Fixed bugs in workflow step preview (#16445)

Release Notes:

- N/A

crates/workspace/src/item.rs

@@ -373,6 +373,7 @@ pub trait ItemHandle: 'static + Send {
     fn dragged_tab_content(&self, params: TabContentParams, cx: &WindowContext) -> AnyElement;
     fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
     fn project_entry_ids(&self, cx: &AppContext) -> SmallVec<[ProjectEntryId; 3]>;
+    fn project_paths(&self, cx: &AppContext) -> SmallVec<[ProjectPath; 3]>;
     fn project_item_model_ids(&self, cx: &AppContext) -> SmallVec<[EntityId; 3]>;
     fn for_each_project_item(
         &self,
@@ -531,6 +532,16 @@ impl<T: Item> ItemHandle for View<T> {
         result
     }
 
+    fn project_paths(&self, cx: &AppContext) -> SmallVec<[ProjectPath; 3]> {
+        let mut result = SmallVec::new();
+        self.read(cx).for_each_project_item(cx, &mut |_, item| {
+            if let Some(id) = item.project_path(cx) {
+                result.push(id);
+            }
+        });
+        result
+    }
+
     fn project_item_model_ids(&self, cx: &AppContext) -> SmallVec<[EntityId; 3]> {
         let mut result = SmallVec::new();
         self.read(cx).for_each_project_item(cx, &mut |id, _| {

crates/workspace/src/pane.rs

@@ -920,7 +920,22 @@ impl Pane {
         cx: &AppContext,
     ) -> Option<Box<dyn ItemHandle>> {
         self.items.iter().find_map(|item| {
-            if item.is_singleton(cx) && item.project_entry_ids(cx).as_slice() == [entry_id] {
+            if item.is_singleton(cx) && (item.project_entry_ids(cx).as_slice() == [entry_id]) {
+                Some(item.boxed_clone())
+            } else {
+                None
+            }
+        })
+    }
+
+    pub fn item_for_path(
+        &self,
+        project_path: ProjectPath,
+        cx: &AppContext,
+    ) -> Option<Box<dyn ItemHandle>> {
+        self.items.iter().find_map(move |item| {
+            if item.is_singleton(cx) && (item.project_path(cx).as_slice() == [project_path.clone()])
+            {
                 Some(item.boxed_clone())
             } else {
                 None

crates/workspace/src/workspace.rs

@@ -2618,6 +2618,33 @@ impl Workspace {
         open_project_item
     }
 
+    pub fn find_project_item<T>(
+        &self,
+        pane: &View<Pane>,
+        project_item: &Model<T::Item>,
+        cx: &AppContext,
+    ) -> Option<View<T>>
+    where
+        T: ProjectItem,
+    {
+        use project::Item as _;
+        let project_item = project_item.read(cx);
+        let entry_id = project_item.entry_id(cx);
+        let project_path = project_item.project_path(cx);
+
+        let mut item = None;
+        if let Some(entry_id) = entry_id {
+            item = pane.read(cx).item_for_entry(entry_id, cx);
+        }
+        if item.is_none() {
+            if let Some(project_path) = project_path {
+                item = pane.read(cx).item_for_path(project_path, cx);
+            }
+        }
+
+        item.and_then(|item| item.downcast::<T>())
+    }
+
     pub fn is_project_item_open<T>(
         &self,
         pane: &View<Pane>,
@@ -2627,13 +2654,7 @@ impl Workspace {
     where
         T: ProjectItem,
     {
-        use project::Item as _;
-
-        project_item
-            .read(cx)
-            .entry_id(cx)
-            .and_then(|entry_id| pane.read(cx).item_for_entry(entry_id, cx))
-            .and_then(|item| item.downcast::<T>())
+        self.find_project_item::<T>(pane, project_item, cx)
             .is_some()
     }
 
@@ -2648,19 +2669,12 @@ impl Workspace {
     where
         T: ProjectItem,
     {
-        use project::Item as _;
-
-        let entry_id = project_item.read(cx).entry_id(cx);
-        if let Some(item) = entry_id
-            .and_then(|entry_id| pane.read(cx).item_for_entry(entry_id, cx))
-            .and_then(|item| item.downcast())
-        {
+        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
             self.activate_item(&item, activate_pane, focus_item, cx);
             return item;
         }
 
         let item = cx.new_view(|cx| T::for_project_item(self.project().clone(), project_item, cx));
-
         let item_id = item.item_id();
         let mut destination_index = None;
         pane.update(cx, |pane, cx| {