support binding actions to switches (#747)

* support spawn action on switch events

this adds a new config section named `switch-events`
that allows to bind `spawn` action to certain switch
toggles.

* Expand docs

---------

Co-authored-by: Ivan Molodetskikh <yalterz@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/niri-config/src/lib.rs b/niri-config/src/lib.rs
index c4452534..79bddc31 100644
--- a/niri-config/src/lib.rs
+++ b/niri-config/src/lib.rs
@@ -54,6 +54,8 @@ pub struct Config {
     #[knuffel(child, default)]
     pub binds: Binds,
     #[knuffel(child, default)]
+    pub switch_events: SwitchBinds,
+    #[knuffel(child, default)]
     pub debug: DebugConfig,
     #[knuffel(children(name = "workspace"))]
     pub workspaces: Vec<Workspace>,
@@ -1088,6 +1090,24 @@ bitflags! {
     }
 }
 
+#[derive(knuffel::Decode, Debug, Default, Clone, PartialEq)]
+pub struct SwitchBinds {
+    #[knuffel(child)]
+    pub lid_open: Option<SwitchAction>,
+    #[knuffel(child)]
+    pub lid_close: Option<SwitchAction>,
+    #[knuffel(child)]
+    pub tablet_mode_on: Option<SwitchAction>,
+    #[knuffel(child)]
+    pub tablet_mode_off: Option<SwitchAction>,
+}
+
+#[derive(knuffel::Decode, Debug, Clone, PartialEq)]
+pub struct SwitchAction {
+    #[knuffel(child, unwrap(arguments))]
+    pub spawn: Vec<String>,
+}
+
 // Remember to add new actions to the CLI enum too.
 #[derive(knuffel::Decode, Debug, Clone, PartialEq)]
 pub enum Action {
@@ -3079,6 +3099,11 @@ mod tests {
                 Mod+WheelScrollDown cooldown-ms=150 { focus-workspace-down; }
             }
 
+            switch-events {
+                tablet-mode-on { spawn "bash" "-c" "gsettings set org.gnome.desktop.a11y.applications screen-keyboard-enabled true"; }
+                tablet-mode-off { spawn "bash" "-c" "gsettings set org.gnome.desktop.a11y.applications screen-keyboard-enabled false"; }
+            }
+
             debug {
                 render-drm-device "/dev/dri/renderD129"
             }
@@ -3426,6 +3451,24 @@ mod tests {
                         allow_when_locked: false,
                     },
                 ]),
+                switch_events: SwitchBinds {
+                    lid_open: None,
+                    lid_close: None,
+                    tablet_mode_on: Some(SwitchAction {
+                        spawn: vec![
+                            "bash".to_owned(),
+                            "-c".to_owned(),
+                            "gsettings set org.gnome.desktop.a11y.applications screen-keyboard-enabled true".to_owned(),
+                        ],
+                    }),
+                    tablet_mode_off: Some(SwitchAction {
+                        spawn: vec![
+                            "bash".to_owned(),
+                            "-c".to_owned(),
+                            "gsettings set org.gnome.desktop.a11y.applications screen-keyboard-enabled false".to_owned(),
+                        ],
+                    }),
+                },
                 debug: DebugConfig {
                     render_drm_device: Some(PathBuf::from("/dev/dri/renderD129")),
                     ..Default::default()