576 lines
21 KiB
Lua
576 lines
21 KiB
Lua
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-------------------------------------------------
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-- Weather Widget based on the OpenWeatherMap
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-- https://openweathermap.org/
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--
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-- @author Pavel Makhov
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-- @copyright 2020 Pavel Makhov
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-------------------------------------------------
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local awful = require("awful")
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local watch = require("awful.widget.watch")
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local json = require("json")
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local naughty = require("naughty")
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local wibox = require("wibox")
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local gears = require("gears")
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local beautiful = require("beautiful")
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local HOME_DIR = os.getenv("HOME")
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local WIDGET_DIR = HOME_DIR .. '/.config/awesome/awesome-wm-widgets/weather-widget'
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local GET_FORECAST_CMD = [[bash -c "curl -s --show-error -X GET '%s'"]]
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local SYS_LANG = os.getenv("LANG"):sub(1, 2)
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if SYS_LANG == "C" or SYS_LANG == "C." then
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-- C-locale is a common fallback for simple English
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SYS_LANG = "en"
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end
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-- default language is ENglish
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local LANG = gears.filesystem.file_readable(WIDGET_DIR .. "/" .. "locale/" ..
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SYS_LANG .. ".lua") and SYS_LANG or "en"
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local LCLE = require("awesome-wm-widgets.weather-widget.locale." .. LANG)
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local function show_warning(message)
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naughty.notify {
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preset = naughty.config.presets.critical,
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title = LCLE.warning_title,
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text = message
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}
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end
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if SYS_LANG ~= LANG then
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show_warning("Your language is not supported yet. Language set to English")
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end
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local weather_widget = {}
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local warning_shown = false
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local tooltip = awful.tooltip {
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mode = 'outside',
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preferred_positions = {'bottom'}
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}
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local weather_popup = awful.popup {
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ontop = true,
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visible = false,
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shape = gears.shape.rounded_rect,
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border_width = 1,
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border_color = beautiful.bg_focus,
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maximum_width = 400,
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offset = {y = 5},
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hide_on_right_click = true,
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widget = {}
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}
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--- Maps openWeatherMap icon name to file name w/o extension
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local icon_map = {
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["01d"] = "clear-sky",
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["02d"] = "few-clouds",
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["03d"] = "scattered-clouds",
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["04d"] = "broken-clouds",
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["09d"] = "shower-rain",
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["10d"] = "rain",
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["11d"] = "thunderstorm",
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["13d"] = "snow",
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["50d"] = "mist",
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["01n"] = "clear-sky-night",
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["02n"] = "few-clouds-night",
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["03n"] = "scattered-clouds-night",
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["04n"] = "broken-clouds-night",
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["09n"] = "shower-rain-night",
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["10n"] = "rain-night",
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["11n"] = "thunderstorm-night",
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["13n"] = "snow-night",
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["50n"] = "mist-night"
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}
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--- Return wind direction as a string
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local function to_direction(degrees)
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-- Ref: https://www.campbellsci.eu/blog/convert-wind-directions
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if degrees == nil then return "Unknown dir" end
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local directions = LCLE.directions
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return directions[math.floor((degrees % 360) / 22.5) + 1]
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end
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--- Convert degrees Celsius to Fahrenheit
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local function celsius_to_fahrenheit(c) return c * 9 / 5 + 32 end
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-- Convert degrees Fahrenheit to Celsius
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local function fahrenheit_to_celsius(f) return (f - 32) * 5 / 9 end
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local function gen_temperature_str(temp, fmt_str, show_other_units, units)
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local temp_str = string.format(fmt_str, temp)
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local s = temp_str .. '°' .. (units == 'metric' and 'C' or 'F')
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if (show_other_units) then
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local temp_conv, units_conv
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if (units == 'metric') then
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temp_conv = celsius_to_fahrenheit(temp)
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units_conv = 'F'
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else
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temp_conv = fahrenheit_to_celsius(temp)
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units_conv = 'C'
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end
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local temp_conv_str = string.format(fmt_str, temp_conv)
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s = s .. ' ' .. '(' .. temp_conv_str .. '°' .. units_conv .. ')'
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end
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return s
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end
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local function uvi_index_color(uvi)
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local color
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if uvi >= 0 and uvi < 3 then color = '#A3BE8C'
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elseif uvi >= 3 and uvi < 6 then color = '#EBCB8B'
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elseif uvi >= 6 and uvi < 8 then color = '#D08770'
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elseif uvi >= 8 and uvi < 11 then color = '#BF616A'
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elseif uvi >= 11 then color = '#B48EAD'
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end
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return '<span weight="bold" foreground="' .. color .. '">' .. uvi .. '</span>'
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end
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local function worker(user_args)
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local args = user_args or {}
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--- Validate required parameters
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if args.coordinates == nil or args.api_key == nil then
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show_warning(LCLE.parameter_warning ..
