Merge PR #1599 from yztink/fix/novel-layer-gui-refresh: refresh ribbon and layer panel when entities register novel layers

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/command_driver/entity_commit.rs

@@ -200,6 +200,7 @@ impl OpenCADStudio {
     pub(super) fn handle_commit_and_exit(
         &mut self,
         entity: codec::EntityType,
+        preserve_commit_layer: bool,
     ) -> Option<Task<Message>> {
         let i = self.active_tab;
         // XATTACH: the definition and its INSERT are created together
@@ -255,7 +256,11 @@ impl OpenCADStudio {
         );
         let association_enabled =
             self.tabs[i].scene.document.header.dimension_associativity == 2;
-        let committed = self.commit_entity_handle(entity);
+        let committed = if preserve_commit_layer {
+            self.commit_entity_handle_preserve_layer(entity)
+        } else {
+            self.commit_entity_handle(entity)
+        };
         if is_associative_dimension && association_enabled {
             if let Some(handle) = committed {
                 let sources = self.infer_dimension_sources_guarded(i, handle);

src/app/command_driver/mod.rs

@@ -507,7 +507,7 @@ impl OpenCADStudio {
                 self.handle_copy_to_clipboard(handles, base);
             }
             CmdResult::CommitAndExit(entity) => {
-                if let Some(task) = self.handle_commit_and_exit(entity) {
+                if let Some(task) = self.handle_commit_and_exit(entity, preserve_commit_layer) {
                     return task;
                 }
             }

src/app/plugin_host.rs

@@ -350,6 +350,11 @@ impl<'a> HostSession<'a> {
             return handle;
         }
         let handle = self.app.tabs[self.tab].scene.add_entity(entity);
+        if self.app.tabs[self.tab].scene.layer_table_dirty {
+            self.app.tabs[self.tab].scene.layer_table_dirty = false;
+            self.app.tabs[self.tab].dirty = true;
+            self.app.refresh_layer_panel();
+        }
         self.publish_document_view();
         handle
     }
@@ -362,6 +367,11 @@ impl<'a> HostSession<'a> {
             let _ = self.normalize_scripted_entity(None, entity);
         }
         let handles = self.app.tabs[self.tab].scene.add_entities(entities);
+        if self.app.tabs[self.tab].scene.layer_table_dirty {
+            self.app.tabs[self.tab].scene.layer_table_dirty = false;
+            self.app.tabs[self.tab].dirty = true;
+            self.app.refresh_layer_panel();
+        }
         self.publish_document_view();
         handles
     }
@@ -381,6 +391,11 @@ impl<'a> HostSession<'a> {
             EntityType::AttributeEntity(attribute) => self.replace_nested_attribute(attribute),
             entity => self.app.tabs[self.tab].scene.update_entity(entity),
         };
+        if self.app.tabs[self.tab].scene.layer_table_dirty {
+            self.app.tabs[self.tab].scene.layer_table_dirty = false;
+            self.app.tabs[self.tab].dirty = true;
+            self.app.refresh_layer_panel();
+        }
         if ok {
             self.publish_document_view();
         }
@@ -439,6 +454,11 @@ impl<'a> HostSession<'a> {
             };
             assert!(updated);
         }
+        if self.app.tabs[self.tab].scene.layer_table_dirty {
+            self.app.tabs[self.tab].scene.layer_table_dirty = false;
+            self.app.tabs[self.tab].dirty = true;
+            self.app.refresh_layer_panel();
+        }
         self.set_dirty();
         self.publish_document_view();
         Ok(())
@@ -9697,6 +9717,44 @@ step('undo_move', lambda: M.move([u], (0, 0, 0), (7, 0, 0)))
         assert!(!host.modify_layer(non_existent));
     }
 
