1 files changed, 55 insertions, 0 deletions
diff --git a/MediaBrowser.Common/ScheduledTasks/SystemEventTrigger.cs b/MediaBrowser.Common/ScheduledTasks/SystemEventTrigger.cs
new file mode 100644
index 000000000..3075a8587
--- /dev/null
+++ b/MediaBrowser.Common/ScheduledTasks/SystemEventTrigger.cs
@@ -0,0 +1,55 @@
+using MediaBrowser.Model.Tasks;
+using Microsoft.Win32;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.ScheduledTasks
+{
+    /// <summary>
+    /// Class SystemEventTrigger
+    /// </summary>
+    public class SystemEventTrigger : BaseTaskTrigger
+    {
+        /// <summary>
+        /// Gets or sets the system event.
+        /// </summary>
+        /// <value>The system event.</value>
+        public SystemEvent SystemEvent { get; set; }
+
+        /// <summary>
+        /// Stars waiting for the trigger action
+        /// </summary>
+        protected internal override void Start()
+        {
+            switch (SystemEvent)
+            {
+                case SystemEvent.WakeFromSleep:
+                    SystemEvents.PowerModeChanged += SystemEvents_PowerModeChanged;
+                    break;
+            }
+        }
+
+        /// <summary>
+        /// Stops waiting for the trigger action
+        /// </summary>
+        protected internal override void Stop()
+        {
+            SystemEvents.PowerModeChanged -= SystemEvents_PowerModeChanged;
+        }
+
+        /// <summary>
+        /// Handles the PowerModeChanged event of the SystemEvents control.
+        /// </summary>
+        /// <param name="sender">The source of the event.</param>
+        /// <param name="e">The <see cref="PowerModeChangedEventArgs" /> instance containing the event data.</param>
+        async void SystemEvents_PowerModeChanged(object sender, PowerModeChangedEventArgs e)
+        {
+            if (e.Mode == PowerModes.Resume && SystemEvent == SystemEvent.WakeFromSleep)
+            {
+                // This value is a bit arbitrary, but add a delay to help ensure network connections have been restored before running the task
+                await Task.Delay(5000).ConfigureAwait(false);
+
+                OnTriggered();
+            }
+        }
+    }
+}