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(args.coordinates == nil and '<b>coordinates</b>' or '') ..
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(args.api_key == nil and ', <b>api_key</b> ' or ''))
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return
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end
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local coordinates = args.coordinates
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local api_key = args.api_key
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local font_name = args.font_name or beautiful.font:gsub("%s%d+$", "")
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local units = args.units or 'metric'
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local time_format_12h = args.time_format_12h
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local both_units_widget = args.both_units_widget or false
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local show_hourly_forecast = args.show_hourly_forecast
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local show_daily_forecast = args.show_daily_forecast
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local icon_pack_name = args.icons or 'weather-underground-icons'
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local icons_extension = args.icons_extension or '.png'
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local timeout = args.timeout or 120
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local ICONS_DIR = WIDGET_DIR .. '/icons/' .. icon_pack_name .. '/'
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local owm_one_cal_api =
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('https://api.openweathermap.org/data/2.5/onecall' ..
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'?lat=' .. coordinates[1] .. '&lon=' .. coordinates[2] .. '&appid=' .. api_key ..
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'&units=' .. units .. '&exclude=minutely' ..
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(show_hourly_forecast == false and ',hourly' or '') ..
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(show_daily_forecast == false and ',daily' or '') ..
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'&lang=' .. LANG)
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weather_widget = wibox.widget {
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{
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{
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{
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{
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id = 'icon',
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resize = true,
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widget = wibox.widget.imagebox
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},
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valign = 'center',
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widget = wibox.container.place,
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},
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{
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id = 'txt',
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widget = wibox.widget.textbox
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},
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layout = wibox.layout.fixed.horizontal,
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},
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left = 4,
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right = 4,
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layout = wibox.container.margin
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},
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shape = function(cr, width, height)
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gears.shape.rounded_rect(cr, width, height, 4)
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end,
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widget = wibox.container.background,
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set_image = function(self, path)
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self:get_children_by_id('icon')[1].image = path
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end,
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set_text = function(self, text)
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self:get_children_by_id('txt')[1].text = text
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end,
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is_ok = function(self, is_ok)
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if is_ok then
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self:get_children_by_id('icon')[1]:set_opacity(1)
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self:get_children_by_id('icon')[1]:emit_signal('widget:redraw_needed')
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else
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self:get_children_by_id('icon')[1]:set_opacity(0.2)
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self:get_children_by_id('icon')[1]:emit_signal('widget:redraw_needed')
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end
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end
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}
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local current_weather_widget = wibox.widget {
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{
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{
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{
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id = 'icon',
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resize = true,
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forced_width = 128,
