rc.lua

-- If LuaRocks is installed, make sure that packages installed through it are
-- found (e.g. lgi). If LuaRocks is not installed, do nothing.
pcall(require, "luarocks.loader")

-- Standard awesome library
local gears = require("gears")
local awful = require("awful")
-- Widget and layout library
local wibox = require("wibox")
-- Theme handling library
local beautiful = require("beautiful")
-- Notification library
local naughty = require("naughty")
local menubar = require("menubar")
-- Enable hotkeys help widget for VIM and other apps
-- when client with a matching name is opened:
require("awful.hotkeys_popup.keys")
require("awful.autofocus")

-- self-defined modules
local globalkeys = require("keyMaps").globalkeys
local constants = require("constants")

-- {{{ Error handling
-- Check if awesome encountered an error during startup and fell back to
-- another config (This code will only ever execute for the fallback config)
if awesome.startup_errors then
	naughty.notify({
		preset = naughty.config.presets.critical,
		title = "Oops, there were errors during startup!",
		text = awesome.startup_errors,
	})
end

-- Handle runtime errors after startup
do
	local in_error = false
	awesome.connect_signal("debug::error", function(err)
		-- Make sure we don't go into an endless error loop
		if in_error then
			return
		end
		in_error = true

		naughty.notify({
			preset = naughty.config.presets.critical,
			title = "Oops, an error happened!",
			text = tostring(err),
		})
		in_error = false
	end)
end
-- }}}

-- {{{ Variable definitions
-- Themes define colours, icons, font and wallpapers.
beautiful.init(gears.filesystem.get_configuration_dir() .. "theme.lua")

-- Default modkey.
-- Usually, Mod4 is the key with a logo between Control and Alt.
-- If you do not like this or do not have such a key,
-- I suggest you to remap Mod4 to another key using xmodmap or other tools.
-- However, you can use another modifier like Mod1, but it may interact with others.
local modkey = constants.modkey
local alt = constants.alt
-- This is used later as the default terminal and editor to run.
local terminal = constants.terminal

-- Table of layouts to cover with awful.layout.inc, order matters.
awful.layout.layouts = {
	awful.layout.suit.tile,
	awful.layout.suit.floating,
	awful.layout.suit.max.fullscreen,
	awful.layout.suit.magnifier,
}
-- }}}

-- {{{ Menu
-- Create a launcher widget and a main menu
local mymainmenu = require("menu")
local mylauncher = awful.widget.launcher({ image = beautiful.awesome_icon, menu = mymainmenu })

-- Menubar configuration
menubar.utils.terminal = terminal -- Set the terminal for applications that require it
-- }}}

-- Keyboard map indicator and switcher
local mykeyboardlayout = awful.widget.keyboardlayout()

-- {{{ Wibar
-- Create a textclock widget
local mytextclock = wibox.widget.textclock(" %a %b/%d/%Y  %I:%M %p ")

-- Create a wibox for each screen and add it
local taglist_buttons = gears.table.join(
	awful.button({}, 1, function(t)
		t:view_only()
	end),
	awful.button({ modkey }, 1, function(t)
		if client.focus then
			client.focus:move_to_tag(t)
		end
	end),
	awful.button({}, 3, awful.tag.viewtoggle),
	awful.button({ modkey }, 3, function(t)
		if client.focus then
			client.focus:toggle_tag(t)
		end
	end),
	awful.button({}, 4, function(t)
		awful.tag.viewnext(t.screen)
	end),
	awful.button({}, 5, function(t)
		awful.tag.viewprev(t.screen)
	end)
)

local tasklist_buttons = gears.table.join(
	awful.button({}, 1, function(c)
		if c == client.focus then
			c.minimized = true
		else
			c:emit_signal("request::activate", "tasklist", { raise = true })
		end
	end),
	awful.button({}, 3, function()
		awful.menu.client_list({ theme = { width = 250 } })
	end),
	awful.button({}, 4, function()
		awful.client.focus.byidx(1)
	end),
	awful.button({}, 5, function()
		awful.client.focus.byidx(-1)
	end)
)

local function set_wallpaper(s)
	-- Wallpaper
	if beautiful.wallpaper then
		local wallpaper = beautiful.wallpaper
		-- If wallpaper is a function, call it with the screen
		if type(wallpaper) == "function" then
			wallpaper = wallpaper(s)
		end
		gears.wallpaper.maximized(wallpaper, s, true)
	end
end

