完成支持子回复的集合（未测试）

sovetskyfish · Sep 28, 2019 · 58e2a26 · 58e2a26
1 parent 5688d1a
commit 58e2a26
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Showing 5 changed files with 77 additions and 5 deletions.
diff --git a/PixivFSUWP/Converters/ChildrenCommentVisibilityConverter.cs b/PixivFSUWP/Converters/ChildrenCommentVisibilityConverter.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Data;
+
+namespace PixivFSUWP.Converters
+{
+    public class ChildrenCommentVisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+        {
+            var childrenComments = value as ObservableCollection<ViewModels.CommentViewModel>;
+            if (childrenComments == null) return Visibility.Collapsed;
+            if (childrenComments.Count == 0) return Visibility.Collapsed;
+            return Visibility.Visible;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/PixivFSUWP/Data/CommentsCollection.cs b/PixivFSUWP/Data/CommentsCollection.cs
@@ -20,6 +20,7 @@ public class CommentsCollection : ObservableCollection<ViewModels.CommentViewMod
         bool _emergencyStop = false;
         EventWaitHandle pause = new ManualResetEvent(true);
         readonly string illustid;
+        List<ViewModels.CommentViewModel> ChildrenComments = new List<ViewModels.CommentViewModel>();
 
         public CommentsCollection(string IllustID) => illustid = IllustID;
 
@@ -98,9 +99,46 @@ protected async Task<LoadMoreItemsResult> LoadMoreItemsAsync(CancellationToken c
                     }
                     Data.IllustCommentItem recommendi = Data.IllustCommentItem.FromJsonValue(recillust.GetObject());
                     var recommendmodel = ViewModels.CommentViewModel.FromItem(recommendi);
-                    //await recommendmodel.LoadAvatarAsync();
-                    Add(recommendmodel);
-                    toret.Count++;
+                    //查找是否存在子回复
+                    var children = from item
+                                   in ChildrenComments
+                                   where item.ParentID == recommendmodel.ID
+                                   select item;
+                    if (children.Count() > 0)
+                    {
+                        //存在子回复
+                        recommendmodel.ChildrenComments = new ObservableCollection<ViewModels.CommentViewModel>();
+                        foreach (var child in children)
+                        {
+                            if (child.ChildrenComments != null)
+                            {
+                                foreach (var childschild in child.ChildrenComments)
+                                {
+                                    childschild.Comment = string.Format("RE {0}: {1}",
+                                        child.UserName, childschild.Comment);
+                                    recommendmodel.ChildrenComments.Add(childschild);
+                                }
+                                child.ChildrenComments.Clear();
+                                child.ChildrenComments = null;
+                                GC.Collect();
+                            }
+                            recommendmodel.ChildrenComments.Add(child);
+                            ChildrenComments.Remove(child);
+                        }
+                    }
+                    //检查自己是不是子回复
+                    if (recommendmodel.ParentID != -1)
+                    {
+                        //自己也是子回复
+                        ChildrenComments.Add(recommendmodel);
+                    }
+                    else
+                    {
+                        //自己并非子回复
+                        //await recommendmodel.LoadAvatarAsync();
+                        Add(recommendmodel);
+                        toret.Count++;
+                    }
                 }
                 return toret;
             }

diff --git a/PixivFSUWP/Data/IllustCommentItem.cs b/PixivFSUWP/Data/IllustCommentItem.cs
@@ -16,7 +16,6 @@ public class IllustCommentItem
         public string UserAccount { get; set; }
         public string AvatarUrl { get; set; }
         public int ParentCommentID { get; set; }
-        public List<int> ChildrenComments { get; set; } = null;
 
         public static IllustCommentItem FromJsonValue(JsonObject Source)
         {

diff --git a/PixivFSUWP/PixivFSUWP.csproj b/PixivFSUWP/PixivFSUWP.csproj
@@ -141,6 +141,7 @@
     <Compile Include="Controls\WaterfallContentPanel.cs" />
     <Compile Include="Controls\WaterfallListView.cs" />
     <Compile Include="Converters\BookmarkHeartVisibilityConverter.cs" />
+    <Compile Include="Converters\ChildrenCommentVisibilityConverter.cs" />
     <Compile Include="Converters\MultiPageVisibilityConverter.cs" />
     <Compile Include="Data\Backstack.cs" />
     <Compile Include="Data\BigImageDetail.cs" />

diff --git a/PixivFSUWP/ViewModels/CommentViewModel.cs b/PixivFSUWP/ViewModels/CommentViewModel.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -9,12 +10,16 @@ namespace PixivFSUWP.ViewModels
 {
     public class CommentViewModel
     {
+        public int ID { get; set; }
         public string Comment { get; set; }
         public string UserName { get; set; }
         public string UserAccount { get; set; }
         private string _dateTime { get; set; }
         public string AvatarUrl { get; set; }
         //public BitmapImage Avatar { get; set; }
+        public int ParentID { get; set; }
+        public ObservableCollection<CommentViewModel> ChildrenComments { get; set; } = null;
+
         public string DateTime
         {
             get => DateTimeOffset.Parse(_dateTime).LocalDateTime.ToString();
@@ -27,11 +32,13 @@ public static CommentViewModel FromItem(Data.IllustCommentItem Item)
         {
             return new CommentViewModel()
             {
+                ID = Item.ID,
                 Comment = Item.Comment,
                 UserName = Item.UserName,
                 UserAccount = "@" + Item.UserAccount,
                 _dateTime = Item.DateTime,
-                AvatarUrl = Item.AvatarUrl
+                AvatarUrl = Item.AvatarUrl,
+                ParentID = Item.ParentCommentID
             };
         }
     }