Update iced/libcosmic

src/widgets/workspace_bar.rs

@@ -5,9 +5,10 @@ use cosmic::iced::{
     advanced::{
         layout::{self, flex::Axis},
         mouse, renderer,
-        widget::{Operation, OperationOutputWrapper, Tree},
+        widget::{Operation, Tree},
         Clipboard, Layout, Shell, Widget,
     },
+    core::clipboard::DndDestinationRectangles,
     event::{self, Event},
     Length, Point, Rectangle, Size,
 };
@@ -122,7 +123,7 @@ impl<'a, Msg> Widget<Msg, cosmic::Theme, cosmic::Renderer> for WorkspaceBar<'a,
         tree: &mut Tree,
         layout: Layout<'_>,
         renderer: &cosmic::Renderer,
-        operation: &mut dyn Operation<OperationOutputWrapper<Msg>>,
+        operation: &mut dyn Operation<()>,
     ) {
         operation.container(None, layout.bounds(), &mut |operation| {
             self.children
@@ -219,6 +220,24 @@ impl<'a, Msg> Widget<Msg, cosmic::Theme, cosmic::Renderer> for WorkspaceBar<'a,
     fn diff(&mut self, tree: &mut Tree) {
         tree.diff_children(&mut self.children);
     }
+
+    fn drag_destinations(
+        &self,
+        state: &Tree,
+        layout: Layout<'_>,
+        renderer: &cosmic::Renderer,
+        dnd_rectangles: &mut DndDestinationRectangles,
+    ) {
+        for ((e, layout), state) in self
+            .children
+            .iter()
+            .zip(layout.children())
+            .zip(state.children.iter())
+        {
+            e.as_widget()
+                .drag_destinations(state, layout, renderer, dnd_rectangles);
+        }
+    }
 }
 
 impl<'a, Msg: 'static> From<WorkspaceBar<'a, Msg>> for cosmic::Element<'a, Msg> {