src/XSF/Tizen.Wearable.CircularUI.Forms.Renderer/Shell/NavigationView.cs

   1 using ElmSharp;
   2 using ElmSharp.Wearable;
   3 using System;
   4 using System.Collections.Generic;
   5 using Xamarin.Forms;
   6 using Xamarin.Forms.Platform.Tizen;
   7 using ELayout = ElmSharp.Layout;
   8 using EColor = ElmSharp.Color;
   9
  10 namespace Tizen.Wearable.CircularUI.Forms.Renderer
  11 {
  12     public class NavigationView : ELayout
  13     {
  14         readonly int _dafaultIconSize = 60;
  15
  16         class Item
  17         {
  18             public Element Source { get; set; }
  19             public string Text { get; set; }
  20             public string Icon { get; set; }
  21         }
  22
  23         Box _outterBox;
  24         ELayout _surfaceLayout;
  25         CircleSurface _surface;
  26         CircleGenList _naviMenu;
  27
  28         GenItemClass _defaultClass;
  29         SmartEvent _draggedUpCallback;
  30         SmartEvent _draggedDownCallback;
  31
  32         GenListItem _header;
  33         GenListItem _footer;
  34
  35         List<List<Element>> _itemCache;
  36         List<GenListItem> _items = new List<GenListItem>();
  37
  38         public NavigationView(EvasObject parent) : base(parent)
  39         {
  40             InitializeComponent();
  41         }
  42
  43         public event EventHandler<SelectedItemChangedEventArgs> ItemSelected;
  44
  45         public event EventHandler<DraggedEventArgs> Dragged;
  46
  47
  48         EColor _backgroundColor = EColor.Black;
  49         public override EColor BackgroundColor
  50         {
  51             get => _backgroundColor;
  52             set
  53             {
  54                 _backgroundColor = value.IsDefault ? EColor.Black : value;
  55                 UpdateBackgroundColor();
  56             }
  57         }
  58
  59         EColor _foregroundColor = EColor.Default;
  60         public EColor ForegroundColor
  61         {
  62             get => _foregroundColor;
  63             set
  64             {
  65                 _foregroundColor = value;
  66                 UpdateForegroundColor();
  67             }
  68         }
  69
  70
  71         public void Build(List<List<Element>> items)
  72         {
  73             // Only update when items was changed
  74             if (!IsUpdated(items))
  75             {
  76                 return;
  77             }
  78             _itemCache = items;
  79
  80             _naviMenu.Clear();
  81             _items.Clear();
  82             // header
  83             _header = _naviMenu.Append(_defaultClass, new Item { Text = "" });
  84
  85             // TODO. need to improve, need to support group
  86             foreach (var group in items)
  87             {
  88                 foreach (var item in group)
  89                 {
  90                     var data = new Item
  91                     {
  92                         Source = item
  93                     };
  94                     if (item is BaseShellItem shellItem)
  95                     {
  96                         data.Text = shellItem.Title;
  97                         data.Icon = (shellItem.Icon as FileImageSource)?.ToAbsPath();
  98                     }
  99                     else if (item is MenuItem menuItem)
 100                     {
 101                         data.Text = menuItem.Text;
 102                         data.Icon = (menuItem.IconImageSource as FileImageSource)?.ToAbsPath();
 103                     }
 104                     var genitem = _naviMenu.Append(_defaultClass, data, GenListItemType.Normal);
 105                     genitem.SetPartColor("bg", _backgroundColor);
 106                     _items.Add(genitem);
 107                 }
 108             }
 109             _footer = _naviMenu.Append(_defaultClass, new Item { Text = "" });
 110         }
 111
 112         public void Activate()
 113         {
 114             (_naviMenu as IRotaryActionWidget)?.Activate();
 115         }
 116         public void Deactivate()
 117         {
 118             (_naviMenu as IRotaryActionWidget)?.Deactivate();
 119         }
 120
 121         protected override IntPtr CreateHandle(EvasObject parent)
 122         {
 123             _outterBox = new Box(parent);
 124             return _outterBox.Handle;
 125         }
 126
 127         void InitializeComponent()
 128         {
 129             _outterBox.SetLayoutCallback(OnLayout);
 130
 131             _surfaceLayout = new ELayout(this);
 132             _surfaceLayout.Show();
 133             _surface = new CircleSurface(_surfaceLayout);
 134
 135             _naviMenu = new CircleGenList(this, _surface)
 136             {
 137                 Homogeneous = true,
 138                 BackgroundColor = _backgroundColor
 139             };
 140             _naviMenu.Show();
 141
 142             _draggedUpCallback = new SmartEvent(_naviMenu, "drag,start,up");
 143             _draggedUpCallback.On += (s, e) =>
 144             {
 145                 if (_footer.TrackObject.IsVisible)
 146                 {
