更新

ShrlAlgoToolkit.Revit/Assists/RevitCommandEndedMonitor.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using Autodesk.Revit.UI;
+using Autodesk.Revit.UI.Events;
+
+namespace ShrlAlgoToolkit.Revit.Assists
+{
+    /// <summary>
+    /// UiApplication.PostCommand 结束事件监视器
+    /// </summary>
+    ///<example>
+    /// <c>RevitCommandEndedMonitor revitCommandEndedMonitor = new RevitCommandEndedMonitor(UiApplication);
+    /// revitCommandEndedMonitor.CommandEnded += OnCommandEnded;
+    /// var command = RevitCommandId.LookupPostableCommandId(PostableCommand.TypeProperties);
+    /// UiApplication.PostCommand(command);</c>
+    /// </example>
+    internal class RevitCommandEndedMonitor
+    {
+        private readonly UIApplication _revitUiApplication;
+
+        private bool _initializingCommandMonitor;
+
+        public event EventHandler CommandEnded;
+
+        public RevitCommandEndedMonitor(UIApplication revituiApplication)
+        {
+            _revitUiApplication = revituiApplication;
+
+            _initializingCommandMonitor = true;
+
+            _revitUiApplication.Idling += OnRevitUiApplicationIdling;
+        }
+
+        private void OnRevitUiApplicationIdling(object sender, IdlingEventArgs idlingEventArgs)
+        {
+            if (_initializingCommandMonitor)
+            {
+                _initializingCommandMonitor = false;
+                return;
+            }
+
+            _revitUiApplication.Idling -= OnRevitUiApplicationIdling;
+
+            OnCommandEnded();
+        }
+
+        protected virtual void OnCommandEnded()
+        {
+            CommandEnded?.Invoke(this, EventArgs.Empty);
+        }
+    }
+}