library: Port Actions demo to Python

Author: rolandlo

src/Library/demos/Actions/main.py

@@ -0,0 +1,70 @@
+import gi
+
+gi.require_version("Gtk", "4.0")
+gi.require_version("Adw", "1")
+from gi.repository import Gtk, Adw, GLib, Gio
+import workbench
+
+demo: Adw.StatusPage = workbench.builder.get_object("demo")
+
+demo_group = Gio.SimpleActionGroup()
+demo.insert_action_group("demo", demo_group)
+
+# Action with no state or parameters
+simple_action = Gio.SimpleAction(
+  name = "simple"
+)
+
+simple_action.connect("activate",
+  lambda action, _ : print(f"{action.get_name()} action activated")
+)
+
+demo_group.add_action(simple_action)
+
+# Action with parameter
+bookmarks_action = Gio.SimpleAction(
+  name = "open-bookmarks",
+  parameter_type = GLib.VariantType("s"),
+)
+
+bookmarks_action.connect("activate",
+  lambda action, parameter : print(f"{action.get_name()} activated with {parameter.unpack()}")
+)
+
+demo_group.add_action(bookmarks_action)
+
+# Action with state
+toggle_action = Gio.SimpleAction(
+  name = "toggle",
+  # Boolean actions dont need parameters for activation
+  state = GLib.Variant.new_boolean(False),
+)
+
+toggle_action.connect("notify::state",
+  lambda action, _ : print(f"{action.get_name()} action set to {action.get_state().unpack()}")
+)
+
+demo_group.add_action(toggle_action)
+
+# Action with state and parameter
+scale_action = Gio.SimpleAction(
+  name = "scale",
+  state = GLib.Variant.new_string("100%"),
+  parameter_type = GLib.VariantType("s"),
+)
+
+scale_action.connect("notify::state",
+  lambda action, _ : print(f"{action.get_name()} action set to {action.get_state().unpack()}")
+)
+
+demo_group.add_action(scale_action)
+
+text : Gtk.Label = workbench.builder.get_object("text")
+
+alignment_action = Gio.PropertyAction(
+  name = "text-align",
+  object = text,
+  property_name = "halign",
+)
+
+demo_group.add_action(alignment_action)