awesome // rc.lua

-- Standard awesome library
require("awful")
require("awful.autofocus")
require("awful.rules")
-- Theme handling library
require("beautiful")
-- Notification library
require("naughty")
-- shifty - dynamic tagging library
require("shifty")

-- {{{ 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.add_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 = err })
        in_error = false
    end)
end
-- }}}

-- useful for debugging, marks the beginning of rc.lua exec
print("Entered rc.lua: " .. os.time())

-- {{{ Variable definitions
-- Themes define colours, icons, and wallpapers
beautiful.init(awful.util.getdir("config") .. "/themes/own/theme.lua")

-- This is used later as the default terminal and editor to run.
terminal = "urxvt"
editor = os.getenv("EDITOR") or "nano"
editor_cmd = editor
browser = os.getenv("BROWSER")
mail = terminal .. " -e mutt"
office = "soffice"
screenlock = "slock"
alsa_mute = "amixer -q set Master toggle"
alsa_lower = "amixer -q set Master 5dB-"
alsa_raise = "amixer -q set Master 5dB+"
backlight_inc = "xbacklight -inc 10"
backlight_dec = "xbacklight -dec 10"

-- 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.
modkey = "Mod4"

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

-- Define if we want to use titlebar on all applications.
use_titlebar = false

-- Shifty configured tags.
shifty.config.tags = {
    ["1:term"] = {
        layout      = awful.layout.suit.tile.bottom,
        mwfact      = 0.60,
        position    = 1,
        init        = true,
        screen      = screen.count(),
        spawn       = terminal,
        exclusive   = true,
    },
    ["2:web"] = {
        layout      = awful.layout.suit.max,
        position    = 2,
        screen      = 1,
        spawn       = browser,
        exclusive   = true,
    },
    ["3:view"] = {
        layout      = awful.layout.suit.max,
        position    = 3,
        screen      = 1,
        spawn       = "evince"
    },
    ["4:edit"] = {
        layout      = awful.layout.suit.max,
        position    = 4,
        screen      = screen.count(),
        spawn       = editor_cmd
    },
    ["5:office"] = {
        layout      = awful.layout.suit.tile,
        position    = 5,
        screen      = screen.count(),
        spawn       = office
    },
    ["6:dev"] = {
        layout      = awful.layout.suit.max,
        position    = 6,
        screen      = screen.count(),
    },
    ["7:soc"] = {
        layout      = awful.layout.suit.tile,
        position    = 7,
        screen      = screen.count(),
    },
    ["8:media"] = {
        layout      = awful.layout.suit.tile,
        position    = 8,
        screen      = 1,
    },
    ["9:mail"] = {
        layout      = awful.layout.suit.max,
        position    = 9,
        screen      = screen.count(),
        spawn       = mail
    },
}

-- SHIFTY: application matching rules
-- order here matters, early rules will be applied first
shifty.config.apps = {
    { match = { "XTerm", "URxvt" },
        tag = "1:term",
    },
    { match = { "Firefox", "luakit", "Iceweasel", "Icedove", "uzbl", "dwb" },
        tag = "2:web",
        nopopup = true,
    },
    { match = { "Xpdf", "Okular", "XDvi", "Geeqie", "Apvlv", "Evince", "feh", "zathura" },
        tag = "3:view",
    },
    { match = { "Gimp", "Scite", "Gvim", "Gview", "Zim", "jabref" },
        tag = "4:edit",
        max_clients = 1,
    },
    { match = { "LibreOffice*", "Calligra*" },
        tag = "5:office",
    },
    { match = { "Codeblocks", "Texmaker" },
        tag = "6:dev",
    },
    { match = { "Pidgin", "Skype", "Empathy", "Jitsi" },
        tag = "7:soc",
    },
    { match = { "Vlc", "mplayer", "guayadeque" },
        tag = "8:media",
    },
    { match = { "Icedove" },
        tag = "9:mail",
    },
    { match = { name = { "Mutt" } },
        tag = "9:mail",
    },
    {
        match = {""},
        buttons = awful.util.table.join(
            awful.button({}, 1, function (c) client.focus = c; c:raise() end),
            awful.button({modkey}, 1, function(c)
                client.focus = c
                c:raise()
                awful.mouse.client.move(c)
                end),
            awful.button({modkey}, 3, awful.mouse.client.resize)
            )
    },
}

