feature: search in ranking page

Pixiview/Illust/IllustCollectionPage.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Collections.ObjectModel;
 using System.Linq;
 using System.Threading.Tasks;
 using System.Windows.Input;
@@ -17,6 +16,7 @@ namespace Pixiview.Illust
     public interface IIllustCollectionPage
     {
         List<IllustItem> Favorites { get; }
+        IllustCollection IllustCollection { get; set; }
     }
 
     public abstract class IllustDataCollectionPage : IllustCollectionPage<IllustData> { }
@@ -61,6 +61,7 @@ namespace Pixiview.Illust
         }
 
         public List<IllustItem> Favorites { get; } = new List<IllustItem>();
+        public IllustCollection IllustCollection { get; set; }
 
         protected virtual bool IsFavoriteVisible => true;
 
@@ -122,14 +123,7 @@ namespace Pixiview.Illust
                     columns = 2;
                     break;
                 case Orientation.PortraitUpsideDown:
-                    if (DeviceInfo.Idiom == DeviceIdiom.Phone)
-                    {
-                        columns = 4;
-                    }
-                    else
-                    {
-                        columns = 2;
-                    }
+                    columns = isPhone ? 4 : 2;
                     break;
                 case Orientation.Unknown:
                 case Orientation.LandscapeLeft:
@@ -323,6 +317,7 @@ namespace Pixiview.Illust
                     item.IsFavorite = Favorites.Any(i => i.Id == item.Id);
                 }
             }
+            IllustCollection = collection;
             Illusts = collection;
             Loading = false;
 
@@ -361,7 +356,7 @@ namespace Pixiview.Illust
         #endregion
     }
 
-    public class IllustCollection : ObservableCollection<IllustItem>
+    public class IllustCollection : List<IllustItem>
     {
         private static readonly object sync = new object();
         private static IllustCollection empty;