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--[[
Licensed under GNU General Public License v2
* (c) 2013, Luke Bonham
--]]
local newtimer = require("lain.helpers").newtimer
local naughty = require("naughty")
local wibox = require("wibox")
local debug = { getinfo = debug.getinfo }
local io = io
local os = { date = os.date,
getenv = os.getenv }
local string = { find = string.find,
match = string.match,
gsub = string.gsub,
sub = string.sub }
local tonumber = tonumber
local setmetatable = setmetatable
-- YAhoo! Weather Notification
-- lain.widgets.yawn
local yawn =
{
icon = wibox.widget.imagebox(),
widget = wibox.widget.textbox('')
}
local project_path = debug.getinfo(1, 'S').source:match[[^@(.*/).*$]]
local localizations_path = project_path .. 'localizations/'
local icon_path = project_path .. 'icons/'
local api_url = 'http://weather.yahooapis.com/forecastrss'
local units_set = '?u=c&w=' -- Default is Celsius
local language = string.match(os.getenv("LANG"), "(%S*$*)[.]")
local weather_data = nil
local notification = nil
local city_id = nil
local sky = nil
local settings = function() end
yawn_notification_preset = {}
local function fetch_weather()
local url = api_url .. units_set .. city_id
local f = io.popen("curl --connect-timeout 1 -fsm 3 '" .. url .. "'" )
local text = f:read("*all")
f:close()
-- In case of no connection or invalid city ID
-- widgets won't display
if text == "" or text:match("City not found")
then
yawn.icon:set_image(icon_path .. "na.png")
if text == "" then
weather_data = "Service not available at the moment."
yawn.widget:set_text(" N/A ")
else
weather_data = "City not found!\n" ..
"Are you sure " .. city_id ..
" is your Yahoo city ID?"
yawn.widget:set_text(" ? ")
end
return
end
-- Processing raw data
weather_data = text:gsub("<.->", "")
weather_data = weather_data:match("Current Conditions:.-Full") or ""
-- may still happens in case of bad connectivity
if weather_data == "" then
yawn.icon:set_image(icon_path .. "na.png")
yawn.widget:set_text(" ? ")
return
end
weather_data = weather_data:gsub("Current Conditions:.-\n", "Now: ")
weather_data = weather_data:gsub("Forecast:.-\n", "")
weather_data = weather_data:gsub("\nFull", "")
weather_data = weather_data:gsub("[\n]$", "")
weather_data = weather_data:gsub(" [-] " , ": ")
weather_data = weather_data:gsub("[.]", ",")
weather_data = weather_data:gsub("High: ", "")
weather_data = weather_data:gsub(" Low: ", " - ")
-- Getting info for text widget
local now = weather_data:sub(weather_data:find("Now:")+5,
weather_data:find("\n")-1)
forecast = now:sub(1, now:find(",")-1)
units = now:sub(now:find(",")+2, -2)
-- Day/Night icon change
local hour = tonumber(os.date("%H"))
sky = icon_path
if forecast == "Clear" or
forecast == "Fair" or
forecast == "Partly Cloudy" or
forecast == "Mostly Cloudy"
then
if hour >= 6 and hour <= 18
then
sky = sky .. "Day"
else
sky = sky .. "Night"
end
end
sky = sky .. forecast:gsub(" ", ""):gsub("/", "") .. ".png"
-- In case there's no defined icon for current forecast
if io.open(sky) == nil then
sky = icon_path .. "na.png"
end
-- Localization
local f = io.open(localizations_path .. language, "r")
if language:find("en_") == nil and f ~= nil
then
f:close()
for line in io.lines(localizations_path .. language)
do
word = string.sub(line, 1, line:find("|")-1)
translation = string.sub(line, line:find("|")+1)
weather_data = string.gsub(weather_data, word, translation)
end
end
-- Finally setting infos
yawn.icon:set_image(sky)
widget = yawn.widget
forecast = weather_data:match(": %S.-,"):gsub(": ", ""):gsub(",", "")
units = units:gsub(" ", "")
settings()
end
function yawn.hide()
if notification ~= nil then
naughty.destroy(notification)
notification = nil
end
end
function yawn.show(t_out)
if yawn.widget._layout.text:match("?")
then
fetch_weather(settings)
end
yawn.hide()
notification = naughty.notify({
preset = yawn_notification_preset,
text = weather_data,
icon = sky,
timeout = t_out
})
end
function yawn.register(id, args)
local args = args or {}
local timeout = args.timeout or 600
settings = args.settings or function() end
if args.u == "f" then units_set = '?u=f&w=' end
city_id = id
newtimer("yawn", timeout, fetch_weather)
yawn.icon:connect_signal("mouse::enter", function()
yawn.show(0)
end)
yawn.icon:connect_signal("mouse::leave", function()
yawn.hide()
end)
return yawn
end
function yawn.attach(widget, id, args)
yawn.register(id, args)
widget:connect_signal("mouse::enter", function()
yawn.show(0)
end)
widget:connect_signal("mouse::leave", function()
yawn.hide()
end)
end
return setmetatable(yawn, { __call = function(_, ...) return yawn.register(...) end })
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