moved to personal fennel config for awesome and added qutebrowser
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502 changed files with 8576 additions and 9597 deletions
476
awes2/widget/calculator/init.lua
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476
awes2/widget/calculator/init.lua
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----------------------------------------------------------------------------
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--- Basic Calculator Widget
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--
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--
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-- For more details check my repos README.md
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--
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--
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-- @author manilarome <gerome.matilla07@gmail.com>
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-- @copyright 2019 manilarome
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-- @widget calculator
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----------------------------------------------------------------------------
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-- A basic calculator widget
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-- Supports keyboard input!
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-- Just hover your cursor above the calculator widget and start typing
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-- Stop keygrabbing by leaving the calculator
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local awful = require('awful')
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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 dpi = beautiful.xresources.apply_dpi
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local clickable_container = require('widget.clickable-container')
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local config_dir = gears.filesystem.get_configuration_dir()
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local widget_icon_dir = config_dir .. 'widget/calculator/icons/'
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local calculator_screen = wibox.widget {
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{
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id = 'calcu_screen',
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text = '0',
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font = 'SF Pro Text Regular 20',
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align = 'right',
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valign = 'center',
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widget = wibox.widget.textbox,
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},
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margins = dpi(5),
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widget = wibox.container.margin
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}
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-- Evaluate
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local calculate = function ()
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local calcu_screen = calculator_screen.calcu_screen
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local string_expression = calcu_screen:get_text()
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if string_expression:sub(-1):match("[%+%-%/%*%^%.]") then
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return
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end
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local func = assert(load("return " .. string_expression))
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local ans = tostring(func())
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-- Convert -nan to undefined
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if ans == '-nan' then
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calcu_screen:set_text('undefined')
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return
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end
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-- Set the answer in textbox
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calcu_screen:set_text(ans)
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end
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local txt_on_screen = function()
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screen_text = calculator_screen.calcu_screen:get_text()
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return screen_text == 'inf' or screen_text == 'undefined' or screen_text == 'SYNTAX ERROR' or #screen_text == 1
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end
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-- Delete the last digit in screen
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local delete_value = function()
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calcu_screen = calculator_screen.calcu_screen
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-- Set the screen text to 0 if conditions met
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if txt_on_screen() then
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calcu_screen:set_text('0')
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else
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-- Delete the last digit
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calcu_screen:set_text(calcu_screen:get_text():sub(1, -2))
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end
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end
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-- Clear screen
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local clear_screen = function()
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calculator_screen.calcu_screen:set_text('0')
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end
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-- The one that filters and checks the user input to avoid errors and bugs
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local format_screen = function(value)
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local calcu_screen = calculator_screen.calcu_screen
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-- If the screen has only 0
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if calcu_screen:get_text() == '0' then
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-- Check if the button pressed sends a value of either +, -, /, *, ^, .
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if value:sub(-1):match("[%+%/%*%^%.]") then
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calcu_screen:set_text(calcu_screen:get_text() .. tostring(value))
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else
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calcu_screen:set_text(value)
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end
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elseif calcu_screen:get_text() == 'inf' or
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calcu_screen:get_text() == 'undefined' or
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calcu_screen:get_text() == 'SYNTAX ERROR' then
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-- Clear screen if an operator is selected
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if value:sub(-1):match("[%+%/%*%^%.]") then
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clear_screen()
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else
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-- Replace screen txt with the number value pressed
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clear_screen()
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calcu_screen:set_text(tostring(value))
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end
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else
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-- Don't let the user to input two or more consecutive arithmetic operators and decimals
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if calcu_screen:get_text():sub(-1):match("[%+%-%/%*%^%.]") and value:sub(-1):match("[%+%-%/%*%^%.%%]") then
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-- Get the operator from button pressed
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local string_eval = calcu_screen:get_text():sub(-1):gsub("[%+%-%/%*%^%.]", value)
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-- This will prevent the user to input consecutive operators and decimals
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-- It will replace the previous operator with the value of input
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calcu_screen:set_text(calcu_screen:get_text():sub(1, -2))
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-- Concatenate the value operator to the screen string to replace the deleted operator
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calcu_screen:set_text(calcu_screen:get_text() .. tostring(string_eval))
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else
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-- Concatenate the value to screen string
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calcu_screen:set_text(calcu_screen:get_text() .. tostring(value))
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end
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end
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end
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-- Shape generator
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local build_shape = function (position, radius)
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-- Position represents the position of rounded corners
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if position == 'top' then
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return function(cr, width, height)
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gears.shape.partially_rounded_rect(cr, width, height, true, true, false, false, radius)
