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HIKARI(1) hikari - Wayland Compositor HIKARI(1) NAME hikari - Wayland Compositor SYNTAX hikari [-vh] [-a <executable>] [-c <config>] DESCRIPTION hikari is a stacking Wayland compositor with additional tiling capabil- ities, it is heavily inspired by the Calm Window manager (cwm(1)). Its core concepts are views, workspaces, sheets and groups. The following options are available: -a <executable> Specify autostart executable. -c <config> Specify a configuration file. -h Show this message and quit. -v Show version and quit. CONCEPTS View Views are basically the windows of a Wayland client. Each view belongs to at most one sheet and can also belong to at most one group. A view can be in several states. • hidden Hidden views are not displayed on the workspace. Hiding a view re- moves this view from the workspace. • tiled A tiled view is part of a layout. They can never be floating or in- visible. • floating Floating views can never become part of a layout. The floating state is indicated using a tilde in the sheet indicator. • invisible When a view is set into invisible state it will not be displayed when switching to the containing sheet and stay hidden until it is explic- itly requested to be shown. This can be used to keep long running views from cluttering the workspace. An invisible view can never be tiled and are indicated using square brackets in the sheet indicator. • maximized (horizontal, vertical and full) Views with such a state can take up the entire horizontal and or ver- tical space of a workspace. Tiled views can also be maximized. • borrowed Borrowing happens when a workspace contains a view that view that is not part of the current sheet. These views are called borrowed views and are indicated by the sheet indicator using the string "x @ y", where x is the sheet the view is a member of and y is the sheet that is currently borrowing the view. • public Public views are also displayed on the lock screen, in this case they will never accept input. Views that display sensible information should never be marked as public. The public state is indicated us- ing an exclamation mark in the sheet indicator. Workspace A workspace is the set of views that are currently visible. Unlike in most other Wayland compositors, hikari only has a single workspace for each output and we only manipulate its content using actions. While this seems like a superficial distinction it is important to keep in mind for some actions to make sense. When switching to a sheet this sheet becomes the workspace sheet. On startup a workspace sheet is 1. Views on a workspace are stacked from bottom to top, where the next view is higher up the stack and the previous view is one below. This order can be changed by raising or lowering views individually via ac- tions. Selecting a view via cycling actions automatically raises this view to the top of the stacking order. hikari provides multiple ways to cycle the views on a workspace. Cy- cling is a way to navigate to a view using key bindings. Sheet A sheet is a collection of views, each view can only be a member of a single sheet. Switching between sheets will replace the current con- tent of the workspace with all the views that are a member of the se- lected sheet, this sheet will also become the current sheet. hikari has 9 general purpose sheets that correspond to the numbers 1 to 9 and a special purpose sheet 0. Views that are a member of sheet 0 will al- ways be visible but stacked below the views of the selected sheet. A sheet that contains views is called inhabited. When switching to a different sheet the current current sheet becomes the alternate sheet. Group Groups are a bit more fine grained than sheets. Like sheets, groups are a collection of views. Unlike sheets you can have a arbitrary num- ber of groups and each group can have an arbitrary name. Views from one group can be spread among all available sheets. Some actions act on entire groups rather than individual views. Layout Each sheet can have at most one layout for tiling views. Applying a layout to a sheet introduces an additional ordering for views which is not altered by raising or lowering, which can be used to traverse the layout in the expected order. Each layout can be stored in one of the layout register a to z. View indicators View indicators show information about the current view as well as views belonging to the same group. They outline the border of the cur- rent view as well as all view borders belonging to the same group (ob- scured view borders will shine through the obscuring view). The fo- cused view will also display so called indicator bars. Each bar holds some information, like title, sheet information, group and its mark (if one has been set for the view). Marks Marks can be used to "speed dial" views, even if they are on a sheet other than the current sheet (note: such views will become borrowed in the process). Marks are represented