84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
using MediaBrowser.Model.Events;
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using MediaBrowser.Model.Tasks;
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using Microsoft.Win32;
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using System;
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using System.Threading.Tasks;
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namespace MediaBrowser.Common.ScheduledTasks
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{
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/// <summary>
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/// Class SystemEventTrigger
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/// </summary>
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public class SystemEventTrigger : ITaskTrigger
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{
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/// <summary>
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/// Gets or sets the system event.
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/// </summary>
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/// <value>The system event.</value>
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public SystemEvent SystemEvent { get; set; }
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/// <summary>
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/// Gets the execution properties of this task.
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/// </summary>
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/// <value>
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/// The execution properties of this task.
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/// </value>
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public TaskExecutionOptions TaskOptions { get; set; }
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/// <summary>
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/// Stars waiting for the trigger action
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/// </summary>
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/// <param name="lastResult">The last result.</param>
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/// <param name="isApplicationStartup">if set to <c>true</c> [is application startup].</param>
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public void Start(TaskResult lastResult, bool isApplicationStartup)
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{
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switch (SystemEvent)
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{
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case SystemEvent.WakeFromSleep:
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SystemEvents.PowerModeChanged += SystemEvents_PowerModeChanged;
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break;
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}
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}
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/// <summary>
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/// Stops waiting for the trigger action
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/// </summary>
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public void Stop()
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{
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SystemEvents.PowerModeChanged -= SystemEvents_PowerModeChanged;
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}
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/// <summary>
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/// Handles the PowerModeChanged event of the SystemEvents control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="PowerModeChangedEventArgs" /> instance containing the event data.</param>
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async void SystemEvents_PowerModeChanged(object sender, PowerModeChangedEventArgs e)
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{
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if (e.Mode == PowerModes.Resume && SystemEvent == SystemEvent.WakeFromSleep)
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{
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// This value is a bit arbitrary, but add a delay to help ensure network connections have been restored before running the task
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await Task.Delay(10000).ConfigureAwait(false);
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OnTriggered();
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}
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}
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/// <summary>
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/// Occurs when [triggered].
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/// </summary>
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public event EventHandler<GenericEventArgs<TaskExecutionOptions>> Triggered;
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/// <summary>
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/// Called when [triggered].
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/// </summary>
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private void OnTriggered()
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{
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if (Triggered != null)
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{
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Triggered(this, new GenericEventArgs<TaskExecutionOptions>(TaskOptions));
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}
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}
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}
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}
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