Send relative_pointer in frame with pointer; update Smithay

The protocol doesn't specify this, but XWayland does assume relative
pointer events are part of a frame.

This works for now, though a better solution will be needed in Smithay
to also handle pointer constraints where a relative motion may occur
alone, etc.

This seems to fix #159.

Cargo.toml

@@ -87,4 +87,4 @@ debug = true
 lto = "fat"
 
 [patch."https://github.com/Smithay/smithay.git"]
-smithay = { git = "https://github.com/smithay//smithay", rev = "36a0ec69b1" }
+smithay = { git = "https://github.com/smithay//smithay", rev = "1a61e1c13a" }

src/input/mod.rs

@@ -498,24 +498,26 @@ impl State {
                         }
                     }
                     let ptr = seat.get_pointer().unwrap();
-                    ptr.motion(
-                        self,
-                        under.clone(),
-                        &MotionEvent {
-                            location: position,
-                            serial,
-                            time: event.time_msec(),
-                        },
-                    );
+                    // Relative motion is sent first to ensure they're part of a `frame`
+                    // TODO: Find more correct solution
                     ptr.relative_motion(
                         self,
-                        under,
+                        under.clone(),
                         &RelativeMotionEvent {
                             delta: event.delta(),
                             delta_unaccel: event.delta_unaccel(),
                             utime: event.time(),
                         },
                     );
+                    ptr.motion(
+                        self,
+                        under,
+                        &MotionEvent {
+                            location: position,
+                            serial,
+                            time: event.time_msec(),
+                        },
+                    );
                     #[cfg(feature = "debug")]
                     if self.common.seats().position(|x| x == &seat).unwrap() == 0 {
                         let location = if let Some(output) = self.common.shell.outputs.first() {