Utilities

Quake

A Quake-like dropdown container for your favourite application.

Usage

Define it globally to have a single instance for all screens:

local quake = lain.util.quake()

or define it in connect_for_each_screen to have one instance for each screen:

awful.screen.connect_for_each_screen(function(s)
    -- Quake application
    s.quake = lain.util.quake()
    -- [...]

Keybinding example

If using a global instance:

awful.key({ modkey, }, "z", function () quake:toggle() end),

If using a per-screen instance:

awful.key({ modkey, }, "z", function () awful.screen.focused().quake:toggle() end),

Input table

Variable	Meaning	Type	Default
app	client to spawn	string	"xterm"
name	client name	string	"QuakeDD"
argname	how to specify client name	string	"-name %s"
extra	extra app arguments	string	empty string
border	border width	number	1
visible	initially visible	boolean	false
followtag	always spawn on currently focused screen	boolean	false
overlap	Overlap the wibox or not	boolean	false
settings	Additional settings to make on the client	function	nil
screen	screen where to spawn the client	number	awful.screen.focused()
height	dropdown client height	float in [0,1] or exact pixels number	0.25
width	dropdown client width	float in [0,1] or exact pixels number	1
vert	vertical position	string, possible values: "top", "bottom", "center"	"top"
horiz	horizontal position	string, possible values: "left", "right", "center"	"left"

height and width express a fraction of the workspace.

settings is a function which takes the client as input, and can be used to customize its properties. For instance:

-- set the client sticky
s.quake = lain.util.quake { settings = function(c) c.sticky = true end }

Read here for the complete list of properties.

Notes

• Does not work with gnome-terminal, konsole, or any other terminal which is strictly designed for a Desktop Environment. Just pick a better terminal, there's plenty.
• Set followtag = true if experiencing issues with multiple screens.
• If you have a awful.client.setslave rule for your application, ensure you use an exception for QuakeDD (or your defined name). Otherwise, you may run into problems with focus.
• If you are using a VTE-based terminal like termite, be sure to set argname = "--name %s".

Separators

Adds Cairo separators.

local separators = lain.util.separators

A separator function separators.separator takes two color arguments, defined as strings. "alpha" argument is allowed. Example:

arrl_dl = separators.arrow_left(beautiful.bg_focus, "alpha")
arrl_ld = separators.arrow_left("alpha", beautiful.bg_focus)

You can customize height and width by setting separators_height and separators_width in your theme.lua. Default values are 0 and 9, respectively.

List of functions:

 +-- separators
 |
 |`-- arrow_right()    Draw a right arrow.
  `-- arrow_left()     Draw a left arrow.

markup

Mades markup easier.

local markup = lain.util.markup

List of functions:

 +-- markup
 |
 |`-- bold()        Set bold.
 |`-- italic()      Set italicized text.
 |`-- strike()      Set strikethrough text.
 |`-- underline()   Set underlined text.
 |`-- monospace()   Set monospaced text.
 |`-- big()         Set bigger text.
 |`-- small()       Set smaller text.
 |`-- font()        Set the font of the text.
 |`-- font()        Set the font of the text.
 |`-- color()       Set background and foreground color.
 |`-- fontfg()      Set font and foreground color.
 |`-- fontbg()      Set font and background color.
  `-- fontcolor()   Set font, plus background and foreground colors.
 |
 |`--+ bg
 |   |
 |    `-- color()   Set background color.
 |
  `--+ fg
     |
      `-- color()   Set foreground color.

they all take one argument, which is the text to markup, except the following:

markup.font(font, text)
markup.color(fg, bg, text)
markup.fontfg(font, fg, text)
markup.fontbg(font, bg, text)
markup.fontcolor(font, fg, bg, text)
markup.fg.color(color, text)
markup.bg.color(color, text)

Dynamic tagging

That is:

• add a new tag;
• rename current tag;
• move current tag;
• delete current tag.

If you delete a tag, any rule set on it shall be broken, so be careful.

Use it with key bindings like these:

awful.key({ modkey, "Shift" }, "n", function () lain.util.add_tag(mylayout) end),
awful.key({ modkey, "Shift" }, "r", function () lain.util.rename_tag() end),
awful.key({ modkey, "Shift" }, "Left", function () lain.util.move_tag(1) end),   -- move to next tag
awful.key({ modkey, "Shift" }, "Right", function () lain.util.move_tag(-1) end), -- move to previous tag
awful.key({ modkey, "Shift" }, "d", function () lain.util.delete_tag() end),

The argument in lain.util.add_tag represents the tag layout, and is optional: if not present, it will be defaulted to awful.layout.suit.tile.

Useless gaps resize

Changes beautiful.useless_gaps on the fly.

The function takes an integer argument, being the amount of pixel to add/remove to gaps.

You could use it with these keybindings:

-- On the fly useless gaps change
awful.key({ altkey, "Control" }, "+", function () lain.util.useless_gaps_resize(1) end),
awful.key({ altkey, "Control" }, "-", function () lain.util.useless_gaps_resize(-1) end),

where altkey = Mod1, or you could use it like this:

mywidget:buttons(awful.util.table.join (
        awful.button({}, 4, function() lain.util.useless_gaps_resize(-1) end),
        awful.button({}, 5, function() lain.util.useless_gaps_resize(1) end)
    end)
))

so when hovering the mouse over mywidget, you can adjust useless gaps size by scrolling with the mouse wheel.

tag_view_nonempty

This function lets you jump to the next/previous non-empty tag. It takes two arguments:

• direction: 1 for next non-empty tag, -1 for previous.
• sc: Screen which the taglist is in. Default is mouse.screen or 1. This argument is optional.

You can use it with key bindings like these:

-- Non-empty tag browsing
awful.key({ altkey }, "Left", function () lain.util.tag_view_nonempty(-1) end),
awful.key({ altkey }, "Right", function () lain.util.tag_view_nonempty(1) end),

where altkey = "Mod1".

magnify_client

Set a client to floating and resize it in the same way the "magnifier" layout does it. Place it on the "current" screen (derived from the mouse position). This allows you to magnify any client you wish, regardless of the currently used layout. Use it with a client keybinding like this:

clientkeys = awful.util.table.join(
    -- [...]
    awful.key({ modkey, "Control" }, "m", lain.util.magnify_client),
    -- [...]
)

If you want to "de-magnify" it, just retype the keybinding.

If you want magnified client to respond to incmwfact, read here.

menu_clients_current_tags

Similar to awful.menu.clients, but this menu only shows the clients of currently visible tags. Use it with a key binding like this:

awful.key({ "Mod1" }, "Tab", function()
    lain.util.menu_clients_current_tags({ width = 350 }, { keygrabber = true })
end),