Created unity project

3D FPS/Library/PackageCache/com.unity.collab-proxy@2.6.0/Editor/UI/Tree/TableViewOperations.cs

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+using System.Collections.Generic;
+
+using UnityEditor.IMGUI.Controls;
+
+namespace Unity.PlasticSCM.Editor.UI.Tree
+{
+    internal static class TableViewOperations
+    {
+        internal static int GetFirstSelectedRow(
+            TreeView treeView)
+        {
+            IList<int> selectedIds = treeView.GetSelection();
+
+            if (selectedIds.Count == 0)
+                return -1;
+
+            return selectedIds[0];
+        }
+
+        internal static void SelectFirstRow(
+            TreeView treeView)
+        {
+            int rowCount = treeView.GetRows().Count;
+
+            if (rowCount == 0)
+                return;
+
+            SetSelectionAndScroll(
+                treeView, new List<int> { 1 });
+        }
+
+        internal static void SelectDefaultRow(
+            TreeView treeView, int defaultRow)
+        {
+            int rowCount = treeView.GetRows().Count;
+
+            if (defaultRow == -1 || rowCount == 0)
+                return;
+
+            if (defaultRow >= rowCount)
+                defaultRow = rowCount - 1;
+
+            SetSelectionAndScroll(
+                treeView, new List<int> { defaultRow });
+        }
+
+        internal static void SetSelectionAndScroll(
+            TreeView treeView, List<int> idsToSelect)
+        {
+            treeView.SetSelection(
+                idsToSelect,
+                TreeViewSelectionOptions.FireSelectionChanged |
+                TreeViewSelectionOptions.RevealAndFrame);
+        }
+
+        internal static void ScrollToSelection(
+            TreeView treeView)
+        {
+            if (!treeView.HasSelection())
+                return;
+
+            int itemId = treeView.GetSelection()[0];
+
+            if (!IsVisible(itemId, treeView))
+                return;
+
+            treeView.FrameItem(itemId);
+        }
+
+        static bool IsVisible(int id, TreeView treeView)
+        {
+            foreach (TreeViewItem item in treeView.GetRows())
+            {
+                if (item.id == id)
+                    return true;
+            }
+
+            return false;
+        }
+    }
+}