Unhide the pointer on scroll events (#797)

* Unhide the pointer on scroll events

Since we reset the surface under the pointer when we hide the pointer
(see update_pointer_contents), scroll events don't work when the pointer
is hidden.
So to make scrolling work, we make sure that we unhide the pointer when
a scrolling event occurs.

* Update src/input/mod.rs

---------

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

1 files changed, 6 insertions, 0 deletions

diff --git a/src/input/mod.rs b/src/input/mod.rs
index a8487d14..0bff4637 100644
--- a/src/input/mod.rs
+++ b/src/input/mod.rs
@@ -1744,6 +1744,12 @@ impl State {
     fn on_pointer_axis<I: InputBackend>(&mut self, event: I::PointerAxisEvent) {
         let source = event.source();
 
+        // We received an event for the regular pointer, so show it now. This is also needed for
+        // update_pointer_contents() below to return the real contents, necessary for the pointer
+        // axis event to reach the window.
+        self.niri.pointer_hidden = false;
+        self.niri.tablet_cursor_location = None;
+
         let horizontal_amount_v120 = event.amount_v120(Axis::Horizontal);
         let vertical_amount_v120 = event.amount_v120(Axis::Vertical);