Avalonia/src/Perspex.Base/IObservablePropertyBag.cs







namespace Perspex
{
    using System;

    /// <summary>
    /// Interface for getting/setting <see cref="PerspexProperty"/> bindings on an object.
    /// </summary>
    public interface IObservablePropertyBag : IPropertyBag
    {
        /// <summary>
        /// Binds a <see cref="PerspexProperty"/> to an observable.
        /// </summary>
        /// <param name="property">The property.</param>
        /// <param name="source">The observable.</param>
        /// <param name="priority">The priority of the binding.</param>
        /// <returns>
        /// A disposable which can be used to terminate the binding.
        /// </returns>
        IDisposable Bind(
            PerspexProperty property,
            IObservable<object> source,
            BindingPriority priority = BindingPriority.LocalValue);

        /// <summary>
        /// Binds a <see cref="PerspexProperty"/> to an observable.
        /// </summary>
        /// <typeparam name="T">The type of the property.</typeparam>
        /// <param name="property">The property.</param>
        /// <param name="source">The observable.</param>
        /// <param name="priority">The priority of the binding.</param>
        /// <returns>
        /// A disposable which can be used to terminate the binding.
        /// </returns>
        IDisposable Bind<T>(
            PerspexProperty<T> property,
            IObservable<T> source,
            BindingPriority priority = BindingPriority.LocalValue);

        /// <summary>
        /// Gets an observable for a <see cref="PerspexProperty"/>.
        /// </summary>
        /// <param name="property">The property.</param>
        /// <returns>An observable.</returns>
        IObservable<object> GetObservable(PerspexProperty property);

        /// <summary>
        /// Gets an observable for a <see cref="PerspexProperty"/>.
        /// </summary>
        /// <typeparam name="T">The type of the property.</typeparam>
        /// <param name="property">The property.</param>
        /// <returns>An observable.</returns>
        IObservable<T> GetObservable<T>(PerspexProperty<T> property);
    }
}