mirror of
https://github.com/AtomUI/AtomUI.git
synced 2026-10-18 14:37:19 +08:00
chinboy
934 lines
28 KiB
C#
934 lines
28 KiB
C#
using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using System.Windows.Input;
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using AtomUI.Controls;
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using Avalonia;
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using Avalonia.Collections;
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using Avalonia.Controls;
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using Avalonia.Controls.Templates;
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using Avalonia.Headless;
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using Avalonia.Input;
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using Avalonia.Threading;
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using ReactiveUI;
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using ReactiveUI.Avalonia;
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using Shouldly;
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using Xunit;
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using AvaloniaWindow = Avalonia.Controls.Window;
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namespace AtomUI.Desktop.Controls.Tests.NavMenu;
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public class NavMenuNodeCommandTests
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{
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static NavMenuNodeCommandTests()
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{
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AvaloniaTestApp.EnsureInitialized();
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}
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[Fact]
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public void Prepared_Container_Receives_Node_Command_And_Explicit_Parameter()
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{
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var command = new TrackingCommand();
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var parameter = new object();
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var node = new NavMenuNode
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{
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Header = "Command item",
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ItemKey = "command-item",
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Command = command,
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CommandParameter = parameter
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};
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ShowInWindow(node, (_, item) =>
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{
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item.Command.ShouldBeSameAs(command);
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item.CommandParameter.ShouldBeSameAs(parameter);
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});
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}
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[Fact]
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public void Prepared_Container_Preserves_Null_CommandParameter_When_ItemKey_Is_Set()
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{
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var node = new NavMenuNode
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{
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Header = "Command item",
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ItemKey = "command-item",
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Command = new TrackingCommand()
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};
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ShowInWindow(node, (_, item) => item.CommandParameter.ShouldBeNull());
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}
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[Fact]
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public void Realized_Container_Tracks_Node_Command_And_Parameter_Changes()
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{
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var oldCommand = new TrackingCommand();
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var newCommand = new TrackingCommand();
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var oldParameter = new object();
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var newParameter = new object();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = oldCommand,
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CommandParameter = oldParameter
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};
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ShowInWindow(node, (_, item) =>
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{
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node.Command = newCommand;
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node.CommandParameter = newParameter;
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Dispatcher.UIThread.RunJobs();
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item.Command.ShouldBeSameAs(newCommand);
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item.CommandParameter.ShouldBeSameAs(newParameter);
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});
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}
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[Fact]
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public void Realized_Container_Tracks_Observable_Custom_Node_Command_Changes()
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{
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var oldCommand = new TrackingCommand();
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var newCommand = new TrackingCommand();
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var oldParameter = new object();
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var newParameter = new object();
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var node = new ObservableNavMenuNode
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{
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Header = "Command item",
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Command = oldCommand,
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CommandParameter = oldParameter
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};
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ShowInWindow(node, (_, item) =>
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{
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node.Command = newCommand;
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node.CommandParameter = newParameter;
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Dispatcher.UIThread.RunJobs();
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item.Command.ShouldBeSameAs(newCommand);
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item.CommandParameter.ShouldBeSameAs(newParameter);
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});
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}
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[Fact]
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public void Prepared_Container_Receives_NonObservable_Custom_Node_Command_Values()
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{
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var command = new TrackingCommand();
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var parameter = new object();