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end
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elseif position == 'top_left' then
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return function(cr, width, height)
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gears.shape.partially_rounded_rect(cr, width, height, true, false, false, false, radius)
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end
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elseif position == 'top_right' then
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return function(cr, width, height)
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gears.shape.partially_rounded_rect(cr, width, height, false, true, false, false, radius)
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end
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elseif position == 'bottom_right' then
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return function(cr, width, height)
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gears.shape.partially_rounded_rect(cr, width, height, false, false, true, false, radius)
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end
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elseif position == 'bottom_left' then
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return function(cr, width, height)
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gears.shape.partially_rounded_rect(cr, width, height, false, false, false, true, radius)
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end
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else
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return function(cr, width, height)
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gears.shape.rounded_rect(cr, width, height, radius)
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end
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end
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end
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-- Themes widgets
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local decorate_widget = function(widget_arg, pos, rad)
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return wibox.widget {
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widget_arg,
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bg = beautiful.groups_bg,
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shape = build_shape(pos, rad),
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widget = wibox.container.background
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}
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end
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-- Build a button
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local build_button_widget = function(text, rcp, rad)
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local value = text
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local build_textbox = wibox.widget {
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{
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id = 'btn_name',
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text = value,
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font = 'SF Pro Text 12',
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align = 'center',
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valign = 'center',
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widget = wibox.widget.textbox,
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},
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margins = dpi(5),
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widget = wibox.container.margin
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}
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local build_button = wibox.widget {
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{
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build_textbox,
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margins = dpi(7),
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widget = wibox.container.margin
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},
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widget = clickable_container
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}
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build_button:buttons(
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gears.table.join(
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awful.button(
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{},
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1,
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nil,
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function ()
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if value == 'C' then
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clear_screen()
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elseif value == '=' then
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-- Calculate and error handling
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if not pcall(calculate) then
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calculator_screen.calcu_screen:set_text('SYNTAX ERROR')
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end
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elseif value == 'DEL' then
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delete_value()
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else
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format_screen(value)
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end
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end
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)
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)
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)
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return decorate_widget(build_button, rcp, rad)
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end
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local keygrab_running = false
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local kb_imagebox = wibox.widget {
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id = 'kb_icon',
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image = widget_icon_dir .. 'kb-off' .. '.svg',
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resize = true,
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forced_height = dpi(15),
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widget = wibox.widget.imagebox
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}
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local kb_button_widget = wibox.widget {
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{
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{
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{
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layout = wibox.layout.align.horizontal,
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expand = 'none',
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nil,
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kb_imagebox,
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nil
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},
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margins = dpi(10),
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widget = wibox.container.margin
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},
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widget = clickable_container
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},
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bg = beautiful.groups_bg,
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shape = build_shape('bottom_left', beautiful.groups_radius),
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widget = wibox.container.background
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}
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local toggle_btn_keygrab = function()
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if keygrab_running then
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kb_imagebox:set_image(widget_icon_dir .. 'kb-off' .. '.svg')
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awesome.emit_signal("widget::calc_stop_keygrab")
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keygrab_running = false
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else
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kb_imagebox:set_image(widget_icon_dir .. 'kb' .. '.svg')
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awesome.emit_signal("widget::calc_start_keygrab")
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keygrab_running = true
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end
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end
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local kb_button = kb_button_widget
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kb_button:buttons(
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gears.table.join(
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awful.button(
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{},
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1,
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nil,
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function()
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toggle_btn_keygrab()
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end
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)
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)
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)
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local calcu_keygrabber = awful.keygrabber {
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auto_start = true,
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stop_event = 'release',
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start_callback = function()
