Add "Theaters" to RDE.

A "Theater" is basically the state of the "StackSet". This means that
jumping to a Theater will reset all the windows to where they were
when the user last left that theater, or an empty theater if there is
not.

New windows that a theater does not know about are put in the "hidden"
workspace (which is "*").

1 files changed, 17 insertions, 8 deletions

diff --git a/src/Rahm/Desktop/Keys.hs b/src/Rahm/Desktop/Keys.hs
index edeb77e..556b318 100644
--- a/src/Rahm/Desktop/Keys.hs
+++ b/src/Rahm/Desktop/Keys.hs
@@ -65,6 +65,7 @@ import Rahm.Desktop.Swallow
 import Rahm.Desktop.SwapMaster (swapMaster)
 import Rahm.Desktop.Workspaces
 import Rahm.Desktop.Desktop
+import Rahm.Desktop.Theater
 
 import qualified Rahm.Desktop.StackSet as W
 import Rahm.Desktop.History
@@ -283,7 +284,7 @@ keymap = runKeys $ do
       runMaybeT_ $ (lift . gotoWorkspaceFn) =<< readNextWorkspace
 
     shiftMod $
-      doc "Restore the theater marked with the next typed character." $
+      doc "Restore the desktop marked with the next typed character." $
       runMaybeT_ $ do
         mapNextString $ \_ str -> lift $
           case str of
@@ -297,13 +298,13 @@ keymap = runKeys $ do
     --       (,) <$> readNextWorkspaceName <*> readNextWorkspaceName
 
     controlMod $
-      doc "Move the current focused window to another workspace and view that workspace" $
+      doc "Restore a theater state" $
       runMaybeT_ $ do
-        ws <- readNextWorkspace
-        loc <- lift getCurrentLocation
-        lift $ do
-          moveLocationToWorkspaceFn ws loc
-          gotoWorkspaceFn ws
+        mapNextString $ \_ str -> lift $
+          case str of
+            [ch] | isAlpha ch -> restoreTheater (Just [ch])
+            [' '] -> restoreTheater Nothing
+            _ -> return ()
 
   bind xK_n $ do
     justMod $
@@ -423,13 +424,21 @@ keymap = runKeys $ do
             _ -> return ()
 
     shiftMod $
-      doc "Mark the current theater with the next typed character." $
+      doc "Mark the current desktop with the next typed character." $
       runMaybeT_ $ do
         mapNextString $ \_ str -> lift $
           case str of
             [ch] | isAlpha ch -> saveCurrentDesktop str
             _ -> return ()
 
+    controlMod $
+      doc "Mark the current theater with the next typed character." $
+      runMaybeT_ $ do
+        mapNextString $ \_ str -> lift $
+          case str of
+            [ch] | isAlpha ch -> saveCurrentTheater (Just str)
+            _ -> return ()
+
   bind xK_plus $ do
     justMod $
       doc "Increase the number of windows in the master region." $