first commit

Packages/com.singularitygroup.hotreload/Editor/Helpers/EditorWindowHelper.cs

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+using System;
+using System.Text.RegularExpressions;
+using UnityEngine;
+using System.Threading.Tasks;
+using UnityEditor;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace SingularityGroup.HotReload.Editor {
+    internal static class EditorWindowHelper {
+        #if UNITY_2020_1_OR_NEWER
+        public static bool supportsNotifications = true;
+        #else
+        public static bool supportsNotifications = false;
+        #endif
+        
+        private static readonly Regex ValidEmailRegex = new Regex(@"^(?!\.)(""([^""\r\\]|\\[""\r\\])*""|"
+            + @"([-a-z0-9!#$%&'*+/=?^_`{|}~]|(?<!\.)\.)*)(?<!\.)"
+            + @"@[a-z0-9][\w\.-]*[a-z0-9]\.[a-z][a-z\.]*[a-z]$", RegexOptions.IgnoreCase);
+
+        public static bool IsValidEmailAddress(string email) {
+            return ValidEmailRegex.IsMatch(email);
+        }
+
+        public static bool IsHumanControllingUs() {
+            if (Application.isBatchMode) {
+                return false;
+            }
+            
+            var isCI = !string.IsNullOrEmpty(Environment.GetEnvironmentVariable("CI"));
+            return !isCI;
+        }
+
+        internal enum NotificationStatus {  
+            None,
+            Patching,
+            NeedsRecompile
+        }
+
+        private static readonly Dictionary<NotificationStatus, GUIContent> notificationContent = new Dictionary<NotificationStatus, GUIContent> {
+            { NotificationStatus.Patching, new GUIContent("[Hot Reload] Applying patches...")},
+            { NotificationStatus.NeedsRecompile, new GUIContent("[Hot Reload] Unsupported Changes detected! Recompiling...")},
+        };
+        
+        static Type gameViewT;
+        private static EditorWindow[] gameViewWindows {
+            get {
+                gameViewT = gameViewT ?? typeof(EditorWindow).Assembly.GetType("UnityEditor.GameView");
+                return Resources.FindObjectsOfTypeAll(gameViewT).Cast<EditorWindow>().ToArray();
+            }
+        }
+
+        private static EditorWindow[] sceneWindows {
+            get {
+                return Resources.FindObjectsOfTypeAll(typeof(SceneView)).Cast<EditorWindow>().ToArray();
+            }
+        }
+
+        private static EditorWindow[] notificationWindows {
+            get {
+                return gameViewWindows.Concat(sceneWindows).ToArray();
+            }
+        }
+
+        static NotificationStatus lastNotificationStatus;
+        private static DateTime? latestNotificationStartedAt;
+        private static bool notificationShownRecently => latestNotificationStartedAt != null && DateTime.UtcNow - latestNotificationStartedAt < TimeSpan.FromSeconds(1);
+        internal static void ShowNotification(NotificationStatus notificationType, float maxDuration = 3) {
+            // Patch status goes from Unsupported changes to patching rapidly when making unsupported change
+            // patching also shows right before unsupported changes sometimes 
+            // so we don't override NeedsRecompile notification ever
+            bool willOverrideNeedsCompileNotification = notificationType != NotificationStatus.NeedsRecompile && notificationShownRecently || lastNotificationStatus == NotificationStatus.NeedsRecompile && notificationShownRecently;
+            if (!supportsNotifications || willOverrideNeedsCompileNotification) {
+                return;
+            }
+
+            foreach (EditorWindow notificationWindow in notificationWindows) {
+                notificationWindow.ShowNotification(notificationContent[notificationType], maxDuration);
+                notificationWindow.Repaint();
+            }
+            latestNotificationStartedAt = DateTime.UtcNow;
+            lastNotificationStatus = notificationType;
+        }
+
+        internal static void RemoveNotification() {
+            if (!supportsNotifications) {
+                return;
+            }
+            // only patching notifications should be removed after showing less than 1 second
+            if (notificationShownRecently && lastNotificationStatus != NotificationStatus.Patching) {
+                return;
+            }
+            foreach (EditorWindow notificationWindow in notificationWindows) {                
+                notificationWindow.RemoveNotification(); 
+                notificationWindow.Repaint();
+            }   
+            latestNotificationStartedAt = null;    
+            lastNotificationStatus = NotificationStatus.None;
+        }
+    }
+}