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using System;
using System.Diagnostics;
using System.Threading.Tasks;
using Microsoft.WebMatrix.Extensibility;
namespace NuGet.WebMatrix
{
/// <summary>
/// An ICommandTarget implementation for the NuGet gallery
/// </summary>
internal class NuGetCommandTarget : ICommandTarget
{
public NuGetCommandTarget(ModuleGlobals globals)
{
this.Globals = globals;
this.OpenNuGetGalleryCommand = this.Globals.CommandManager.AddCommand(
this,
NuGetCommands.OpenNuGetGalleryCommandId,
Resources.GalleryCommandName,
Resources.GalleryCommandTooltip,
Resources.nuget_32.ConvertToImageSource(),
Resources.nuget_32.ConvertToImageSource());
}
public Microsoft.WebMatrix.Core.Command OpenNuGetGalleryCommand
{
get;
private set;
}
private IHostCommands Commands
{
get
{
return this.Globals.Host.HostCommands;
}
}
private IWebSite CurrentSite
{
get
{
return this.Host == null ? null : this.Host.WebSite;
}
}
private ModuleGlobals Globals
{
get;
set;
}
private IWebMatrixHost Host
{
get
{
return this.Globals.Host;
}
}
public CommandStatus CanExecute(ICommandId commandId, object parameter)
{
if (commandId == null || commandId.GroupId != NuGetCommands.GroupId)
{
return CommandStatus.UnSupported;
}
if (commandId == NuGetCommands.OpenNuGetGalleryCommandId)
{
return CommandStatus.EnabledAndSupported;
}
else
{
Debug.Fail("Unknown CommandId detected.");
return CommandStatus.UnSupported;
}
}
public void Execute(ICommandId commandId, object parameter)
{
if (commandId == null || commandId.GroupId != NuGetCommands.GroupId)
{
return;
}
if (commandId == NuGetCommands.OpenNuGetGalleryCommandId)
{
this.OpenNuGetGallery();
}
}
private void OpenNuGetGallery()
{
try
{
INuGetGalleryDescriptor descriptor = GalleryDescriptors.NuGet;
Task<bool?> galleryTask = this.Globals.Gallery.ShowGallery(descriptor, this.Host.WebSite.Path);
galleryTask.ContinueWith((task) =>
{
Exception exception = null;
if (task.IsFaulted)
{
exception = task.Exception.Flatten().InnerException;
}
else
{
try
{
// Send "Refresh" command to update the file tree
var refreshCommand = this.Host.HostCommands.GetCommand(CommonCommandIds.GroupId, (int)CommonCommandIds.Ids.Refresh);
// Passing true to the command forces a refresh from the root of the tree
if (refreshCommand.CanExecute(true))
{
refreshCommand.Execute(true);
}
}
catch (Exception ex)
{
exception = ex;
}
}
if (exception != null)
{
this.Host.ShowExceptionMessage(Resources.String_Error, Resources.String_ErrorOccurred, exception);
}
},
NuGetExtension.GetCurrentTaskScheduler());
}
catch (Exception ex)
{
this.Host.ShowExceptionMessage(
Resources.String_Error,
Resources.String_ErrorOccurred,
ex);
}
}
}
}
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