-- Re-set wallpaper when a screen's geometry changes (e.g. different resolution)
screen.connect_signal("property::geometry", set_wallpaper)

-- Hide border for single clients
-- Reference
-- https://stackoverflow.com/questions/30324250/how-to-hide-borders-dynamically-from-windows-when-not-tiled-awesome-wm
screen.connect_signal("arrange", function(s)
	local max = s.selected_tag.name == "max"
	local only_one = #s.tiled_clients == 1
	for _, c in pairs(s.clients) do
		if (max or only_one) and not c.floating or c.maximized then
			c.border_width = 0
		else
			c.border_width = beautiful.border_width
		end
	end
end)

awful.screen.connect_for_each_screen(function(s)
	-- Wallpaper
	set_wallpaper(s)

	-- Each screen has its own tag table.
	awful.tag({ "1", "2", "3", "4", "5", "6", "7", "8", "9" }, s, awful.layout.layouts[1])

	-- Create a promptbox for each screen
	s.mypromptbox = awful.widget.prompt()
	-- Create an imagebox widget which will contain an icon indicating which layout we're using.
	-- We need one layoutbox per screen.
	s.mylayoutbox = awful.widget.layoutbox(s)
	s.mylayoutbox:buttons(gears.table.join(
		awful.button({}, 1, function()
			awful.layout.inc(1)
		end),
		awful.button({}, 3, function()
			awful.layout.inc(-1)
		end),
		awful.button({}, 4, function()
			awful.layout.inc(1)
		end),
		awful.button({}, 5, function()
			awful.layout.inc(-1)
		end)
	))
	-- Create a taglist widget
	s.mytaglist = awful.widget.taglist({
		screen = s,
		filter = awful.widget.taglist.filter.all,
		buttons = taglist_buttons,
	})

	-- Create a tasklist widget
	s.mytasklist = awful.widget.tasklist({
		screen = s,
		filter = awful.widget.tasklist.filter.currenttags,
		buttons = tasklist_buttons,
	})

	-- Create the wibox
	s.mywibox = awful.wibar({ position = "top", screen = s })

	-- Add widgets to the wibox
	s.mywibox:setup({
		layout = wibox.layout.align.horizontal,
		{ -- Left widgets
			layout = wibox.layout.fixed.horizontal,
			mylauncher,
			s.mytaglist,
			s.mypromptbox,
		},
		s.mytasklist, -- Middle widget
		{ -- Right widgets
			layout = wibox.layout.fixed.horizontal,
			wibox.widget.textbox(" ﯧ "),
			awful.widget.watch("fish -c 'math (brightnessctl g) \\/ (brightnessctl m) \\* 100'", 2),
			wibox.widget.textbox("  "),
			awful.widget.watch("bash -c '~/.config/mybin/get-volume.sh'", 2),
			wibox.widget.textbox("  "),
			mykeyboardlayout,
			mytextclock,
			s.mylayoutbox,
			wibox.widget.systray(),
		},
	})
end)
-- }}}

--[[
Move target client to a different tag.
Moves focus as well if changeFocus property is set to true.
--]]
local function moveClient(client, i, changeFocus)
	return function()
		if client.focus then
			local tag = client.focus.screen.tags[i]
			if tag then
				client.focus:move_to_tag(tag)
				if changeFocus then
					tag:view_only()
				end
			end
		end
	end
end