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keygrab_running = true
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kb_imagebox:set_image(widget_icon_dir .. 'kb' .. '.svg')
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end,
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stop_callback = function()
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keygrab_running = false
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kb_imagebox:set_image(widget_icon_dir .. 'kb-off' .. '.svg')
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end,
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keypressed_callback = function(self, mod, key, command)
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if #key == 1 and (key:match('%d+') or key:match('[%+%-%/%*%^%.]')) then
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format_screen(key)
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elseif key == 'BackSpace' then
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delete_value()
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elseif key == 'Escape' then
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clear_screen()
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elseif key == 'x' then
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awesome.emit_signal("widget::calc_stop_keygrab")
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elseif key == '=' or key == 'Return' then
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-- Calculate
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if not pcall(calculate) then
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calculator_screen.calcu_screen:set_text('SYNTAX ERROR')
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end
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end
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end,
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}
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local calculator_body = wibox.widget {
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layout = wibox.layout.fixed.vertical,
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spacing = dpi(1),
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{
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spacing = dpi(1),
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layout = wibox.layout.flex.horizontal,
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decorate_widget(calculator_screen, 'top', beautiful.groups_radius),
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},
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{
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spacing = dpi(1),
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layout = wibox.layout.flex.horizontal,
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build_button_widget('C', 'flat' , 0),
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build_button_widget('^', 'flat', 0),
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build_button_widget('/', 'flat', 0),
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build_button_widget('DEL', 'flat', 0),
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},
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{
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spacing = dpi(1),
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layout = wibox.layout.flex.horizontal,
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build_button_widget('7', 'flat', 0),
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build_button_widget('8', 'flat', 0),
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build_button_widget('9', 'flat', 0),
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build_button_widget('*', 'flat', 0),
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},
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{
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spacing = dpi(1),
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layout = wibox.layout.flex.horizontal,
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build_button_widget('4', 'flat', 0),
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build_button_widget('5', 'flat', 0),
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build_button_widget('6', 'flat', 0),
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build_button_widget('-', 'flat', 0),
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},
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{
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spacing = dpi(1),
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layout = wibox.layout.flex.horizontal,
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build_button_widget('1', 'flat', 0),
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build_button_widget('2', 'flat', 0),
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build_button_widget('3', 'flat', 0),
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build_button_widget('+', 'flat', 0),
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},
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{
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spacing = dpi(1),
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layout = wibox.layout.flex.horizontal,
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kb_button,
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build_button_widget('0', 'flat', 0),
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build_button_widget('.', 'flat', 0),
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build_button_widget('=', 'bottom_right', beautiful.groups_radius)
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},
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}
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calculator_body:connect_signal(
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"mouse::enter",
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function()
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-- Start keygrabbing
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calcu_keygrabber:start()
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end
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)
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calculator_body:connect_signal(
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"mouse::leave",
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function()
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-- Stop keygrabbing
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calcu_keygrabber:stop()
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end
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)
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awesome.connect_signal(
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"widget::calc_start_keygrab",
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function()
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-- Stop keygrabbing
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calcu_keygrabber:start()
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end
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)
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awesome.connect_signal(
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"widget::calc_stop_keygrab",
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function()
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-- Stop keygrabbing
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calcu_keygrabber:stop()
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end
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)
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local calcu_tooltip = awful.tooltip {
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objects = {kb_button},
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mode = 'outside',
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align = 'right',
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delay_show = 1,
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preferred_positions = {'right', 'left', 'top', 'bottom'},
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margin_leftright = dpi(8),
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margin_topbottom = dpi(8),
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markup = [[
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<b>Tips:</b>
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Enable keyboard support by hovering your mouse above the calculator.
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Or toggle it on/off by pressing the keyboard button.
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Only numbers, arithmetic operators, and decimal point is accepted.
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<b>Keyboard bindings:</b>
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<b>=</b> and <b>Return</b> to get the answer.
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<b>BackSpace</b> to delete the last digit.
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<b>Escape</b> clears the screen.
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<b>x</b> stops keygrabbing.
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<b>Note:</b>
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While in keygrabbing mode, your keyboard's focus will be on the calculator.
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So you're AwesomeWM keybinding will stop working.
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<b>Stopping the keygrabbing mode:</b>
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* Move away your cursor from the calculator.
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* Toggle it off using the keyboard button.
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* Press <b>x</b>.
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]]
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}
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return calculator_body
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