sane-input-handler: factor out the side effects from the mapping

hosts/common/programs/sane-input-handler/sane-input-handler

@@ -274,6 +274,68 @@ proc toggleKeyboard {
   }
 }
 
+proc togglePlayback {
+  effect playerctl play-pause
+}
+
+proc volumeUp {
+  effect wpctl set-volume '@DEFAULT_AUDIO_SINK@' "$VOL_INCR"%+
+}
+
+proc volumeDown {
+  effect wpctl set-volume '@DEFAULT_AUDIO_SINK@' "$VOL_INCR"%-
+}
+
+proc restartBonsai {
+  effect systemctl restart bonsaid
+}
+
+proc seekForward {
+  effect playerctl position 30+
+}
+
+proc seekBackward {
+  effect playerctl position 10-
+}
+
+proc killWindow {
+  effect swamsg kill
+}
+
+proc takeScreenshot {
+  effect sane-open --application sane-screenshot.desktop
+}
+
+proc openCamera {
+  effect sane-open --auto-keyboard --application "$CAMERA"
+}
+
+proc rotateCCW {
+  effect swaymsg -- output '-' transform 90 anticlockwise
+}
+
+proc rotateCW {
+  effect swaymsg -- output '-' transform 90 clockwise
+}
+
+proc openFilebrowser {
+  effect sane-open --auto-keyboard --application rofi-filebrowser.desktop
+}
+
+proc openFilebrowserWithApps {
+  # reset fs directory: useful in case you get stuck in broken directory (e.g. one which lacks a `..` entry)
+  effect rm -f ~/.cache/rofi/rofi3.filebrowsercache
+  effect sane-open --auto-keyboard --application rofi.desktop
+}
+
+proc openTerminal {
+  effect sane-open --auto-keyboard --application xdg-terminal-exec.desktop
+}
+
+proc killRofi {
+  effect killall -9 rofi
+}
+
 ## DISPATCHERS
 
 proc dispatchDefault (action) {
@@ -284,14 +346,14 @@ proc dispatchDefault (action) {
     }
     ("power_hold") {
       # power twice => toggle media player
-      handleWith effect playerctl play-pause
+      handleWith togglePlayback
     }
 
     / ^ 'volup_tap_' d+ $ / {
-      handleWith effect wpctl set-volume '@DEFAULT_AUDIO_SINK@' "$VOL_INCR"%+
+      handleWith volumeUp
     }
     / ^ 'voldown_tap_' d+ $ / {
-      handleWith effect wpctl set-volume '@DEFAULT_AUDIO_SINK@' "$VOL_INCR"%-
+      handleWith volumeDown
     }
   }
 }
@@ -304,13 +366,13 @@ proc dispatchOff (action) {
     }
     ("power_tap_1_hold") {
       # power tap->hold: escape hatch for when bonsaid locks up
-      handleWith effect systemctl restart bonsaid
+      handleWith restartBonsai
     }
     / ^ 'volup_hold_' d+ $ / {
-      handleWith effect playerctl position 30+
+      handleWith seekForward
     }
     / ^ 'voldown_hold_' d+ $ / {
-      handleWith effect playerctl position 10-
+      handleWith seekBackward
     }
   }
 }
@@ -322,34 +384,32 @@ proc dispatchOn (action) {
     ("power_tap_1_hold") {
       # power tap->hold: kill active window
       # TODO: disable this if locked (with e.g. schlock, swaylock, etc)
-      handleWith effect swaymsg kill
+      handleWith killWindow
     }
     ("power_and_volup") {
       # power (hold) -> volup: take screenshot
-      handleWith effect sane-open --application sane-screenshot.desktop
+      handleWith screenshot
     }
     ("power_and_voldown") {
       # power (hold) -> voldown: open camera
-      handleWith effect sane-open --auto-keyboard --application "$CAMERA"
+      handleWith openCamera
     }
     ("power_then_volup") {
       # power (tap) -> volup: rotate CCW
-      handleWith effect swaymsg -- output '-' transform 90 anticlockwise
+      handleWith rotateCCW
     }
     ("power_then_voldown") {
       # power (tap) -> voldown: rotate CW
-      handleWith effect swaymsg -- output '-' transform 90 clockwise
+      handleWith rotateCW
     }
 
     ("volup_tap_1") {
       # volume up once: filesystem browser
-      handleWith effect sane-open --auto-keyboard --application rofi-filebrowser.desktop
+      handleWith openFilebrowser
     }
     ("volup_hold_1") {
       # volume up hold: browse files and apps
-      # reset fs directory: useful in case you get stuck in broken directory (e.g. one which lacks a `..` entry)
-      rm -f ~/.cache/rofi/rofi3.filebrowsercache
-      handleWith effect sane-open --auto-keyboard --application rofi.desktop
+      handleWith openFilebrowserWithApps
     }
 
     ("voldown_start") {
@@ -359,7 +419,7 @@ proc dispatchOn (action) {
     ("voldown_hold_1") {
       # hold voldown to launch terminal
       # note we already triggered the keyboard; that's fine: usually keyboard + terminal go together :)
-      handleWith effect sane-open --auto-keyboard --application xdg-terminal-exec.desktop
+      handleWith openTerminal
     }
     ("voldown_tap_1") {
       # swallow, to prevent keyboard from also triggering media controls
@@ -376,7 +436,7 @@ proc dispatchInhibited (action) {
   case (action) {
     ("power_tap_1_hold") {
       # power hold: escape hatch in case rofi has hung
-      handleWith effect killall -9 rofi
+      handleWith killRofi
     }
     (else) {
       # eat everything else (and let rofi consume it)