Commit f11f5e02 authored by Duggan, John's avatar Duggan, John
Browse files

Allow multiple connections to a single Trame binding

parent 50c97f7f

pyproject.toml

+1 −1
Original line number Diff line number Diff line 
[tool.poetry]

name = "nova-mvvm"

version = "0.11.1"

version = "0.12.0"

description = "A Python Package for Model-View-ViewModel pattern"

authors = ["Yakubov, Sergey <yakubovs@ornl.gov>"]

readme = "README.md"

src/nova/mvvm/trame_binding/binding.py

+13 −6
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ 
import asyncio

import inspect

import json

from typing import Any, Callable, Optional, Union, cast

from typing import Any, Callable, List, Optional, Union, cast



from pydantic import BaseModel, ValidationError

from trame_server.state import State
@@ -50,7 +50,7 @@ class TrameCommunicator(Communicator): 
        self.viewmodel_linked_object = viewmodel_linked_object

        self._set_linked_object_attributes(linked_object_attributes, viewmodel_linked_object)

        self.viewmodel_callback_after_update = callback_after_update

        self.connection: Union[CallBackConnection, StateConnection]

        self.connections: List[Union[CallBackConnection, StateConnection]] = []



    def _set_linked_object_attributes(

        self, linked_object_attributes: LinkedObjectAttributesType, viewmodel_linked_object: LinkedObjectType
@@ -70,18 +70,25 @@ class TrameCommunicator(Communicator): 
    @override

    def connect(self, connector: Any = None) -> ConnectCallbackType:

        if is_callable(connector):

            self.connection = CallBackConnection(self, connector)

            new_connection = CallBackConnection(self, connector)

        else:

            connector = str(connector) if connector else None

            if connector:

                check_binding(self.viewmodel_linked_object, connector)

                bindings_map[connector] = self

            self.connection = StateConnection(self, connector)

        return self.connection.get_callback()

            new_connection = StateConnection(self, connector)

        

        self.connections.append(new_connection)



        return new_connection.get_callback()



    @override

    def update_in_view(self, value: Any) -> None:

        self.connection.update_in_view(value)

        if not self.connections:

            raise ValueError("You must call connect on this binding before calling update_in_view.")



        for connection in self.connections:

            connection.update_in_view(value)





class CallBackConnection: