widget: Add all actions to top level widget

Shortcuts would not work if menu bar is not visible.

Author: ales-erjavec

orangewidget/widget.py

@@ -355,6 +355,7 @@ def __new__(cls, *args, captionTitle=None, **kwargs):
         self.__statusbar_action = None  # type: Optional[QAction]
         self.__menubar_action = None
         self.__menubar_visible_timer = None
+        self.__toggle_control_area_action = None
 
         # this action is enabled by the canvas framework
         self.__help_action = QAction(
@@ -402,8 +403,6 @@ def __new__(cls, *args, captionTitle=None, **kwargs):
             self.__visual_settings_action.setEnabled(True)
             self.__visual_settings_action.setVisible(True)
 
-        self.addAction(self.__help_action)
-
         self.__copy_action = QAction(
             "Copy to Clipboard", self, objectName="action-copy-to-clipboard",
             shortcut=QKeySequence.Copy, enabled=False, visible=False
@@ -530,7 +529,7 @@ def __new__(cls, *args, captionTitle=None, **kwargs):
         helpaction.menu().addAction(self.__quick_help_action)
 
         if self.__splitter is not None and self.__splitter.count() > 1:
-            action = QAction(
+            self.__toggle_control_area_action = action = QAction(
                 "Show Control Area", self,
                 objectName="action-show-control-area",
                 shortcut=QKeySequence("Ctrl+Shift+D"),
@@ -545,6 +544,21 @@ def __new__(cls, *args, captionTitle=None, **kwargs):
         if self.__menubar_action is not None:
             viewaction.menu().addAction(self.__menubar_action)
 
+        actions = (
+            self.__help_action,
+            self.__report_action,
+            self.__save_image_action,
+            self.__reset_action,
+            self.__visual_settings_action,
+            self.__copy_action,
+            self.__minimize_action,
+            self.__close_action,
+            self.__menubar_action,
+            self.__quick_help_action,
+            self.__toggle_control_area_action
+        )
+        self.addActions(list(filter(None, actions)))
+
         if self.controlArea is not None:
             # Otherwise, the first control has focus
             self.controlArea.setFocus(Qt.OtherFocusReason)