44 lines
1.5 KiB
C#
44 lines
1.5 KiB
C#
#region Apache License 2.0
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/*
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Nuclex Foundation libraries for .NET
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Copyright (C) 2002-2026 Markus Ewald / Nuclex Development Labs
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#endregion // Apache License 2.0
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using System;
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using Nuclex.Avalonia.Commands;
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namespace Nuclex.Avalonia.ViewModels {
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/// <summary>Interface for view models that can switch between different pages</summary>
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/// <typeparam name="TPageEnumeration">
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/// Type by which pages can be indicated (typically an enum)
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/// </typeparam>
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public interface IMultiPageViewModel<TPageEnumeration>
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where TPageEnumeration : struct {
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/// <summary>Command to switch the active tool page</summary>
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IAsyncCommand<TPageEnumeration> SwitchPageCommand { get; }
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/// <summary>The currently displayed page</summary>
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TPageEnumeration? ActivePage { get; }
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/// <summary>View model for the page that is currently being shown</summary>
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object? ActivePageViewModel { get; }
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}
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} // namespace Nuclex.Avalonia.ViewModels
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