by characters from a to z. When jumping to a mark the view will be brought forward and focused. If no view is bound to a mark the user can specify a command that is executed instead. This can be used to start an application that binds itself to this mark. Mode hikari is a modal Wayland compositor and therefore offers several modes for actions like changing a views group, mark or sheet as well a jump- ing to marks or grabbing input events and layout selection. CONFIGURATION hikari is configured using libucl(3) as a configuration file format. The configuration is located under $XDG_CONFIG_HOME/hikari/hikari.conf. If this file is not found hikari is going to try hikari.conf from the install etc directory. The default configuration is going to use $TERMINAL as your standard terminal application. On startup hikari attempts to execute ~/.config/hikari/autostart to au- tostart applications. Environment Variables hikari supports the use of environment variables in its string values. Occurrences of ${VARIABLE} or $VARIABLE inside a string will be substi- tuted with the value of an environment variable named VARIABLE. If no such environment variable exists, no substituation takes place. You can use double dollar signs to escape variables: $${VARIABLE} will result in ${VARIABLE}, $$VARIABLE will result in $VARIABLE. ACTIONS General actions • lock Lock hikari and turn off all outputs. To unlock you need to enter your password and press enter. Being able to unlock requires hikari- unlocker to be in the PATH and running with setuid(2) root privileges (those are required to check if the entered password is correct). hikari-unlocker also needs pam.conf(5) to be aware of its existence, therefore there must be a hikari-unlocker service file in pam.d. The lock screen displays all views that are marked as public which allows applications to provide information to the user when the com- puter is locked (e.g. a clock). • quit Issues a quit operation to all views, allowing them to prompt their shutdown dialog if they have any. Issuing this operation again dur- ing shutdown will terminate hikari right away. • reload Reload and apply the configuration. Group actions • group-cycle-[next|prev] Cycle to the next or previous group according to the stacking order by cycling through the top most view of each group. The next view is further up the stack and the previous view is further down the stack. Reaching each end of the stack just wraps around. Once a view is se- lected it will be raised to the top of the stacking order. Selecting happens by releasing the modifier key. • group-cycle-view-[next|prev|first|last] Cycle through all visible views inside of a group. Once a view is selected it will be raised to the top of the stacking order. Select- ing happens by releasing the modifier key. • group-hide Hides all visible views of the group of the focused view. • group-lower Lowers all visible views of the group of the focused view. • group-only Hides all visible views not belonging to the group of the focused view. • group-raise Raises all visible views of the group of the focused view. Layout actions • layout-apply-[a-z] Applies the layout in the according register to the current workspace sheet. If the register happens to be empty this is a no-op. If the view that currently has focus can be tiled and is not borrowed it will get raised to the top of the stack. • layout-cycle-view-[next|prev|first|last] Cycle to the next or previous group according to the layout order. Once a view is selected it will be raised to the top of the stacking order, the layout order will remain unchanged. • layout-exchange-view-[next|prev|main] Swaps the focused view with the next, previous or main view in the layout order. • layout-reset Resets the geometry of all views in the current layout. • layout-restack-[append|prepend] Adds non-floating sheet views to an existing layout without changing layout order of already tiled views. If no layout is present the de- fault layout for the current sheet is applied. Mark actions • mark-show-[a-z] Shows the view bound to the according mark. If no view is bound to the mark an optional command for this mark can be executed, if none is specified this action is a no-op. • mark-switch-to-[a-z] Switches to the workspace containing the view bound to the according mark. If no view is bound to the mark an optional command for this mark can be executed, if none is specified this action is a no-op. Mode actions • mode-enter-group-assign Entering group-assign-mode allows the user to change the group of the currently focused view. Groups that do no exist yet get created. Groups that become empty get destroyed. • mode-enter-input-grab Redirect all input events directly to the focused view without the compositor interfering. Focus will not leave this view anymore until the mode exits or the view closes. To exit this mode, reissue the same key binding that started this mode. • mode-enter-layout Layout selection