Fix UI issues with Camera Monitor (#31809)

* Fix jumpy camera monitor UI

Basically copy-pasted same solution from #30292

* Remove duplicate code; use shared ItemList method to sync items

Content.Client/CriminalRecords/CriminalRecordsConsoleWindow.xaml.cs

@@ -213,52 +213,14 @@ public sealed partial class CriminalRecordsConsoleWindow : FancyWindow
             return;
         }
 
-        var entries = listing.ToList();
+        var entries = listing.Select(i => new ItemList.Item(RecordListing) {
-        entries.Sort((a, b) => string.Compare(a.Value, b.Value, StringComparison.Ordinal));
+                Text = i.Value,
-        // `entries` now contains the definitive list of items which should be in
+                Metadata = i.Key
-        // our list of records and is in the order we want to present those items.
+        }).ToList();
-
+        entries.Sort((a, b) => string.Compare(a.Text, b.Text, StringComparison.Ordinal));
-        // Walk through the existing items in RecordListing and in the updated listing
+        RecordListing.SetItems(entries, (a,b) => string.Compare(a.Text, b.Text));
-        // in parallel to synchronize the items in RecordListing with `entries`.
-        int i = RecordListing.Count - 1;
-        int j = entries.Count - 1;
-        while (i >= 0 && j >= 0)
-        {
-            var strcmp = string.Compare(RecordListing[i].Text, entries[j].Value, StringComparison.Ordinal);
-            if (strcmp == 0)
-            {
-                // This item exists in both RecordListing and `entries`. Nothing to do.
-                i--;
-                j--;
-            }
-            else if (strcmp > 0)
-            {
-                // Item exists in RecordListing, but not in `entries`. Remove it.
-                RecordListing.RemoveAt(i);
-                i--;
-            }
-            else if (strcmp < 0)
-            {
-                // A new entry which doesn't exist in RecordListing. Create it.
-                RecordListing.Insert(i + 1, new ItemList.Item(RecordListing){Text = entries[j].Value, Metadata = entries[j].Key});
-                j--;
-            }
-        }
-
-        // Any remaining items in RecordListing don't exist in `entries`, so remove them
-        while (i >= 0)
-        {
-            RecordListing.RemoveAt(i);
-            i--;
-        }
-
-        // And finally, any remaining items in `entries`, don't exist in RecordListing. Create them.
-        while (j >= 0)
-        {
-            RecordListing.Insert(0, new ItemList.Item(RecordListing){ Text = entries[j].Value, Metadata = entries[j].Key });
-            j--;
-        }
     }
+
     private void PopulateRecordContainer(GeneralStationRecord stationRecord, CriminalRecord criminalRecord)
     {
         var specifier = new SpriteSpecifier.Rsi(new ResPath("Interface/Misc/job_icons.rsi"), "Unknown");

Content.Client/SurveillanceCamera/UI/SurveillanceCameraMonitorWindow.xaml.cs

@@ -125,14 +125,12 @@ public sealed partial class SurveillanceCameraMonitorWindow : DefaultWindow
 
     private void PopulateCameraList(Dictionary<string, string> cameras)
     {
-        SubnetList.Clear();
+        var entries = cameras.Select(i => new ItemList.Item(SubnetList) {
-
+            Text = $"{i.Value}: {i.Key}",
-        foreach (var (address, name) in cameras)
+            Metadata = i.Key
-        {
+        }).ToList();
-            AddCameraToList(name, address);
+        entries.Sort((a, b) => string.Compare(a.Text, b.Text, StringComparison.Ordinal));
-        }
+        SubnetList.SetItems(entries, (a,b) => string.Compare(a.Text, b.Text));
-
-        SubnetList.SortItemsByText();
     }
 
     private void SetCameraView(IEye? eye)
@@ -187,12 +185,6 @@ public sealed partial class SurveillanceCameraMonitorWindow : DefaultWindow
         return SubnetSelector.ItemCount - 1;
     }
 
-    private void AddCameraToList(string name, string address)
-    {
-        var item = SubnetList.AddItem($"{name}: {address}");
-        item.Metadata = address;
-    }
-
     private void OnSubnetListSelect(ItemList.ItemListSelectedEventArgs args)
     {
         CameraSelected!((string) SubnetList[args.ItemIndex].Metadata!);