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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.Markup;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace Tango.Touch.Keyboard
{
/// <summary>
/// Interaction logic for KeyboardView.xaml
/// </summary>
[ContentProperty(nameof(View))]
public partial class KeyboardView : Control
{
private static KeyboardView _instance;
private TouchKeyboard keyboard;
#region Properties
public bool IsOpened
{
get { return (bool)GetValue(IsOpenedProperty); }
set { SetValue(IsOpenedProperty, value); }
}
public static readonly DependencyProperty IsOpenedProperty =
DependencyProperty.Register("IsOpened", typeof(bool), typeof(KeyboardView), new PropertyMetadata(false));
public FrameworkElement View
{
get { return (FrameworkElement)GetValue(ViewProperty); }
set { SetValue(ViewProperty, value); }
}
public static readonly DependencyProperty ViewProperty =
DependencyProperty.Register("View", typeof(FrameworkElement), typeof(KeyboardView), new PropertyMetadata(null));
#endregion
#region Attached Properties
#region Mode
public static readonly DependencyProperty ModeProperty =
DependencyProperty.RegisterAttached("Mode",
typeof(TouchKeyboardMode?), typeof(KeyboardView),
new FrameworkPropertyMetadata(null, ModeChanged));
/// <summary>
/// Mode changed.
/// </summary>
/// <param name="d">The d.</param>
/// <param name="e">The <see cref="DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void ModeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RegisterElement(d as FrameworkElement);
}
/// <summary>
/// Sets the Mode attached property.
/// </summary>
/// <param name="element">The element.</param>
/// <param name="value">if set to <c>true</c> [value].</param>
public static void SetMode(FrameworkElement element, TouchKeyboardMode? value)
{
element.SetValue(ModeProperty, value);
}
/// <summary>
/// Gets the Mode attached property.
/// </summary>
/// <param name="element">The element.</param>
/// <returns></returns>
public static TouchKeyboardMode? GetMode(FrameworkElement element)
{
return (TouchKeyboardMode?)element.GetValue(ModeProperty);
}
private static void RegisterElement(FrameworkElement element)
{
element.PreviewMouseUp += (_, __) => OnElementFocused(element);
element.PreviewTouchUp += (_, __) => OnElementFocused(element);
element.GotFocus += (_, __) => OnElementFocused(element);
element.LostFocus += (_, __) => OnElementLostFocus(element);
}
private async static void OnElementFocused(FrameworkElement element)
{
_instance.keyboard.ActionKeyMode = GetAction(element);
_instance.keyboard.Mode = GetMode(element).Value;
_instance.IsOpened = true;
await Task.Delay(200);
element.BringIntoView();
}
private static void OnElementLostFocus(FrameworkElement element)
{
_instance.IsOpened = false;
}
#endregion
#region Action
public static readonly DependencyProperty ActionProperty =
DependencyProperty.RegisterAttached("Action",
typeof(KeyboardActionKeyMode), typeof(KeyboardView),
new FrameworkPropertyMetadata(KeyboardActionKeyMode.Tab, ActionChanged));
/// <summary>
/// Action changed.
/// </summary>
/// <param name="d">The d.</param>
/// <param name="e">The <see cref="DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void ActionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RegisterElement(d as FrameworkElement);
}
/// <summary>
/// Sets the Action attached property.
/// </summary>
/// <param name="element">The element.</param>
/// <param name="value">if set to <c>true</c> [value].</param>
public static void SetAction(FrameworkElement element, KeyboardActionKeyMode value)
{
element.SetValue(ActionProperty, value);
}
/// <summary>
/// Gets the Action attached property.
/// </summary>
/// <param name="element">The element.</param>
/// <returns></returns>
public static KeyboardActionKeyMode GetAction(FrameworkElement element)
{
return (KeyboardActionKeyMode)element.GetValue(ActionProperty);
}
#endregion
#endregion
#region Constructors
/// <summary>
/// Initializes a new instance of the <see cref="KeyboardView"/> class.
/// </summary>
public KeyboardView()
{
_instance = this;
}
#endregion
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
keyboard = GetTemplateChild("PART_Keyboard") as TouchKeyboard;
keyboard.ActionKeyPressed += OnActionKeyPressed;
}
private void OnActionKeyPressed(object sender, KeyboardActionKeyMode mode)
{
if (mode == KeyboardActionKeyMode.Enter || mode == KeyboardActionKeyMode.Search)
{
IsOpened = false;
}
}
static KeyboardView()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(KeyboardView), new FrameworkPropertyMetadata(typeof(KeyboardView)));
}
}
}
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