feat(xref): row-level context menu actions and unified split-button toolbar

Right-click actions bound to the row under the cursor, split-button toolbar groups with shared borders and hover states, and a notice when an operation needs a selection first.

src/app/mod.rs

@@ -712,6 +712,8 @@ pub(super) struct OpenCADStudio {
     /// with the last pointer position. Mirrors the Layers Name-column drag.
     pub(crate) xref_col_drag: Option<usize>,
     pub(crate) xref_col_last: Option<iced::Point>,
+    /// Table/lower-pane split divider drag in progress.
+    pub(crate) xref_split_drag: bool,
     /// Docked Insert Block panel state (search, preview size, cached thumbnails).
     pub(crate) block_palette: crate::ui::window::block_palette::BlockPalette,
     /// Reference Manager palette state (display-only in Task 7).
@@ -2369,6 +2371,12 @@ pub enum Message {
     XrefColMove(iced::Point),
     /// Pointer released during a column drag.
     XrefColRelease,
+    /// Start a table/lower-pane split divider drag.
+    XrefSplitGrab,
+    /// Pointer moved (panel space) during a split drag.
+    XrefSplitMove(iced::Point),
+    /// Pointer released during a split drag.
+    XrefSplitRelease,
     /// Flip the palette's details/preview lower pane.
     XrefManagerTogglePreview,
     /// Toggle the Attach dropdown menu.
@@ -2389,10 +2397,9 @@ pub enum Message {
     XrefManagerToggleExpand(u64),
     /// Selection-scoped palette operation (detach/unload/reload/overlay/pathtype).
     XrefManagerOp(crate::ui::window::xref_manager::XrefPaletteOp),
-    /// Details-pane "new path" draft text.
-    XrefManagerPathInput(String),
-    /// Apply the "new path" draft to the anchor entry.
-    XrefManagerPathApply,
+    /// Row-scoped palette operation: selects row `index`, then applies the
+    /// operation to it.
+    XrefRowOp(usize, crate::ui::window::xref_manager::XrefPaletteOp),
     /// Prefill the command line for Find & Replace across references
     /// (`XREF Path Find <old> <new>`); the CLI parses and runs it.
     XrefFindReplacePrompt,
@@ -3772,6 +3779,7 @@ impl OpenCADStudio {
             dock_drag_target: None,
             xref_col_drag: None,
             xref_col_last: None,
+            xref_split_drag: false,
             show_file_tabs: true,
             show_layout_tabs: true,
             last_point: None,

src/app/update/dialog.rs

@@ -686,6 +686,7 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
                 self.dock_drag_target = None;
                 self.xref_col_drag = None;
                 self.xref_col_last = None;
+                self.xref_split_drag = false;
                 iced::Task::none()
             }
         }
@@ -908,6 +909,8 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
                 .collect()
         };
         if picked.is_empty() {
+            self.command_line
+                .push_info(crate::t!("Select a reference first.").as_ref());
             return;
         }
         let needs_host = matches!(
@@ -1241,43 +1244,6 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
         self.post_ref_op(i);
         self.refresh_xref_manager();
     }
-
-    /// Apply the details-pane path draft to the anchor entry (verbatim
-    /// store, same engine fn as `XREF Path`).
-    pub(crate) fn xref_manager_path_apply(&mut self) {
-        if cfg!(target_arch = "wasm32") {
-            self.command_line.push_error(crate::t!("Reference changes are not available on web — the reference list is read-only.").as_ref());
-            return;
-        }
-        let i = self.active_tab;
-        let anchor = self.xref_manager.anchor.and_then(|a| {
-            self.xref_manager
-                .entries
-                .get(a)
-                .filter(|_| !self.xref_manager.nested.contains(&a))
-                .map(|e| (e.key, e.name.clone()))
-        });
-        let Some((key, _)) = anchor else {
-            return;
-        };
-        let new_raw = self.xref_manager.path_input.clone();
-        if new_raw.is_empty() {
-            return;
-        }
-        self.push_undo_snapshot(i, "XREF-PATH");
-        match crate::io::xref::set_ref_path(&mut self.tabs[i].scene.document, key, &new_raw)
-        {
-            Ok(name) => {
-                self.command_line.push_output(crate::tf!(
-                    "XREF: Path set for \"{}\" — Reload to apply.",
-                    name
-                ).as_ref());
-                self.post_ref_op(i);
-            }
-            Err(msg) => self.command_line.push_error(msg.as_str()),
-        }
-        self.refresh_xref_manager();
-    }
 }
 
 #[cfg(test)]

src/app/update/mod.rs

@@ -2192,6 +2192,25 @@ impl OpenCADStudio {
                 self.xref_col_last = None;
                 Task::none()
             }
+            Message::XrefSplitGrab => {
+                self.xref_split_drag = true;
+                self.xref_col_last = None;
+                Task::none()
+            }
+            Message::XrefSplitMove(p) => {
+                if self.xref_split_drag {
+                    if let Some(last) = self.xref_col_last {
+                        self.xref_manager.drag_table_by(p.y - last.y);
+                    }
+                    self.xref_col_last = Some(p);
+                }
+                Task::none()
+            }
+            Message::XrefSplitRelease => {
+                self.xref_split_drag = false;
+                self.xref_col_last = None;
+                Task::none()
+            }
             Message::XrefManagerTogglePreview => {
                 self.xref_manager.show_preview ^= true;
                 Task::none()
@@ -2284,12 +2303,10 @@ impl OpenCADStudio {
                 self.xref_manager_op(op);
                 Task::none()
             }
-            Message::XrefManagerPathInput(text) => {
-                self.xref_manager.path_input = text;
-                Task::none()
-            }
-            Message::XrefManagerPathApply => {
-                self.xref_manager_path_apply();
+            Message::XrefRowOp(index, op) => {
+                // Row-scoped op: select the row first, then run the op.
+                self.xref_manager.right_click_select(index);
+                self.xref_manager_op(op);
                 Task::none()
             }
             Message::XrefFindReplacePrompt => {

src/app/view/mod.rs

@@ -1875,7 +1875,8 @@ bg={bg_ms:.1}ms n={view_count}"
         let workspace: Element<'_, Message> = row(parts).width(Fill).height(Fill).into();
 
         let any_dragging = self.dock_dragging.is_some();
-        let any_resizing = self.dock_resizing.is_some() || self.xref_col_drag.is_some();
+        let any_resizing =
+            self.dock_resizing.is_some() || self.xref_col_drag.is_some() || self.xref_split_drag;
         let workspace = if any_dragging {
             let id = self.dock_dragging.expect("guarded by any_dragging");
             let side = self.dock_drag_target.map(|(s, _)| s).unwrap_or(