tree: never focus wl-subsurface surfaces

src/ifs/wl_seat/event_handling.rs

@@ -503,8 +503,10 @@ impl WlSeatGlobal {
         };
         self.surface_pointer_event(0, surface, |p| p.send_button(serial, 0, button, state));
         self.surface_pointer_frame(surface);
-        if pressed && surface.accepts_kb_focus() {
-            self.focus_node(surface.clone());
+        if pressed {
+            if let Some(node) = surface.get_focus_node(self.id) {
+                self.focus_node(node);
+            }
         }
     }
 }

src/ifs/wl_surface.rs

@@ -163,8 +163,8 @@ trait SurfaceExt {
         None
     }
 
-    fn accepts_kb_focus(&self) -> bool {
-        true
+    fn focus_node(&self) -> Option<Rc<dyn Node>> {
+        None
     }
 }
 
@@ -266,10 +266,11 @@ impl WlSurface {
         Ok(cursor)
     }
 
-    pub fn accepts_kb_focus(&self) -> bool {
+    pub fn get_focus_node(&self, seat: SeatId) -> Option<Rc<dyn Node>> {
         match self.toplevel.get() {
-            Some(tl) => tl.tl_accepts_keyboard_focus(),
-            _ => self.ext.get().accepts_kb_focus(),
+            Some(tl) if tl.tl_accepts_keyboard_focus() => tl.tl_focus_child(seat),
+            Some(_) => None,
+            _ => self.ext.get().focus_node(),
         }
     }
 

src/ifs/wl_surface/wl_subsurface.rs

@@ -296,10 +296,6 @@ impl SurfaceExt for WlSubsurface {
     fn into_subsurface(self: Rc<Self>) -> Option<Rc<WlSubsurface>> {
         Some(self)
     }
-
-    fn accepts_kb_focus(&self) -> bool {
-        self.parent.accepts_kb_focus()
-    }
 }
 
 #[derive(Debug, Error)]

src/ifs/wl_surface/xdg_surface.rs

@@ -360,10 +360,6 @@ impl SurfaceExt for XdgSurface {
     fn extents_changed(&self) {
         self.update_extents();
     }
-
-    fn accepts_kb_focus(&self) -> bool {
-        self.role.get() == XdgSurfaceRole::XdgToplevel
-    }
 }
 
 #[derive(Debug, Error)]

src/ifs/wl_surface/xdg_surface/xdg_toplevel.rs

@@ -6,7 +6,7 @@ use {
         cursor::KnownCursor,
         fixed::Fixed,
         ifs::{
-            wl_seat::{NodeSeatState, WlSeatGlobal},
+            wl_seat::{NodeSeatState, SeatId, WlSeatGlobal},
             wl_surface::xdg_surface::{XdgSurface, XdgSurfaceError, XdgSurfaceExt},
         },
         leaks::Tracker,
@@ -437,10 +437,6 @@ impl ToplevelNode for XdgToplevel {
         &self.toplevel_data
     }
 
-    fn tl_default_focus_child(&self) -> Option<Rc<dyn Node>> {
-        Some(self.xdg.surface.clone())
-    }
-
     fn tl_set_active(&self, active: bool) {
         let changed = {
             let mut states = self.states.borrow_mut();
@@ -456,6 +452,10 @@ impl ToplevelNode for XdgToplevel {
         }
     }
 
+    fn tl_focus_child(&self, _seat: SeatId) -> Option<Rc<dyn Node>> {
+        Some(self.xdg.surface.clone())
+    }
+
     fn tl_set_workspace(self: Rc<Self>, ws: &Rc<WorkspaceNode>) {
         self.toplevel_data.workspace.set(Some(ws.clone()));
         self.xdg.set_workspace(ws);

src/ifs/wl_surface/xwindow.rs

@@ -4,7 +4,7 @@ use {
         cursor::KnownCursor,
         fixed::Fixed,
         ifs::{
-            wl_seat::{NodeSeatState, WlSeatGlobal},
+            wl_seat::{NodeSeatState, SeatId, WlSeatGlobal},
             wl_surface::{SurfaceExt, SurfaceRole, WlSurface, WlSurfaceError},
         },
         rect::Rect,
@@ -383,10 +383,6 @@ impl ToplevelNode for Xwindow {
         &self.toplevel_data
     }
 
-    fn tl_default_focus_child(&self) -> Option<Rc<dyn Node>> {
-        Some(self.surface.clone())
-    }
-
     fn tl_accepts_keyboard_focus(&self) -> bool {
         self.data.info.never_focus.get().not()
             && self.data.info.input_model.get() != XInputModel::None
@@ -400,6 +396,10 @@ impl ToplevelNode for Xwindow {
             .push(XWaylandEvent::Activate(self.data.clone()));
     }
 