-- Bind all key numbers to tags.
-- Be careful: we use keycodes to make it work on any keyboard layout.
-- This should map on the top row of your keyboard, usually 1 to 9.
for i = 1, 9 do
	globalkeys = gears.table.join(
		globalkeys,
		-- View tag only.
		awful.key({ modkey }, "#" .. i + 9, function()
			local screen = awful.screen.focused()
			local tag = screen.tags[i]
			if tag then
				tag:view_only()
			end
		end, { description = "view tag #" .. i, group = "tag" }),
		-- Toggle tag display.
		awful.key({ modkey, "Control" }, "#" .. i + 9, function()
			local screen = awful.screen.focused()
			local tag = screen.tags[i]
			if tag then
				awful.tag.viewtoggle(tag)
			end
		end, { description = "toggle tag #" .. i, group = "tag" }),
		-- Move client and focus to tag.
		awful.key(
			{ modkey, "Shift" },
			"#" .. i + 9,
			moveClient(client, i, true),
			{ description = "move focused client and focus to tag #" .. i, group = "tag" }
		),
		-- Move client to tag.
		awful.key(
			{ alt, "Shift" },
			"#" .. i + 9,
			moveClient(client, i, false),
			{ description = "move focused client to tag #" .. i, group = "tag" }
		),
		-- Toggle tag on focused client.
		awful.key({ modkey, "Control", "Shift" }, "#" .. i + 9, function()
			if client.focus then
				local tag = client.focus.screen.tags[i]
				if tag then
					client.focus:toggle_tag(tag)
				end
			end
		end, { description = "toggle focused client on tag #" .. i, group = "tag" })
	)
end

-- Set keys
root.keys(globalkeys)
-- Mouse bindings
root.buttons(require("buttonMaps").mouseButtons)
-- }}}

-- {{{ Rules
-- Rules to apply to new clients (through the "manage" signal).
awful.rules.rules = require("windowRules")
-- }}}

-- {{{ Signals
-- Signal function to execute when a new client appears.
client.connect_signal("manage", function(c)
	-- Set the windows at the slave,
	-- i.e. put it at the end of others instead of setting it master.
	-- if not awesome.startup then awful.client.setslave(c) end

	if awesome.startup and not c.size_hints.user_position and not c.size_hints.program_position then
		-- Prevent clients from being unreachable after screen count changes.
		awful.placement.no_offscreen(c)
	end
end)

-- Add a titlebar if titlebars_enabled is set to true in the rules.
client.connect_signal("request::titlebars", function(c)
	-- buttons for the titlebar
	local buttons = gears.table.join(
		awful.button({}, 1, function()
			c:emit_signal("request::activate", "titlebar", { raise = true })
			awful.mouse.client.move(c)
		end),
		awful.button({}, 3, function()
			c:emit_signal("request::activate", "titlebar", { raise = true })
			awful.mouse.client.resize(c)
		end)
	)

	awful.titlebar(c):setup({
		{ -- Left
			awful.titlebar.widget.iconwidget(c),
			buttons = buttons,
			layout = wibox.layout.fixed.horizontal,
		},
		{ -- Middle
			{ -- Title
				align = "center",
				widget = awful.titlebar.widget.titlewidget(c),
			},
			buttons = buttons,
			layout = wibox.layout.flex.horizontal,
		},
		{ -- Right
			awful.titlebar.widget.floatingbutton(c),
			awful.titlebar.widget.maximizedbutton(c),
			awful.titlebar.widget.stickybutton(c),
			awful.titlebar.widget.ontopbutton(c),
			awful.titlebar.widget.closebutton(c),
			layout = wibox.layout.fixed.horizontal(),
		},
		layout = wibox.layout.align.horizontal,
	})
end)

-- Enable sloppy focus, so that focus follows mouse.
client.connect_signal("mouse::enter", function(c)
	c:emit_signal("request::activate", "mouse_enter", { raise = false })
end)

client.connect_signal("focus", function(c)
	c.border_color = beautiful.border_focus
end)
client.connect_signal("unfocus", function(c)
	c.border_color = beautiful.border_normal
end)
-- }}}

-- Autorun programs
if constants.autorun then
	for app = 1, #constants.autorunApps do
		awful.spawn.single_instance(constants.autorunApps[app])
	end
end