Tizen.Xamarin.Forms.Extension/FloatingButton.cs

   1 using System;
   2 using Xamarin.Forms;
   3
   4 namespace Tizen.Xamarin.Forms.Extension
   5 {
   6     /// <summary>
   7     /// The FloatingButton class.
   8     /// This is only supported for mobile profiles.
   9     /// </summary>
  10     /// <example>
  11     /// <code>
  12     /// FloatingButton floatingButton = new FloatingButton
  13     /// {
  14     ///     MovablePosition = FloatingButtonMovablePosition.All,
  15     /// };
  16     ///
  17     /// FloatingButtonItem item = new FloatingButtonItem();
  18     /// item.Icon = new FileImageSource { File = "Icon.png" };
  19     /// item.Clicked += (s,e) => { ... };
  20     /// floatingButton.FirstButton = item;
  21     ///
  22     /// this.Appearing += (s,e) =>
  23     /// {
  24     ///     If (!floatingButton.IsShown)
  25     ///         floatingButton.Show();
  26     /// }
  27     /// this.Disappearing += (s,e) =>
  28     /// {
  29     ///     If (floatingButton.IsShown)
  30     ///         floatingButton.Hide();
  31     /// }
  32     /// </code>
  33     /// </example>
  34     public class FloatingButton : BindableObject, IFloatingButton
  35     {
  36         public static readonly BindableProperty MovablePositionProperty = BindableProperty.Create(nameof(MovablePosition), typeof(FloatingButtonMovablePosition), typeof(FloatingButton), FloatingButtonMovablePosition.All);
  37
  38         public static readonly BindableProperty IsShownProperty = BindableProperty.Create(nameof(IsShown), typeof(bool), typeof(FloatingButton), true);
  39
  40         public static readonly BindableProperty FirstButtonProperty = BindableProperty.Create(nameof(FirstButton), typeof(FloatingButtonItem), typeof(FloatingButton), null);
  41
  42         public static readonly BindableProperty SecondButtonProperty = BindableProperty.Create(nameof(SecondButton), typeof(FloatingButtonItem), typeof(FloatingButton), null);
  43
  44         IFloatingButton _floatingButton = null;
  45
  46         /// <summary>
  47         /// Gets or sets the movability state of the FloatingButton. This is a bindable property.
  48         /// </summary>
  49         public FloatingButtonMovablePosition MovablePosition
  50         {
  51             get { return (FloatingButtonMovablePosition)GetValue(MovablePositionProperty); }
  52             set { SetValue(MovablePositionProperty, value); }
  53         }
  54
  55         /// <summary>
  56         /// Gets the horizontal position of the FloatingButton. This is a bindable property.
  57         /// </summary>
  58         public FloatingButtonPosition Position
  59         {
  60             get { return _floatingButton.Position; }
  61         }
  62
  63         /// <summary>
  64         /// Gets the visible state of the FloatingButton.
  65         /// </summary>
  66         public bool IsShown
  67         {
  68             get { return (bool)GetValue(IsShownProperty); }
  69             internal set { SetValue(IsShownProperty, value); }
  70         }
  71
  72         /// <summary>
  73         /// Gets and sets the internal button of the FloatingButton.
  74         /// </summary>
  75         public FloatingButtonItem FirstButton
  76         {
  77             get { return (FloatingButtonItem)GetValue(FirstButtonProperty); }
  78             set { SetValue(FirstButtonProperty, value); }
  79         }
  80
  81         /// <summary>
  82         /// Gets and sets the internal button of the FloatingButton.
  83         /// </summary>
  84         public FloatingButtonItem SecondButton
  85         {
  86             get { return (FloatingButtonItem)GetValue(SecondButtonProperty); }
  87             set { SetValue(SecondButtonProperty, value); }
  88         }
  89
  90         /// <summary>
  91         /// Sets the horizontal position of the FloatingButton.
  92         /// </summary>
  93         /// <param name="position"> The destination position of the FloatingButton. </param>
  94         /// <param name="animated"> Set the animation when moving the position. </param>
  95         public void SetPosition(FloatingButtonPosition position, bool animated)
  96         {
  97             if (MovablePosition != FloatingButtonMovablePosition.None)
  98             {
  99                 _floatingButton.SetPosition(position, animated);
 100             }
 101         }
 102
 103         /// <summary>
 104         /// A method to hide the FloatingButton.
 105         /// </summary>
 106         public void Hide()
 107         {
 108             IsShown = false;
 109             _floatingButton.Hide();
 110         }
 111
 112         /// <summary>
 113         /// A method to show the FloatingButton.
 114         /// </summary>
 115         public void Show()
 116         {
 117             IsShown = true;
 118             _floatingButton.Show();
 119         }
 120
 121         public FloatingButton()
 122         {
 123             if (Device.Idiom != TargetIdiom.Phone)
 124                 throw new Exception("FloatingButton is only support mobile profiles.");
 125
 126             _floatingButton = DependencyService.Get<IFloatingButton>(DependencyFetchTarget.GlobalInstance);
 127
 128             if (_floatingButton == null)
 129                 throw new Exception("Object reference not set to an instance of a FloatingButton.");
 130
 131             SetBinding(MovablePositionProperty, new Binding(nameof(MovablePosition), mode: BindingMode.TwoWay, source: _floatingButton));
 132             SetBinding(FirstButtonProperty, new Binding(nameof(FirstButton), mode: BindingMode.TwoWay, source: _floatingButton));
 133             SetBinding(SecondButtonProperty, new Binding(nameof(SecondButton), mode: BindingMode.TwoWay, source: _floatingButton));
 134         }
 135     }
 136 }