Library: Port 'Color Picker' to Python

src/Library/demos/Color Picker/main.py

@@ -0,0 +1,28 @@
+import gi
+
+gi.require_version("Xdp", "1.0")
+gi.require_version("XdpGtk4", "1.0")
+gi.require_version("Gdk", "4.0")
+from gi.repository import Gdk, Gio, Xdp, XdpGtk4
+import workbench
+
+portal = Xdp.Portal()
+parent = XdpGtk4.parent_new_gtk(workbench.window)
+button = workbench.builder.get_object("button")
+
+
+def on_selected(_portal, task):
+    color = Gdk.RGBA()
+
+    color.red, color.green, color.blue = _portal.pick_color_finish(task)
+    color.alpha = 1
+
+    print(f"Selected color is: {color.to_string()}")
+
+
+def on_clicked(_button):
+    # result is a GVariant of the form (ddd), containing red, green and blue components in the range [0,1]
+    portal.pick_color(parent, None, on_selected)
+
+
+button.connect("clicked", on_clicked)