awaits one of the layout registers to be selected. Valid registers range from a to z and 0 to 9. ESC cancels this mode without selecting a layout. If the layout register happens to be empty this action is a no-op. If the view that currently has focus can be tiled and is not borrowed it will get raised to the top of the stack. • mode-enter-mark-assign To change the mark of a view enter mark assign mode and select a mark between a and z. This mode turns the mark indicator bar into an in- put field. The selection is finalized by pressing Enter or canceled by pressing ESC. If a mark has already been taken the conflicting window will be indicated. • mode-enter-mark-select Mark selection allows to bring forward a view bound to a mark by se- lecting that mark. When entering this mode hikari awaits the name of the mark to be issued. If that mark is bound to a view that view is shown, in the case that this view is not a member of the current sheet it is considered borrowed. If no view is bound to this mark and the mark has been configured to execute a command when empty, this command gets executed. • mode-enter-mark-switch-select This action works just like mode-enter-mark-select with the exception that is switches to the workspace of the bound view. If the mark is not bound it stays on the same workspace. • mode-enter-move Moving around views with a pointer device is what this mode is for. Once entered the pointer will jump to the top left corner of the fo- cused view and start moving the view around with the pointer. When releasing any key this mode is canceled automatically. • mode-enter-resize Resizing around views with a pointer device is what this mode is for. Once entered the pointer will join to the bottom right corner of the focused view and start resizing the view with the pointer. When re- leasing any key this mode is canceled automatically. • mode-enter-sheet-assign Entering this mode lets the user change the sheet of a view by press- ing the number of the target sheet. If multiple outputs are avail- able they can be cycled using TAB. Sheet actions • sheet-show-all Clears the current workspace and populates it with all views that are a member of its current sheet. This includes invisible views as well. • sheet-show-group Clears the current workspace and populates it with all views that are a member of its current sheet and the group of the focused view. This includes invisible views as well. • sheet-show-invisible Clears the current workspace and populates it with all invisible views that are a member of its current sheet. View actions • view-cycle-[next|prev] Cycle through all visible views. The next view is further up the stack and the previous view is further down the stack. Reaching each end of the stack just wraps around. Once a view is selected it will be raised to the top of the stacking order. Selecting happens by re- leasing the modifier key. • view-decrease-size-[up|down|left|right] Decreases the size of the focused view by the amount of pixels set as step value into the given direction • view-hide Hides the focused view. • view-increase-size-[up|down|left|right] Increases the size of the focused view by the amount of pixels set as step value into the given direction • view-lower Lowers the focused view to the bottom of the stacking order. • view-move-[up|down|left|right] Moves the focused view step pixels into the given direction. • view-move-[center[|-left|-right]|[bottom|top]-[left|middle|right]] Moves the focused view to the given position on the output. • view-only Hides every other view except the focused one. • view-pin-to-sheet-[0-9|alternate|current] Pins the focused view to a given sheet. If the sheet is not current- ly a current sheet or sheet 0 the view becomes hidden. Pinning a view to the current sheet makes sense for borrowed views which takes this view from its original view and pin it to the current one. • view-quit Closes the focused view. • view-raise Raises the view to the top of the stacking order. • view-reset-geometry Resetting view geometry brings a view back to its original size and position. This means that maximization will be undone and the view will also be taken out of a layout if it has been a part of one be- fore. • view-snap-[up|down|left|right] Snap the focused view into the specified direction. Views can snap to the edge of the screen as well as to the borders of neighboring views (in this case the gap setting is respected). • view-toggle-floating Toggles the floating state of the focused view. Floating views can not be part of a layout. If a view that is already tiled is set to floating state it will be taken out of the layout and reset its geom- etry. • view-toggle-invisible Toggles the invisible state of the focused view. A view in invisible state is not displayed if a user switches to the sheet containing this view. They need to be shown explicitly, either by using marks or by issuing actions showing views in this state. Iconified views