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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace Tango.FSE.UI.Views
{
/// <summary>
/// Interaction logic for MainView.xaml
/// </summary>
public partial class MainView : UserControl
{
private UIElement _previousFocusedElement;
private object _lastSelectedItem;
public static MainView Instance { get; set; }
public MainView()
{
Instance = this;
InitializeComponent();
}
private async void GridMessageBox_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (gridMessageBox.IsVisible)
{
_previousFocusedElement = Keyboard.FocusedElement as UIElement;
await Task.Delay(100);
btnOK.Focus();
}
else
{
_previousFocusedElement?.Focus();
}
}
private async void GridDialog_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (btnDialogOK.IsDefault)
{
if (gridDialog.IsVisible)
{
_previousFocusedElement = Keyboard.FocusedElement as UIElement;
await Task.Delay(100);
btnDialogOK.Focus();
}
else
{
_previousFocusedElement?.Focus();
}
}
}
private async void GridInputBox_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (gridInputBox.IsVisible)
{
_previousFocusedElement = Keyboard.FocusedElement as UIElement;
await Task.Delay(100);
txtInput.Focus();
Keyboard.Focus(txtInput);
txtInput.SelectAll();
btnInputOK.IsDefault = true;
}
else
{
_previousFocusedElement?.Focus();
}
}
private void TxtInput_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
if (btnInputOK.Command != null)
{
if (btnInputOK.Command.CanExecute(null))
{
btnInputOK.Command.Execute(null);
}
}
e.Handled = true;
}
else if (e.Key == Key.Escape)
{
if (btnInputCancel.Command != null)
{
if (btnInputCancel.Command.CanExecute(null))
{
btnInputCancel.Command.Execute(null);
}
}
e.Handled = true;
}
}
}
}
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