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forced_height = 128,
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widget = wibox.widget.imagebox
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},
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align = 'center',
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widget = wibox.container.place
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},
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{
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id = 'description',
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font = font_name .. ' 10',
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align = 'center',
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widget = wibox.widget.textbox
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},
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forced_width = 128,
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layout = wibox.layout.align.vertical
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},
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{
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{
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{
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id = 'temp',
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font = font_name .. ' 36',
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widget = wibox.widget.textbox
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},
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{
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id = 'feels_like_temp',
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align = 'center',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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layout = wibox.layout.fixed.vertical
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},
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{
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{
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id = 'wind',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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{
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id = 'humidity',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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{
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id = 'uv',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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expand = 'inside',
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layout = wibox.layout.align.vertical
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},
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spacing = 16,
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forced_width = 150,
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layout = wibox.layout.fixed.vertical
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},
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forced_width = 300,
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layout = wibox.layout.flex.horizontal,
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update = function(self, weather)
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self:get_children_by_id('icon')[1]:set_image(
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ICONS_DIR .. icon_map[weather.weather[1].icon] .. icons_extension)
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self:get_children_by_id('temp')[1]:set_text(gen_temperature_str(weather.temp, '%.0f', false, units))
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self:get_children_by_id('feels_like_temp')[1]:set_text(
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LCLE.feels_like .. gen_temperature_str(weather.feels_like, '%.0f', false, units))
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self:get_children_by_id('description')[1]:set_text(weather.weather[1].description)
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self:get_children_by_id('wind')[1]:set_markup(
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LCLE.wind .. '<b>' .. weather.wind_speed .. 'm/s (' .. to_direction(weather.wind_deg) .. ')</b>')
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self:get_children_by_id('humidity')[1]:set_markup(LCLE.humidity .. '<b>' .. weather.humidity .. '%</b>')
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self:get_children_by_id('uv')[1]:set_markup(LCLE.uv .. uvi_index_color(weather.uvi))
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end
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}
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local daily_forecast_widget = {
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forced_width = 300,
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layout = wibox.layout.flex.horizontal,
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update = function(self, forecast, timezone_offset)
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local count = #self
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for i = 0, count do self[i]=nil end
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for i, day in ipairs(forecast) do
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if i > 5 then break end
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local day_forecast = wibox.widget {
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{
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text = os.date('%a', tonumber(day.dt) + tonumber(timezone_offset)),
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align = 'center',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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{
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{