can not be part of a layout. If a view that is already tiled is set to invisible state it will be taken out of the layout and reset its geometry. • view-toggle-maximize-[full|horizontal|vertical] Maximizes the focused view in the given direction. Maximization state complement each other so maximizing a view horizontally and then vertically adds up to a full maximization state and so on. • view-toggle-public Toggles the public state of the focused view. Public views are also displayed on the lock screen (note: they do not accept any input when the screen is locked though). These views should only contain infor- mation that should be displayed when the screen is locked, such as clocks or the progress of a long running process, they should never contain sensitive information. The public state is indicated in the sheet indicator bar via !. VT actions • vt-switch-to-[1-9] Switches to another virtual terminal. Workspace actions • workspace-clear Clears the current workspace. • workspace-cycle-[next|prev] Cycle through available workspaces selecting the view that had focus last. If that view is no longer visible the first view of the cur- rent sheet of that workspace is selected . In both cases the cursor gets centered on that view. If the current sheet is empty this moves the cursor into the center of the target workspace. • workspace-show-all Clears the current workspace and populates it with all views. This includes invisible views. • workspace-show-group Raises the focused view, clears the current workspace and populates it with all views that are a member of the group of the focused view. This includes invisible views. • workspace-show-invisible Clears the current workspace and populates it with all invisible views that belong to that workspace. • workspace-switch-to-sheet-[0-9|alternate|current] Clears the current workspace and populates it with all views that are a member of the specified sheet. This action also sets the current sheet of the workspace to this very sheet. Views that are a member of sheet 0 will also be displayed on the bottom of the stacking or- der. Switching to the current sheet will reset the state of the sheet e.g. hiding borrowed views, showing views that have previously been hidden and hiding views that are in invisible state. • workspace-switch-to-sheet-[next|prev]-inhabited Switch to the next or previous sheet (excluding 00) that contains at least one member. If none exists is a no-op. This action also sets the current sheet of the workspace to this sheet. USER DEFINED ACTIONS Actions can also be user defined, this is done in the actions section of the configuration file. A user defined action consists of a name and a command that should be run when the action has been issued. To define an action action-terminal that launches sakura(1) one needs to defined the following. terminal = sakura Now we can bind the newly defined action-terminal to a key combination in the bindings section. BINDINGS Actions can be bound to keys and mouse buttons. The bindings section in the configuration file is used for this matter. Keys can be speci- fied by using either key symbols or codes. A key combination starts with a string identifying the modifiers for the bindings. There are 5 valid modifiers. A valid modifier string is a combination of the fol- lowing modifiers. • L (Logo) • S (Shift) • C (Control) • A (Alt) • 5 (AltGR) If we want to omit the modifier for a key binding we signal this by us- ing "0" instead of a modifier string. Following the modifier string a key symbol or code can be stated. If we are using a key symbol to identify a key combination we are using "+" followed by the symbol in the case of a key code we are using "-" followed by the numerical key code. Key symbols and codes can be de- termined using wev(1). Once a key combination has been identified it can be bound to an ac- tion. "LS+a" = action1 # symbol binding "LS-38" = action2 # code binding The bindings section can contain 2 subsections keyboard and mouse for keyboard and mouse bindings. Valid values for mouse button names are right, middle, left, side, ex- tra, forward, back and task. Bindings can have a dedicated end action that gets triggered whenever a key is released or additional keys are pressed. It ensures that a be- gin action definitely is followed by the end action. "L+t" = { begin = action-push-to-talk-start end = action-push-to-talk-stop } MARK CONFIGURATION Marks can be used to quickly navigate to views. They can also execute commands when they are not currently bound to a view. This functional- ity can be used to start an application that can then take over that mark using auto configuration. Note that the started application does not automatically take over the mark. To specify commands that are issued on unassigned marks one can specify the commands associated with the mark in the marks section in the con- figuration file. marks { s = sakura } VIEW CONFIGURATION When an application start its