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Add callback function for to update sink
[etc/awesome.git] / widgets / net.lua
diff --git a/widgets/net.lua b/widgets/net.lua
index d692df1268976f75a44379cab22bd227e22c6717..af823a824e1eaa48e8e5bd05025365c7d46f261a 100644 (file)
--- a/widgets/net.lua
+++ b/widgets/net.lua
@@ -13,60 +13,62 @@ local notify_fg    = require("beautiful").fg_focus
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
-local io           = io
-local tostring     = tostring
 local string       = { format = string.format,
 local string       = { format = string.format,
-                       gsub   = string.gsub }
+                       gsub   = string.gsub,
+                       match  = string.match }
 
 local setmetatable = setmetatable
 
 -- Network infos
 -- lain.widgets.net
 
 local setmetatable = setmetatable
 
 -- Network infos
 -- lain.widgets.net
-local net = {
-    last_t = 0,
-    last_r = 0
-}
-
-function net.get_device()
-    f = io.popen("ip link show | cut -d' ' -f2,9")
-    ws = f:read("*all")
-    f:close()
-    ws = ws:match("%w+: UP")
-    if ws ~= nil then
-        return ws:gsub(": UP", "")
-    else
-        return ""
-    end
-end
 
 local function worker(args)
 
 local function worker(args)
-    local args = args or {}
-    local timeout = args.timeout or 2
-    local iface = args.iface or net.get_device()
-    local units = args.units or 1024 --kb
+    local net = { last_t = 0, last_r = 0 }
+
+    function net.get_device()
+        local ws = helpers.read_pipe("ip link show | cut -d' ' -f2,9")
+        ws = ws:match("%w+: UP") or ws:match("ppp%w+: UNKNOWN")
+        if ws ~= nil then
+            return ws:match("(%w+):")
+        else
+            return "network off"
+        end
+    end
+
+    local args     = args or {}
+    local timeout  = args.timeout or 2
+    local units    = args.units or 1024 --kb
+    local notify   = args.notify or "on"
+    local screen   = args.screen or 1
     local settings = args.settings or function() end
     local settings = args.settings or function() end
+    local iface    = args.iface or net.get_device()
 
     net.widget = wibox.widget.textbox('')
 
     helpers.set_map(iface, true)
 
 
     net.widget = wibox.widget.textbox('')
 
     helpers.set_map(iface, true)
 
-    function net.update() 
-        if iface == "" then iface = net.get_device() end
+    function update()
+        net_now = {}
+
+        if iface == "" or string.match(iface, "network off")
+        then
+            iface = net.get_device()
+        end
 
 
-        carrier = helpers.first_line('/sys/class/net/' .. iface ..
+        net_now.carrier = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/carrier') or "0"
                                            '/carrier') or "0"
-        state = helpers.first_line('/sys/class/net/' .. iface ..
+        net_now.state = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/operstate') or "down"
         local now_t = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/statistics/tx_bytes') or 0
         local now_r = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/statistics/rx_bytes') or 0
 
                                            '/operstate') or "down"
         local now_t = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/statistics/tx_bytes') or 0
         local now_r = helpers.first_line('/sys/class/net/' .. iface ..
                                            '/statistics/rx_bytes') or 0
 
-        sent = tostring((now_t - net.last_t) / timeout / units)
-        sent = string.gsub(string.format('%.1f', sent), ",", ".")
+        net_now.sent = (now_t - net.last_t) / timeout / units
+        net_now.sent = string.gsub(string.format('%.1f', net_now.sent), ",", ".")
 
 
-        received = tostring((now_r - net.last_r) / timeout / units)
-        received = string.gsub(string.format('%.1f', received), ",", ".")
+        net_now.received = (now_r - net.last_r) / timeout / units
+        net_now.received = string.gsub(string.format('%.1f', net_now.received), ",", ".")
 
         widget = net.widget
         settings()
 
         widget = net.widget
         settings()
@@ -74,19 +76,18 @@ local function worker(args)
         net.last_t = now_t
         net.last_r = now_r
 
         net.last_t = now_t
         net.last_r = now_r
 
-        if carrier ~= "1"
+        if net_now.carrier ~= "1" and notify == "on"
         then
             if helpers.get_map(iface)
             then
         then
             if helpers.get_map(iface)
             then
-                n_title = iface
-                if n_title == "" then n_title = "network" end
                 naughty.notify({
                 naughty.notify({
-                    title    = n_title,
+                    title    = iface,
                     text     = "no carrier",
                     timeout  = 7,
                     position = "top_left",
                     icon     = helpers.icons_dir .. "no_net.png",
                     text     = "no carrier",
                     timeout  = 7,
                     position = "top_left",
                     icon     = helpers.icons_dir .. "no_net.png",
-                    fg       = notify_fg or "#FFFFFF"
+                    fg       = notify_fg or "#FFFFFF",
+                    screen   = screen
                 })
                 helpers.set_map(iface, false)
             end
                 })
                 helpers.set_map(iface, false)
             end
@@ -95,9 +96,9 @@ local function worker(args)
         end
     end
 
         end
     end
 
-    helpers.newtimer(iface, timeout, net.update)
+    helpers.newtimer(iface, timeout, update)
 
 
-    return net.widget
+    return setmetatable(net, { __index = net.widget })
 end
 
 end
 
-return setmetatable(net, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })
awesome window-manager configuration

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