-- SHIFTY: default tag creation rules
-- parameter description
--  * floatBars : if floating clients should always have a titlebar
--  * guess_name : should shifty try and guess tag names when creating
--                 new (unconfigured) tags?
--  * guess_position: as above, but for position parameter
--  * run : function to exec when shifty creates a new tag
--  * all other parameters (e.g. layout, mwfact) follow awesome's tag API
shifty.config.defaults = {
    layout = awful.layout.suit.max,
    ncol = 1,
    mwfact = 0.60,
    floatBars = true,
    guess_name = true,
    guess_position = true,
}
-- {{{ Wibox

-- Create a systray
mysystray = widget({ type = "systray" })

-- Create a wibox for each screen and add it
mywibox = {}
myconkybox = {}
mypromptbox = {}
mylayoutbox = {}
mytaglist = {}
mytaglist.buttons = awful.util.table.join(
                    awful.button({ }, 1, awful.tag.viewonly),
                    awful.button({ modkey }, 1, awful.client.movetotag),
                    awful.button({ }, 3, awful.tag.viewtoggle),
                    awful.button({ modkey }, 3, awful.client.toggletag),
                    awful.button({ }, 4, awful.tag.viewnext),
                    awful.button({ }, 5, awful.tag.viewprev)
                    )
mytasklist = {}
mytasklist.buttons = awful.util.table.join(
                     awful.button({ }, 1, function (c)
                                              if c == client.focus then
                                                  c.minimized = true
                                              else
                                                  if not c:isvisible() then
                                                      awful.tag.viewonly(c:tags()[1])
                                                  end
                                                  -- This will also un-minimize
                                                  -- the client, if needed
                                                  client.focus = c
                                                  c:raise()
                                              end
                                          end),
                     awful.button({ }, 3, function ()
                                              if instance then
                                                  instance:hide()
                                                  instance = nil
                                              else
                                                  instance = awful.menu.clients({ width=250 })
                                              end
                                          end),
                     awful.button({ }, 4, function ()
                                              awful.client.focus.byidx(1)
                                              if client.focus then client.focus:raise() end
                                          end),
                     awful.button({ }, 5, function ()
                                              awful.client.focus.byidx(-1)
                                              if client.focus then client.focus:raise() end
                                          end))

for s = 1, screen.count() do
    -- Create a promptbox for each screen
    mypromptbox[s] = awful.widget.prompt({ layout = awful.widget.layout.horizontal.leftright })
    -- Create an imagebox widget which will contains an icon indicating which layout we're using.
    -- We need one layoutbox per screen.
    mylayoutbox[s] = awful.widget.layoutbox(s)
    -- Create a taglist widget
    mytaglist[s] = awful.widget.taglist(s, awful.widget.taglist.label.all, mytaglist.buttons)

    -- Create a tasklist widget
    mytasklist[s] = awful.widget.tasklist(function(c)
                                              return awful.widget.tasklist.label.currenttags(c, s)
                                          end, mytasklist.buttons)

    -- Create the wibox
    mywibox[s] = awful.wibox({ position = "top", screen = s })
    myconkybox[s] = awful.wibox({ position = "bottom", screen = screen.count(), height = "15", width = "1", ontop = false })

    -- Add widgets to the wibox - order matters
    mywibox[s].widgets = {
        {
            mylayoutbox[s],
            mytaglist[s],
            mypromptbox[s],
            layout = awful.widget.layout.horizontal.leftright
        },
        s == 1 and mysystray or nil,
        mytasklist[s],
        layout = awful.widget.layout.horizontal.rightleft
    }
end
-- }}}

-- SHIFTY: initialize shifty
-- the assignment of shifty.taglist must always be after its actually
-- initialized with awful.widget.taglist.new()
shifty.taglist = mytaglist
shifty.init()

