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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Entities;
using Tango.Core.Commands;
using Tango.Integration.Operation;
using Tango.PPC.Common;
using Tango.PPC.Common.Navigation;
using Tango.PPC.Jobs.AppBarItems;
using Tango.PPC.Jobs.AppButtons;
using Tango.PPC.Jobs.Dialogs;
using Tango.PPC.Jobs.NavigationObjects;
using Tango.PPC.Jobs.Views;
namespace Tango.PPC.Jobs.ViewModels
{
/// <summary>
/// Represents the job progress view model.
/// </summary>
/// <seealso cref="Tango.PPC.Common.PPCViewModel" />
public class JobProgressViewVM : PPCViewModel
{
private StopPrintingButton _stop_job_btn;
private JobHandler _handler;
#region Properties
private Job _job;
/// <summary>
/// Gets or sets the job.
/// </summary>
public Job Job
{
get { return _job; }
set { _job = value; RaisePropertyChangedAuto(); }
}
private RunningJobStatus _runningJobStatus;
/// <summary>
/// Gets or sets the running job status.
/// </summary>
public RunningJobStatus RunningJobStatus
{
get { return _runningJobStatus; }
set { _runningJobStatus = value; RaisePropertyChangedAuto(); }
}
#endregion
#region Commands
/// <summary>
/// Gets or sets the go to job command.
/// </summary>
/// <value>
/// The go to job command.
/// </value>
public RelayCommand GoToJobCommand { get; set; }
#endregion
public JobProgressViewVM()
{
_stop_job_btn = new StopPrintingButton();
_stop_job_btn.Pressed += _stop_job_btn_Pressed;
GoToJobCommand = new RelayCommand(GoToJob);
}
private void _stop_job_btn_Pressed()
{
if (_handler != null)
{
_handler.Cancel();
}
}
private void GoToJob()
{
NavigationManager.NavigateWithObject<JobsModule, JobView, JobNavigationObject>(new JobNavigationObject() { Job = _handler.Job });
NavigationManager.ClearHistoryExcept<JobsView>();
}
#region Override Methods
/// <summary>
/// Called when the application has been started.
/// </summary>
public override void OnApplicationStarted()
{
MachineProvider.MachineOperator.PrintingStarted += MachineOperator_PrintingStarted;
}
/// <summary>
/// Called when the navigation system has navigated from this VM view.
/// </summary>
public override void OnNavigatedFrom()
{
base.OnNavigatedFrom();
if (MachineProvider.MachineOperator.IsPrinting && _handler != null && !_handler.IsCanceled)
{
NotificationProvider.PushAppBarItem<JobProgressAppBarItem>().Pressed += (_, __) =>
{
NotificationProvider.CurrentAppBarItem.Close();
NavigationManager.NavigateTo<JobsModule>(nameof(JobProgressView));
};
}
}
/// <summary>
/// Called when the navigation system has navigated to this VM view.
/// </summary>
public override void OnNavigatedTo()
{
base.OnNavigatedTo();
if (NotificationProvider.HasAppBarItem && NotificationProvider.CurrentAppBarItem is JobProgressAppBarItem)
{
NotificationProvider.CurrentAppBarItem.Close();
}
if (!_handler.Status.IsFailed)
{
_stop_job_btn.Push();
}
}
#endregion
#region Event Handlers
/// <summary>
/// Handles the PrintingStarted event of the MachineOperator.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="PrintingEventArgs"/> instance containing the event data.</param>
private void MachineOperator_PrintingStarted(object sender, PrintingEventArgs e)
{
_handler = e.JobHandler;
Job = e.Job;
e.JobHandler.StatusChanged += JobHandler_StatusChanged;
e.JobHandler.SpoolChangeRequired += JobHandler_SpoolChangeRequired;
e.JobHandler.Stopped += JobHandler_Stopped;
e.JobHandler.Failed += JobHandler_Failed;
_stop_job_btn.Push();
}
private void JobHandler_Failed(object sender, Exception ex)
{
if (ex is InsufficientLiquidQuantityException)
{
InvokeUI(async () =>
{
await NotificationProvider.ShowDialog(new InsufficientLiquidQuantityViewVM(ex as InsufficientLiquidQuantityException));
if (IsVisible)
{
await NavigationManager.NavigateBack();
}
});
}
}
/// <summary>
/// Handles the SpoolChangeRequired event of the JobHandler.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="SpoolChangeRequiredEventArgs"/> instance containing the event data.</param>
private void JobHandler_SpoolChangeRequired(object sender, SpoolChangeRequiredEventArgs e)
{
InvokeUI(async () =>
{
if ((await NotificationProvider.ShowDialog(new SpoolChangeViewVM(e))).DialogResult)
{
e.Confirm();
}
else
{
e.Abort();
}
});
}
/// <summary>
/// Handles the Stopped event of the JobHandler.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void JobHandler_Stopped(object sender, EventArgs e)
{
if (NotificationProvider.HasAppBarItem && NotificationProvider.CurrentAppBarItem is JobProgressAppBarItem)
{
NotificationProvider.CurrentAppBarItem.Close();
}
_stop_job_btn.Pop();
}
/// <summary>
/// Handles the JobHandler StatusChanged event.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
private void JobHandler_StatusChanged(object sender, RunningJobStatus e)
{
InvokeUI(() =>
{
RunningJobStatus = e;
});
}
#endregion
}
}
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