 147                     Dragged?.Invoke(this, new DraggedEventArgs(DraggedState.EdgeBottom));
 148                 }
 149                 else
 150                 {
 151                     Dragged?.Invoke(this, new DraggedEventArgs(DraggedState.Up));
 152                 }
 153             };
 154
 155             _draggedDownCallback = new SmartEvent(_naviMenu, "drag,start,down");
 156             _draggedDownCallback.On += (s, e) =>
 157             {
 158                 if (_header.TrackObject.IsVisible)
 159                 {
 160                     Dragged?.Invoke(this, new DraggedEventArgs(DraggedState.EdgeTop));
 161                 }
 162                 else
 163                 {
 164                     Dragged?.Invoke(this, new DraggedEventArgs(DraggedState.Down));
 165                 }
 166             };
 167
 168             _outterBox.PackEnd(_naviMenu);
 169             _outterBox.PackEnd(_surfaceLayout);
 170
 171             _surfaceLayout.StackAbove(_naviMenu);
 172
 173             _defaultClass = new GenItemClass("1icon_1text")
 174             {
 175                 GetTextHandler = (obj, part) =>
 176                 {
 177                     if (part == "elm.text")
 178                     {
 179                         var text = (obj as Item).Text;
 180                         if (_foregroundColor != EColor.Default)
 181                             return $"<span color='{_foregroundColor.ToHex()}'>{text}</span>";
 182                         else
 183                             return text;
 184                     }
 185                     return null;
 186                 },
 187                 GetContentHandler = (obj, part) =>
 188                 {
 189                     if (part == "elm.swallow.icon" && obj is Item menuItem && !string.IsNullOrEmpty(menuItem.Icon))
 190                     {
 191                         var icon = new ElmSharp.Image(Xamarin.Forms.Forms.NativeParent)
 192                         {
 193                             AlignmentX = -1,
 194                             AlignmentY = -1,
 195                             WeightX = 1.0,
 196                             WeightY = 1.0,
 197                             MinimumWidth = _dafaultIconSize,
 198                             MinimumHeight = _dafaultIconSize,
 199                         };
 200                         icon.Show();
 201                         icon.Load(menuItem.Icon);
 202                         return icon;
 203                     }
 204                     return null;
 205                 }
 206             };
 207
 208             _naviMenu.ItemSelected += OnItemSelected;
 209
 210         }
 211
 212         void OnItemSelected(object sender, GenListItemEventArgs e)
 213         {
 214             ItemSelected?.Invoke(this, new SelectedItemChangedEventArgs((e.Item.Data as Item).Source, -1));
 215         }
 216
 217         void OnLayout()
 218         {
 219             _surfaceLayout.Geometry = Geometry;
 220             _naviMenu.Geometry = Geometry;
 221         }
 222
 223         void UpdateBackgroundColor()
 224         {
 225             _naviMenu.BackgroundColor = _backgroundColor;
 226             foreach (var item in _items)
 227             {
 228                 item.SetPartColor("bg", _backgroundColor);
 229             }
 230         }
 231
 232         void UpdateForegroundColor()
 233         {
 234             foreach (var item in _items)
 235             {
 236                 item.Update();
 237             }
 238         }
 239
 240         bool IsUpdated(List<List<Element>> items)
 241         {
 242             if (_itemCache == null)
 243                 return true;
 244
 245             if (_itemCache.Count != items.Count)
 246                 return true;
 247
 248             for (int i = 0; i < items.Count; i++)
 249             {
 250                 if (_itemCache[i].Count != items[i].Count)
 251                     return true;
 252
 253                 for (int j = 0; j < items[i].Count; j++)
 254                 {
 255                     if (_itemCache[i][j] != items[i][j])
 256                         return true;
 257                 }
 258             }
 259             return false;
 260         }
 261
 262     }
 263     public enum DraggedState
 264     {
 265         EdgeTop,
 266         Up,
 267         Down,
 268         EdgeBottom,
 269     }
 270
 271     public class DraggedEventArgs
 272     {
 273         public DraggedState State { get; private set; }
 274
 275         public DraggedEventArgs(DraggedState state)
 276         {
 277             State = state;
 278         }
 279     }
 280
 281     static class FileImageSourceEX
 282     {
 283         public static string ToAbsPath(this FileImageSource source)
 284         {
 285             return ResourcePath.GetPath(source.File);
 286         }
 287     }
 288
 289     static class ColorEX
 290     {
 291         public static string ToHex(this EColor c)
 292         {
 293             return string.Format("#{0:X2}{1:X2}{2:X2}{3:X2}", c.R, c.G, c.B, c.A);
 294         }
 295     }
 296 }