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|
-----------------------------------------------------------------------------
-- |
-- Module : XMonad.Util.Scratchpad
-- Copyright : (c) Braden Shepherdson 2008
-- License : BSD-style (as xmonad)
--
-- Maintainer : Braden.Shepherdson@gmail.com
-- Stability : unstable
-- Portability : unportable
--
-- Very handy hotkey-launched floating terminal window.
--
-----------------------------------------------------------------------------
module XMonad.Util.Scratchpad (
-- * Usage
-- $usage
scratchpadSpawnAction
,scratchpadSpawnActionTerminal
,scratchpadSpawnActionCustom
,scratchpadManageHookDefault
,scratchpadManageHook
,scratchpadFilterOutWorkspace
) where
import XMonad
import XMonad.Core
import XMonad.Hooks.ManageHelpers (doRectFloat)
import XMonad.Actions.DynamicWorkspaces (addHiddenWorkspace)
import Control.Monad (filterM)
import qualified XMonad.StackSet as W
-- $usage
-- Bind a key to 'scratchpadSpawnAction'
-- Pressing it will spawn the terminal, or bring it to the current
-- workspace if it already exists.
-- Pressing the key with the terminal on the current workspace will
-- send it to a hidden workspace called @SP@.
--
-- If you already have a workspace called @SP@, it will use that.
-- @SP@ will also appear in xmobar and dzen status bars. You can tweak your
-- @dynamicLog@ settings to filter it out if you like.
--
-- A tool like detach (<http://detach.sourceforge.net>) turns it
-- into a launchpad for X apps.
--
-- By default, your xmonad terminal is used.
-- The default ManageHook uses a centered, half-screen-wide,
-- quarter-screen-tall window.
-- The key, position and size are configurable.
--
-- The terminal application must support the @-name@ argument.
-- Known supported terminals: rxvt, rxvt-unicode, xterm.
-- Most others are likely to follow the lead set by xterm.
--
-- Bind the following to a key in your xmonad.hs keybindings:
--
-- > scratchpadSpawnAction conf
--
-- Where @conf@ is the configuration.
--
-- And add one of the @scratchpadManageHook*@s to your ManageHook list.
-- The default rectangle is half the screen wide and a quarter of the
-- screen tall, centered.
--
-- | Action to pop up the terminal, for the user to bind to a custom key.
scratchpadSpawnAction :: XConfig l -- ^ The configuration, to retrieve the terminal
-> X ()
scratchpadSpawnAction conf =
scratchpadAction $ spawn $ terminal conf ++ " -name scratchpad"
-- | Action to pop up the terminal, with a directly specified terminal.
scratchpadSpawnActionTerminal :: String -- ^ Name of the terminal program
-> X ()
scratchpadSpawnActionTerminal term =
scratchpadAction $ spawn $ term ++ " -name scratchpad"
-- | Action to pop up any program with the user specifying how to set
-- its resource to \"scratchpad\". For example, with gnome-terminal
-- bind the following to a key:
--
-- > scratchpadSpawnActionCustom "gnome-terminal --name scratchpad"
scratchpadSpawnActionCustom :: String -- ^ Command to spawn a program with resource \"scratchpad\"
-> X ()
scratchpadSpawnActionCustom = scratchpadAction . spawn
-- The heart of the new summon/banish terminal.
-- The logic is thus:
-- 1. if the scratchpad is on the current workspace, send it to the hidden one.
-- - if the scratchpad workspace doesn't exist yet, create it first.
-- 2. if the scratchpad is elsewhere, bring it here.
scratchpadAction :: X () -> X ()
scratchpadAction action = withWindowSet $ \s -> do
filterCurrent <- filterM (runQuery scratchpadQuery)
( (maybe [] W.integrate
. W.stack
. W.workspace
. W.current) s)
case filterCurrent of
(x:_) -> do
if null (filter ( (== scratchpadWorkspaceTag) . W.tag) (W.workspaces s))
then addHiddenWorkspace scratchpadWorkspaceTag
else return ()
windows (W.shiftWin scratchpadWorkspaceTag x)
[] -> do
filterAll <- filterM (runQuery scratchpadQuery) (W.allWindows s)
case filterAll of
(x:_) -> windows (W.shiftWin (W.currentTag s) x)
[] -> action -- run the provided action to spawn it.
-- factored out since it appears in several places
scratchpadWorkspaceTag :: String
scratchpadWorkspaceTag = "SP"
-- factored out since this is common to both the ManageHook and the action
scratchpadQuery :: Query Bool
scratchpadQuery = resource =? "scratchpad"
-- | The ManageHook, with the default rectangle:
-- Half the screen wide, a quarter of the screen tall, centered.
scratchpadManageHookDefault :: ManageHook
scratchpadManageHookDefault = scratchpadManageHook scratchpadDefaultRect
-- | The ManageHook, with a user-specified StackSet.RationalRect,
-- e.g., for a terminal 4/10 of the screen width from the left, half
-- the screen height from the top, and 6/10 of the screen width by
-- 3/10 the screen height, use:
--
-- > scratchpadManageHook (W.RationalRect 0.4 0.5 0.6 0.3)
scratchpadManageHook :: W.RationalRect -- ^ User-specified screen rectangle.
-> ManageHook
scratchpadManageHook rect = scratchpadQuery --> doRectFloat rect
-- | Transforms a workspace list containing the SP workspace into one that
-- doesn't contain it. Intended for use with logHooks.
scratchpadFilterOutWorkspace :: [WindowSpace] -> [WindowSpace]
scratchpadFilterOutWorkspace = filter (\(W.Workspace tag _ _) -> tag /= scratchpadWorkspaceTag)
scratchpadDefaultRect :: W.RationalRect
scratchpadDefaultRect = W.RationalRect 0.25 0.375 0.5 0.25
|
