WIP: List item factory syntax

blueprintcompiler/language/gtk_list_item_factory.py

@@ -0,0 +1,87 @@
+# gtk_list_item_factory.py
+#
+# Copyright 2022 James Westman <james@jwestman.net>
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+from .types import ClassName
+from .gobject_object import ObjectContent
+from .common import *
+
+class ListItemFactoryContent(AstNode):
+    grammar = ObjectContent
+
+    @property
+    def gir_class(self):
+        return self.root.gir.namespaces["Gtk"].lookup_type("Gtk.ListItem")
+
+    def emit_xml(self, xml: XmlEmitter):
+        self.children[ObjectContent][0].emit_xml(xml)
+
+
+class ListItemFactory(AstNode, Scope):
+    grammar = [
+        "list_item_factory",
+        "(",
+        ClassName,
+        ")",
+        Optional(UseIdent("id")),
+        ListItemFactoryContent,
+    ]
+
+    @property
+    def variables(self) -> T.Dict[str, ScopeVariable]:
+        def emit_xml(xml: XmlEmitter, id: str):
+            xml.start_tag("constant")
+            xml.put_text(id)
+            xml.end_tag()
+
+        def emit_item_xml(xml: XmlEmitter):
+            xml.start_tag("lookup", name="item")
+            xml.put_text("GtkListItem")
+            xml.end_tag()
+
+        return {
+            **{
+                obj.tokens["id"]: ScopeVariable(obj.tokens["id"], obj.gir_class, lambda xml: emit_xml(xml, obj.tokens["id"]))
+                for obj in self.iterate_children_recursive()
+                if obj.tokens["id"] is not None
+            },
+            "item": ScopeVariable("item", self.gir_class, emit_item_xml),
+        }
+
+    @property
+    def gir_class(self):
+        return self.root.gir.namespaces["Gtk"].lookup_type("Gtk.ListItemFactory")
+
+    @property
+    def item_type(self):
+        return self.children[ClassName][0].gir_type
+
+    def emit_xml(self, xml: XmlEmitter):
+        sub = XmlEmitter()
+        sub.start_tag("interface")
+        sub.put_self_closing("requires", lib="gtk", version="4.0")
+        sub.start_tag("template", **{"class": "GtkListItem"})
+        self.children[ListItemFactoryContent][0].emit_xml(sub)
+        sub.end_tag()
+        sub.end_tag()
+
+        xml.start_tag("object", **{"class": "GtkBuilderListItemFactory"}, id=self.tokens["id"])
+        xml.start_tag("property", name="bytes")
+        xml.put_cdata("\n" + sub.result)
+        xml.end_tag()
+        xml.end_tag()