wayland: implement alpha_modifier_v1

src/it/test_ifs/test_alpha_modifier.rs

@@ -0,0 +1,49 @@
+use {
+    crate::{
+        it::{
+            test_error::TestResult,
+            test_ifs::{
+                test_alpha_modifier_surface::TestAlphaModifierSurface, test_surface::TestSurface,
+            },
+            test_object::TestObject,
+            test_transport::TestTransport,
+        },
+        wire::{wp_alpha_modifier_v1::*, WpAlphaModifierV1Id},
+    },
+    std::{cell::Cell, rc::Rc},
+};
+
+pub struct TestAlphaModifier {
+    pub id: WpAlphaModifierV1Id,
+    pub tran: Rc<TestTransport>,
+}
+
+impl TestAlphaModifier {
+    pub fn new(tran: &Rc<TestTransport>) -> Self {
+        Self {
+            id: tran.id(),
+            tran: tran.clone(),
+        }
+    }
+
+    pub fn get_surface(&self, surface: &TestSurface) -> TestResult<Rc<TestAlphaModifierSurface>> {
+        let obj = Rc::new(TestAlphaModifierSurface {
+            id: self.tran.id(),
+            tran: self.tran.clone(),
+            destroyed: Cell::new(false),
+        });
+        self.tran.add_obj(obj.clone())?;
+        self.tran.send(GetSurface {
+            self_id: self.id,
+            id: obj.id,
+            surface: surface.id,
+        })?;
+        Ok(obj)
+    }
+}
+
+test_object! {
+    TestAlphaModifier, WpAlphaModifierV1;
+}
+
+impl TestObject for TestAlphaModifier {}

src/it/test_ifs/test_alpha_modifier_surface.rs

@@ -0,0 +1,41 @@
+use {
+    crate::{
+        it::{test_error::TestError, test_object::TestObject, test_transport::TestTransport},
+        wire::{wp_alpha_modifier_surface_v1::*, WpAlphaModifierSurfaceV1Id},
+    },
+    std::{cell::Cell, rc::Rc},
+};
+
+pub struct TestAlphaModifierSurface {
+    pub id: WpAlphaModifierSurfaceV1Id,
+    pub tran: Rc<TestTransport>,
+    pub destroyed: Cell<bool>,
+}
+
+impl TestAlphaModifierSurface {
+    pub fn destroy(&self) -> Result<(), TestError> {
+        if !self.destroyed.replace(true) {
+            self.tran.send(Destroy { self_id: self.id })?;
+        }
+        Ok(())
+    }
+
+    pub fn set_multiplier(&self, factor: f64) -> Result<(), TestError> {
+        self.tran.send(SetMultiplier {
+            self_id: self.id,
+            factor: (factor * u32::MAX as f64) as u32,
+        })
+    }
+}
+
+impl Drop for TestAlphaModifierSurface {
+    fn drop(&mut self) {
+        let _ = self.destroy();
+    }
+}
+
+test_object! {
+    TestAlphaModifierSurface, WpAlphaModifierSurfaceV1;
+}
+
+impl TestObject for TestAlphaModifierSurface {}

src/it/test_ifs/test_registry.rs

@@ -5,7 +5,8 @@ use {
         it::{
             test_error::TestError,
             test_ifs::{
-                test_compositor::TestCompositor, test_content_type_manager::TestContentTypeManager,
+                test_alpha_modifier::TestAlphaModifier, test_compositor::TestCompositor,
+                test_content_type_manager::TestContentTypeManager,
                 test_cursor_shape_manager::TestCursorShapeManager,
                 test_data_control_manager::TestDataControlManager,
                 test_data_device_manager::TestDataDeviceManager, test_dmabuf::TestDmabuf,
@@ -50,6 +51,7 @@ pub struct TestRegistrySingletons {
     pub zwlr_data_control_manager_v1: u32,
     pub zwp_linux_dmabuf_v1: u32,
     pub xdg_toplevel_drag_manager_v1: u32,
+    pub wp_alpha_modifier_v1: u32,
 }
 
 pub struct TestRegistry {
@@ -73,6 +75,7 @@ pub struct TestRegistry {
     pub data_control_manager: CloneCell<Option<Rc<TestDataControlManager>>>,
     pub dmabuf: CloneCell<Option<Rc<TestDmabuf>>>,
     pub drag_manager: CloneCell<Option<Rc<TestToplevelDragManager>>>,
+    pub alpha_modifier: CloneCell<Option<Rc<TestAlphaModifier>>>,
     pub seats: CopyHashMap<GlobalName, Rc<WlSeatGlobal>>,
 }
 
@@ -140,6 +143,7 @@ impl TestRegistry {
             zwlr_data_control_manager_v1,
             zwp_linux_dmabuf_v1,
             xdg_toplevel_drag_manager_v1,
+            wp_alpha_modifier_v1,
         };
         self.singletons.set(Some(singletons.clone()));
         Ok(singletons)
@@ -227,6 +231,13 @@ impl TestRegistry {
         1,
         TestToplevelDragManager
     );
+    create_singleton!(
+        get_alpha_modifier,
+        alpha_modifier,
+        wp_alpha_modifier_v1,
+        1,
+        TestAlphaModifier
+    );
 
     pub fn bind<O: TestObject>(
         &self,