WIP: List item factory syntax

blueprintcompiler/decompiler.py

@@ -260,7 +260,7 @@ def decompile_property(ctx, gir, name, cdata, bind_source=None, bind_property=No
             flags += " inverted"
         if "bidirectional" in bind_flags:
             flags += " bidirectional"
-        ctx.print(f"{name}: bind {bind_source}.{bind_property}{flags};")
+        ctx.print(f"{name}: bind-prop {bind_source}.{bind_property}{flags};")
     elif truthy(translatable):
         if context is not None:
             ctx.print(f"{name}: C_(\"{escape_quote(context)}\", \"{escape_quote(cdata)}\");")

blueprintcompiler/language/__init__.py

@@ -10,6 +10,7 @@ from .gtk_a11y import A11y
 from .gtk_combo_box_text import Items
 from .gtk_file_filter import mime_types, patterns, suffixes
 from .gtk_layout import Layout
+from .gtk_list_item_factory import ListItemFactory
 from .gtk_menu import menu
 from .gtk_size_group import Widgets
 from .gtk_string_list import Strings
@@ -26,6 +27,7 @@ from .common import *
 OBJECT_HOOKS.children = [
     menu,
     Object,
+    ListItemFactory,
 ]
 
 OBJECT_CONTENT_HOOKS.children = [

blueprintcompiler/language/gobject_property.py

@@ -21,6 +21,7 @@
 from .expression import Expr
 from .gobject_object import Object
 from .gtkbuilder_template import Template
+from .gtk_list_item_factory import ListItemFactory
 from .values import Value, TranslatedStringValue
 from .common import *
 
@@ -30,7 +31,7 @@ class Property(AstNode):
         [
             UseIdent("name"),
             ":",
-            Keyword("bind"),
+            Keyword("bind-prop", "bind"),
             UseIdent("bind_source"),
             ".",
             UseIdent("bind_property"),
@@ -46,7 +47,7 @@ class Property(AstNode):
             UseIdent("name"),
             UseLiteral("binding", True),
             ":",
-            "bind",
+            Keyword("bind"),
             Expr,
         ),
         Statement(
@@ -162,6 +163,10 @@ class Property(AstNode):
             xml.start_tag("property", **props)
             self.children[Object][0].emit_xml(xml)
             xml.end_tag()
+        elif len(self.children[ListItemFactory]) == 1:
+            xml.start_tag("property", **props)
+            self.children[ListItemFactory][0].emit_xml(xml)
+            xml.end_tag()
         elif value is None:
             if self.tokens["binding"]:
                 xml.start_tag("binding", **props)

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()

blueprintcompiler/parse_tree.py

@@ -536,13 +536,13 @@ class UseLiteral(ParseNode):
 class Keyword(ParseNode):
     """ Matches the given identifier and sets it as a named token, with the name
     being the identifier itself. """
-    def __init__(self, kw):
+    def __init__(self, kw, token=None):
         self.kw = kw
-        self.set_token = True
+        self.token = token or kw
 
     def _parse(self, ctx: ParseContext):
         token = ctx.next_token()
-        ctx.set_group_val(self.kw, True, token)
+        ctx.set_group_val(self.token, True, token)
         return str(token) == self.kw
 
 

blueprintcompiler/xml_emitter.py

@@ -59,6 +59,10 @@ class XmlEmitter:
         self.result += saxutils.escape(str(text))
         self._needs_newline = False
 
+    def put_cdata(self, text):
+        self.result += f"<![CDATA[{text}]]>"
+        self._needs_newline = False
+
     def _indent(self):
         if self.indent is not None:
             self.result += "\n" + " " * (self.indent * len(self._tag_stack))

tests/samples/binding.blp

@@ -1,9 +1,9 @@
 using Gtk 4.0;
 
 Box {
-  visible: bind box2.visible inverted;
-  orientation: bind box2.orientation;
-  spacing: bind box2.spacing no-sync-create;
+  visible: bind-prop box2.visible inverted;
+  orientation: bind-prop box2.orientation;
+  spacing: bind-prop box2.spacing no-sync-create;
 }
 
 Box box2 {

tests/samples/list_item_factory.blp

@@ -0,0 +1,9 @@
+using Gtk 4.0;
+
+ListView {
+  factory: list_item_factory(CheckButton) {
+    child: Label {
+      label: bind item.group.label;
+    };
+  };
+}

tests/samples/list_item_factory.ui

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <object class="GtkListView">
+    <property name="factory">
+      <object class="GtkBuilderListItemFactory">
+        <property name="bytes"><![CDATA[
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <template class="GtkListItem">
+    <property name="child">
+      <object class="GtkLabel">
+        <binding name="label">
+          <lookup name="label">
+            <lookup name="group">
+              <lookup name="item">GtkListItem</lookup>
+            </lookup>
+          </lookup>
+        </binding>
+      </object>
+    </property>
+  </template>
+</interface>]]></property>
+      </object>
+    </property>
+  </object>
+</interface>

tests/test_samples.py

@@ -145,6 +145,7 @@ class TestSamples(unittest.TestCase):
         self.assert_sample("inline_menu")
         self.assert_sample("lambda")
         self.assert_sample("layout")
+        self.assert_sample("list_item_factory")
         self.assert_sample("menu")
         self.assert_sample("numbers")
         self.assert_sample("object_prop")