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106 lines
4 KiB
C#
106 lines
4 KiB
C#
using MediaBrowser.Model.Updates;
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using System;
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using System.Deployment.Application;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.ClickOnce
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{
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/// <summary>
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/// Class ApplicationUpdateCheck
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/// </summary>
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public class ApplicationUpdateCheck
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{
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/// <summary>
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/// The _task completion source
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/// </summary>
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private TaskCompletionSource<CheckForUpdateResult> _taskCompletionSource;
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/// <summary>
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/// The _progress
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/// </summary>
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private IProgress<double> _progress;
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/// <summary>
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/// Checks for application update.
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/// </summary>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="progress">The progress.</param>
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/// <returns>Task{CheckForUpdateCompletedEventArgs}.</returns>
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/// <exception cref="System.InvalidOperationException">Current deployment is not a ClickOnce deployment</exception>
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public Task<CheckForUpdateResult> CheckForApplicationUpdate(CancellationToken cancellationToken, IProgress<double> progress)
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{
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if (!ApplicationDeployment.IsNetworkDeployed)
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{
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throw new InvalidOperationException("Current deployment is not network deployed.");
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}
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_progress = progress;
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_taskCompletionSource = new TaskCompletionSource<CheckForUpdateResult>();
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var deployment = ApplicationDeployment.CurrentDeployment;
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cancellationToken.Register(deployment.CheckForUpdateAsyncCancel);
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cancellationToken.ThrowIfCancellationRequested();
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deployment.CheckForUpdateCompleted += deployment_CheckForUpdateCompleted;
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deployment.CheckForUpdateProgressChanged += deployment_CheckForUpdateProgressChanged;
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deployment.CheckForUpdateAsync();
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return _taskCompletionSource.Task;
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}
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/// <summary>
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/// To the result.
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/// </summary>
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/// <param name="args">The <see cref="CheckForUpdateCompletedEventArgs" /> instance containing the event data.</param>
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/// <returns>CheckForUpdateResult.</returns>
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private CheckForUpdateResult ToResult(CheckForUpdateCompletedEventArgs args)
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{
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return new CheckForUpdateResult
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{
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AvailableVersion = args.AvailableVersion,
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IsUpdateAvailable = args.UpdateAvailable
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};
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}
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/// <summary>
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/// Handles the CheckForUpdateCompleted event of the deployment 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="CheckForUpdateCompletedEventArgs" /> instance containing the event data.</param>
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void deployment_CheckForUpdateCompleted(object sender, CheckForUpdateCompletedEventArgs e)
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{
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var deployment = ApplicationDeployment.CurrentDeployment;
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deployment.CheckForUpdateCompleted -= deployment_CheckForUpdateCompleted;
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deployment.CheckForUpdateProgressChanged -= deployment_CheckForUpdateProgressChanged;
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if (e.Error != null)
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{
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_taskCompletionSource.SetException(e.Error);
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}
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else if (e.Cancelled)
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{
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_taskCompletionSource.SetCanceled();
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}
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else
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{
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_taskCompletionSource.SetResult(ToResult(e));
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}
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}
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/// <summary>
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/// Handles the CheckForUpdateProgressChanged event of the deployment 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="DeploymentProgressChangedEventArgs" /> instance containing the event data.</param>
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void deployment_CheckForUpdateProgressChanged(object sender, DeploymentProgressChangedEventArgs e)
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{
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_progress.Report(e.ProgressPercentage);
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}
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}
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}
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