From 98e26ee0436822b00d4a6e707d86cf33d24bc00f Mon Sep 17 00:00:00 2001
From: "Adrian C. (anrxc)" <anrxc@sysphere.org>
Date: Wed, 29 Jul 2009 17:59:32 +0200
Subject: Import of vicious source tree.

Vicious is a modular widget library for 'awesome' window manager,
derived from the 'Wicked' widget library.

Summary of changes:
  * Original wicked code modularized
  * Widgets ported from Wicked:
    - CPU, MEM, FS, NET, Date, Uptime, MPD
      * CPU widget rewritten, uses pattern matching
      * MEM widget rewritten, uses pattern matching
        - Swap widget merged with MEM widget type
      * FS widget rewritten, uses pattern matching
        - Also fixed padding in the process
      * NET widget rewritten, uses pattern matching
      * MPD widget rewritten, a bit more versatile
      * Removed deprecated helper functions
  * Widgets written for Vicious:
    - Thermal, Battery, Mbox, OrgMode, Volume, Entropy,
      Disk I/O, System Load, Wireless, Pacman, Maildir
---
 wifi.lua | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 wifi.lua

(limited to 'wifi.lua')

diff --git a/wifi.lua b/wifi.lua
new file mode 100644
index 0000000..35289dd
--- /dev/null
+++ b/wifi.lua
@@ -0,0 +1,62 @@
+----------------------------------------------------------
+-- Licensed under the GNU General Public License version 2
+--  * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
+----------------------------------------------------------
+
+-- {{{ Grab environment
+local io = { popen = io.popen }
+local string = {
+    find = string.find,
+    match = string.match
+}
+-- }}}
+
+
+-- Wifi: provides wireless information for a requested interface
+module("vicious.wifi")
+
+
+-- {{{ Wireless widget type
+function worker(format, iface)
+    -- Get data from iwconfig, on distributions where it is executable
+    -- by users, and /sbin or /usr/sbin is in their path
+    local f = io.popen("iwconfig " .. iface)
+    local iw = f:read("*all")
+    f:close()
+
+    -- Setup tables
+    local winfo = {
+        ["{ssid}"] = "N/A",
+        ["{mode}"] = "N/A",
+        ["{chan}"] = "N/A",
+        ["{rate}"] = "N/A",
+        ["{link}"] = "N/A",
+        ["{sign}"] = "N/A"
+    }
+
+    -- Check if iwconfig wasn't found, can't be executed or the
+    -- interface is not a wireless one
+    if iw == nil or string.find(iw, "No such device") then
+        return winfo
+    else
+        -- The output differs from system to system, some stats can
+        -- be separated by =, and not all drivers report all stats
+        winfo["{ssid}"] =  -- SSID can have almost anything in it
+          string.match(iw, 'ESSID[=:]"([%w]+[%s]*[%w]*]*)"') or winfo["{ssid}"]
+        winfo["{mode}"] =  -- Modes are simple, but also match the "-" in Ad-Hoc
+          string.match(iw, "Mode[=:]([%w%-]*)") or winfo["{mode}"]
+        winfo["{chan}"] =  -- Channels are plain digits
+          string.match(iw, "Channel[=:]([%d]+)") or winfo["{chan}"]
+        winfo["{rate}"] =  -- Bitrate can start with a space and we want to display Mb/s
+          string.match(iw, "Bit Rate[=:]([%s]?[%d%.]*[%s][%/%a]+)") or winfo["{rate}"]
+--      winfo["{link}"] =  -- Link quality can contain a slash: 32/100
+--        string.match(iw, "Link Quality[=:]([%d]+[%/%d]*)") or winfo["{link}"]
+        winfo["{link}"] =  --  * match only the first number, great data for a progressbar
+          string.match(iw, "Link Quality[=:]([%d]+)") or winfo["{link}"]
+        winfo["{sign}"] =  -- Signal level can be a negative value, also display decibel notation
+          string.match(iw, "Signal level[=:]([%-%d]+[%s][%a]*)") or winfo["{sign}"]
+    end
+
+    return winfo
+end
+-- }}}
-- 
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