Add workflow-inspector with saved filed view

pyproject.toml

@@ -36,12 +36,15 @@ dependencies = [
     "numpy",
     "dask",
     "pyyaml",
+    "networkx",  # also a transitive dependency of scikit-image, from napari
 ]
 
 [project.optional-dependencies]
 # Allow easily installation with the full, default napari installation
 # (including Qt backend) using ndev-workflows[all].
 all = ["napari[all]"]
+# Optional visualization dependencies for the workflow inspector graph view
+plot = ["matplotlib"]
 
 [dependency-groups]
 dev = [

src/ndev_workflows/_manager.py

@@ -109,6 +109,26 @@ def undo_redo(self) -> UndoRedoController:
         """The undo/redo controller."""
         return self._undo_redo
 
+    @property
+    def pending_updates(self) -> list[str]:
+        """List of task names pending update (read-only copy)."""
+        return list(self._pending_updates)
+
+    def is_layer_pending(self, name: str) -> bool:
+        """Check if a layer/task is pending update.
+
+        Parameters
+        ----------
+        name : str
+            The task name to check.
+
+        Returns
+        -------
+        bool
+            True if the task is scheduled for update.
+        """
+        return name in self._pending_updates
+
     def update(
         self,
         target_layer: str | Layer,

src/ndev_workflows/_workflow.py

@@ -447,8 +447,8 @@ def __repr__(self) -> str:
         """Return a string representation of the workflow."""
         n_tasks = len(self._tasks)
         roots = self.roots()
-        leafs = self.leaves()
-        return f'Workflow({n_tasks} tasks, roots={roots}, leafs={leafs})'
+        leaves = self.leaves()
+        return f'Workflow({n_tasks} tasks, roots={roots}, leaves={leaves})'
 
     def copy(self) -> Workflow:
         """Create a deep copy of this workflow.

src/ndev_workflows/napari.yaml

@@ -7,6 +7,11 @@ contributions:
     - id: ndev-workflows.workflow_container
       title: Workflow Container
       python_name: ndev_workflows.widgets._workflow_container:WorkflowContainer
+    - id: ndev-workflows.workflow_inspector
+      title: Workflow Inspector
+      python_name: ndev_workflows.widgets._workflow_inspector:WorkflowInspector
   widgets:
     - command: ndev-workflows.workflow_container
       display_name: Workflow Container
+    - command: ndev-workflows.workflow_inspector
+      display_name: Workflow Inspector

src/ndev_workflows/widgets/__init__.py

@@ -0,0 +1,6 @@
+"""ndev-workflows widgets for napari integration."""
+
+from ._workflow_container import WorkflowContainer
+from ._workflow_inspector import WorkflowInspector
+
+__all__ = ['WorkflowContainer', 'WorkflowInspector']