/// <summary>
/// Callback for when the user clicks on a breadcrumb element.
/// </summary>
/// <param name="graphToLoad">The graph to load.</param>
/// <param name="breadcrumbIndex">The index of the breadcrumb element clicked.</param>
protected virtual void OnBreadcrumbClick(OpenedGraph graphToLoad, int breadcrumbIndex)
{
if (graphToLoad.GetGraphAssetModel()?.FriendlyScriptName != null)
{
m_CommandDispatcher.Dispatch(new LoadGraphAssetCommand(graphToLoad.GetGraphAssetModelPath(), graphToLoad.AssetLocalId, m_GraphView.Window.PluginRepository,
graphToLoad.BoundObject, LoadGraphAssetCommand.LoadStrategies.KeepHistory, breadcrumbIndex));
}
}
/// <inheritdoc />
public override void ValidateAfterDeserialize()
{
base.ValidateAfterDeserialize();
if (!m_CurrentGraph.IsValid())
{
m_CurrentGraph = new OpenedGraph(null, null);
}
}
protected void BreadcrumbClickedEvent(int i)
{
var state = m_CommandDispatcher.State;
OpenedGraph graphToLoad = default;
var graphModels = state.WindowState.SubGraphStack;
if (i < graphModels.Count)
{
graphToLoad = graphModels[i];
}
OnBreadcrumbClick(graphToLoad, i);
}
/// <inheritdoc />
public override void ValidateAfterDeserialize()
{
base.ValidateAfterDeserialize();
// Check that all referenced graphs still exist (assets may have been deleted).
if (!m_CurrentGraph.IsValid())
{
m_CurrentGraph = new OpenedGraph(null, null);
}
if (!m_LastOpenedGraph.IsValid())
{
m_LastOpenedGraph = new OpenedGraph(null, null);
}
for (var i = 0; i < m_SubGraphStack.Count; i++)
{
if (!m_SubGraphStack[i].IsValid())
{
m_SubGraphStack[i] = new OpenedGraph(null, null);
}
}
}
/// <summary>
/// Default command handler.
/// </summary>
/// <param name="graphToolState">The state.</param>
/// <param name="command">The command.</param>
public static void DefaultCommandHandler(GraphToolState graphToolState, LoadGraphAssetCommand command)
{
if (ReferenceEquals(Selection.activeObject, graphToolState.WindowState.AssetModel))
{
Selection.activeObject = null;
}
if (graphToolState.WindowState.GraphModel != null)
{
var graphProcessingStateComponent = graphToolState.GraphProcessingState;
// force queued graph processing to happen now when unloading a graph
if (graphProcessingStateComponent.GraphProcessingPending)
{
// Do not force graph processing if it's the same graph
if ((command.AssetPath != null && graphToolState.WindowState.AssetModel.GetPath() != command.AssetPath) ||
(command.Asset != null && graphToolState.WindowState.AssetModel != command.Asset))
{
GraphProcessingHelper.ProcessGraph(graphToolState.WindowState.GraphModel, command.PluginRepository,
RequestGraphProcessingOptions.Default, graphToolState.TracingStatusState.TracingEnabled);
}
using (var graphProcessingStateUpdater = graphToolState.GraphProcessingState.UpdateScope)
{
graphProcessingStateUpdater.GraphProcessingPending = false;
}
}
}
using (var windowStateUpdater = graphToolState.WindowState.UpdateScope)
{
if (command.TruncateHistoryIndex >= 0)
{
windowStateUpdater.TruncateHistory(command.TruncateHistoryIndex);
}
switch (command.LoadStrategy)
{
case LoadStrategies.Replace:
windowStateUpdater.ClearHistory();
break;
case LoadStrategies.PushOnStack:
windowStateUpdater.PushCurrentGraph();
break;
case LoadStrategies.KeepHistory:
break;
}
var asset = command.Asset;
if (asset == null)
{
asset = OpenedGraph.Load(command.AssetPath, command.FileId);
}
if (asset == null)
{
Debug.LogError($"Could not load visual scripting asset at path '{command.AssetPath}'");
return;
}
graphToolState.LoadGraphAsset(asset, command.BoundObject);
var graphModel = graphToolState.WindowState.GraphModel;
((Stencil)graphModel?.Stencil)?.PreProcessGraph(graphModel);
CheckGraphIntegrity(graphToolState);
}
}
