head-management: add compositor-space-info-v1 extension

src/ifs/head_management/head_management_macros.rs

@@ -389,4 +389,5 @@ macro_rules! declare_extensions {
 
 declare_extensions! {
     core_info_v1: CoreInfoV1,
+    compositor_space_info_v1: CompositorSpaceInfoV1,
 }

src/ifs/head_management/jay_head_ext.rs

@@ -1 +1,2 @@
+pub(super) mod jay_head_ext_compositor_space_info_v1;
 pub(super) mod jay_head_ext_core_info_v1;

src/ifs/head_management/jay_head_ext/jay_head_ext_compositor_space_info_v1.rs

@@ -0,0 +1,113 @@
+use {
+    crate::{
+        ifs::head_management::HeadState,
+        utils::transform_ext::TransformExt,
+        wire::{
+            jay_head_ext_compositor_space_info_v1::{
+                Disabled, Enabled, Inside, JayHeadExtCompositorSpaceInfoV1RequestHandler, Outside,
+                Position, Scaling, Size, Transform,
+            },
+            jay_head_manager_ext_compositor_space_info_v1::JayHeadManagerExtCompositorSpaceInfoV1RequestHandler,
+        },
+    },
+    std::rc::Rc,
+};
+
+impl_compositor_space_info_v1! {
+    version = 1,
+    after_announce = after_announce,
+    after_transaction = after_transaction,
+}
+
+impl HeadName {
+    fn after_announce(&self, shared: &HeadState) {
+        self.send_enabled(shared);
+        self.send_inside_outside(shared);
+    }
+
+    fn after_transaction(&self, shared: &HeadState, tran: &HeadState) {
+        if shared.connector_enabled != tran.connector_enabled {
+            self.send_enabled(shared);
+        }
+        if shared.in_compositor_space != tran.in_compositor_space {
+            self.send_inside_outside(shared);
+        } else if shared.in_compositor_space {
+            if shared.position != tran.position {
+                self.send_position(shared);
+            }
+            if shared.size != tran.size {
+                self.send_size(shared);
+            }
+            if shared.transform != tran.transform {
+                self.send_transform(shared);
+            }
+            if shared.scale != tran.scale {
+                self.send_scale(shared);
+            }
+        }
+    }
+
+    pub(in super::super) fn send_inside_outside(&self, state: &HeadState) {
+        if state.in_compositor_space {
+            self.client.event(Inside { self_id: self.id });
+            self.send_position(state);
+            self.send_size(state);
+            self.send_transform(state);
+            self.send_scale(state);
+        } else {
+            self.client.event(Outside { self_id: self.id });
+        }
+    }
+
+    pub(in super::super) fn send_enabled(&self, state: &HeadState) {
+        if state.connector_enabled {
+            self.client.event(Enabled { self_id: self.id });
+        } else {
+            self.client.event(Disabled { self_id: self.id });
+        }
+    }
+
+    pub(in super::super) fn send_position(&self, state: &HeadState) {
+        self.client.event(Position {
+            self_id: self.id,
+            x: state.position.0,
+            y: state.position.1,
+        });
+    }
+
+    pub(in super::super) fn send_size(&self, state: &HeadState) {
+        self.client.event(Size {
+            self_id: self.id,
+            width: state.size.0,
+            height: state.size.1,
+        });
+    }
+
+    pub(in super::super) fn send_transform(&self, state: &HeadState) {
+        self.client.event(Transform {
+            self_id: self.id,
+            transform: state.transform.to_wl() as _,
+        });
+    }
+
+    pub(in super::super) fn send_scale(&self, state: &HeadState) {
+        self.client.event(Scaling {
+            self_id: self.id,
+            scaling: state.scale.to_wl(),
+        });
+    }
+}
+
+impl JayHeadManagerExtCompositorSpaceInfoV1RequestHandler for MgrName {
+    type Error = ErrorName;
+
+    mgr_common_req!();
+}
+
+impl JayHeadExtCompositorSpaceInfoV1RequestHandler for HeadName {
+    type Error = ErrorName;
+
+    head_common_req!();
+}
+
+error!();

src/ifs/head_management/jay_head_manager_session_v1.rs

@@ -374,7 +374,13 @@ impl JayHeadManagerSessionV1RequestHandler for JayHeadManagerSessionV1 {
         }
         bitflags! {
             ToSend: u32;
-            CORE_INFO = 1 << 0,
+            CORE_INFO                       = 1 << 0,
+            COMPOSITOR_SPACE_INFO_FULL      = 1 << 1,
+            COMPOSITOR_SPACE_INFO_POS       = 1 << 2,
+            COMPOSITOR_SPACE_INFO_SIZE      = 1 << 3,
+            COMPOSITOR_SPACE_INFO_TRANSFORM = 1 << 4,
+            COMPOSITOR_SPACE_INFO_SCALE     = 1 << 5,
+            COMPOSITOR_SPACE_INFO_ENABLED   = 1 << 13,
         }
         for head in self.heads.lock().values() {
             let pending = mem::take(&mut *head.common.pending.borrow_mut());
@@ -392,6 +398,27 @@ impl JayHeadManagerSessionV1RequestHandler for JayHeadManagerSessionV1 {
             {
                 i.send_wl_output(state);
             }
+            if let Some(i) = &head.ext.compositor_space_info_v1 {
+                if to_send.contains(COMPOSITOR_SPACE_INFO_ENABLED) {
+                    i.send_enabled(state);
+                }
+                if to_send.contains(COMPOSITOR_SPACE_INFO_FULL) {
+                    i.send_inside_outside(state);
+                } else {
+                    if to_send.contains(COMPOSITOR_SPACE_INFO_POS) {
+                        i.send_position(state);
+                    }
+                    if to_send.contains(COMPOSITOR_SPACE_INFO_SIZE) {
+                        i.send_size(state);
+                    }
+                    if to_send.contains(COMPOSITOR_SPACE_INFO_TRANSFORM) {
+                        i.send_transform(state);
+                    }
+                    if to_send.contains(COMPOSITOR_SPACE_INFO_SCALE) {
+                        i.send_scale(state);
+                    }
+                }
+            }
         }
         slf.schedule_transaction_result(req.result, None)?;
         Ok(())