-- {{{ Mouse bindings
root.buttons(awful.util.table.join(
    awful.button({ }, 4, awful.tag.viewnext),
    awful.button({ }, 5, awful.tag.viewprev)
))
-- }}}

-- {{{ Key bindings
globalkeys = awful.util.table.join(
    awful.key({ modkey,           }, "Left",   awful.tag.viewprev       ),
    awful.key({ modkey,           }, "Right",  awful.tag.viewnext       ),
    awful.key({ modkey,           }, "Escape", awful.tag.history.restore),
    awful.key({ modkey,           }, "j",
        function ()
            awful.client.focus.byidx( 1)
            if client.focus then client.focus:raise() end
        end),
    awful.key({ modkey,           }, "k",
        function ()
            awful.client.focus.byidx(-1)
            if client.focus then client.focus:raise() end
        end),

    -- Shifty: keybindings specific to shifty
    awful.key({modkey, "Shift"  }, "d", shifty.del                      ), -- delete a tag
    awful.key({modkey, "Shift"  }, "n", shifty.send_prev                ), -- client to prev tag
    awful.key({modkey           }, "n", shifty.send_next                ), -- client to next tag
    awful.key({modkey, "Control"}, "n",
              function()
                  local t = awful.tag.selected()
                  if t ~= nil then
                    local s = awful.util.cycle(screen.count(), t.screen + 1)
                    awful.tag.history.restore()
                    t = shifty.tagtoscr(s, t)
                    awful.tag.viewonly(t)
                  end
              end),
    awful.key({modkey           }, "a", shifty.add                      ), -- creat a new tag
    awful.key({modkey           }, "r", shifty.rename                   ), -- rename a tag
    awful.key({modkey, "Shift"  }, "a",                                    -- nopopup new tag
        function()
            shifty.add({nopopup = true})
        end),

    -- Layout manipulation
    awful.key({ modkey, "Shift"   }, "j", function () awful.client.swap.byidx(  1)    end),
    awful.key({ modkey, "Shift"   }, "k", function () awful.client.swap.byidx( -1)    end),
    awful.key({ modkey, "Control" }, "j", function () awful.screen.focus_relative( 1) end),
    awful.key({ modkey, "Control" }, "k", function () awful.screen.focus_relative(-1) end),
    awful.key({ modkey,           }, "u", awful.client.urgent.jumpto),
    awful.key({ modkey,           }, "Tab",
        function ()
            awful.client.focus.history.previous()
            if client.focus then
                client.focus:raise()
            end
        end),

    -- Standard program
    awful.key({ modkey,           }, "Return", function () awful.util.spawn(terminal)   end),
    awful.key({ modkey, "Control" }, "r", awesome.restart                                  ),
    awful.key({ modkey, "Shift"   }, "q", awesome.quit                                     ),

    awful.key({ modkey,           }, "l",     function () awful.tag.incmwfact( 0.05)    end),
    awful.key({ modkey,           }, "h",     function () awful.tag.incmwfact(-0.05)    end),
    awful.key({ modkey, "Shift"   }, "h",     function () awful.tag.incnmaster( 1)      end),
    awful.key({ modkey, "Shift"   }, "l",     function () awful.tag.incnmaster(-1)      end),
    awful.key({ modkey, "Control" }, "h",     function () awful.tag.incncol( 1)         end),
    awful.key({ modkey, "Control" }, "l",     function () awful.tag.incncol(-1)         end),
    awful.key({ modkey,           }, "space", function () awful.layout.inc(layouts,  1) end),
    awful.key({ modkey, "Shift"   }, "space", function () awful.layout.inc(layouts, -1) end),

--    awful.key({ modkey, "Control" }, "n", awful.client.restore                             ), -- used for shifty and does not work!

