_CommandPlugins emits added and removed signals

src/mcedit2/plugins/__init__.py

@@ -257,6 +257,7 @@ _currentPluginPathname = None
 
 def _registerClass(cls):
     _pluginClassesByPathname[_currentPluginPathname].append(cls)
+    log.info("Registered class %s of plugin %s", cls, _currentPluginPathname)
 
 
 def _unregisterClass(cls):
@@ -265,6 +266,7 @@ def _unregisterClass(cls):
     generate.unregisterGeneratePlugin(cls)
     inspector.unregisterBlockInspectorWidget(cls)
     entities.unregisterTileEntityRefClass(cls)
+    command.unregisterPluginCommand(cls)
 
 # --- Registration functions ---
 

src/mcedit2/plugins/command.py

@@ -66,9 +66,16 @@ def registerPluginCommand(cls):
         _registeredCommands.append(cls)
     else:
         raise ValueError("Class %s must inherit from PluginCommand" % cls)
+
+    _CommandPlugins.instance.pluginAdded.emit(cls)
     return cls
 
 
+def unregisterPluginCommand(cls):
+    if issubclass(cls, PluginCommand):
+        _CommandPlugins.instance.pluginRemoved.emit(cls)
+
+
 class PluginsMenu(QtGui.QMenu):
     def __init__(self, editorSession):
         super(PluginsMenu, self).__init__()