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var node = new PlainNavMenuNode
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{
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Header = "Command item",
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Command = command,
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CommandParameter = parameter
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};
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ShowInWindow(node, (_, item) =>
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{
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item.Command.ShouldBeSameAs(command);
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item.CommandParameter.ShouldBeSameAs(parameter);
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});
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}
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[Fact]
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public void Legacy_Custom_Node_Uses_Null_Command_Defaults()
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{
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INavMenuNode node = new LegacyNavMenuNode
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{
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Header = "Legacy item",
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ItemKey = "legacy-item"
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};
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node.Command.ShouldBeNull();
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node.CommandParameter.ShouldBeNull();
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ShowInWindow(node, (_, item) =>
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{
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item.Command.ShouldBeNull();
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item.CommandParameter.ShouldBeNull();
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});
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}
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[Fact]
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public void Pointer_Submission_Executes_Node_Command_Once()
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{
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var command = new TrackingCommand();
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var parameter = new object();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = command,
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CommandParameter = parameter
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};
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ShowInWindow(node, (window, item) =>
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{
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item.ItemHeader.ShouldNotBeNull();
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var header = item.ItemHeader;
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var point = header.TranslatePoint(
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new Point(header.Bounds.Width / 2, header.Bounds.Height / 2),
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window);
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point.ShouldNotBeNull();
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window.MouseMove(point.Value);
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window.MouseDown(point.Value, MouseButton.Left);
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window.MouseUp(point.Value, MouseButton.Left);
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Dispatcher.UIThread.RunJobs();
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command.ExecuteCount.ShouldBe(1);
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command.LastParameter.ShouldBeSameAs(parameter);
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});
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}
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[Fact]
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public void Pointer_Submission_With_ReactiveCommand_Coalesces_Transient_CanExecute_Changes()
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{
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NavMenuItem? rootItem = null;
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NavMenuItem? parentItem = null;
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NavMenuItem? siblingItem = null;
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NavMenuItem? leafItem = null;
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bool? siblingEnabledDuringExecution = null;
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bool? leafEnabledDuringExecution = null;
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bool? rootSelectedPathDuringExecution = null;
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bool? parentSelectedPathDuringExecution = null;
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var command = ReactiveCommand.Create<string>(_ =>
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{
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siblingEnabledDuringExecution = siblingItem!.IsEffectivelyEnabled;
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leafEnabledDuringExecution = leafItem!.IsEffectivelyEnabled;
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rootSelectedPathDuringExecution = rootItem!.IsInSelectedPath;
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parentSelectedPathDuringExecution = parentItem!.IsInSelectedPath;
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}, outputScheduler: AvaloniaScheduler.Instance);
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var sibling = new NavMenuNode
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{
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Header = "Option 1",
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ItemKey = "option-1",
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Command = command,
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CommandParameter = "option-1"
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};
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var leaf = new NavMenuNode
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{
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Header = "Option 2",
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ItemKey = "option-2",
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Command = command,
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CommandParameter = "option-2"
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};
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var parent = new NavMenuNode
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{
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Header = "Item 1",
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ItemKey = "item-1"
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};
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parent.Children.Add(sibling);
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parent.Children.Add(leaf);
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var root = new NavMenuNode
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{
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Header = "Navigation Three - Submenu",
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ItemKey = "navigation-three"
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};
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root.Children.Add(parent);
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var menu = CreateMenu(new[] { root });
