/// <summary>
/// Saves the existing project.
/// </summary>
/// <param name="projectFacade">The object that contains the methods that allow interaction with the project system.</param>
/// <param name="persistenceInformation">The object that describes how the project should be persisted.</param>
/// <param name="timer">The function that creates and stores timing intervals.</param>
private static void OnSaveProject(
ILinkToProjects projectFacade,
IPersistenceInformation persistenceInformation,
Func <string, IDisposable> timer)
{
// If there is no facade then we're in design mode or something
// else weird.
if (projectFacade == null)
{
return;
}
if (!projectFacade.HasActiveProject())
{
return;
}
using (timer("Saving project"))
{
var project = projectFacade.ActiveProject();
project.SaveProject(persistenceInformation);
projectFacade.ActiveProject().History.Mark(Resources.SaveProjectCommand_HistoryMark);
}
}
/// <summary>
/// Called when the last undo action should be redone.
/// </summary>
/// <param name="projectFacade">
/// The object that contains the methods that allow interaction with
/// the project system.
/// </param>
/// <param name="timer">The function that creates and stores timing intervals.</param>
private static void OnRedo(ILinkToProjects projectFacade, Func <string, IDisposable> timer)
{
// If there is no facade then we're in design mode or something
// else weird.
if (projectFacade == null)
{
return;
}
if (!projectFacade.HasActiveProject())
{
return;
}
using (timer("Redoing change"))
{
var project = projectFacade.ActiveProject();
if (project.History.CanRollForward)
{
var markers = project.History.MarkersInTheFuture();
var markerToRollBackTo = markers.FirstOrDefault(m => !m.Equals(project.History.Current));
if (markerToRollBackTo != null)
{
project.History.RollForwardTo(markerToRollBackTo);
}
}
}
}
private static bool CanRedo(ILinkToProjects projectFacade)
{
// If there is no facade then we're in design mode or something
// else weird.
if (projectFacade == null)
{
return(false);
}
if (!projectFacade.HasActiveProject())
{
return(false);
}
var project = projectFacade.ActiveProject();
if (project.History.CanRollForward)
{
var markers = project.History.MarkersInTheFuture();
var markerToRollBackTo = markers.FirstOrDefault(m => !m.Equals(project.History.Current));
return(markerToRollBackTo != null);
}
return(false);
}
/// <summary>
/// Called when the dataset should be activated.
/// </summary>
/// <param name="projectFacade">The object that contains the methods that allow interaction with the project system.</param>
/// <param name="dataset">The dataset.</param>
/// <param name="selector">
/// The function that is used to select the most suitable machine to distribute the dataset to.
/// </param>
/// <param name="timer">The function that creates and stores timing intervals.</param>
private static void OnActivate(
ILinkToProjects projectFacade,
DatasetFacade dataset,
Func <IEnumerable <DistributionSuggestion>, SelectedProposal> selector,
Func <string, IDisposable> timer)
{
// If there is no application facade, then we're in
// designer mode, or something else silly.
if (dataset == null)
{
return;
}
if (dataset.IsActivated || !dataset.CanActivate)
{
return;
}
using (timer("Loading dataset onto machine"))
{
var source = new CancellationTokenSource();
dataset.Activate(
DistributionLocations.All,
selector,
source.Token)
.ContinueWith(t => source.Dispose());
projectFacade.ActiveProject().History.Mark();
}
}
/// <summary>
/// Returns the currently active project.
/// </summary>
/// <returns>
/// The currently active project.
/// </returns>
public ScriptBackEndProjectFacade ActiveProject()
{
if (m_Current == null)
{
m_Current = new ScriptBackEndProjectFacade(m_Projects.ActiveProject());
}
return(m_Current);
}
/// <summary>
/// Called when a new child dataset should be added.
/// </summary>
/// <param name="projectFacade">The object that contains the methods that allow interaction with the project system.</param>
/// <param name="datasetFacade">The object that contains the methods that allow interaction with a dataset.</param>
/// <param name="timer">The function that creates and stores timing intervals.</param>
private static void OnAddNewChild(ILinkToProjects projectFacade, DatasetFacade datasetFacade, Func <string, IDisposable> timer)
{
// If there is no dataset facade, then we're in
// designer mode, or something else silly.
if (datasetFacade == null)
{
return;
}
using (timer("Add dataset to graph"))
{
datasetFacade.AddChild();
projectFacade.ActiveProject().History.Mark();
}
}
private static bool ShouldSaveProject(ILinkToProjects projectFacade)
{
// If there is no facade then we're in design mode or something
// else weird.
if (projectFacade == null)
{
return(false);
}
if (!projectFacade.HasActiveProject())
{
return(false);
}
var project = projectFacade.ActiveProject();
return(project.ShouldSaveProject());
}
/// <summary>
/// Called when the dataset should be deactivated.
/// </summary>
/// <param name="projectFacade">The object that contains the methods that allow interaction with the project system.</param>
/// <param name="dataset">The dataset.</param>
/// <param name="timer">The function that creates and stores timing intervals.</param>
private static void OnDeactivate(ILinkToProjects projectFacade, DatasetFacade dataset, Func<string, IDisposable> timer)
{
// If there is no application facade, then we're in
// designer mode, or something else silly.
if (dataset == null)
{
return;
}
if (!dataset.IsActivated)
{
return;
}
using (timer("Unloading dataset"))
{
dataset.Deactivate();
projectFacade.ActiveProject().History.Mark();
}
}