+    fn tl_focus_child(&self, _seat: SeatId) -> Option<Rc<dyn Node>> {
+        Some(self.surface.clone())
+    }
+
     fn tl_change_extents(self: Rc<Self>, rect: &Rect) {
         // log::info!("xwin {} change_extents {:?}", self.data.window_id, rect);
         let old = self.data.info.extents.replace(*rect);

src/ifs/wl_surface/zwlr_layer_surface_v1.rs

@@ -356,8 +356,12 @@ impl SurfaceExt for ZwlrLayerSurfaceV1 {
         }
     }
 
-    fn accepts_kb_focus(&self) -> bool {
-        self.keyboard_interactivity.get() != KI_NONE
+    fn focus_node(&self) -> Option<Rc<dyn Node>> {
+        if self.keyboard_interactivity.get() != KI_NONE {
+            Some(self.surface.clone())
+        } else {
+            None
+        }
     }
 }
 

src/it/test_backend.rs

@@ -234,6 +234,19 @@ impl Connector for TestConnector {
     }
 }
 
+pub struct TestMouseClick {
+    pub mouse: Rc<TestBackendMouse>,
+    pub button: u32,
+}
+
+impl Drop for TestMouseClick {
+    fn drop(&mut self) {
+        self.mouse
+            .common
+            .event(InputEvent::Button(self.button, KeyState::Released));
+    }
+}
+
 pub struct TestBackendMouse {
     pub common: TestInputDeviceCommon,
     pub transform_matrix: Cell<TransformMatrix>,
@@ -252,6 +265,15 @@ impl TestBackendMouse {
             dy_unaccelerated: Fixed::from_f64(dy),
         })
     }
+
+    pub fn click(self: &Rc<Self>, button: u32) -> TestMouseClick {
+        self.common
+            .event(InputEvent::Button(button, KeyState::Pressed));
+        TestMouseClick {
+            mouse: self.clone(),
+            button,
+        }
+    }
 }
 
 pub struct TestBackendKb {

src/it/test_client.rs

@@ -79,7 +79,8 @@ impl TestClient {
     }
 
     pub async fn sync(&self) {
-        self.tran.sync().await
+        self.run.sync().await;
+        self.tran.sync().await;
     }
 
     pub async fn take_screenshot(&self) -> Result<Vec<u8>, TestError> {

src/it/test_ifs/test_pointer.rs

@@ -3,7 +3,7 @@ use {
         ifs::wl_seat::wl_pointer::WlPointer,
         it::{
             test_error::TestResult, test_object::TestObject, test_transport::TestTransport,
-            testrun::ParseFull,
+            test_utils::test_expected_event::TEEH, testrun::ParseFull,
         },
         utils::{buffd::MsgParser, clonecell::CloneCell},
         wire::{wl_pointer::*, WlPointerId},
@@ -16,6 +16,9 @@ pub struct TestPointer {
     pub tran: Rc<TestTransport>,
     pub server: CloneCell<Option<Rc<WlPointer>>>,
     pub destroyed: Cell<bool>,
+    pub leave: TEEH<Leave>,
+    pub enter: TEEH<Enter>,
+    pub motion: TEEH<Motion>,
 }
 
 impl TestPointer {
@@ -27,17 +30,20 @@ impl TestPointer {
     }
 
     fn handle_enter(&self, parser: MsgParser<'_, '_>) -> TestResult {
-        let _ev = Enter::parse_full(parser)?;
+        let ev = Enter::parse_full(parser)?;
+        self.enter.push(ev);
         Ok(())
     }
 
     fn handle_leave(&self, parser: MsgParser<'_, '_>) -> TestResult {
-        let _ev = Leave::parse_full(parser)?;
+        let ev = Leave::parse_full(parser)?;
+        self.leave.push(ev);
         Ok(())
     }
 
     fn handle_motion(&self, parser: MsgParser<'_, '_>) -> TestResult {
-        let _ev = Motion::parse_full(parser)?;
+        let ev = Motion::parse_full(parser)?;
+        self.motion.push(ev);
         Ok(())
     }
 

src/it/test_ifs/test_seat.rs

@@ -63,6 +63,9 @@ impl TestSeat {
             tran: self.tran.clone(),
             server: Default::default(),
             destroyed: Default::default(),
+            leave: Rc::new(Default::default()),
+            enter: Rc::new(Default::default()),
+            motion: Rc::new(Default::default()),
         });
         self.tran.add_obj(pointer.clone())?;
         self.tran.sync().await;

src/it/test_ifs/test_shm.rs

@@ -1,8 +1,13 @@
 use {
     crate::{
+        format::ARGB8888,
         it::{
-            test_error::TestError, test_ifs::test_shm_pool::TestShmPool, test_mem::TestMem,
-            test_object::TestObject, test_transport::TestTransport, testrun::ParseFull,
+            test_error::{TestError, TestResult},
+            test_ifs::{test_shm_buffer::TestShmBuffer, test_shm_pool::TestShmPool},
+            test_mem::TestMem,
+            test_object::TestObject,
+            test_transport::TestTransport,
+            testrun::ParseFull,
         },
         utils::{buffd::MsgParser, clonecell::CloneCell, copyhashmap::CopyHashMap},
         wire::{wl_shm::*, WlShmId},
@@ -43,6 +48,11 @@ impl TestShm {
         Ok(pool)
     }
 
+    pub fn create_buffer(&self, width: i32, height: i32) -> TestResult<Rc<TestShmBuffer>> {
+        let pool = self.create_pool((width * height * 4) as _)?;
+        pool.create_buffer(0, width, height, width * 4, ARGB8888)
+    }
+
     fn handle_format(&self, parser: MsgParser<'_, '_>) -> Result<(), TestError> {
         let ev = Format::parse_full(parser)?;
         self.formats.set(ev.format, ());

src/it/tests.rs

@@ -37,6 +37,7 @@ mod t0008_map_focus;
 mod t0009_tab_focus;
 mod t0010_fullscreen_focus;
 mod t0011_set_keymap;
+mod t0012_subsurface_focus;
 
 pub trait TestCase: Sync {
     fn name(&self) -> &'static str;
@@ -66,5 +67,6 @@ pub fn tests() -> Vec<&'static dyn TestCase> {
         t0009_tab_focus,
         t0010_fullscreen_focus,
         t0011_set_keymap,
+        t0012_subsurface_focus,
     }
 }

src/it/tests/t0012_subsurface_focus.rs

@@ -0,0 +1,69 @@
+use {
+    crate::{
+        ifs::wl_seat::BTN_LEFT,
+        it::{
+            test_error::{TestErrorExt, TestResult},
+            testrun::TestRun,
+        },
+    },
+    std::rc::Rc,
+};
+
+testcase!();
+
+/// Test that clicking on a subsurface keeps the toplevel surface focused
+async fn test(run: Rc<TestRun>) -> TestResult {
+    let ds = run.create_default_setup().await?;
+    ds.mouse.rel(1.0, 1.0);
+    run.sync().await;
+
+    let client = run.create_client().await?;
+    let cds = client.get_default_seat().await?;
+
+    let window = client.create_window().await?;
+    window.map().await?;
+    window.map().await?;
+
+    let ns = client.comp.create_surface().await?;
+    let nss = client.sub.get_subsurface(ns.id, window.surface.id).await?;
+    nss.set_position(100, 100)?;
+    let buffer = client.shm.create_buffer(100, 100)?;
+    ns.attach(buffer.id)?;
+
+    run.cfg.set_fullscreen(ds.seat.id(), true)?;
+    client.sync().await;
+    window.map().await;
+
+    ds.mouse.rel(-1000.0, -1000.0);
+
+    client.sync().await;
+
+    let motions = cds.pointer.motion.expect()?;
+    let enters = cds.pointer.enter.expect()?;
+    let leaves = cds.pointer.leave.expect()?;
+
+    ds.mouse.rel(150.0, 150.0);
+
+    client.sync().await;
+
+    tassert!(motions.next().is_err());
+    let leave = leaves.next().with_context(|| "leaves")?;
+    tassert_eq!(leave.surface, window.surface.id);
+    let enter = enters.next().with_context(|| "enters")?;
+    tassert_eq!(enter.surface, ns.id);
+
+    tassert!(leaves.next().is_err());
+    tassert!(enters.next().is_err());
+
+    let kenters = cds.kb.enter.expect()?;
+    let kleaves = cds.kb.leave.expect()?;
+
+    ds.mouse.click(BTN_LEFT);
+
+    client.sync().await;
+
+    tassert!(kleaves.next().is_err());
+    tassert!(kenters.next().is_err());
+
+    Ok(())
+}

src/tree/toplevel.rs

@@ -23,7 +23,10 @@ pub trait ToplevelNode: Node {
     fn tl_into_dyn(self: Rc<Self>) -> Rc<dyn ToplevelNode>;
 
     fn tl_data(&self) -> &ToplevelData;
-    fn tl_default_focus_child(&self) -> Option<Rc<dyn Node>>;
+
+    fn tl_default_focus_child(&self) -> Option<Rc<dyn Node>> {
+        None
+    }
 
     fn tl_accepts_keyboard_focus(&self) -> bool {
         true