head-management: add jay-tearing-mode-info-v1 extension

src/ifs/head_management/head_management_macros.rs

@@ -405,4 +405,5 @@ declare_extensions! {
     drm_color_space_info_v1: DrmColorSpaceInfoV1,
     non_desktop_override_v1: NonDesktopOverrideV1,
     jay_vrr_mode_info_v1: JayVrrModeInfoV1,
+    jay_tearing_mode_info_v1: JayTearingModeInfoV1,
 }

src/ifs/head_management/jay_head_ext.rs

@@ -7,6 +7,7 @@ pub(super) mod jay_head_ext_connector_info_v1;
 pub(super) mod jay_head_ext_core_info_v1;
 pub(super) mod jay_head_ext_drm_color_space_info_v1;
 pub(super) mod jay_head_ext_format_info_v1;
+pub(super) mod jay_head_ext_jay_tearing_mode_info_v1;
 pub(super) mod jay_head_ext_jay_vrr_mode_info_v1;
 pub(super) mod jay_head_ext_mode_info_v1;
 pub(super) mod jay_head_ext_mode_setter_v1;

src/ifs/head_management/jay_head_ext/jay_head_ext_jay_tearing_mode_info_v1.rs

@@ -0,0 +1,51 @@
+use {
+    crate::{
+        ifs::head_management::HeadState,
+        wire::{
+            jay_head_ext_jay_tearing_mode_info_v1::{
+                JayHeadExtJayTearingModeInfoV1RequestHandler, Mode,
+            },
+            jay_head_manager_ext_jay_tearing_mode_info_v1::JayHeadManagerExtJayTearingModeInfoV1RequestHandler,
+        },
+    },
+    std::rc::Rc,
+};
+
+impl_jay_tearing_mode_info_v1! {
+    version = 1,
+    after_announce = after_announce,
+    after_transaction = after_transaction,
+}
+
+impl HeadName {
+    fn after_announce(&self, shared: &HeadState) {
+        self.send_mode(shared);
+    }
+
+    fn after_transaction(&self, shared: &HeadState, tran: &HeadState) {
+        if shared.tearing_mode != tran.tearing_mode {
+            self.send_mode(shared);
+        }
+    }
+
+    pub(in super::super) fn send_mode(&self, state: &HeadState) {
+        self.client.event(Mode {
+            self_id: self.id,
+            mode: state.tearing_mode.0,
+        });
+    }
+}
+
+impl JayHeadManagerExtJayTearingModeInfoV1RequestHandler for MgrName {
+    type Error = ErrorName;
+
+    mgr_common_req!();
+}
+
+impl JayHeadExtJayTearingModeInfoV1RequestHandler for HeadName {
+    type Error = ErrorName;
+
+    head_common_req!();
+}
+
+error!();