    -- Prompt
    awful.key({ modkey },            "F1",    function () mypromptbox[screen.count()]:run() end),

    awful.key({ modkey }, "F4",
              function ()
                  awful.prompt.run({ prompt = "Run Lua code: " },
                  mypromptbox[screen.count()].widget,
                  awful.util.eval, nil,
                  awful.util.getdir("cache") .. "/history_eval")
              end),

    -- own keys
    awful.key({ modkey,           }, "e",      function () awful.util.spawn(editor) end),
    awful.key({                   }, "#160",   function () awful.util.spawn(screenlock) end),
    awful.key({                   }, "#122",   function () awful.util.spawn(alsa_lower) end),
    awful.key({                   }, "#123",   function () awful.util.spawn(alsa_raise) end),
    awful.key({                   }, "#121",   function () awful.util.spawn(alsa_mute) end),
    awful.key({                   }, "#158",   function () awful.util.spawn(browser) end),
    awful.key({                   }, "#163",   function () awful.util.spawn(mail) end)--,
--    awful.key({                   }, "#232",   function () awful.util.spawn(backlight_dec) end),
--    awful.key({                   }, "#233",   function () awful.util.spawn(backlight_inc) end)
)

clientkeys = awful.util.table.join(
    awful.key({ modkey,           }, "f",      function (c) c.fullscreen = not c.fullscreen  end),
    awful.key({ modkey, "Shift"   }, "c",      function (c) c:kill()                         end),
    awful.key({ modkey, "Control" }, "space",  awful.client.floating.toggle                     ),
    awful.key({ modkey, "Control" }, "Return", function (c) c:swap(awful.client.getmaster()) end),
    awful.key({ modkey,           }, "o",      awful.client.movetoscreen                        ),
    awful.key({ modkey, "Shift"   }, "r",      function (c) c:redraw()                       end),
    awful.key({ modkey,           }, "t",      function (c) c.ontop = not c.ontop            end),
    awful.key({ modkey,           }, "n",
        function (c)
            -- The client currently has the input focus, so it cannot be
            -- minimized, since minimized clients can't have the focus.
            c.minimized = true
        end),
    awful.key({ modkey,           }, "m",
        function (c)
            c.maximized_horizontal = not c.maximized_horizontal
            c.maximized_vertical   = not c.maximized_vertical
        end)
)
-- SHIFTY: assign client keys to shifty for use in
-- match() function(manage hook)
shifty.config.clientkeys = clientkeys
shifty.config.modkey = modkey

-- Compute the maximum number of digit we need, limited to 9
for i = 1, (shifty.config.maxtags or 9) do
    globalkeys = awful.util.table.join(globalkeys,
        awful.key({modkey}, i, function()
            local t = awful.tag.viewonly(shifty.getpos(i))
            end),
        awful.key({modkey, "Control"}, i, function()
            local t = shifty.getpos(i)
            t.selected = not t.selected
            end),
        awful.key({modkey, "Control", "Shift"}, i, function()
            if client.focus then
                awful.client.toggletag(shifty.getpos(i))
            end
            end),
        -- move clients to other tags
        awful.key({modkey, "Shift"}, i, function()
            if client.focus then
                t = shifty.getpos(i)
                awful.client.movetotag(t)
                awful.tag.viewonly(t)
            end
        end))
end


-- Set keys
root.keys(globalkeys)
-- }}}


-- {{{ Signals
-- Signal function to execute when a new client appears.
client.add_signal("manage", function (c, startup)
    -- Add a titlebar
    -- awful.titlebar.add(c, { modkey = modkey })

    -- Enable sloppy focus
    c:add_signal("mouse::enter", function(c)
        if awful.layout.get(c.screen) ~= awful.layout.suit.magnifier
            and awful.client.focus.filter(c) then
            client.focus = c
        end
    end)

    if not startup then
        -- Set the windows at the slave,
        -- i.e. put it at the end of others instead of setting it master.
        -- awful.client.setslave(c)

        -- Put windows in a smart way, only if they does not set an initial position.
        if not c.size_hints.user_position and not c.size_hints.program_position then
            awful.placement.no_overlap(c)
            awful.placement.no_offscreen(c)
        end
    end
end)

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