feat(xref): row selection, resizable columns, tree view, and find-replace

Single, multi, and range row selection, resizable table columns, hierarchical tree presentation, and find-and-replace through the command line.

src/app/mod.rs

@@ -708,6 +708,10 @@ pub(super) struct OpenCADStudio {
     pub(crate) dock_drag_last: Option<iced::Point>,
     /// Live drag target (side + index), shown as a highlight while dragging.
     pub(crate) dock_drag_target: Option<(crate::app::config::DockSide, usize)>,
+    /// Reference-table column currently being width-resized (column index),
+    /// 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>,
     /// 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).
@@ -2354,8 +2358,17 @@ pub enum Message {
     XrefManagerRefresh,
     /// Toggle one palette row (entry index) in the multi-selection set.
     XrefManagerSelect(usize),
+    /// Right-click on a palette row: single-select it when outside the
+    /// selection (the context menu then acts on the selection).
+    XrefRowRightClick(usize),
     /// Flip the palette's list/tree presentation.
     XrefManagerToggleTree,
+    /// Start a reference-table column divider drag (column index).
+    XrefColGrab(usize),
+    /// Pointer moved (table header space) during a column drag.
+    XrefColMove(iced::Point),
+    /// Pointer released during a column drag.
+    XrefColRelease,
     /// Flip the palette's details/preview lower pane.
     XrefManagerTogglePreview,
     /// Toggle the Attach dropdown menu.
@@ -2380,11 +2393,9 @@ pub enum Message {
     XrefManagerPathInput(String),
     /// Apply the "new path" draft to the anchor entry.
     XrefManagerPathApply,
-    /// Find & Replace row drafts.
-    XrefManagerFindInput(String),
-    XrefManagerReplaceInput(String),
-    /// Apply Find & Replace across all direct references.
-    XrefManagerFindReplaceApply,
+    /// Prefill the command line for Find & Replace across references
+    /// (`XREF Path Find <old> <new>`); the CLI parses and runs it.
+    XrefFindReplacePrompt,
     LayerToggleVisible(usize),
     LayerToggleLock(usize),
     LayerToggleFreeze(usize),
@@ -3759,6 +3770,8 @@ impl OpenCADStudio {
             dock_resizing: None,
             dock_drag_last: None,
             dock_drag_target: None,
+            xref_col_drag: None,
+            xref_col_last: None,
             show_file_tabs: true,
             show_layout_tabs: true,
             last_point: None,

src/app/update/dialog.rs

@@ -638,6 +638,11 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
                 iced::Task::none()
             }
             DockMsg::DragMove(point) => {
+                // NOTE: xref column drags intentionally do NOT ride this
+                // path: its points live in workspace space while the header
+                // tracker reports header-local points, and mixing the two
+                // produced a one-time jump plus a stuck drag. Column moves
+                // arrive via Message::XrefColMove only.
                 if self.dock_dragging.is_some() {
                     let avail = self.tabs[self.active_tab].scene.selection.borrow().vp_size.1;
                     let side = if point.x < self.win_size.0 * 0.5 {
@@ -679,6 +684,8 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
                 self.dock_resizing = None;
                 self.dock_drag_last = None;
                 self.dock_drag_target = None;
+                self.xref_col_drag = None;
+                self.xref_col_last = None;
                 iced::Task::none()
             }
         }
@@ -1271,37 +1278,6 @@ pub(super) fn on_ribbon_tool_click(&mut self, tool_id: String, event: ModuleEven
         }
         self.refresh_xref_manager();
     }
-
-    /// Apply Find & Replace across all direct references (same engine fn
-    /// as `XREF Path Find`).
-    pub(crate) fn xref_manager_find_replace_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 old = self.xref_manager.find_input.clone();
-        let new = self.xref_manager.replace_input.clone();
-        if old.is_empty() || new.is_empty() {
-            self.command_line
-                .push_error(crate::t!("Usage: XREF Path Find <old> <new>").as_ref());
-            return;
-        }
-        self.push_undo_snapshot(i, "XREF-PATH");
-        let n = crate::io::xref::replace_path_prefix(
-            &mut self.tabs[i].scene.document,
-            &old,
-            &new,
-        );
-        self.command_line.push_output(crate::tf!(
-            "XREF: updated {} reference(s).",
-            n
-        ).as_ref());
-        if n > 0 {
-            self.post_ref_op(i);
-        }
-        self.refresh_xref_manager();
-    }
 }
 
 #[cfg(test)]

src/app/update/mod.rs

@@ -2148,13 +2148,50 @@ impl OpenCADStudio {
                 Task::none()
             }
             Message::XrefManagerSelect(index) => {
-                self.xref_manager.toggle_select(index);
+                use crate::ui::window::xref_manager::SelectExtend;
+                // Normal GUI list behavior off the globally tracked
+                // modifiers (same source as the layer list): plain click
+                // selects one row, Ctrl/Cmd toggles, Shift extends a range.
+                let extend = if self.ctrl_down {
+                    SelectExtend::Toggle
+                } else if self.shift_down {
+                    SelectExtend::Range
+                } else {
+                    SelectExtend::Single
+                };
+                self.xref_manager.click_select(index, extend);
+                Task::none()
+            }
+            Message::XrefRowRightClick(index) => {
+                self.xref_manager.right_click_select(index);
                 Task::none()
             }
             Message::XrefManagerToggleTree => {
                 self.xref_manager.toggle_tree();
                 Task::none()
             }
+            Message::XrefColGrab(i) => {
+                // Start a table-column divider drag; moves arrive via the
+                // header's mouse_area (XrefColMove), like the Layers
+                // Name-column divider rides ModalDragMove.
+                self.xref_col_drag = Some(i);
+                self.xref_col_last = None;
+                Task::none()
+            }
+            Message::XrefColMove(p) => {
+                if let Some(i) = self.xref_col_drag {
+                    if let Some(last) = self.xref_col_last {
+                        self.xref_manager.drag_col_by(i, p.x - last.x);
+                    }
+                    self.xref_col_last = Some(p);
+                }
+                Task::none()
+            }
+            Message::XrefColRelease => {
+                self.xref_col_drag = None;
+                self.xref_col_last = None;
+                Task::none()
+            }
             Message::XrefManagerTogglePreview => {
                 self.xref_manager.show_preview ^= true;
                 Task::none()
@@ -2255,17 +2292,13 @@ impl OpenCADStudio {
                 self.xref_manager_path_apply();
                 Task::none()
             }
-            Message::XrefManagerFindInput(text) => {
-                self.xref_manager.find_input = text;
-                Task::none()
-            }
-            Message::XrefManagerReplaceInput(text) => {
-                self.xref_manager.replace_input = text;
-                Task::none()
-            }
-            Message::XrefManagerFindReplaceApply => {
-                self.xref_manager_find_replace_apply();
-                Task::none()
+            Message::XrefFindReplacePrompt => {
+                // No fields in the panel: prefill the command line so the
+                // existing `XREF Path Find <old> <new>` parsing runs it.
+                self.command_line.input = "XREF Path Find ".to_string();
+                self.command_line.autocomplete_cursor = None;
+                self.command_line.cancel_history_navigation();
+                return self.focus_cmd_input();
             }
 
             Message::LayerStateManagerOpen => {

src/app/view/mod.rs

@@ -1875,7 +1875,7 @@ 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();
+        let any_resizing = self.dock_resizing.is_some() || self.xref_col_drag.is_some();
         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(