+    #[test]
+    fn test_entity_creation_with_novel_layer_refreshes_gui() {
+        let mut app = OpenCADStudio::new_for_test();
+        app.tabs[0].is_start = false;
+
+        // Verify COGO_LINES does not exist initially
+        assert!(!app.tabs[0].scene.document.layers.contains("COGO_LINES"));
+        assert!(!app.ribbon.layer_names.contains(&"COGO_LINES".to_string()));
+
+        // 1. Add entity via HostSession (simulating plugin add_entity / add_line)
+        {
+            let mut host = HostSession::new(&mut app, 0);
+            let mut line = codec::entities::Line::from_coords(0.0, 0.0, 0.0, 10.0, 10.0, 0.0);
+            line.common.layer = "COGO_LINES".to_string();
+            let handle = host.add_entity(codec::EntityType::Line(line));
+            assert_ne!(handle, codec::Handle::NULL);
+        }
+
+        // Verify layer is created in document AND refreshed in ribbon + layer panel
+        assert!(app.tabs[0].scene.document.layers.contains("COGO_LINES"));
+        assert!(app.ribbon.layer_names.contains(&"COGO_LINES".to_string()),
+            "Ribbon layers should contain COGO_LINES after add_entity");
+        assert!(app.tabs[0].layers.layers.iter().any(|l| l.name == "COGO_LINES"),
+            "Layer panel should contain COGO_LINES after add_entity");
+
+        // 2. Commit entity via command driver (simulating interactive tool / palette commit)
+        let mut line2 = codec::entities::Line::from_coords(10.0, 10.0, 0.0, 20.0, 20.0, 0.0);
+        line2.common.layer = "SURVEY_TRAVERSE".to_string();
+        let _ = app.commit_entity_handle_preserve_layer(codec::EntityType::Line(line2));
+
+        // Verify SURVEY_TRAVERSE layer is created and refreshed in ribbon + layer panel
+        assert!(app.tabs[0].scene.document.layers.contains("SURVEY_TRAVERSE"));
+        assert!(app.ribbon.layer_names.contains(&"SURVEY_TRAVERSE".to_string()),
+            "Ribbon layers should contain SURVEY_TRAVERSE after commit_entity");
+        assert!(app.tabs[0].layers.layers.iter().any(|l| l.name == "SURVEY_TRAVERSE"),
+            "Layer panel should contain SURVEY_TRAVERSE after commit_entity");
+    }
+
     #[test]
     fn test_plugin_execute_command() {
         let mut app = OpenCADStudio::new_for_test();

src/app/properties.rs

@@ -3491,6 +3491,11 @@ handles={handles_ms:.1} panel={:.1} ribbon={ribbon_ms:.1} tail={:.1} selected={}
         if tracks_dimension_chain {
             self.tabs[i].scene.last_created_dimension = new_handle;
         }
+        if self.tabs[i].scene.layer_table_dirty {
+            self.tabs[i].scene.layer_table_dirty = false;
+            self.tabs[i].dirty = true;
+            self.refresh_layer_panel();
+        }
         new_handle
     }
 }

src/scene/entity.rs

@@ -143,13 +143,17 @@ impl Scene {
     /// layer 0. Auto-registering keeps it on its own layer (#252). Names are
     /// registered verbatim so the writer's (case-insensitive) lookup matches;
     /// the always-present default layer "0" and empty names are no-ops.
-    pub fn ensure_layer(&mut self, name: &str) {
+    pub fn ensure_layer(&mut self, name: &str) -> bool {
-        if name.trim().is_empty() || self.document.layers.contains(name) {
+        let trimmed = name.trim();
-            return;
+        if trimmed.is_empty() || trimmed == "0" || self.document.layers.contains(trimmed) {
+            return false;
         }
-        let mut layer = codec::tables::Layer::new(name);
+        let mut layer = codec::tables::Layer::new(trimmed);
         layer.handle = self.document.allocate_handle();
         let _ = self.document.layers.add(layer);
+        self.invalidate_layer_dependencies(&[trimmed.to_string()]);
+        self.layer_table_dirty = true;
+        true
     }
 
     pub(crate) fn ensure_app_id(&mut self, name: &str) {

src/scene/mod.rs

@@ -2054,6 +2054,9 @@ pub struct Scene {
     pub preview_text: Vec<crate::scene::pipeline::text_gpu::TextVertex>,
     /// Committed-segment wire drawn during multi-point commands (normal colour).
     pub interim_wire: Option<WireModel>,
+    /// Set when an entity creation or update automatically registers a novel
+    /// layer into the document layer table, signalling the UI to refresh.
+    pub layer_table_dirty: bool,
     pub camera_generation: u64,
     /// Incremented whenever geometry-affecting state changes (entities, selection,
     /// preview wires, layer visibility, layout). The GPU pipeline uses this to
@@ -2626,6 +2629,7 @@ impl Scene {
             preview_hatches: Arc::new(Vec::new()),
             preview_text: vec![],
             interim_wire: None,
+            layer_table_dirty: false,
             camera_generation: 0,
             geometry_epoch: GEOMETRY_EPOCH.fetch_add(1, Ordering::Relaxed),
             projection_bounds_epoch: std::cell::Cell::new(0),