import gom

DIALOG4 = gom.script.sys.create_user_defined_dialog(dialog={
    "content": [
        [
            {
                "columns": 1,
                "name": "label_6",
                "rows": 1,
                "text": {
                    "id": "",
                    "text": "New",
                    "translatable": True
                },
                "tooltip": {
                    "id": "",
                    "text": "",
                    "translatable": True
                },
                "type": "label",
                "word_wrap": False
            },
            {
                "columns": 1,
                "fast_filter": False,
                "name": "input_new",
                "rows": 1,
                "supplier": "custom",
                "tooltip": {
                    "id": "",
                    "text": "",
                    "translatable": True
                },
                "type": "input::point3d"
            }
        ]
    ],
    "control": {
        "id": "OkCancel"
    },
    "embedding": "",
    "position": "",
    "size": {
        "height": 112,
        "width": 200
    },
    "sizemode": "",
    "style": "",
    "title": {
        "id": "",
        "text": "Demo \"New selection element\"",
        "translatable": True
    }
})


def dialog_event_handler(widget):
    pass


# filter system planes
def element_filter(element):
    try:
        if element.type == 'plane':
            return True
    except Exception as e:
        pass
    return False


DIALOG4.handler = dialog_event_handler
DIALOG4.input_new.filter = element_filter

# Alternative: use fast filtering
# from typing import Iterable
#
# def fast_element_filter(*elements) -> Iterable[bool]:
#     return [element_filter(e) for e in elements]
#
# DIALOG4.input_new.fast_filter = True
# DIALOG4.input_new.filter = fast_element_filter

RESULT = gom.script.sys.show_user_defined_dialog(dialog=DIALOG4)

print("Chosen system plane:", RESULT.input_new.name)