Functionality

The term Functionality in the context of the window manager refers to special features that can be configured on and off globally.

One way to think of them are as optional features.

Functionalities can be chosen by uncommenting or commenting out options for the functionality variable in config.h:

/* See util.h for options */
static uint64_t functionality = 0
//	|AutoReduceNmaster // automatically reduce the number of master clients if one is closed
//	|SmartGaps // enables no gaps if there is only one visible window
//	|SmartGapsMonocle // enforces no (outer) gaps in monocle layout
	|Systray // enables systray
	|Swallow // allows terminals to swallow X applications started from the command line
	|SwallowFloating // means swallow floating windows by default
	|CenteredWindowName // center the window titles on the bar
	...

Most, but not all, functionalites can be enabled, disabled or toggled during runtime using the dusk client:

$ duskc run_command enable SmartGaps  # enables functionality
$ duskc run_command toggle SmartGaps  # toggles functionality on or off
$ duskc run_command disable SmartGaps  # disables functionality

Here is the list of options:

Functionality	Description	Topic
AltWindowTitles	Show alternative window titles for clients, if present	Bar
AltWorkspaceIcons	Show workspace names instead of icons	Bar
BarActiveGroupBorderColor	Use border color of the active window group for the bar	Bar
BarMasterGroupBorderColor	Use border color of the master window group for the bar	Bar
BarBorder	Draw a border around the bar	Bar
BarPadding	Enables bar padding (adds space between the monitor edge and bar)	Bar
CenteredWindowName	Center the window name in the bar	Bar
ColorEmoji	Enables color emoji support (removes Xft workaround)	Bar
FlexWinBorders	Use the SchemeFlex* color schemes, falls back to SchemeTitle* if disabled	Bar
Status2DNoAlpha	Option to not use alpha when drawing status2d text	Bar
Systray	Enables a systray in the bar	Bar
WinTitleIcons	Enables icons next to window titles in the bar	Bar
StackerIcons	Adds stacker keyboard shortcut hints next to window titles in the bar	Bar
WorkspaceLabels	Adds the class of the primary client next to the workspace icon in the bar	Bar
WorkspacePreview	Enables preview images to be shown when hovering workspace icons in the bar that has clients	Bar
DecorationHints	Omit drawing the window border if the applications asks not to	EWMH
ResizeHints	Respect size hints also when windows are tiled	EWMH
FocusFollowMouse	Focus reverts to window beneath the mouse cursor rather than the most recently focused window	Focus
FocusOnClick	Disables sloppy focus and requires mouse click to change focus between windows	Focus
FocusOnNetActive	Allow windows demanding attention to receive focus automatically	Focus
RestrictFocusstackToMonitor	Option to restrict focusstack to only operate within the monitor	Focus
Warp	Warp cursor to currently focused window	Focus
SmartGaps	Enables no or increased gaps when there is only one visible window	Gaps
SmartGapsMonocle	Enforces no gaps in monocle layout	Gaps
AutoReduceNmaster	Automatically reduce the number of master clients if one is closed	Layout
CenterSizeHintsClients	Center tiled clients subject to size hints within their tiled area	Layout
SmartLayoutConvertion	Automatically adjust layout based on monitor orientation when moving a workspace from one monitor to another	Layout
SortScreens	Monitors are numbered from left to right	Monitor
AutoHideScratchpads	Automatically hide open scratchpads when moving to another workspace	Scratchpads
RioDrawIncludeBorders	Indicates that the area drawn using slop includes the window borders	Spawn
RioDrawSpawnAsync	Spawn the application alongside rather than after drawing area using slop	Spawn
SpawnCwd	Spawn applications in the currently selected client's working directory	Spawn
Swallow	Enables window swallowing	Swallow
SwallowFloating	Allows floating windows to swallow by default	Swallow
AllowNoModifierButtons	Allow some window operations, like move and resize, to work without having to hold down a modifier key	Window
FocusedOnTop	Allows focused window to stay on top of other windows	Window
NoBorders	Show no window border when only one client is shown	Window
SnapToGaps	Allows a floating window to snap to the outer gaps of the workspace when moved	Window
SnapToWindows	Allows a floating window to snap to other floating windows when moved	Window
ViewOnWs	Follow a window to the workspace it is being moved to	Workspaces
GreedyMonitor	Disables swap of workspaces between monitors	Workspaces
Xresources	Add support for changing colours via Xresources	Xresources
BanishMouseCursor	Like xban, hides mouse cursor when using the keyboard	System
BanishMouseCursorToCorner	Like xbanish, hides mouse cursor when using the keyboard	System
Debug	Enables additional debug output	System

Back to Features.