config: allow configuring the pointer-revert-key

jay-config/src/_private/client.rs

@@ -1736,6 +1736,10 @@ impl ConfigClient {
         self.window_match_handlers.borrow_mut().remove(&matcher);
     }
 
+    pub fn set_pointer_revert_key(&self, seat: Seat, key: KeySym) {
+        self.send(&ClientMessage::SetPointerRevertKey { seat, key });
+    }
+
     fn handle_msg(&self, msg: &[u8]) {
         self.handle_msg2(msg);
         self.dispatch_futures();

jay-config/src/_private/ipc.rs

@@ -706,6 +706,10 @@ pub enum ClientMessage<'a> {
         matcher: WindowMatcher,
         tile_state: TileState,
     },
+    SetPointerRevertKey {
+        seat: Seat,
+        key: KeySym,
+    },
 }
 
 #[derive(Serialize, Deserialize, Debug)]

jay-config/src/input.rs

@@ -8,7 +8,7 @@ use {
         _private::{DEFAULT_SEAT_NAME, ipc::WorkspaceSource},
         Axis, Direction, ModifiedKeySym, Workspace,
         input::{acceleration::AccelProfile, capability::Capability},
-        keyboard::{Keymap, mods::Modifiers},
+        keyboard::{Keymap, mods::Modifiers, syms::KeySym},
         video::Connector,
         window::Window,
     },
@@ -493,6 +493,16 @@ impl Seat {
     pub fn focus_window(self, window: Window) {
         get!().focus_window(self, window)
     }
+
+    /// Sets the key that can be used to revert the pointer to the default state.
+    ///
+    /// Pressing this key cancels any grabs, drags, selections, etc.
+    ///
+    /// The default is `SYM_Escape`. Setting this to `SYM_NoSymbol` effectively disables
+    /// this functionality.
+    pub fn set_pointer_revert_key(self, sym: KeySym) {
+        get!().set_pointer_revert_key(self, sym);
+    }
 }
 
 /// A focus-follows-mouse mode.