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ShowInWindow(menu, (window, realizedRootItem) =>
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{
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rootItem = realizedRootItem;
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rootItem.Open();
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Dispatcher.UIThread.RunJobs();
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parentItem = rootItem.ContainerFromItem(parent).ShouldBeOfType<NavMenuItem>();
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parentItem.Open();
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Dispatcher.UIThread.RunJobs();
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leafItem = parentItem.ContainerFromItem(leaf).ShouldBeOfType<NavMenuItem>();
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siblingItem = parentItem.ContainerFromItem(sibling).ShouldBeOfType<NavMenuItem>();
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var header = leafItem.ItemHeader.ShouldNotBeNull();
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var point = header.TranslatePoint(
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new Point(header.Bounds.Width / 2, header.Bounds.Height / 2),
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window).ShouldNotBeNull();
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window.MouseMove(point);
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window.MouseDown(point, MouseButton.Left);
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window.MouseUp(point, MouseButton.Left);
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Dispatcher.UIThread.RunJobs();
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siblingEnabledDuringExecution.ShouldBe(true);
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leafEnabledDuringExecution.ShouldBe(true);
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rootSelectedPathDuringExecution.ShouldBe(true);
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parentSelectedPathDuringExecution.ShouldBe(true);
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siblingItem.IsEffectivelyEnabled.ShouldBeTrue();
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leafItem.IsEffectivelyEnabled.ShouldBeTrue();
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rootItem.IsInSelectedPath.ShouldBeTrue();
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parentItem.IsInSelectedPath.ShouldBeTrue();
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});
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}
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[Fact]
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public void Keyboard_Submission_Executes_Node_Command_Once()
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{
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var command = new TrackingCommand();
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var parameter = new object();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = command,
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CommandParameter = parameter
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};
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ShowInWindow(node, (window, _) =>
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{
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var menu = window.Content.ShouldBeOfType<AtomUI.Desktop.Controls.NavMenu>();
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menu.Focus(NavigationMethod.Tab).ShouldBeTrue();
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window.KeyPress(Key.Down, RawInputModifiers.None, PhysicalKey.ArrowDown, null);
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window.KeyPress(Key.Enter, RawInputModifiers.None, PhysicalKey.Enter, null);
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Dispatcher.UIThread.RunJobs();
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command.ExecuteCount.ShouldBe(1);
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command.LastParameter.ShouldBeSameAs(parameter);
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});
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}
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[Fact]
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public void Node_Command_CanExecute_Controls_Realized_Container_Effective_Enabled_State()
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{
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var command = new TrackingCommand
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{
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CanExecuteValue = false
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};
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = command
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};
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ShowInWindow(node, (_, item) =>
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{
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item.IsEffectivelyEnabled.ShouldBeFalse();
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command.CanExecuteValue = true;
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command.RaiseCanExecuteChanged();
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Dispatcher.UIThread.RunJobs();
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item.IsEffectivelyEnabled.ShouldBeTrue();
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node.IsEnabled.ShouldBeTrue();
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});
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}
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[Fact]
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public void Replacing_Node_Command_Unsubscribes_Old_Command_And_Subscribes_New_Command()
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{
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var oldCommand = new TrackingCommand();
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var newCommand = new TrackingCommand();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = oldCommand
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};
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ShowInWindow(node, (_, item) =>
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{
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oldCommand.SubscriberCount.ShouldBe(1);
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node.Command = newCommand;
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Dispatcher.UIThread.RunJobs();
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item.Command.ShouldBeSameAs(newCommand);
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oldCommand.SubscriberCount.ShouldBe(0);
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newCommand.SubscriberCount.ShouldBe(1);
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});
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newCommand.SubscriberCount.ShouldBe(0);
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}
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[Fact]
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public void Detaching_And_Reattaching_Menu_Does_Not_Duplicate_Command_Subscriptions()
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{
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var command = new TrackingCommand();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = command
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};
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var menu = CreateMenu(new[] { node });
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var window = new AvaloniaWindow
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{
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Width = 360,
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Height = 260,
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Content = menu
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};
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try
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{
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window.Show();
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Dispatcher.UIThread.RunJobs();
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var item = menu.ContainerFromItem(node).ShouldBeOfType<NavMenuItem>();
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command.SubscriberCount.ShouldBe(1);
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command.CanExecuteValue = false;
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command.RaiseCanExecuteChanged();
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window.Content = null;
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command.CanExecuteValue = true;
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Dispatcher.UIThread.RunJobs();
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command.SubscriberCount.ShouldBe(0);
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item.IsEffectivelyEnabled.ShouldBeTrue(
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"detaching the container must cancel a queued CanExecute update before it can write stale state.");
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window.Content = menu;
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Dispatcher.UIThread.RunJobs();
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command.SubscriberCount.ShouldBe(1);
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}
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finally
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{
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window.Content = null;
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window.Close();
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Dispatcher.UIThread.RunJobs();
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}
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command.SubscriberCount.ShouldBe(0);
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}
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[Fact]
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public void Removing_Node_Clears_Container_Command_And_Releases_Subscriptions()
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{
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var command = new TrackingCommand();
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var parameter = new object();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = command,
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CommandParameter = parameter
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};
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var nodes = new AvaloniaList<INavMenuNode> { node };
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var menu = CreateMenu(nodes);
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ShowInWindow(menu, (_, item) =>
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{
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command.SubscriberCount.ShouldBe(1);
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nodes.Remove(node);
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RunDispatcherJobsUntil(() => menu.ContainerFromItem(node) is null);
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item.Command.ShouldBeNull();
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item.CommandParameter.ShouldBeNull();
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command.SubscriberCount.ShouldBe(0);
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});
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}
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[Fact]
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public void Clearing_ItemsSource_Releases_All_Node_Command_Subscriptions()
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{
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var firstCommand = new TrackingCommand();
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var secondCommand = new TrackingCommand();
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var firstNode = new NavMenuNode
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{
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Header = "First item",
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Command = firstCommand
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};
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var secondNode = new NavMenuNode
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{
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Header = "Second item",
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Command = secondCommand
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};
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var nodes = new AvaloniaList<INavMenuNode> { firstNode, secondNode };
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var menu = CreateMenu(nodes);
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ShowInWindow(menu, (_, firstItem) =>
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{
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var secondItem = menu.ContainerFromItem(secondNode).ShouldBeOfType<NavMenuItem>();
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firstCommand.SubscriberCount.ShouldBe(1);
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secondCommand.SubscriberCount.ShouldBe(1);
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nodes.Clear();
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RunDispatcherJobsUntil(() => menu.ContainerFromItem(firstNode) is null &&
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menu.ContainerFromItem(secondNode) is null);
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firstItem.Command.ShouldBeNull();
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secondItem.Command.ShouldBeNull();
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firstCommand.SubscriberCount.ShouldBe(0);
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secondCommand.SubscriberCount.ShouldBe(0);
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});
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}
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[Fact]
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public void Replacing_ItemsSource_Releases_Old_Node_Command_Subscription()
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{
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var oldCommand = new TrackingCommand();
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var newCommand = new TrackingCommand();
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var oldNode = new NavMenuNode
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{
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Header = "Old item",
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Command = oldCommand
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};
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var newNode = new NavMenuNode
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{
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Header = "New item",
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Command = newCommand