views can be automatically configured by hikari. Each view has a property called id, in the views section this can be used to specify certain properties you want for that view to ap- ply. • floating Takes a boolean to specify the view's floating state on startup. The default value is false. • focus Takes a boolean to specify if the view should automatically grab fo- cus when it appears for the first time. This is useful for views that appear at a specified position. The default value is false. • group Automatically assign this view to a group (if the group does not ex- ist it is created automatically). If no group is specified a group name equal to the view id is chosen. • inherit Lets the user specify a list of properties which should be inherited to child views (e.g. dialogs). To inherit a property just state the name of the property as a string. Additionally use an object to overwrite specific values if they should differ from the parent's configuration. Values that are not explicitly inherited resort to their default. If inherit is not specified the child view is going to use the parent's configuration. • invisible Takes a boolean to specify the view's invisible state on startup. The default value is false. • mark Assign a mark to the view. This only takes effect if that mark is not already bound to another view already. • position Positions a newly created view to the given coordinates. hikari al- lows two ways to define a view position. One way is to specify ab- solute position stating the x and y coordinates as a object, the oth- er one is by stating them as one of the following options: • bottom-left • bottom-middle • bottom-right • center • center-left • center-right • top-left • top-middle • top-right This allows positioning a view relative to the output. • public Takes a boolean to specify the view's public state on startup. The default value is false. • sheet Takes an integer that references the sheet this view should be as- signed to. If the current sheet is unequal to this sheet or 0 this view automatically is considered to be borrowed. To configure views of the systat id to become a member of the group monitor and automatically assign them to sheet 0 with a given position and focus grabbing we would do something like this. Child views inher- it the group and sheet property while overwriting floating to true, all the other properties are set to their respective default values. systat = { group = monitor sheet = 0 position = { x = 1429 y = 1077 } focus = true inherit = [ group, sheet, { floating = true } ] } LAYOUTS hikari is not a tiling compositor so naturally some things will behave a bit differently compared to traditional tiling approaches. First and foremost, hikari tries to minimize operations that will affect a lot of views at the same time e.g. opening a new view will not automatically insert a view into an existing layout and resize all of the already tiled views. To insert a view into an existing layout the user has to issue a tiling action. This way opening a new view does not scramble an existing layout and the user can actively decide when to incorporate a view into a layout. A layout is bound to a sheet, each sheet can have at most one layout and laying out a sheet will incorporate all of its views unless they are invisible or floating. Resetting a layout will reset the geometry of all of the laid out views to its original geometry (also resetting maximization). Configuring layouts happens in the layouts section in the configuration file. Layouts are assigned to layout registers from a to z and special layout registers 0 to 9 which correspond to default layouts for a re- spective sheet. A layout itself is a combination of splits and con- tainers with tiling algorithms. Splits are used to subdivide regions of space and containers are used to consume views and layout them according to a specific tiling algo- rithm. Splits A layout subdivides the screen space using splits. Dividing up the screen space uses a binary space partitioning approach. One can split a region of space horizontally or vertically into to new regions which can contain either another split or a container with a tiling algo- rithm. To split up the screen vertically into two equally sized section one has to specify when the left and right hand side of the split should contain. { left = ... right = ... } Respectively to split horizontally you have to specify top and bottom. Notice that the order in which you specify left, right, top and bottom is important, since it defined the orientation of the split. The side of the split that gets specified first is the part the gets filled first when tiling a sheet, it becomes the dominant part of the split. Sometimes splitting a region of space should not result in equally sized subdivisions and the dominant part of the split should be scaled up or down. This can be done by specifying the scale attribute which can vary between 0.1 to 0.9, if no scale is specified