lmxopcua/src/ZB.MOM.WW.LmxOpcUa.Client.UI/Views/MainWindow.axaml.cs

using System.ComponentModel;
using Avalonia.Controls;
using Avalonia.Interactivity;
using ZB.MOM.WW.LmxOpcUa.Client.UI.ViewModels;

namespace ZB.MOM.WW.LmxOpcUa.Client.UI.Views;

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    protected override void OnLoaded(RoutedEventArgs e)
    {
        base.OnLoaded(e);

        var browseTreeView = this.FindControl<BrowseTreeView>("BrowseTreePanel");
        var treeView = browseTreeView?.FindControl<TreeView>("BrowseTree");
        if (treeView != null) treeView.SelectionChanged += OnTreeSelectionChanged;

        // Wire up context menu opening to sync selection and check history
        var contextMenu = this.FindControl<ContextMenu>("TreeContextMenu");
        if (contextMenu != null) contextMenu.Opening += OnTreeContextMenuOpening;
    }

    private void OnTreeSelectionChanged(object? sender, SelectionChangedEventArgs e)
    {
        if (DataContext is not MainWindowViewModel vm || sender is not TreeView treeView) return;

        // Update single selection for read/write and history panels
        vm.SelectedTreeNode = treeView.SelectedItem as TreeNodeViewModel;

        // Sync multi-selection collection
        vm.SelectedTreeNodes.Clear();
        foreach (var item in treeView.SelectedItems)
            if (item is TreeNodeViewModel node)
                vm.SelectedTreeNodes.Add(node);
    }

    private void OnTreeContextMenuOpening(object? sender, CancelEventArgs e)
    {
        if (DataContext is MainWindowViewModel vm) vm.UpdateHistoryEnabledForSelection();
    }
}