Project Manager: Allow to paste Tasks into multiple assets at the same time

openpype/tools/project_manager/project_manager/model.py

@@ -1476,12 +1476,7 @@ def copy_mime_data(self, indexes):
         mimedata.setData("application/copy_task", encoded_data)
         return mimedata
 
-    def paste_mime_data(self, index, mime_data):
-        if not index.isValid():
-            return
-
-        item_id = index.data(IDENTIFIER_ROLE)
-        item = self._items_by_id[item_id]
+    def paste_mime_data(self, item, mime_data):
         if not isinstance(item, (AssetItem, TaskItem)):
             return
 
@@ -1515,6 +1510,25 @@ def paste_mime_data(self, index, mime_data):
             task_item = TaskItem(task_data, True)
             self.add_item(task_item, parent)
 
+    def paste(self, indices, mime_data):
+
+        # Get the selected Assets uniquely
+        items = set()
+        for index in indices:
+            if not index.isValid():
+                return
+            item_id = index.data(IDENTIFIER_ROLE)
+            item = self._items_by_id[item_id]
+
+            # Do not copy into the Task Item so get parent Asset instead
+            if isinstance(item, TaskItem):
+                item = item.parent()
+
+            items.add(item)
+
+        for item in items:
+            self.paste_mime_data(item, mime_data)
+
 
 class BaseItem:
     """Base item for HierarchyModel.

openpype/tools/project_manager/project_manager/view.py

@@ -365,20 +365,24 @@ def keyPressEvent(self, event):
             event.accept()
 
     def _copy_items(self, indexes=None):
+        clipboard = QtWidgets.QApplication.clipboard()
         try:
             if indexes is None:
                 indexes = self.selectedIndexes()
             mime_data = self._source_model.copy_mime_data(indexes)
 
-            QtWidgets.QApplication.clipboard().setMimeData(mime_data)
+            clipboard.setMimeData(mime_data)
             self._show_message("Tasks copied")
         except ValueError as exc:
+            # Change clipboard to contain empty data
+            empty_mime_data = QtCore.QMimeData()
+            clipboard.setMimeData(empty_mime_data)
             self._show_message(str(exc))
 
     def _paste_items(self):
-        index = self.currentIndex()
         mime_data = QtWidgets.QApplication.clipboard().mimeData()
-        self._source_model.paste_mime_data(index, mime_data)
+        rows = self.selectionModel().selectedRows()
+        self._source_model.paste(rows, mime_data)
 
     def _delete_items(self, indexes=None):
         if indexes is None: