Created unity project

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

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+using System;
+
+using UnityEditor;
+using UnityEngine;
+
+namespace Unity.PlasticSCM.Editor.UI
+{
+    internal static class DrawActionButtonWithMenu
+    {
+        internal static void For(string buttonText, Action buttonAction, GenericMenu actionMenu)
+        {
+            // Action button
+            GUIContent buttonContent = new GUIContent(buttonText);
+
+            GUIStyle buttonStyle = new GUIStyle(EditorStyles.miniButtonLeft);
+            buttonStyle.stretchWidth = false;
+
+            float width = MeasureMaxWidth.ForTexts(buttonStyle, buttonText);
+
+            Rect rt = GUILayoutUtility.GetRect(
+                buttonContent,
+                buttonStyle,
+                GUILayout.MinWidth(width),
+                GUILayout.MaxWidth(width));
+
+            if (GUI.Button(rt, buttonContent, buttonStyle))
+            {
+                buttonAction();
+            }
+
+            // Menu dropdown
+            GUIStyle dropDownStyle = new GUIStyle(EditorStyles.miniButtonRight);
+
+            GUIContent dropDownContent = new GUIContent(string.Empty, Images.GetDropDownIcon());
+
+            Rect dropDownRect = GUILayoutUtility.GetRect(
+                dropDownContent,
+                dropDownStyle,
+                GUILayout.MinWidth(DROPDOWN_BUTTON_WIDTH),
+                GUILayout.MaxWidth(DROPDOWN_BUTTON_WIDTH));
+
+            if (EditorGUI.DropdownButton(dropDownRect, dropDownContent, FocusType.Passive, dropDownStyle))
+            {
+                actionMenu.DropDown(dropDownRect);
+            }
+        }
+
+        const int DROPDOWN_BUTTON_WIDTH = 16;
+    }
+}