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};
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var menu = CreateMenu(new[] { oldNode });
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ShowInWindow(menu, (_, oldItem) =>
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{
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oldCommand.SubscriberCount.ShouldBe(1);
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menu.ItemsSource = new[] { newNode };
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RunDispatcherJobsUntil(() => menu.ContainerFromItem(newNode) is NavMenuItem);
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oldItem.Command.ShouldBeNull();
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oldCommand.SubscriberCount.ShouldBe(0);
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newCommand.SubscriberCount.ShouldBe(1);
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});
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newCommand.SubscriberCount.ShouldBe(0);
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}
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[Fact]
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public void Rebinding_The_Same_Container_Releases_Previous_Node_Command_Bindings()
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{
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var oldCommand = new TrackingCommand();
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var newCommand = new TrackingCommand();
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var oldNode = new NavMenuNode
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{
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Header = "Old item",
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Command = oldCommand
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};
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var newNode = new NavMenuNode
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{
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Header = "New item",
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Command = newCommand
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};
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var menu = new AtomUI.Desktop.Controls.NavMenu();
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var item = new NavMenuItem();
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var oldBindings = item.ResetNodeBindingDisposables();
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NavMenuItemContainerBinder.BindNode(item, oldNode, menu, oldBindings);
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item.Command.ShouldBeSameAs(oldCommand);
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var newBindings = item.ResetNodeBindingDisposables();
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item.Command.ShouldBeNull();
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NavMenuItemContainerBinder.BindNode(item, newNode, menu, newBindings);
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item.Command.ShouldBeSameAs(newCommand);
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item.ClearNodeBindingDisposables();
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item.Command.ShouldBeNull();
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}
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[Fact]
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public void Reapplying_Menu_Template_Does_Not_Duplicate_Command_Subscriptions()
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{
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var command = new TrackingCommand();
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var node = new NavMenuNode
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{
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Header = "Command item",
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Command = command
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};
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ShowInWindow(node, (window, oldItem) =>
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{
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var menu = window.Content.ShouldBeOfType<AtomUI.Desktop.Controls.NavMenu>();
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var template = menu.Template;
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template.ShouldNotBeNull();
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command.SubscriberCount.ShouldBe(1);
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menu.Template = null;
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menu.ApplyTemplate();
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Dispatcher.UIThread.RunJobs();
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command.SubscriberCount.ShouldBeLessThan(2);
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menu.Template = template;
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menu.ApplyTemplate();
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Dispatcher.UIThread.RunJobs();
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command.SubscriberCount.ShouldBe(1);
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var currentItem = menu.ContainerFromItem(node).ShouldBeOfType<NavMenuItem>();
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if (!ReferenceEquals(currentItem, oldItem))
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{
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oldItem.Command.ShouldBeNull();
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}
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});
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}
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[Fact]
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public void Removing_Custom_Node_Releases_PropertyChanged_Subscriptions()
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{
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var node = new ObservableNavMenuNode
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{
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Header = "Command item",
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Command = new TrackingCommand()
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};
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var nodes = new AvaloniaList<INavMenuNode> { node };
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var menu = CreateMenu(nodes);
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ShowInWindow(menu, (_, item) =>
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{
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var realizedSubscriberCount = node.PropertyChangedSubscriberCount;
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realizedSubscriberCount.ShouldBeGreaterThan(1);
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nodes.Remove(node);
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RunDispatcherJobsUntil(() => menu.ContainerFromItem(node) is null);
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node.PropertyChangedSubscriberCount.ShouldBeLessThan(realizedSubscriberCount);
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item.Command.ShouldBeNull();
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node.Command = new TrackingCommand();
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node.CommandParameter = new object();
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Dispatcher.UIThread.RunJobs();
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item.Command.ShouldBeNull();
