seat: add framework to select toplevels

src/it/tests.rs

@@ -73,6 +73,7 @@ mod t0038_subsurface_parent_state;
 mod t0039_alpha_modifier;
 mod t0040_virtual_keyboard;
 mod t0041_input_method;
+mod t0042_toplevel_select;
 
 pub trait TestCase: Sync {
     fn name(&self) -> &'static str;
@@ -133,5 +134,6 @@ pub fn tests() -> Vec<&'static dyn TestCase> {
         t0039_alpha_modifier,
         t0040_virtual_keyboard,
         t0041_input_method,
+        t0042_toplevel_select,
     }
 }

src/it/tests/t0042_toplevel_select.rs

@@ -0,0 +1,68 @@
+use {
+    crate::{
+        ifs::wl_seat::{ToplevelSelector, BTN_LEFT},
+        it::{test_error::TestResult, testrun::TestRun},
+        tree::{Node, ToplevelNode},
+        utils::clonecell::CloneCell,
+    },
+    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.map2().await?;
+    let win2 = client.create_window().await?;
+    win2.map2().await?;
+    client.sync().await;
+
+    let win1pos = win1.tl.server.node_absolute_position().position();
+    let win2pos = win2.tl.server.node_absolute_position().position();
+    ds.mouse.abs(
+        &ds.connector,
+        win1pos.0 as f64 + 2.0,
+        win1pos.1 as f64 + 2.0,
+    );
+    run.sync().await;
+
+    struct Selector(CloneCell<Option<Rc<dyn ToplevelNode>>>);
+    impl ToplevelSelector for Rc<Selector> {
+        fn set(&self, toplevel: Rc<dyn ToplevelNode>) {
+            self.0.set(Some(toplevel));
+        }
+    }
+    let selector = Rc::new(Selector(Default::default()));
+    ds.seat.select_toplevel(selector.clone());
+
+    client.compare_screenshot("1", false).await?;
+
+    ds.mouse.abs(
+        &ds.connector,
+        win2pos.0 as f64 + 2.0,
+        win2pos.1 as f64 + 2.0,
+    );
+    run.sync().await;
+
+    client.compare_screenshot("2", false).await?;
+
+    ds.kb.press(1);
+    run.sync().await;
+    tassert!(selector.0.get().is_none());
+
+    ds.seat.select_toplevel(selector.clone());
+
+    client.compare_screenshot("3", false).await?;
+
+    ds.mouse.click(BTN_LEFT);
+
+    client.compare_screenshot("4", false).await?;
+
+    let tl = selector.0.get().expect("no toplevel selected");
+    tassert_eq!(tl.node_id(), win2.tl.server.node_id);
+
+    Ok(())
+}