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[etc/awesome.git] / widgets / weather.lua

diff --git a/widgets/weather.lua b/widgets/weather.lua
index c8c34f973e5b3ce2e5675f0fc43ec2ce585c147b..17b3d3463737ef338b79ed8ceeece3b873a4cb73 100644 (file)
--- a/widgets/weather.lua
+++ b/widgets/weather.lua
@@ -6,22 +6,23 @@
                                                   
 --]]
 
+local async        = require("lain.helpers").async
 local newtimer     = require("lain.helpers").newtimer
-local read_pipe    = require("lain.helpers").read_pipe
-
-local async        = require("lain.asyncshell")
-local json         = require("lain.util").dkjson
 local lain_icons   = require("lain.helpers").icons_dir
+local json         = require("lain.util").dkjson
 
+local focused      = require("awful.screen").focused
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
-local math         = { floor  = math.floor }
+local math         = { floor    = math.floor }
+local os           = { time     = os.time,
+                       date     = os.date,
+                       difftime = os.difftime }
+local string       = { format   = string.format,
+                       gsub     = string.gsub }
+
 local mouse        = mouse
-local os           = { time   = os.time }
-local string       = { format = string.format,
-                       gsub   = string.gsub }
-local naughty = require("naughty")
 local tonumber     = tonumber
 local setmetatable = setmetatable
 
@@ -38,7 +39,11 @@ local function worker(args)
     local current_call          = args.current_call  or "curl -s 'http://api.openweathermap.org/data/2.5/weather?id=%s&units=%s&lang=%s&APPID=%s'"
     local forecast_call         = args.forecast_call or "curl -s 'http://api.openweathermap.org/data/2.5/forecast/daily?id=%s&units=%s&lang=%s&cnt=%s&APPID=%s'"
     local city_id               = args.city_id or 0 -- placeholder
-    local utc                   = args.utc or 0
+    local utc_offset            = args.utc_offset or
+                                  function ()
+                                      local now = os.time()
+                                      return os.difftime(now, os.time(os.date("!*t", now))) + ((os.date("*t").isdst and 1 or 0) * 3600)
+                                  end
     local units                 = args.units or "metric"
     local lang                  = args.lang or "en"
     local cnt                   = args.cnt or 5
@@ -47,15 +52,14 @@ local function worker(args)
     local notification_preset   = args.notification_preset or {}
     local notification_text_fun = args.notification_text_fun or
                                   function (wn)
-                                      local day = string.gsub(read_pipe(string.format(date_cmd, wn["dt"])), "\n", "")
+                                      local day = os.date("%a %d", wn["dt"])
                                       local tmin = math.floor(wn["temp"]["min"])
                                       local tmax = math.floor(wn["temp"]["max"])
                                       local desc = wn["weather"][1]["description"]
-
                                       return string.format("<b>%s</b>: %s, %d - %d ", day, desc, tmin, tmax)
                                   end
     local weather_na_markup     = args.weather_na_markup or " N/A "
-    local followmouse           = args.followmouse or false
+    local followtag             = args.followtag or false
     local settings              = args.settings or function() end
 
     weather.widget    = wibox.widget.textbox(weather_na_markup)
@@ -65,15 +69,14 @@ local function worker(args)
     function weather.show(t_out)
         weather.hide()
 
-        if followmouse then
-            notification_preset.screen = mouse.screen
+        if followtag then
+            notification_preset.screen = focused()
         end
 
         if not weather.notification_text then
             weather.forecast_update()
         end
 
-
         weather.notification = naughty.notify({
             text    = weather.notification_text,
             icon    = weather.icon_path,
@@ -100,11 +103,11 @@ local function worker(args)
 
     function weather.forecast_update()
         local cmd = string.format(forecast_call, city_id, units, lang, cnt, APPID)
-        async.request(cmd, function(f)
+        async(cmd, function(f)
             local pos, err
             weather_now, pos, err = json.decode(f, 1, nil)
 
-            if not err and weather_now and tonumber(weather_now["cod"]) == 200 then
+            if not err and type(weather_now) == "table" and tonumber(weather_now["cod"]) == 200 then
                 weather.notification_text = ''
                 for i = 1, weather_now["cnt"] do
                     weather.notification_text = weather.notification_text ..
@@ -120,20 +123,25 @@ local function worker(args)
 
     function weather.update()
         local cmd = string.format(current_call, city_id, units, lang, APPID)
-        async.request(cmd, function(f)
+        async(cmd, function(f)
             local pos, err, icon
             weather_now, pos, err = json.decode(f, 1, nil)
 
-            if not err and weather_now and tonumber(weather_now["cod"]) == 200 then
+            if not err and type(weather_now) == "table" and tonumber(weather_now["cod"]) == 200 then
                 -- weather icon based on localtime
                 local now     = os.time()
                 local sunrise = tonumber(weather_now["sys"]["sunrise"])
                 local sunset  = tonumber(weather_now["sys"]["sunset"])
                 local icon    = weather_now["weather"][1]["icon"]
-                local utc_m   = string.gsub(read_pipe(string.format("date -u -d 'today 00:00:00' +'%%s'")), "\n", "")
-
-                if now > tonumber(utc_m) then
-                    now = now - (utc * 3600)
+                local loc_m   = os.time { year = os.date("%Y"), month = os.date("%m"), day = os.date("%d"), hour = 0 }
+                local offset  = utc_offset()
+                local utc_m   = loc_m + offset
+
+                -- if we are 1 day after the GMT, return 1 day back, and viceversa
+                if offset > 0 and loc_m >= utc_m then
+                    now = now - 86400
+                elseif offset < 0 and loc_m <= utc_m then
+                    now = now + 86400
                 end
 
                 if sunrise <= now and now <= sunset then
@@ -143,7 +151,6 @@ local function worker(args)
                 end
 
                 weather.icon_path = icons_path .. icon .. ".png"
-
                 widget = weather.widget
                 settings()
             else