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item.CommandParameter.ShouldBeNull();
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});
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}
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[Fact]
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public void Removed_Observable_Custom_Node_Can_Be_Collected()
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{
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var nodeReference = CreateReleasedCustomNodeReference();
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CollectGarbage();
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nodeReference.IsAlive.ShouldBeFalse();
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}
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[Fact]
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public void Removed_Node_Command_And_Owner_Graph_Can_Be_Collected()
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{
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var references = CreateReleasedCommandGraph();
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CollectGarbage();
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references.Node.IsAlive.ShouldBeFalse();
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references.Command.IsAlive.ShouldBeFalse();
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references.Owner.IsAlive.ShouldBeFalse();
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}
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private static void ShowInWindow(INavMenuNode node, Action<AvaloniaWindow, NavMenuItem> assertion)
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{
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var menu = CreateMenu(new[] { node });
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ShowInWindow(menu, assertion);
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}
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private static AtomUI.Desktop.Controls.NavMenu CreateMenu(IEnumerable<INavMenuNode> nodes)
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{
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return new AtomUI.Desktop.Controls.NavMenu
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{
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Mode = NavMenuMode.Inline,
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IsMotionEnabled = false,
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ItemsSource = nodes
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};
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}
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private static void ShowInWindow(
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AtomUI.Desktop.Controls.NavMenu menu,
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Action<AvaloniaWindow, NavMenuItem> assertion)
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{
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var node = menu.ItemsSource!.Cast<INavMenuNode>().First();
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var window = new AvaloniaWindow
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{
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Width = 360,
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Height = 260,
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Content = menu
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};
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try
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{
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window.Show();
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Dispatcher.UIThread.RunJobs();
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menu.ApplyTemplate();
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Dispatcher.UIThread.RunJobs();
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var item = menu.ContainerFromItem(node).ShouldBeOfType<NavMenuItem>();
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assertion(window, item);
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}
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finally
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{
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window.Close();
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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private static ReleasedCommandGraphReferences CreateReleasedCommandGraph()
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{
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CommandOwner? owner = new CommandOwner();
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NavMenuNode? node = new NavMenuNode
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{
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Header = "Command item",
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Command = owner.Command
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};
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AvaloniaList<INavMenuNode>? nodes = new AvaloniaList<INavMenuNode> { node };
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AtomUI.Desktop.Controls.NavMenu? menu = CreateMenu(nodes);
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var window = new AvaloniaWindow
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{
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Width = 360,
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Height = 260,
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Content = menu
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};
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try
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{
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window.Show();
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Dispatcher.UIThread.RunJobs();
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menu.ApplyTemplate();
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Dispatcher.UIThread.RunJobs();
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var command = owner.Command;
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command.SubscriberCount.ShouldBe(1);
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nodes.Remove(node);
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RunDispatcherJobsUntil(() => menu.ContainerFromItem(node) is null);
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command.SubscriberCount.ShouldBe(0);
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var references = new ReleasedCommandGraphReferences(
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new WeakReference(node),
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new WeakReference(command),
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new WeakReference(owner));
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menu.ItemsSource = null;
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window.Content = null;
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owner = null;
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node = null;
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nodes = null;
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menu = null;
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return references;
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}
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finally
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{
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window.Content = null;
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window.Close();
