Core interface contracts used across the Dreamine MVVM framework.

This package defines the minimal set of abstractions required by the Dreamine MVVM ecosystem.
It allows different modules (Locators, Behaviors, Navigation, Events, etc.) to interact without direct dependencies.

Purpose

Dreamine.MVVM.Interfaces provides shared contracts that enable loose coupling between the modules of the Dreamine MVVM architecture.

Instead of referencing concrete implementations, higher-level components depend only on these interfaces.

This ensures:

low coupling
clear architectural boundaries
easier testing
replaceable infrastructure components

Main Interfaces

IViewModelResolver

Responsible for resolving ViewModel instances.

Typical usage:

var viewModel = resolver.Resolve(typeof(MainViewModel));

Used by:

ViewModel Locator
Dependency Injection bridges
Navigation systems

INavigator

Defines a minimal navigation contract.

Typical usage:

navigator.Navigate(viewModel);

Responsibilities:

View resolution from ViewModel
navigation between views
UI container updates

Common implementations:

ContentControlNavigator
RegionNavigator

IEventBase

Base abstraction for event messaging systems.

Allows modules to publish or subscribe to application events without tight coupling.

Typical scenarios:

cross-module communication
UI event broadcasting
background task notifications

Why This Package Exists

Large MVVM systems often fail because modules depend directly on each other.

This package solves that problem by introducing shared contracts only.

Architecture principle:

High-level modules depend on abstractions.

Low-level modules implement those abstractions.

This follows the Dependency Inversion Principle (SOLID).

Package Role in Dreamine MVVM

Dreamine.MVVM.Interfaces
        ↑
Dreamine.MVVM.Locators
Dreamine.MVVM.Navigation
Dreamine.MVVM.Events
Dreamine.MVVM.Behaviors

All higher-level packages rely on these interfaces.

Installation

dotnet add package Dreamine.MVVM.Interfaces

Or add to your project file:

Requirements

.NET 8.0
No UI dependencies

License

MIT License