0.1.0: Added favorites window

Editor/Favorites/Window/EditorFavoritesPopupWindowAddFolder.cs

@@ -0,0 +1,47 @@
+using UnityEditor;
+using UnityEngine;
+
+namespace Game.NavigationTool.Editor
+{
+    internal sealed class EditorFavoritesPopupWindowAddFolder : PopupWindowContent
+    {
+        private readonly Favorites.Entry toParent;
+        private string inputStr = string.Empty;
+
+        public static void Show(Vector2 mousePosition, Favorites.Entry toParent)
+        {
+            var rect = new Rect(mousePosition.x - 200.0f, mousePosition.y, 0.0f, 0.0f);
+            PopupWindow.Show(rect, new EditorFavoritesPopupWindowAddFolder(toParent));
+        }
+
+        private EditorFavoritesPopupWindowAddFolder(Favorites.Entry toParent)
+        {
+            this.toParent = toParent;
+        }
+        
+        public override void OnGUI(Rect rect)
+        {
+            bool isReturn = Event.current.type == EventType.KeyDown && Event.current.keyCode == KeyCode.Return;
+            bool isEscape = Event.current.type == EventType.KeyDown && Event.current.keyCode == KeyCode.Escape;
+
+            GUI.SetNextControlName("TextField");
+            inputStr = GUI.TextField(rect, inputStr);
+            GUI.FocusControl("TextField");
+            
+            if (isReturn && !string.IsNullOrEmpty(inputStr))
+            {
+                Favorites favorites = FavoritesUtility.GetFavorites();
+                favorites.AddFolder(inputStr, toParent);
+                editorWindow.Close();
+            }
+            
+            if (isEscape)
+                editorWindow.Close();
+        }
+
+        public override Vector2 GetWindowSize()
+        {
+            return new Vector2(200.0f, EditorGUIUtility.singleLineHeight);
+        }
+    }
+}