66 lines
1.9 KiB
C#
66 lines
1.9 KiB
C#
using System.ComponentModel;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Threading;
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using UtopiaCanteenSystem.ViewModels;
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namespace UtopiaCanteenSystem.Views;
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/// <summary>
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/// Minimal code-behind for PasswordBox + initial focus.
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/// </summary>
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public partial class AdminSettingsAuthView : UserControl
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{
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private AdminSettingsAuthViewModel? _vm;
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public AdminSettingsAuthView()
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{
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InitializeComponent();
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Loaded += OnLoaded;
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DataContextChanged += OnDataContextChanged;
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}
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private void OnLoaded(object sender, RoutedEventArgs e)
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{
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Dispatcher.BeginInvoke(() =>
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{
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PasswordBox.Password = string.Empty;
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if (DataContext is AdminSettingsAuthViewModel vm)
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vm.Password = string.Empty;
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UsernameTextBox.Focus();
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UsernameTextBox.SelectAll();
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}, DispatcherPriority.Input);
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}
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private void OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
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{
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if (_vm != null)
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_vm.PropertyChanged -= VmOnPropertyChanged;
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_vm = DataContext as AdminSettingsAuthViewModel;
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if (_vm != null)
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_vm.PropertyChanged += VmOnPropertyChanged;
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PasswordBox.Password = string.Empty;
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if (DataContext is AdminSettingsAuthViewModel vm)
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vm.Password = string.Empty;
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}
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private void VmOnPropertyChanged(object? sender, PropertyChangedEventArgs e)
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{
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if (!string.Equals(e.PropertyName, nameof(AdminSettingsAuthViewModel.Password), StringComparison.Ordinal))
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return;
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if (_vm != null && string.IsNullOrEmpty(_vm.Password) && !string.IsNullOrEmpty(PasswordBox.Password))
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PasswordBox.Password = string.Empty;
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}
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private void PasswordBox_OnPasswordChanged(object sender, RoutedEventArgs e)
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{
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if (DataContext is AdminSettingsAuthViewModel vm)
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vm.Password = PasswordBox.Password;
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}
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}
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