-- {{{ Register widget
function register(widget, wtype, format, timer, field, padd)
local reg = {}
local widget = widget
-- Set properties
reg.type = wtype
reg.format = format
reg.timer = timer
reg.field = field
reg.padd = padd
reg.widget = widget
-- Update function
reg.update = function ()
update(widget, reg)
end
-- Default to timer=1
if reg.timer == nil then
reg.timer = 1
end
-- Allow using a string widget type
if type(reg.type) == "string" then
reg.type = widgets[reg.type]
end
-- Register reg object
regregister(reg)
-- Return reg object for reuse
return reg
end
-- }}}
-- {{{ Register from reg object
function regregister(reg)
if not reg.running then
-- Put widget in table
if registered[reg.widget] == nil then
registered[reg.widget] = {}
table.insert(registered[reg.widget], reg)
else
already = false
for w, i in pairs(registered) do
if w == reg.widget then
for k, v in pairs(i) do
if v == reg then
already = true
break
end
end
if already then
break
end
end
end
if not already then
table.insert(registered[reg.widget], reg)
end
end
-- Start timer
if reg.timer > 0 then
awful.hooks.timer.register(reg.timer, reg.update)
end
-- Initial update
reg.update()
-- Set running
reg.running = true
end
end
-- }}}
-- {{{ Unregister widget
function unregister(widget, keep, reg)
if reg == nil then
for w, i in pairs(registered) do
if w == widget then
for k, v in pairs(i) do
reg = unregister(w, keep, v)
end
end
end
return reg
end
if not keep then
for w, i in pairs(registered) do
if w == widget then
for k, v in pairs(i) do
if v == reg then
table.remove(registered[w], k)
end
end
end
end
end
awful.hooks.timer.unregister(reg.update)
reg.running = false
return reg
end
-- }}}
-- {{{ Suspend vicious, halt all widget updates
function suspend()
for w, i in pairs(registered) do
for k, v in pairs(i) do
unregister(w, true, v)
end
end
end
-- }}}
-- {{{ Activate vicious, restart all widget updates
function activate(widget)
for w, i in pairs(registered) do
if widget == nil or w == widget then
for k, v in pairs(i) do
regregister(v)
end
end
end
end
-- }}}
-- {{{ Update widget
function update(widget, reg, disablecache)
-- Check if there are any equal widgets
if reg == nil then
for w, i in pairs(registered) do
if w == widget then
for k, v in pairs(i) do
update(w, v, disablecache)
end
end
end
return
end
local t = os.time()
local data = {}
-- Check if we have output chached for this widget newer than last
-- widget update
if widget_cache[reg.type] ~= nil then
local c = widget_cache[reg.type]
if c.time == nil or c.time <= t-reg.timer or disablecache then
c.time = t
c.data = reg.type(reg.format, reg.padd)
end
data = c.data
else
data = reg.type(reg.format, reg.padd)
end
if type(data) == "table" then
if type(reg.format) == "string" then
data = helpers.format(reg.format, data)
elseif type(reg.format) == "function" then
data = reg.format(widget, data)
end
end
if reg.field == nil then
widget.text = data
elseif widget.plot_data_add ~= nil then
widget:plot_data_add(reg.field, tonumber(data))
elseif widget.bar_data_add ~= nil then
widget:bar_data_add(reg.field, tonumber(data))
end
return data
end
-- }}}
-- }}}
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