[processing] use active layer in the widget wrapper only for

non-optional parameters otherwise use default value
qgis · Dec 10, 2019 · f37a759 · f37a759
1 parent 89394a0
commit f37a759
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/python/plugins/processing/gui/wrappers.py b/python/plugins/processing/gui/wrappers.py
@@ -936,7 +936,10 @@ def createWidget(self):
             self.context = dataobjects.createContext()
 
             try:
-                self.combo.setLayer(iface.activeLayer())
+                if self.parameterDefinition().flags() & QgsProcessingParameterDefinition.FlagOptional:
+                    self.combo.setLayer(self.parameterDefinition().defaultValue())
+                else:
+                    self.combo.setLayer(iface.activeLayer())
             except:
                 pass