it: test float restacking

src/it/test_ifs/test_xdg_toplevel.rs

@@ -7,7 +7,7 @@ use {
             test_transport::TestTransport,
             testrun::ParseFull,
         },
-        tree::{ContainerNode, ToplevelNodeBase},
+        tree::{ContainerNode, ContainingNode, FloatNode, ToplevelNodeBase},
         utils::buffd::MsgParser,
         wire::{xdg_toplevel::*, XdgToplevelId},
     },
@@ -36,16 +36,28 @@ pub struct TestXdgToplevel {
 }
 
 impl TestXdgToplevel {
-    pub fn container_parent(&self) -> TestResult<Rc<ContainerNode>> {
-        let parent = match self.server.tl_data().parent.get() {
-            Some(p) => p,
+    pub fn parent(&self) -> TestResult<Rc<dyn ContainingNode>> {
+        match self.server.tl_data().parent.get() {
+            Some(p) => Ok(p),
             _ => bail!("toplevel has no parent"),
-        };
+        }
+    }
+
+    pub fn container_parent(&self) -> TestResult<Rc<ContainerNode>> {
+        let parent = self.parent()?;
         match parent.node_into_container() {
             Some(p) => Ok(p),
             _ => bail!("toplevel parent is not a container"),
         }
     }
+
+    pub fn float_parent(&self) -> TestResult<Rc<FloatNode>> {
+        let parent = self.parent()?;
+        match parent.node_into_float() {
+            Some(p) => Ok(p),
+            _ => bail!("toplevel parent is not a float"),
+        }
+    }
 }
 
 impl TestXdgToplevelCore {

src/it/tests.rs

@@ -58,6 +58,7 @@ mod t0024_foreign_toplevel_list;
 mod t0025_dnd_focus_change;
 mod t0026_output_transform;
 mod t0027_input_region;
+mod t0028_top_level_restacking;
 
 pub trait TestCase: Sync {
     fn name(&self) -> &'static str;
@@ -104,5 +105,6 @@ pub fn tests() -> Vec<&'static dyn TestCase> {
         t0025_dnd_focus_change,
         t0026_output_transform,
         t0027_input_region,
+        t0028_top_level_restacking,
     }
 }

src/it/tests/t0028_top_level_restacking.rs

@@ -0,0 +1,43 @@
+use {
+    crate::{
+        ifs::wl_seat::BTN_LEFT,
+        it::{test_error::TestResult, testrun::TestRun},
+    },
+    std::rc::Rc,
+};
+
+testcase!();
+
+async fn test(run: Rc<TestRun>) -> TestResult {
+    let ds = run.create_default_setup().await?;
+
+    let client = run.create_client().await?;
+
+    let win1 = client.create_window().await?;
+    win1.set_color(255, 0, 0, 255);
+    win1.map2().await?;
+    run.cfg.set_floating(ds.seat.id(), true)?;
+
+    let win2 = client.create_window().await?;
+    win2.set_color(0, 255, 0, 255);
+    win2.map2().await?;
+    run.cfg.set_floating(ds.seat.id(), true)?;
+
+    {
+        let parent = win1.tl.float_parent()?;
+        let rect = parent.position.get();
+        parent.position.set(rect.at_point(100, 100));
+        parent.schedule_layout();
+    }
+
+    client.sync().await;
+    client.compare_screenshot("1", false).await?;
+
+    ds.move_to(110, 110);
+    ds.mouse.click(BTN_LEFT);
+
+    client.sync().await;
+    client.compare_screenshot("2", false).await?;
+
+    Ok(())
+}

src/tree/float.rs

@@ -136,7 +136,7 @@ impl FloatNode {
         self.schedule_render_titles();
     }
 
-    fn schedule_layout(self: &Rc<Self>) {
+    pub fn schedule_layout(self: &Rc<Self>) {
         if !self.layout_scheduled.replace(true) {
             self.state.pending_float_layout.push(self.clone());
         }