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{
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image = ICONS_DIR .. icon_map[day.weather[1].icon] .. icons_extension,
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resize = true,
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forced_width = 48,
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forced_height = 48,
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widget = wibox.widget.imagebox
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},
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align = 'center',
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layout = wibox.container.place
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},
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{
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text = day.weather[1].description,
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font = font_name .. ' 8',
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align = 'center',
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forced_height = 50,
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widget = wibox.widget.textbox
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},
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layout = wibox.layout.fixed.vertical
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},
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{
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{
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text = gen_temperature_str(day.temp.day, '%.0f', false, units),
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align = 'center',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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{
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text = gen_temperature_str(day.temp.night, '%.0f', false, units),
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align = 'center',
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font = font_name .. ' 9',
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widget = wibox.widget.textbox
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},
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layout = wibox.layout.fixed.vertical
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},
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spacing = 8,
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layout = wibox.layout.fixed.vertical
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}
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table.insert(self, day_forecast)
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end
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end
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}
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local hourly_forecast_graph = wibox.widget {
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step_width = 12,
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color = '#EBCB8B',
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background_color = beautiful.bg_normal,
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forced_height = 100,
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forced_width = 300,
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widget = wibox.widget.graph,
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set_max_value = function(self, new_max_value)
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self.max_value = new_max_value
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end,
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set_min_value = function(self, new_min_value)
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self.min_value = new_min_value
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end
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}
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local hourly_forecast_negative_graph = wibox.widget {
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step_width = 12,
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color = '#5E81AC',
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background_color = beautiful.bg_normal,
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forced_height = 100,
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forced_width = 300,
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widget = wibox.widget.graph,
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set_max_value = function(self, new_max_value)
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self.max_value = new_max_value
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end,
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|
|
set_min_value = function(self, new_min_value)
|
||
|
|
self.min_value = new_min_value
|
||
|
|
end
|
||
|
|
}
|
||
|
|
|
||
|
|
local hourly_forecast_widget = {
|
||
|
|
layout = wibox.layout.fixed.vertical,
|
||
|
|
update = function(self, hourly)
|
||
|
|
local hours_below = {
|
||
|
|
id = 'hours',
|
||
|
|
forced_width = 300,
|
||
|
|
layout = wibox.layout.flex.horizontal
|
||
|
|
}
|
||
|
|
local temp_below = {
|
||
|
|
id = 'temp',
|
||
|
|
forced_width = 300,
|
||
|
|
layout = wibox.layout.flex.horizontal
|
||
|
|
}
|
||
|
|
|
||
|
|
local max_temp = -1000
|
||
|
|
local min_temp = 1000
|
||
|
|
local values = {}
|
||
|
|
for i, hour in ipairs(hourly) do
|
||
|
|
if i > 25 then break end
|
||
|
|
values[i] = hour.temp
|
||
|
|
if max_temp < hour.temp then max_temp = hour.temp end
|
||
|
|
if min_temp > hour.temp then min_temp = hour.temp end
|
||
|
|
if (i - 1) % 5 == 0 then
|
||
|
|
table.insert(hours_below, wibox.widget {
|
||
|
|
text = os.date(time_format_12h and '%I%p' or '%H:00', tonumber(hour.dt)),
|
||
|
|
align = 'center',
|
||
|
|
font = font_name .. ' 9',
|
||
|
|
widget = wibox.widget.textbox
|
||
|
|
})
|
||
|
|
table.insert(temp_below, wibox.widget {
|
||
|
|
markup = '<span foreground="'
|
||
|
|
.. (tonumber(hour.temp) > 0 and '#2E3440' or '#ECEFF4') .. '">'
|
||
|
|
.. string.format('%.0f', hour.temp) .. '°' .. '</span>',
|
||
|
|
align = 'center',
|
||
|
|
font = font_name .. ' 9',
|
||
|
|
widget = wibox.widget.textbox
|
||
|
|
})
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
hourly_forecast_graph:set_max_value(math.max(max_temp, math.abs(min_temp)))
|
||
|
|
hourly_forecast_graph:set_min_value(min_temp > 0 and min_temp * 0.7 or 0) -- move graph a bit up
|
||
|
|
|
||
|
|
hourly_forecast_negative_graph:set_max_value(math.abs(min_temp))
|
||
|
|
hourly_forecast_negative_graph:set_min_value(max_temp < 0 and math.abs(max_temp) * 0.7 or 0)
|
||
|
|
|
||
|
|
for _, value in ipairs(values) do
|
||
|
|
if value >= 0 then
|
||
|
|
hourly_forecast_graph:add_value(value)
|
||
|
|
hourly_forecast_negative_graph:add_value(0)
|
||
|
|
else
|
||
|
|
hourly_forecast_graph:add_value(0)
|
||
|
|
hourly_forecast_negative_graph:add_value(math.abs(value))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
local count = #self
|
||
|
|
for i = 0, count do self[i]=nil end
|
||
|
|
|
||
|
|
-- all temperatures are positive
|
||
|
|
if min_temp > 0 then
|
||
|
|
table.insert(self, wibox.widget{
|
||
|
|
{
|
||
|
|
hourly_forecast_graph,
|
||
|
|
reflection = {horizontal = true},
|
||
|
|
widget = wibox.container.mirror
|
||
|
|
},
|
||
|
|
{
|
||
|
|
temp_below,
|
||
|
|
valign = 'bottom',
|
||
|
|
widget = wibox.container.place
|
||
|
|
},
|
||
|
|
id = 'graph',
|
||
|
|
layout = wibox.layout.stack
|
||
|
|
})
|
||
|
|
table.insert(self, hours_below)
|
||
|
|
|
||
|
|
-- all temperatures are negative
|
||
|
|
elseif max_temp < 0 then
|
||
|
|
table.insert(self, hours_below)
|
||
|
|
table.insert(self, wibox.widget{
|
||
|
|
{
|
||
|
|
hourly_forecast_negative_graph,
|
||
|
|
reflection = {horizontal = true, vertical = true},
|
||
|
|
widget = wibox.container.mirror
|
||
|
|
},
|
||
|
|
{
|
||
|
|
temp_below,
|
||
|
|
valign = 'top',
|
||
|
|
widget = wibox.container.place
|
||
|
|
},
|
||
|
|
id = 'graph',
|
||
|
|
layout = wibox.layout.stack
|
||
|
|
})
|
||
|
|
|
||
|
|
-- there are both negative and positive temperatures
|
||
|
|
else
|
||
|
|
table.insert(self, wibox.widget{
|
||
|
|
{
|
||
|
|
hourly_forecast_graph,
|
||
|
|
reflection = {horizontal = true},
|
||
|
|
widget = wibox.container.mirror
|
||
|
|
},
|
||
|
|
{
|
||
|
|
temp_below,
|
||
|
|
valign = 'bottom',
|
||
|
|
widget = wibox.container.place
|
||
|
|
},
|
||
|
|
id = 'graph',
|
||
|
|
layout = wibox.layout.stack
|
||
|
|
})
|
||
|
|
table.insert(self, wibox.widget{
|
||
|
|
{
|
||
|
|
hourly_forecast_negative_graph,
|
||
|
|
reflection = {horizontal = true, vertical = true},
|
||
|
|
widget = wibox.container.mirror
|
||
|
|
},
|
||
|
|
{
|
||
|
|
hours_below,
|
||
|
|
valign = 'top',
|
||
|
|
widget = wibox.container.place
|
||
|
|
},
|
||
|
|
id = 'graph',
|
||
|
|
layout = wibox.layout.stack
|
||
|
|
})
|
||
|
|
end
|
||
|
|
end
|
||
|
|
}
|
||
|
|
|
||
|
|
local function update_widget(widget, stdout, stderr)
|
||
|
|
if stderr ~= '' then
|
||
|
|
if not warning_shown then
|
||
|
|
if (stderr ~= 'curl: (52) Empty reply from server'
|
||
|
|
and stderr ~= 'curl: (28) Failed to connect to api.openweathermap.org port 443: Connection timed out'
|
||
|
|
and stderr:find('^curl: %(18%) transfer closed with %d+ bytes remaining to read$') ~= nil
|
||
|
|
) then
|
||
|
|
show_warning(stderr)
|
||
|
|
end
|
||
|
|
warning_shown = true
|
||
|
|
widget:is_ok(false)
|
||
|
|
tooltip:add_to_object(widget)
|
||
|
|
|
||
|
|
widget:connect_signal('mouse::enter', function() tooltip.text = stderr end)
|
||
|
|
end
|
||
|
|
return
|
||
|
|
end
|
||
|
|
|
||
|
|
warning_shown = false
|
||
|
|
tooltip:remove_from_object(widget)
|
||
|
|
widget:is_ok(true)
|
||
|
|
|
||
|
|
local result = json.decode(stdout)
|
||
|
|
|
||
|
|
widget:set_image(ICONS_DIR .. icon_map[result.current.weather[1].icon] .. icons_extension)
|
||
|
|
widget:set_text(gen_temperature_str(result.current.temp, '%.0f', both_units_widget, units))
|
||
|
|
|
||
|
|
current_weather_widget:update(result.current)
|
||
|
|
|
||
|
|
local final_widget = {
|
||
|
|
current_weather_widget,
|
||
|
|
spacing = 16,
|
||
|
|
layout = wibox.layout.fixed.vertical
|
||
|
|
}
|
||
|
|
|
||
|
|
if show_hourly_forecast then
|
||
|
|
hourly_forecast_widget:update(result.hourly)
|
||
|
|
table.insert(final_widget, hourly_forecast_widget)
|
||
|
|
end
|
||
|
|
|
||
|
|
if show_daily_forecast then
|
||
|
|
daily_forecast_widget:update(result.daily, result.timezone_offset)
|
||
|
|
table.insert(final_widget, daily_forecast_widget)
|
||
|
|
end
|
||
|
|
|
||
|
|
weather_popup:setup({
|
||
|
|
{
|
||
|
|
final_widget,
|
||
|
|
margins = 10,
|
||
|
|
widget = wibox.container.margin
|
||
|
|
},
|
||
|
|
bg = beautiful.bg_normal,
|
||
|
|
widget = wibox.container.background
|
||
|
|
})
|
||
|
|
end
|
||
|
|
|
||
|
|
weather_widget:buttons(gears.table.join(awful.button({}, 1, function()
|
||
|
|
if weather_popup.visible then
|
||
|
|
weather_widget:set_bg('#00000000')
|
||
|
|
weather_popup.visible = not weather_popup.visible
|
||
|
|
else
|
||
|
|
weather_widget:set_bg(beautiful.bg_focus)
|
||
|
|
weather_popup:move_next_to(mouse.current_widget_geometry)
|
||
|
|
end
|
||
|
|
end)))
|
||
|
|
|
||
|
|
watch(
|
||
|
|
string.format(GET_FORECAST_CMD, owm_one_cal_api),
|
||
|
|
timeout, -- API limit is 1k req/day; day has 1440 min; every 2 min is good
|
||
|
|
update_widget, weather_widget
|
||
|
|
)
|
||
|
|
|
||
|
|
return weather_widget
|
||
|
|
end
|
||
|
|
|
||
|
|
return setmetatable(weather_widget, {__call = function(_, ...) return worker(...) end})
|