decompiler: Support action widgets

blueprintcompiler/language/gtkbuilder_child.py

@@ -22,7 +22,7 @@ from functools import cached_property
 
 from .common import *
 from .gobject_object import Object
-from .response_id import ExtResponse
+from .response_id import ExtResponse, decompile_response_type
 
 ALLOWED_PARENTS: T.List[T.Tuple[str, str]] = [
     ("Gtk", "Buildable"),
@@ -127,10 +127,15 @@ class Child(AstNode):
                 )
 
 
-@decompiler("child")
-def decompile_child(ctx, gir, type=None, internal_child=None):
-    if type is not None:
+@decompiler("child", element=True)
+def decompile_child(ctx, gir, element):
+    if type := element["type"]:
+        if type == "action":
+            if decompiled := decompile_response_type(ctx.parent_node, element):
+                ctx.print(decompiled)
+                return
+
         ctx.print(f"[{type}]")
-    elif internal_child is not None:
+    elif internal_child := element["internal-child"]:
         ctx.print(f"[internal-child {internal_child}]")
     return gir

blueprintcompiler/language/response_id.py

@@ -123,3 +123,32 @@ class ExtResponse(AstNode):
 
         object = self.parent_by_type(Child).object
         return object.id
+
+
+def decompile_response_type(parent_element, child_element):
+    obj_id = None
+    for obj in child_element.children:
+        if obj.tag == "object":
+            obj_id = obj["id"]
+            break
+
+    if obj_id is None:
+        return None
+
+    for child in parent_element.children:
+        if child.tag == "action-widgets":
+            for action_widget in child.children:
+                if action_widget.cdata == obj_id:
+                    response_id = action_widget["response"]
+                    is_default = (
+                        " default" if decompile.truthy(action_widget["default"]) else ""
+                    )
+                    return f"[action response={response_id}{is_default}]"
+
+    return None
+
+
+@decompiler("action-widgets", skip_children=True)
+def decompile_action_widgets(ctx, gir):
+    # This is handled in the <child> decompiler and decompile_response_type above
+    pass

tests/test_samples.py

@@ -210,8 +210,6 @@ class TestSamples(unittest.TestCase):
             SKIP_COMPILE = ["translator_comments"]
 
             SKIP_DECOMPILE = [
-                # Not implemented yet
-                "action_widgets",
                 # Comments are not preserved in either direction
                 "comments",
             ]