drag and drop of service_items works

src/ui/widgets/draggable/mod.rs

@@ -0,0 +1,42 @@
+use cosmic::iced::Point;
+
+pub use self::column::column;
+pub use self::row::row;
+pub mod column;
+pub mod row;
+
+#[derive(Debug, Clone)]
+pub enum Action {
+    Idle,
+    Picking {
+        index: usize,
+        origin: Point,
+    },
+    Dragging {
+        index: usize,
+        origin: Point,
+        last_cursor: Point,
+    },
+}
+
+#[derive(Debug, Clone, Copy)]
+pub enum DropPosition {
+    Before,
+    Swap,
+    After,
+}
+
+#[derive(Debug, Clone)]
+pub enum DragEvent {
+    Picked {
+        index: usize,
+    },
+    Dropped {
+        index: usize,
+        target_index: usize,
+        drop_position: DropPosition,
+    },
+    Canceled {
+        index: usize,
+    },
+}