feat: manually copied scripts from "feat/display-settings-in-preferen…

…ces" branch because of repository folder structure changes (package places in root)

Editor/UIToolkit/Controls/TabController.cs

@@ -0,0 +1,122 @@
+#if UNITY_2019_4_OR_NEWER
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using StansAssets.Foundation.UIElements;
+using UnityEngine.Assertions;
+using UnityEngine.UIElements;
+
+namespace StansAssets.Plugins.Editor
+{
+    /// <summary>
+    /// Tab controller based on <see cref="ButtonStrip"/> to switch between tabs
+    /// and <see cref="ScrollView"/> to display their contents
+    /// </summary>
+    public class TabController
+    {
+        readonly Dictionary<string, VisualElement> m_Tabs = new Dictionary<string, VisualElement>();
+
+        readonly ButtonStrip m_TabsButtons;
+        readonly ScrollView m_TabsContainer;
+
+        /// <summary>
+        /// Available tabs' labels.
+        /// </summary>
+        public IEnumerable<string> Tabs => m_Tabs.Keys;
+
+        /// <summary>
+        /// Active tab label from <see cref="Tabs"/>.
+        /// </summary>
+        public string ActiveTab => m_TabsButtons.Value;
+
+        /// <summary>
+        /// This constructor will looking for already existing elements:
+        /// <see cref="ButtonStrip"/> (without name) and <see cref="ScrollView"/> named "tabs-container"
+        /// The purpose of this is to support <see cref="PackageSettingsWindow{TWindow}"/>.
+        /// </summary>
+        /// <param name="root">Element that contains <see cref="ButtonStrip"/> and <see cref="ScrollView"/> named tabs-container</param>
+        public TabController(VisualElement root)
+        {
+            m_TabsButtons = root.Q<ButtonStrip>();
+            m_TabsContainer = root.Q<ScrollView>("tabs-container");
+
+            Init();
+        }
+
+        /// <summary>
+        /// Add tab to the window top bar.
+        /// </summary>
+        /// <param name="label">Tab label.</param>
+        /// <param name="content">Tab content.</param>
+        /// <exception cref="ArgumentException">Will throw tab with the same label was already added.</exception>
+        public void AddTab(string label, VisualElement content)
+        {
+            if (!m_Tabs.ContainsKey(label))
+            {
+                m_TabsButtons.AddChoice(label, label);
+                m_Tabs.Add(label, content);
+                content.viewDataKey = label;
+            }
+            else
+            {
+                throw new ArgumentException($"Tab '{label}' already added", nameof(label));
+            }
+        }
+
+        /// <summary>
+        /// Activate tab by label
+        /// </summary>
+        /// <param name="label">Early specified tab label</param>
+        public void ActivateTab(string label)
+        {
+            if (!m_Tabs.ContainsKey(label))
+            {
+                return;
+            }
+
+            m_TabsButtons.SetValue(label);
+        }
+
+        /// <summary>
+        /// Set the flexible growth property of tabs content container
+        /// </summary>
+        /// <param name="styleFloat"></param>
+        public void ContentContainerFlexGrow(StyleFloat styleFloat)
+        {
+            m_TabsContainer.contentContainer.style.flexGrow = styleFloat;
+        }
+
+        /// <summary>
+        /// Refresh current tab
+        /// </summary>
+        public void RefreshActiveTab()
+        {
+            if (string.IsNullOrEmpty(ActiveTab))
+            {
+                return;
+            }
+
+            foreach (var tab in m_Tabs)
+            {
+                tab.Value.RemoveFromHierarchy();
+            }
+
+            var element = m_Tabs.First(i => i.Key.Equals(m_TabsButtons.Value)).Value;
+            m_TabsContainer.Add(element);
+        }
+
+        void Init()
+        {
+            Assert.IsNotNull(m_TabsButtons);
+            Assert.IsNotNull(m_TabsContainer);
+
+            m_TabsButtons.CleanUp();
+            m_TabsButtons.OnButtonClick += RefreshActiveTab;
+
+            RefreshActiveTab();
+        }
+    }
+}
+
+#endif

Editor/UIToolkit/Extensions/ListViewExtentions.cs

@@ -0,0 +1,20 @@
+using UnityEngine.UIElements;
+
+namespace StansAssets.Plugins.Editor
+{
+    public static class ListViewExtensions
+    {
+        /// <summary>
+        /// Rebuild/refresh ListView in compatible mode with Unity 2019/2021 editor
+        /// </summary>
+        /// <param name="listView"></param>
+        public static void RebuildInCompatibleMode(this ListView listView)
+        {
+#if UNITY_2019_4_40
+            listView.Refresh();      
+#else
+            listView.Rebuild();
+#endif
+        }
+    }
+}

Editor/UIToolkit/PreferencesWindow/AboutPreferencesWindow.cs

@@ -0,0 +1,30 @@
+#if UNITY_2019_4_OR_NEWER
+
+using JetBrains.Annotations;
+using StansAssets.Foundation.Editor;
+using UnityEditor;
+using UnityEngine.UIElements;
+using PackageInfo = UnityEditor.PackageManager.PackageInfo;
+
+namespace StansAssets.Plugins.Editor
+{
+    [UsedImplicitly]
+    sealed class AboutPreferencesWindow : PackagePreferencesWindow
+    {
+        protected override PackageInfo GetPackageInfo()
+            => PackageManagerUtility.GetPackageInfo(PluginsDevKitPackage.Name);
+
+        protected override string SettingsPath => $"{PluginsDevKitPackage.RootMenu}/{GetPackageInfo().displayName}";
+        protected override SettingsScope Scope => SettingsScope.User;
+
+        protected override void OnActivate(string searchContext, VisualElement rootElement)
+        {
+            ContentContainerFlexGrow(1);
+            AddTab("About", new AboutTab());
+        }
+
+        protected override void OnDeactivate() { }
+    }
+}
+
+#endif

Editor/UIToolkit/PreferencesWindow/PackagePreferencesWindow.cs

@@ -0,0 +1,148 @@
+#if UNITY_2019_4_OR_NEWER
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using StansAssets.Foundation.Editor;
+using UnityEditor;
+using UnityEditor.UIElements;
+using UnityEngine.UIElements;
+
+namespace StansAssets.Plugins.Editor
+{
+    /// <summary>
+    /// Base class for Plugin Preferences Window
+    /// </summary>
+    public abstract class PackagePreferencesWindow
+    {
+        TabController m_TabController;
+
+        /// <summary>
+        /// Structure describing a Unity Package.
+        /// </summary>
+        protected abstract UnityEditor.PackageManager.PackageInfo GetPackageInfo();
+
+
+        /// <summary>
+        /// Gets Path used to place the SettingsProvider in the tree view of the Preferences or Project Settings window.
+        /// The path should be unique among all other settings paths and should use "/" as its separator.
+        /// </summary>
+        protected abstract string SettingsPath { get; }
+
+        /// <summary>
+        /// Gets the Scope of the SettingsProvider. The Scope determines whether the SettingsProvider appears
+        /// in the Preferences window (SettingsScope.User) or the Settings window (SettingsScope.Project).
+        /// </summary>
+        protected abstract SettingsScope Scope { get; }
+
+        /// <summary>
+        /// Add tab to the window top bar.
+        /// </summary>
+        /// <param name="label">Tab label.</param>
+        /// <param name="content">Tab content.</param>
+        /// <exception cref="ArgumentException">Will throw tab with the same label was already added.</exception>
+        protected void AddTab(string label, VisualElement content)
+        {
+            m_TabController.AddTab(label, content);
+        }
+
+        /// <summary>
+        /// Activate tab by name
+        /// </summary>
+        /// <param name="name">Early specified tab name</param>
+        protected void ActivateTab(string name)
+        {
+            m_TabController.ActivateTab(name);
+        }
+
+        /// <summary>
+        /// Set the flexible growth property of tabs content container
+        /// </summary>
+        /// <param name="styleFloat"></param>
+        protected void ContentContainerFlexGrow(StyleFloat styleFloat)
+        {
+            m_TabController.ContentContainerFlexGrow(styleFloat);
+        }
+
+        /// <summary>
+        /// Overrides SettingsProvider.OnActivate.
+        /// </summary>
+        protected abstract void OnActivate(string searchContext, VisualElement rootElement);
+
+        /// <summary>
+        /// Overrides SettingsProvider.OnDeactivate.
+        /// </summary>
+        protected abstract void OnDeactivate();
+
+        void OnActivateWindow(string searchContext, VisualElement rootElement)
+        {
+            UIToolkitEditorUtility.CloneTreeAndApplyStyle(rootElement,
+                $"{PluginsDevKitPackage.UIToolkitPath}/SettingsWindow/PackageSettingsWindow");
+
+            // Hide search bar from PackageSettingsWindow. In preferences we already have search bar
+            // and it's value in "searchContext" parameter
+            var searchBar = rootElement.Q<ToolbarSearchField>();
+            if (searchBar != null)
+            {
+                searchBar.style.visibility = Visibility.Hidden;
+            }
+
+            var packageInfo = GetPackageInfo();
+            rootElement.Q<Label>("display-name").text = packageInfo.displayName;
+            rootElement.Q<Label>("description").text = packageInfo.description;
+            rootElement.Q<Label>("version").text = $"Version: {packageInfo.version}";
+
+            m_TabController = new TabController(rootElement);
+        }
+
+        void OnActivateHandler(string searchContext, VisualElement rootElement)
+        {
+            OnActivate(searchContext, rootElement);
+
+            EditorApplication.delayCall += () =>
+            {
+                m_TabController.RefreshActiveTab();
+            };
+        }
+
+        SettingsProvider ConstructSettingsProvider()
+        {
+            var packageInfo = GetPackageInfo();
+            var settingsProvider = new SettingsProvider(SettingsPath, Scope, packageInfo.keywords)
+            {
+                label = packageInfo.displayName,
+            };
+
+            settingsProvider.activateHandler += OnActivateWindow;
+            settingsProvider.activateHandler += OnActivateHandler;
+            settingsProvider.deactivateHandler += OnDeactivate;
+
+            return settingsProvider;
+        }
+
+        [SettingsProviderGroup]
+        static SettingsProvider[] RegisterSettingsProviderGroup()
+        {
+            var baseType = typeof(PackagePreferencesWindow);
+            var group = new List<SettingsProvider>();
+
+            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
+            {
+                var derivedTypes = assembly.GetTypes()
+                    .Where(t => baseType.IsAssignableFrom(t) && t != baseType)
+                    .ToArray();
+
+                foreach (var derivedType in derivedTypes)
+                {
+                    var instance = (PackagePreferencesWindow)Activator.CreateInstance(derivedType);
+                    var settingsProvider = instance.ConstructSettingsProvider();
+                    group.Add(settingsProvider);
+                }
+            }
+
+            return group.ToArray();
+        }
+    }
+}
+
+#endif