this value de- faults to 0.5. To horizontally split a region on space where the top portion of the split should take up 75% would be specified like so: { scale = 0.75 top = ... bottom = ... } Additionally to setting a fixed scale value, hikari allows to specify a scale object with min and max values. This is called dynamic scaling, and it uses the size of the first view inside the container to deter- mine the size of the entire container. The min and max values are used to specify possible minimum and maximum scale values for the container. Omitting the values for min or max sets the former to 0.1 and the lat- ter to 0.9. { scale = { min = 0.5 max = 0.75 } left = single right = stack } Containers Containers consume a number of views and arrange them according to a tiling algorithm. There are 6 different tiling algorithms that you can assign to a container. • empty This is one of the simplest algorithms, it does not consume any views. This is used if a user desired to have a container of a lay- out to remain empty e.g. preventing the layout to cover up a portion of the workspace. • single Containers using the single layout only consume one view which takes up the entire container. • full Each view inside of a container using this algorithm will take up the entire size of the container. All of the views are stacked up on top of each other. • stack The stack algorithm tries to give every view the container consumes an equal amount of vertical space (excess space is given to the first view). The order in which stacking works is from top to bottom. • queue The queue algorithm tries to give every view the container consumes an equal amount of horizontal space (excess space is given to the first view). The order in which stacking works is from left to right. • grid A grid tries to give each view the containers consumes an equal amount of horizontal and vertical space (excess space is given to the first view, and therefore first row of the grid). If the amount of views can not be split up into equal rows and column the last part of the grid will not be filled. The easiest way to define a layout is by simply stating the tiling al- gorithm. Binding a fullscreen layout to the layout register f can be trivially achieved. f = full This layout does not subdivide the screen using splits in any way. The container takes up the entire screen space (respecting gap settings) and uses the full algorithm to arrange the views. More complex layouts might demand that the user specifies the number of views that the container may contain up to a maximum. This can be achieved by specifying a container object. To define a queue container that contains up to 4 views one would de- fine it like that: { views = 4 layout = queue } Just stating the tiling algorithm is a short-hand for a layout object with where views is set to 256. UI CONFIGURATION Getting everything to look right is an important aspect of feeling "at home". hikari offers a couple of options to tweak visuals to the users content. All of these configuration options are part of the ui sec- tion. • border Defines the thickness of view borders in pixels. Standard border thickness is set to 1. border = 1 • gap A gap is some extra space that is left between views when using a layout or snapping views. The value also specifies a pixel value. The standard gap value is 5. gap = 5 • font Specifies the font that is used for indicator bars. hikari uses monospace 10 as its default font setting. font = "monospace 10" • step The step value defines how many pixels move and resize operations should cover. The standard step value is 100. step = 100 Colorschemes hikari uses color to indicate different states of views and their indi- cator bars. By specifying a colorscheme section the user can control these colors. A colorscheme is a number of properties that can be changed individually. Colors are specified using hexadecimal RGB val- ues (e.g. 0xE6DB74). • active Indicates view focus. • background Specifies the background color. This will be obscured by a wallpaper • conflict Conflicts can happen when the user attempts to overwrite something (e.g. binding a mark to a view that is already taken up by another view) or does something illegal (e.g. defining a new group with a leading digit in its name). • first Signals that the indicated view is the topmost view of a group. • foreground Font color for indicator bars. • grouped Views that belong to the same group are indicated using this color. • inactive Indicates that a view does not have focus. • insert Indicates indicator bars that are in insert mode (e.g. assigning a view to a group) or views that have an input grab using mode-enter- input-grab. • selected This color is used to indicate that a view is selected. These are the default settings for the hikari colorscheme. colorscheme { background = 0x282C34 foreground = 0x000000 selected = 0xF5E094 grouped = 0xFDAF53 first = 0xB8E673 conflict = 0xED6B32 insert = 0xE3C3FA active = 0xFFFFFF inactive = 0x465457 } INPUTS The inputs section is used to configure input devices. Device names can be determined using libinput(1). Pointers Pointers can be configured in the pointers subsection. The following options are available. • accel Sets mouse acceleration for the pointer device to a value between -1 and 1. • accel-profile Sets mouse acceleration profile for the pointer device to the given mode. Valid values are none, flat and adaptive. • disable-while-typing Enable or disable disable-while-typing if available. This setting expects a boolean value. • middle-emulation Enable or disable middle click emulation if available. This setting expects a boolean value. • natural-scrolling Enable or disable natural-scrolling if available. This setting ex- pects a boolean value. • scroll-button Configures the pointer scroll button. Valid values are right, mid- dle, left, side, extra, forward, back and task. • scroll-method Sets the pointers scroll method. Valid values are no-scroll, on-but- ton-down. • tap Enable or disable tap if available. This setting expects a boolean value. • tap-drag Enable or disable tap-drag if available. This setting expects a boolean value. • tap-drag-lock Enable or disable tap-drag-lock if available. This setting expects a boolean value. Configuring the System mouse input device could look like this. inputs { pointers { "System mouse" = { accel = 1.0 scroll-method = on-button-down scroll-button = middle } } } A special name "*" is used to address all pointers. Values defined for this pseudo pointer override unconfigured values for any other pointer. Keyboards hikari is using xkb to configure its keyboards via the keyboards sec- tion. xkb rules can be set independently or via a file using the xkb attribute. To specify rules individually one can use the following options. Refer to xkeyboard-config(7) for possible settings. • rules Specifies the xkb rules. The default value is evdev. • model Sets the keyboard model. • layout Sets the keyboard layout. • variant Sets the keyboard variant. • options Sets keyboard options. Additionally hikari can also configure key repeat using the following attributes. • repeat-delay Takes a positive integer to specify the key repeat delay in millisec- onds. The default value is 600. • repeat-rate Takes a positive integer to specify the key repeat rate in Hz. The default value is 25. Configuring the AT keyboard input device could look like this. inputs { keyboards { "*" = { xkb = { layout = "de(nodeadkeys)" options = "caps:escape" } repeat-rate = 25 repeat-delay = 600 } } } A special name "*" is used to address all keyboards. Values defined for this pseudo keyboard override unconfigured values for any other pointer. Keyboards can also be configured using XKB environment variables. hikari will automatically fall back to these settings if a keyboard is not explicitly configured. • XKB_DEFAULT_LAYOUT • XKB_DEFAULT_MODEL • XKB_DEFAULT_OPTIONS • XKB_DEFAULT_RULES To specify a layout set XKB_DEFAULT_LAYOUT to the desired layout. This needs to happen before starting hikari. XKB_DEFAULT_LAYOUT "de(nodeadkeys),de" Switches Switches can be configured in the switches subsection. A switch just takes an action and functions like a regular key binding using the name of the switch as an identifier. The begin action is triggered when turning the switch on and end is triggered when turning it off. inputs { switches { "Control Method Lid Switch" = lock } } OUTPUTS The outputs section allows users to define the background and position for a output using its name. A special name "*" is used to address all outputs. Values defined for this pseudo output override unconfigured values for any other output. Backgrounds are configured via the background attribute which can be either the path to the background image, or an object which enables the user to define additional attributes for the background image. Back- ground file format has to be PNG. When defining a background object the following attributes are avail- able. • path This attribute giving the path to the wallpaper image file is manda- tory. • fit Specifies how the wallpaper should be displayed. Available options are center, stretch and tile. stretch is the default even when spec- ifying the background image as a string. Configuring output eDP-1 and WL-1 could look like this. outputs { "eDP-1" = { background = "/path/to/wallpaper" } WL-1 = { background = { path = "/path/to/wallpaper" fit = center } } } Output position can be given explicitly using the position attribute. If none is given during startup hikari will automatically configure the output. "eDP-1" = { position = { x = 1680 y = 0 } } "HDMI-A-1" = { position = { x = 0 y = 0 } } 2.3.3 HIKARI(1)
NAME | SYNTAX | DESCRIPTION | CONCEPTS | CONFIGURATION | ACTIONS | USER DEFINED ACTIONS | BINDINGS | MARK CONFIGURATION | VIEW CONFIGURATION | LAYOUTS | UI CONFIGURATION | INPUTS | OUTPUTS
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