src/ElmSharp/ElmSharp/Naviframe.cs

   1 using System;
   2 using System.Collections.Generic;
   3
   4 namespace ElmSharp
   5 {
   6     public class NaviframeEventArgs : EventArgs
   7     {
   8         public EvasObject Content { get; set; }
   9     }
  10     public class Naviframe : Widget
  11     {
  12         Interop.SmartEvent _transitionFinished;
  13         readonly List<NaviItem> _itemStack = new List<NaviItem>();
  14         public Naviframe(EvasObject parent) : base(parent)
  15         {
  16             _transitionFinished = new Interop.SmartEvent(this, Handle, "transition,finished");
  17             _transitionFinished.On += (s, e) => AnimationFinished?.Invoke(this, EventArgs.Empty);
  18         }
  19
  20         public event EventHandler<NaviframeEventArgs> Popped;
  21         public event EventHandler AnimationFinished;
  22         public IReadOnlyList<NaviItem> NavigationStack
  23         {
  24             get { return _itemStack; }
  25         }
  26
  27         public bool PreserveContentOnPop
  28         {
  29             get
  30             {
  31                 return Interop.Elementary.elm_naviframe_content_preserve_on_pop_get(Handle);
  32             }
  33             set
  34             {
  35                 Interop.Elementary.elm_naviframe_content_preserve_on_pop_set(Handle, value);
  36             }
  37         }
  38
  39         public bool DefaultBackButtonEnabled
  40         {
  41             get
  42             {
  43                 return Interop.Elementary.elm_naviframe_prev_btn_auto_pushed_get(Handle);
  44             }
  45             set
  46             {
  47                 Interop.Elementary.elm_naviframe_prev_btn_auto_pushed_set(Handle, value);
  48             }
  49         }
  50
  51         public NaviItem Push(EvasObject content)
  52         {
  53             return Push(content, null);
  54         }
  55         public NaviItem Push(EvasObject content, string title)
  56         {
  57             IntPtr item = Interop.Elementary.elm_naviframe_item_push(Handle, title, IntPtr.Zero, IntPtr.Zero, content.Handle, null);
  58             NaviItem naviItem = NaviItem.FromNativeHandle(item, content);
  59             _itemStack.Add(naviItem);
  60             naviItem.Popped += (s, e) =>
  61             {
  62                 _itemStack.Remove(naviItem);
  63                 Popped?.Invoke(this, new NaviframeEventArgs() { Content = naviItem.Content });
  64             };
  65             return naviItem;
  66         }
  67
  68         public NaviItem InsertBefore(NaviItem before, EvasObject content)
  69         {
  70             return InsertBefore(before, content);
  71         }
  72         public NaviItem InsertBefore(NaviItem before, EvasObject content, string title)
  73         {
  74             IntPtr item = Interop.Elementary.elm_naviframe_item_insert_before(Handle, before, title, IntPtr.Zero, IntPtr.Zero, content, null);
  75             NaviItem naviItem = NaviItem.FromNativeHandle(item, content);
  76             int idx = _itemStack.IndexOf(before);
  77             _itemStack.Insert(idx, naviItem);
  78             return naviItem;
  79         }
  80
  81         public void Pop()
  82         {
  83             Interop.Elementary.elm_naviframe_item_pop(Handle);
  84         }
  85
  86         protected override IntPtr CreateHandle(EvasObject parent)
  87         {
  88             return Interop.Elementary.elm_naviframe_add(parent.Handle);
  89         }
  90     }
  91 }