sort menu items

raven/plugins/domain/menucontribution.py

@@ -1,11 +1,51 @@
 from raven.plugins.domain.raction import RAction
 from raven.plugins.domain.rmenu import RMenu
 
+id_counter = 0
+
+
+def next_id() -> str:
+    global id_counter
+    id_counter = id_counter + 1
+    return "action_%d" % id_counter
+
 
 class MenuContribution():
-    def __init__(self, menu_id: str, action: RAction = None, menu: RMenu = None, action_id=None):
+    def __init__(self,
+                 menu_id: str,
+                 action: RAction = None,
+                 menu: RMenu = None,
+                 action_id=None,
+                 after=None):
         super(MenuContribution, self).__init__()
         self.menu_id = menu_id
         self.action = action
         self.menu = menu
-        self.action_id = action_id
+        self.action_id = action_id if action_id else next_id()
+        self.after = after
+
+
+def _sort_by_action_id(menu_contributions: [MenuContribution]) -> [MenuContribution]:
+    return sorted(menu_contributions, key=lambda mc: mc.action_id)
+
+
+def sort_menu_contributions(menu_contributions: [MenuContribution]) -> [MenuContribution]:
+    result = []
+    items = _sort_by_action_id(menu_contributions[:])
+
+    _recursive_half_order_adder(result, items, None)
+
+    # add remaining items to the end (ordered by their action_id)
+    # This resolves cycles.
+    for item in items:
+        result.append(item)
+    return result
+
+
+def _recursive_half_order_adder(result: [MenuContribution], items: [MenuContribution], parent):
+    for item in items:
+        mc: MenuContribution = item
+        if not mc.after:
+            result.append(mc)
+            items.remove(mc)
+            _recursive_half_order_adder(result, items, mc.action_id)

raven/plugins/domain/testmenucontribution.py

@@ -0,0 +1,45 @@
+import unittest
+from random import shuffle
+
+from raven.plugins.domain.menucontribution import MenuContribution, sort_menu_contributions
+
+
+class MyTestCase(unittest.TestCase):
+    def test_sort(self):
+        items = [
+            MenuContribution("menuId", action_id="a", after=None),
+            MenuContribution("menuId", action_id="b", after="a"),
+            MenuContribution("menuId", action_id="c", after="a"),
+            MenuContribution("menuId", action_id="d", after="b"),
+            MenuContribution("menuId", action_id="e", after="d"),
+        ]
+        shuffle(items)
+
+        actual = sort_menu_contributions(items)
+        ordered_ids = ""
+        for a in actual:
+            ordered_ids = ordered_ids + a.action_id
+        self.assertEqual("abcde", ordered_ids)
+
+    def test_sort_with_cycle(self):
+        """
+        There is a cycle between a and b. This is resolved, because neither is set in the recursive
+        part of the method. After the recursive part the remaining items are added in order of
+        their action_id.
+        :return:
+        """
+        items = [
+            MenuContribution("menuId", action_id="a", after="b"),
+            MenuContribution("menuId", action_id="b", after="a"),
+        ]
+        shuffle(items)
+
+        actual = sort_menu_contributions(items)
+        ordered_ids = ""
+        for a in actual:
+            ordered_ids = ordered_ids + a.action_id
+        self.assertEqual("ab", ordered_ids)
+
+
+if __name__ == '__main__':
+    unittest.main()

raven/plugins/openfileplugin.py

@@ -15,7 +15,8 @@ from settings import Settings
 class OpenFilePlugin(PluginBase):
     def __init__(self):
         super(OpenFilePlugin, self).__init__()
-        print("init OpenFilePlugin")
+        self.settings = None
+        self.tr = None
 
     def set_settings(self, settings: Settings):
         self.settings = settings
@@ -24,7 +25,7 @@ class OpenFilePlugin(PluginBase):
         self.tr = tr
 
     def _action_open_file(self) -> RAction:
-        open_file = RAction(self.tr("&Open..."), self._open_file_dialog, shortcut='Ctrl+O',
+        open_file = RAction("&Open...", self._open_file_dialog, shortcut='Ctrl+O',
                             icon_from_theme="document-open")
         return open_file
 

raven/plugins/ravenlogplugin.py

@@ -22,8 +22,8 @@ class RavenLogPlugin(PluginBase):
 
     def get_menu_contributions(self) -> [MenuContribution]:
         return [
-            MenuContribution("file", action=self._action_close(), action_id="close application"),
-            MenuContribution("help", action=self._action_about(), action_id="open about dialog"),
+            MenuContribution("file", action=self._action_close(), action_id="close application", after="<last>"),
+            MenuContribution("help", action=self._action_about(), action_id="open about dialog", after="<last>"),
         ]
 
     def current_file(self) -> Optional[str]: