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|
-------------------------------------------------
-- Translate Widget based on the Yandex.Translate API
-- https://tech.yandex.com/translate/
-- @author Pavel Makhov
-- @copyright 2018 Pavel Makhov
-------------------------------------------------
local awful = require("awful")
local capi = {keygrabber = keygrabber }
local https = require("ssl.https")
local json = require("json")
local naughty = require("naughty")
local wibox = require("wibox")
local gears = require("gears")
local gfs = require("gears.filesystem")
local secrets = require("awesome-wm-widgets.secrets")
local BASE_URL = 'https://translate.yandex.net/api/v1.5/tr.json/translate'
local ICON = '/usr/share/icons/Papirus-Dark/48x48/apps/gnome-translate.svg'
--- Returns two values - string to translate and direction:
-- 'dog enfr' -> 'dog', 'en-fr'
-- @param input_string user's input which consists of
-- text to translate and direction, 'dog enfr'
local function extract(input_string)
local word, lang = input_string:match('^(.+)%s(%a%a%a%a)$')
if word ~= nill and lang ~= nill then
lang = lang:sub(1, 2) .. '-' .. lang:sub(3)
end
return word, lang
end
--- Simple url encoder - replaces spaces with '+' sign
-- @param url to encode
local function urlencode(url)
if (url) then
url = string.gsub(url, " ", "+")
end
return url
end
local w = wibox {
width = 300,
border_width = 1,
border_color = '#66ccff',
ontop = true,
expand = true,
bg = '#1e252c',
max_widget_size = 500,
shape = function(cr, width, height)
gears.shape.rounded_rect(cr, width, height, 3)
end
}
w:setup {
{
{
image = ICON,
widget = wibox.widget.imagebox,
resize = false
},
id = 'img',
layout = wibox.container.margin(_, 0, 0, 10)
},
{
{
id = 'header',
widget = wibox.widget.textbox
},
{
id = 'src',
widget = wibox.widget.textbox
},
{
id = 'res',
widget = wibox.widget.textbox
},
id = 'text',
layout = wibox.layout.fixed.vertical,
},
id = 'left',
layout = wibox.layout.fixed.horizontal
}
--- Main function - takes the user input and shows the widget with translation
-- @param request_string - user input (dog enfr)
local function translate(to_translate, lang)
local urll = BASE_URL .. '?lang=' .. lang .. '&text=' .. urlencode(to_translate) .. '&key=' .. secrets.translate_widget_api_key
local resp_json, code = https.request(urll)
if (code == 200 and resp_json ~= nil) then
local resp = json.decode(resp_json).text[1]
w.left.text.header:set_markup('<big>' .. lang .. '</big>')
w.left.text.src:set_markup('<b>' .. lang:sub(1,2) .. '</b>: <span color="#FFFFFF"> ' .. to_translate .. '</span>')
w.left.text.res:set_markup('<b>' .. lang:sub(4) .. '</b>: <span color="#FFFFFF"> ' .. resp .. '</span>')
awful.placement.top(w, { margins = {top = 40}})
local h1 = w.left.text.header:get_height_for_width(w.width, w.screen)
local h2 = w.left.text.src:get_height_for_width(w.width, w.screen)
local h3 = w.left.text.res:get_height_for_width(w.width, w.screen)
-- calculate height of the widget
w.height = h1 + h2 + h3 + 20
-- try to vertically align the icon
w.left.img:set_top((h1 + h2 + h3 + 20 - 48)/2)
w.visible = true
w:buttons(
awful.util.table.join(
awful.button({}, 1, function()
awful.spawn.with_shell("echo '" .. resp .. "' | xclip -selection clipboard")
w.visible = false
end),
awful.button({}, 3, function()
awful.spawn.with_shell("echo '" .. to_translate .."' | xclip -selection clipboard")
w.visible = false
end)
)
)
capi.keygrabber.run(function(_, key, event)
if event == "release" then return end
if key then
capi.keygrabber.stop()
w.visible = false
end
end)
else
naughty.notify({
preset = naughty.config.presets.critical,
title = 'Translate Widget Error',
text = resp_json,
})
end
end
local input_widget = wibox {
width = 300,
ontop = true,
screen = mouse.screen,
expand = true,
bg = '#1e252c',
max_widget_size = 500,
border_width = 1;
border_width = 1,
border_color = '#66ccff',
shape = function(cr, width, height)
gears.shape.rounded_rect(cr, width, height, 3)
end
}
local prompt = awful.widget.prompt()
input_widget:setup {
layout = wibox.container.margin,
prompt,
left = 10
}
local function show_translate_prompt()
awful.placement.top(input_widget, { margins = {top = 40}, parent = awful.screen.focused()})
input_widget.height = 40
input_widget.visible = true
awful.prompt.run {
prompt = "<b>Translate</b>: ",
textbox = prompt.widget,
history_path = gfs.get_dir('cache') .. '/translate_history',
bg_cursor = '#66ccff',
exe_callback = function(text)
if not text or #text == 0 then return end
local to_translate, lang = extract(text)
if not to_translate or #to_translate==0 or not lang or #lang == 0 then
naughty.notify({
preset = naughty.config.presets.critical,
title = 'Translate Widget Error',
text = 'Language is not provided',
})
return
end
translate(to_translate, lang)
end,
done_callback = function()
input_widget.visible = false
end
}
end
return {
show_translate_prompt = show_translate_prompt
}
|