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Dispatcher.UIThread.RunJobs();
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}
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}
|
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[MethodImpl(MethodImplOptions.NoInlining)]
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private static WeakReference CreateReleasedCustomNodeReference()
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{
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ObservableNavMenuNode? node = new ObservableNavMenuNode
|
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{
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Header = "Command item",
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Command = new TrackingCommand()
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};
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AvaloniaList<INavMenuNode>? nodes = new AvaloniaList<INavMenuNode> { node };
|
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AtomUI.Desktop.Controls.NavMenu? menu = CreateMenu(nodes);
|
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var window = new AvaloniaWindow
|
|
{
|
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Width = 360,
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Height = 260,
|
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Content = menu
|
|
};
|
|
|
|
try
|
|
{
|
|
window.Show();
|
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Dispatcher.UIThread.RunJobs();
|
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menu.ApplyTemplate();
|
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Dispatcher.UIThread.RunJobs();
|
|
|
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nodes.Remove(node);
|
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RunDispatcherJobsUntil(() => menu.ContainerFromItem(node) is null);
|
|
|
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var nodeReference = new WeakReference(node);
|
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menu.ItemsSource = null;
|
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window.Content = null;
|
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node = null;
|
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nodes = null;
|
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menu = null;
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return nodeReference;
|
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}
|
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finally
|
|
{
|
|
window.Content = null;
|
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window.Close();
|
|
Dispatcher.UIThread.RunJobs();
|
|
}
|
|
}
|
|
|
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private static void RunDispatcherJobsUntil(Func<bool> condition, int maxPasses = 128)
|
|
{
|
|
for (var i = 0; i < maxPasses; i++)
|
|
{
|
|
if (condition())
|
|
{
|
|
return;
|
|
}
|
|
|
|
Dispatcher.UIThread.RunJobs();
|
|
}
|
|
|
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condition().ShouldBeTrue("The expected NavMenu container state was not reached before the dispatcher pass limit.");
|
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}
|
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|
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private static void CollectGarbage()
|
|
{
|
|
for (var i = 0; i < 3; i++)
|
|
{
|
|
GC.Collect();
|
|
GC.WaitForPendingFinalizers();
|
|
GC.Collect();
|
|
}
|
|
|
|
Dispatcher.UIThread.RunJobs();
|
|
}
|
|
|
|
private sealed record ReleasedCommandGraphReferences(
|
|
WeakReference Node,
|
|
WeakReference Command,
|
|
WeakReference Owner);
|
|
|
|
private sealed class CommandOwner
|
|
{
|
|
public CommandOwner()
|
|
{
|
|
Command = new TrackingCommand(this);
|
|
}
|
|
|
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public TrackingCommand Command { get; }
|
|
}
|
|
|
|
private sealed class TrackingCommand : ICommand
|
|
{
|
|
private readonly object? _retainedState;
|
|
private EventHandler? _canExecuteChanged;
|
|
|
|
public TrackingCommand(object? retainedState = null)
|
|
{
|
|
_retainedState = retainedState;
|
|
}
|
|
|
|
public int ExecuteCount { get; private set; }
|
|
|
|
public object? LastParameter { get; private set; }
|
|
|
|
public int SubscriberCount => _canExecuteChanged?.GetInvocationList().Length ?? 0;
|
|
|
|
public bool CanExecuteValue { get; set; } = true;
|
|
|
|
public event EventHandler? CanExecuteChanged
|
|
{
|
|
add
|
|
{
|
|
_canExecuteChanged += value;
|
|
}
|
|
remove
|
|
{
|
|
_canExecuteChanged -= value;
|
|
}
|
|
}
|
|
|
|
public bool CanExecute(object? parameter) => CanExecuteValue;
|
|
|
|
public void Execute(object? parameter)
|
|
{
|
|
ExecuteCount++;
|
|
LastParameter = parameter;
|
|
}
|
|
|
|
public void RaiseCanExecuteChanged()
|
|
{
|
|
_canExecuteChanged?.Invoke(this, EventArgs.Empty);
|
|
}
|
|
}
|
|
|
|
private sealed class ObservableNavMenuNode : INavMenuNode, INotifyPropertyChanged
|
|
{
|
|
private ICommand? _command;
|
|
private object? _commandParameter;
|
|
private PropertyChangedEventHandler? _propertyChanged;
|
|
|
|
public object? Header { get; set; }
|
|
|
|
public IDataTemplate? HeaderTemplate { get; set; }
|
|
|
|
public EntityKey? ItemKey { get; set; }
|
|
|
|
public PathIcon? Icon { get; set; }
|
|
|
|
public bool IsEnabled { get; set; } = true;
|
|
|
|
public ICommand? Command
|
|
{
|
|
get => _command;
|
|
set => SetField(ref _command, value);
|
|
}
|
|
|
|
public object? CommandParameter
|
|
{
|
|
get => _commandParameter;
|
|
set => SetField(ref _commandParameter, value);
|
|
}
|
|
|
|
public ITreeNode<INavMenuNode>? ParentNode { get; private set; }
|
|
|
|
public IEnumerable<INavMenuNode> Children { get; } = [];
|
|
|
|
public int PropertyChangedSubscriberCount { get; private set; }
|
|
|
|
public event PropertyChangedEventHandler? PropertyChanged
|
|
{
|
|
add
|
|
{
|
|
_propertyChanged += value;
|
|
PropertyChangedSubscriberCount++;
|
|
}
|
|
remove
|
|
{
|
|
_propertyChanged -= value;
|
|
PropertyChangedSubscriberCount--;
|
|
}
|
|
}
|
|
|
|
public void UpdateParentNode(INavMenuNode? parentNode)
|
|
{
|
|
ParentNode = parentNode;
|
|
}
|
|
|
|
private void SetField<T>(ref T field, T value, [CallerMemberName] string? propertyName = null)
|
|
{
|
|
if (EqualityComparer<T>.Default.Equals(field, value))
|
|
{
|
|
return;
|
|
}
|
|
|
|
field = value;
|
|
_propertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
|
|
}
|
|
}
|
|
|
|
private sealed class PlainNavMenuNode : INavMenuNode
|
|
{
|
|
public object? Header { get; set; }
|
|
|
|
public IDataTemplate? HeaderTemplate { get; set; }
|
|
|
|
public EntityKey? ItemKey { get; set; }
|
|
|
|
public PathIcon? Icon { get; set; }
|
|
|
|
public bool IsEnabled { get; set; } = true;
|
|
|
|
public ICommand? Command { get; set; }
|
|
|
|
public object? CommandParameter { get; set; }
|
|
|
|
public ITreeNode<INavMenuNode>? ParentNode { get; private set; }
|
|
|
|
public IEnumerable<INavMenuNode> Children { get; } = [];
|
|
|
|
public void UpdateParentNode(INavMenuNode? parentNode)
|
|
{
|
|
ParentNode = parentNode;
|
|
}
|
|
}
|
|
|
|
private sealed class LegacyNavMenuNode : INavMenuNode
|
|
{
|
|
public object? Header { get; set; }
|
|
|
|
public IDataTemplate? HeaderTemplate { get; set; }
|
|
|
|
public EntityKey? ItemKey { get; set; }
|
|
|
|
public PathIcon? Icon { get; set; }
|
|
|
|
public bool IsEnabled { get; set; } = true;
|
|
|
|
public ITreeNode<INavMenuNode>? ParentNode { get; private set; }
|
|
|
|
public IEnumerable<INavMenuNode> Children { get; } = [];
|
|
|
|
public void UpdateParentNode(INavMenuNode? parentNode)
|
|
{
|
|
ParentNode = parentNode;
|
|
}
|
|
}
|
|
}
|