Fix templates in bind-property

blueprintcompiler/outputs/xml/__init__.py

@@ -141,7 +141,16 @@ class XmlOutput(OutputFormat):
             if value.bidirectional:
                 bind_flags.append("bidirectional")
 
-            props["bind-source"] = value.source
+            if (
+                value.source == "template"
+                and value.context[ScopeCtx].template is not None
+            ):
+                props["bind-source"] = value.context[
+                    ScopeCtx
+                ].template.gir_class.glib_type_name
+            else:
+                props["bind-source"] = value.source
+
             props["bind-property"] = value.property_name
             props["bind-flags"] = "|".join(bind_flags) or None
             xml.put_self_closing("property", **props)

tests/samples/template_bind_property.blp

@@ -0,0 +1,5 @@
+using Gtk 4.0;
+
+template $MyTemplate {
+  object: bind-property template.object2;
+}

tests/samples/template_bind_property.ui

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <template class="MyTemplate">
+    <property name="object" bind-source="MyTemplate" bind-property="object2" bind-flags="sync-create"/>
+  </template>
+</interface>

tests/test_samples.py

@@ -177,6 +177,7 @@ class TestSamples(unittest.TestCase):
                 "template",
                 "template_binding",
                 "template_binding_extern",
+                "template_bind_property",
                 "template_id",
                 "template_no_parent",
                 "template_simple_binding",